Alyza IQ PO4

OPERATIONS MANUAL

ba76201e09 12/2022

Alyza IQ PO4

1- AND 2-CHANNEL MEASURING SYSTEMS FOR ONLINE DETERMINATION

OF ORTHO-PHOSPHATE IN AQUEOUS SAMPLES

Alyza IQ PO4

ba76201e09 12/2022

Contact YSI

1725 Brannum Lane

Yellow Springs, OH 45387 USA

Tel: +1 937-767-7241

800-765-4974

Email: [email protected]

Internet: www.ysi.com

For the most recent version of the manual, please visit

www.ysi.com

Alyza IQ PO4 Contents

ba76201e09 12/2022

Contents

1 Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7

1.1 How to use this component operating manual . . . . . . . . . . . . . . 7

1.2 Metrological basics PO4-P, PO4 . . . . . . . . . . . . . . . . . . . . . . . . . . 8

1.3 Product description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

1.3.1 Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

1.3.2 Measuring unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

1.3.3 ChemBags . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

1.3.4 Status LEDs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

1.3.5 Instrument variants . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

1.3.6 Sample filtration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

1.4 Name plates . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20

2 Safety instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . .22

2.1 Safety information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22

2.1.1 Safety information in the operating manual . . . . . . . . . . . . . 22

2.1.2 Safety signs on the product . . . . . . . . . . . . . . . . . . . . . . . . . 22

2.1.3 Further documents providing safety information . . . . . . . . . 22

2.2 Safe operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23

2.2.1 Authorized use . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23

2.2.2 Requirements for safe operation . . . . . . . . . . . . . . . . . . . . . 23

2.2.3 Unauthorized use . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23

2.3 User qualification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23

2.4 Personal protective equipment (PPE) . . . . . . . . . . . . . . . . . . . . . 24

3 Commissioning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .25

3.1 IQ SENSORNET system requirements . . . . . . . . . . . . . . . . . . . . . . 25

3.2 Scope of delivery . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25

3.2.1 Scope of delivery of the Alyza IQ . . . . . . . . . . . . . . . . . . . . . 25

3.2.2 Accessories required in addition . . . . . . . . . . . . . . . . . . . . . 26

3.3 Basic principles of installation . . . . . . . . . . . . . . . . . . . . . . . . . . 27

3.3.1 Requirements of the measurement location . . . . . . . . . . . . 27

3.3.2 Safety requirements of the electrical installation . . . . . . . . . 27

3.3.3 General installation instructions . . . . . . . . . . . . . . . . . . . . . . 28

3.3.4 Installing the housing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30

3.3.5 Installation on the SM stand mount . . . . . . . . . . . . . . . . . . . 30

3.3.6 Installation on a rail . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35

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3.3.7 Installation on a wall . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40

3.3.8 Removing the transport protection of the measuring unit . . . 42

3.3.9 Connecting the cables to the control unit ACM . . . . . . . . . . 43

3.3.10 Mounting the cover plate for the control unit ACM . . . . . . . . 44

3.3.11 Installing the bug screen and condensate drain adapter . . . 45

3.3.12 Mounting the terminal holder (TM) . . . . . . . . . . . . . . . . . . . . 47

3.3.13 Connecting the power cable and heat tracing lines . . . . . . . 50

3.3.14 Mounting the collection funnel . . . . . . . . . . . . . . . . . . . . . . . 59

3.3.15 Mounting the WF Set (collection funnel for sample overflow) 62

3.3.16 Installing the FM/PC filter module and M 1.5 basin holder for

filtration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 64

3.3.17 Connecting the tubes and liquid lines . . . . . . . . . . . . . . . . . . 66

3.3.18 Setting up a connection with the IQ S

ENSORNET system . . . 69

3.3.19 Taking the filtration pumps into operation . . . . . . . . . . . . . . 70

3.4 Initial commissioning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 72

3.4.1 Checklist for commissioning . . . . . . . . . . . . . . . . . . . . . . . . . 72

3.4.2 Stick the label (national language)

onto the locking device of the MultiPort valve . . . . . . . . . . . 73

3.4.3 Carrying out the install wizard . . . . . . . . . . . . . . . . . . . . . . . 74

3.4.4 Preparing the Alyza IQ for measuring . . . . . . . . . . . . . . . . . 76

4 Measurement / Operation . . . . . . . . . . . . . . . . . . . . . . .78

4.1 General operating principles . . . . . . . . . . . . . . . . . . . . . . . . . . . . 78

4.2 Measurement operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 79

4.2.1 Determination of measured values . . . . . . . . . . . . . . . . . . . . 79

4.2.2 Starting the measuring operation . . . . . . . . . . . . . . . . . . . . . 79

4.2.3 Measuring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 79

4.3 Settings for the Alyza IQ . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 80

4.3.1 IQ S

ENSORNET Settings of sensors and diff. sensors . . . . . . 80

4.3.2 Priority . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 84

4.3.3 Damping . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 84

4.4 Calibration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 85

4.4.1 Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 85

4.4.2 Calibration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 86

4.4.3 Calibration history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 89

4.4.4 Reactivating the last valid calibration . . . . . . . . . . . . . . . . . . 89

4.5 Information on the Alyza IQ . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 90

4.5.1 Information on the current operating condition

(Tab Status) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 90

4.5.2 Information on the expected lifetimes of replacement parts

(tab Remaining) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 91

4.5.3 Information on maintenance activities and calibration

procedures (tab History) . . . . . . . . . . . . . . . . . . . . . . . . . . . . 93

4.5.4 More information on the Alyza IQ (tab Info) . . . . . . . . . . . . . 96

4.6 Transferring information to a USB memory device via the

IQ SENSORNET Alyza IQ Contents

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Alyza IQ . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 96

4.6.1 Transferring to a USB memory device a selection of important

operating data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 97

4.6.2 Transferring detailed operating data to a USB memory device

for evaluation by the service department . . . . . . . . . . . . . . . 97

4.7 Software update for the Alyza IQ . . . . . . . . . . . . . . . . . . . . . . . . . 98

5 Maintenance and cleaning . . . . . . . . . . . . . . . . . . . . .101

5.1 Hazard warnings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 101

5.2 Opening the locking device of the MultiPort valve

("Before opening: Drain the system") . . . . . . . . . . . . . . . . . . . . 102

5.3 Replacement parts, accessories . . . . . . . . . . . . . . . . . . . . . . . . 106

5.4 Overview of the maintenance and cleaning activities . . . . . . . 108

5.5 Installing / exchanging the ChemBags, MPV, tubes . . . . . . . . 111

5.5.1 Start the maintenance routine of the Alyza IQ . . . . . . . . . . 112

5.5.2 Prepare the maintenance activities . . . . . . . . . . . . . . . . . . 113

5.5.3 Open the measuring unit . . . . . . . . . . . . . . . . . . . . . . . . . . 113

5.5.4 Installing the MultiPort valve (MPV) and tubes . . . . . . . . . 115

5.5.5 Remove the ChemBags for maintenance activities . . . . . . 118

5.5.6 Check the collection tray under the ChemBags for

liquids . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 119

5.5.7 Installing the ChemBags . . . . . . . . . . . . . . . . . . . . . . . . . . 121

5.5.8 Terminating the maintenance routine . . . . . . . . . . . . . . . . 124

5.6 Cleaning the sample filtration and sample feed . . . . . . . . . . . 124

5.6.1 Mechanical cleaning of the filter plate . . . . . . . . . . . . . . . . 125

5.6.2 Chemical cleaning of the filter plate . . . . . . . . . . . . . . . . . . 126

5.6.3 Storing a used and cleaned filter plate . . . . . . . . . . . . . . . 128

5.6.4 Replacing the filter plate of the sample filtration . . . . . . . . 128

5.6.5 Cleaning the sample feed, overflow vessel and outlet . . . . 129

5.7 Maintenance activities at the housing . . . . . . . . . . . . . . . . . . . 135

5.7.1 Cleaning the housing of the Alyza IQ . . . . . . . . . . . . . . . . 135

5.7.2 Changing the filter mats . . . . . . . . . . . . . . . . . . . . . . . . . . . 136

5.7.3 Checking the temperature control . . . . . . . . . . . . . . . . . . . 137

5.8 Maintenance activities at the power supply box . . . . . . . . . . . 139

5.9 Emptying the system manually . . . . . . . . . . . . . . . . . . . . . . . . . 144

5.10 SystemCheck . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 147

6 Maintenance and cleaning (complex activities) . . . .149

6.1 Decommissioning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 149

6.1.1 Preparing the decommissioning . . . . . . . . . . . . . . . . . . . . 149

6.1.2 Decommissioning the measuring unit . . . . . . . . . . . . . . . . 151

6.1.3 Decommissioning for transport or storage . . . . . . . . . . . . . 154

Contents IQ SENSORNET Alyza IQ

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6.2 Complex maintenance- and cleaning activities in the measuring

unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 154

6.2.1 Dismounting the measuring unit . . . . . . . . . . . . . . . . . . . . . 155

6.2.2 Carrying out complex maintenance activities . . . . . . . . . . . 156

6.2.3 Check the waste collector for coating . . . . . . . . . . . . . . . . . 156

6.2.4 Installing the measuring unit . . . . . . . . . . . . . . . . . . . . . . . . 159

6.3 Transport, storage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 159

6.3.1 General notes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 159

6.3.2 Preparing the Alyza IQ for transport or storage . . . . . . . . . 160

6.4 Recommissioning the Alyza IQ . . . . . . . . . . . . . . . . . . . . . . . . . 162

7 What to do if ... . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .163

8 Technical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .170

8.1 Measuring characteristics PO4-P, PO4 . . . . . . . . . . . . . . . . . . . 170

8.2 Application conditions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 171

8.3 General data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 172

8.4 Electrical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 175

8.5 Consumption data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 176

9 Lists . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .177

9.1 Explanation of the messages . . . . . . . . . . . . . . . . . . . . . . . . . . . 177

9.1.1 Error messages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 177

9.1.2 Informative messages . . . . . . . . . . . . . . . . . . . . . . . . . . . . 181

9.2 Status info . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 185

10 Disposal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .186

11 Appendix . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .187

11.1 Glossary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 187

12 Contact Information . . . . . . . . . . . . . . . . . . . . . . . . . .189

12.1 Ordering & Technical Support . . . . . . . . . . . . . . . . . . . . . . . . . . 189

12.2 Service Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 189

Alyza IQ PO4 Overview

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1Overview

1.1 How to use this component operating manual

Structure of the

IQ S

ENSORNET

operating manual

The IQ S

ENSORNET operating manual has a modular structure like the

IQ S

ENSORNET system itself. It consists of a system operating manual and the

operating manuals of all the components used.

Please file this component operating manual into the ring binder of the system

operating manual.

IQ S

ENSORNET System operating manual (ring binder)

Operating manuals for components and

options (e.g. field bus)

figure 1-1 Structure of the IQ SENSORNET operating manual

...

Power

Overview Alyza IQ PO4

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1.2 Metrological basics PO4-P, PO4

Phosphate The salts of the phosphoric acid are called phosphates. In the case of simple

phosphoric acid (orthophosphoric acid, H

), this is orthophosphate (anion

Measuring method The Alyza IQ PO4 analyzer measures the concentration of orthophosphate in

an aqueous solution with the aid of the vanadate molybdate method (yellow

method).

The reagent contains an aqueous solution of ammonium monovanadate NH

and ammonium heptamolybdate (NH

)

with an addition of sulfuric

acid H

. In an acidic environment, the chemical reaction takes place accord-

ing to the following molecular formula:

+ 2 VO

+ 10 MoO

+ 20 H

→ [PV

]

+ 10 H

The originally pale yellow reagent will turn a deep yellow. The change of absor-

bance is photometrically measured at a wavelength of 400 nm. From this, the

concentration of orthophosphate is calculated.

Citation forms Phosphate concentration is quoted in milligrams per liter (mg/l). This value can

either refer to all orthophosphate ions or to the phosphorus atom included in

them. The values can be converted as follows:

 1 mg/l P = 3.066 mg/l PO4

 1 mg/l PO4 = 0.3261 mg/l P

Concentration values referring to the phosphorus atom are indicated by the ad-

dition PO4-P (citation form).

1.3 Product description

1.3.1 Overview

Application Analyzers of the Alyza IQ series are designed for online measurements in aque-

ous samples.

Measurement takes place photometrically, at adjustable intervals, including au-

tomatic sampling (sample filtration and sample feed).

Measuring system Analyzers of the Alyza IQ series are operated as "sensors" in the

Variant Measurement

Alyza IQ PO4 Orthophosphate measurements

e.g.

Measurements for regulation of precipitant dosing in

waste water treatment plants

Measurements in the final effluents of waste water

treatment plants

Measurements for water body and river monitoring

Alyza IQ PO4 Overview

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IQ SENSORNET.

The following components are required for operation of the AlyzaIQ:

Component /

function

Explanation

Sensor The Alyza IQ analyzer is an IQ S

ENSORNET sensor

with special functions.

Controller,

terminal

connection module

For controlling, and to display the measured val-

ues, the Alyza IQ requires a functioning

IQ S

ENSORNET system.

Examples of simple IQ S

ENSORNET systems (min-

imum configuration):

 IQ S

ENSORNET system (2 components):

– 1 terminal/controller (e.g.MIQ/TC 2020 3G)

for operation and display of measured val-

ues

– 1 module (e.g. MIQ/JB)

to establish the connection between the ter-

minal/controller and sensor

 IQ S

ENSORNET system (1 component):

– DIQ/S 28X

Mounting The Alyza IQ must be safely mounted for opera-

tion. The following mounting variants are avail-

able:

 Wall mounting assembly (WM)

 Railing support mounting (RM)

 Mounting stand (SM)

Sample filtration,

sampling

 Sample feed Alyza IQ variant with filtration pumps (1 or 2) to

feed the sample to the Alyza IQ

The sample is externally taken and made available

inside the Alyza IQ.

 Sample filtration Filtration module (FM/PC) with frame and filter

plate

 Lines for the trans-

port of liquids, with

heat tracing

Lines with heat tracing for

1 x or 2 x intake line (SH - ...),

1 x return line (RH - ...) and, if necessary,

1 x return line (RH - ...)

for the separate disposal

of chemical waste from the measuring unit

Overview Alyza IQ PO4

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Instrument design fig. 1-2,  10 shows the main components of the Alyza IQ.

figure 1-2 Main components of the Alyza IQ (example: variant with 2 filtration pumps)

1 Cover for the control unit ACM

2 Mounting plate

3 Switch for internal 24 VDC supply

4 Power supply box, behind the mounting plate (120 V / 240 V AC)

5 Channel 2: Filtration pump (installed or free)

6 Channel 2: Overflow vessel 2 (installed or free)

7 Channel 1: Filtration pump (installed or free)

8 Channel 1: Sample feed tube, blue (to the overflow vessel)

9 Channel 1: Overflow vessel (installed or free)

10 Channel 1: Intake line, blue

11 Measuring unit

12 Cooling unit

13 Special tool for mounting the tubes

– at the receptacle for the MultiPort valve

– at the overflow vessels

Alyza IQ PO4 Overview

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The measuring unit ready for operation (11) includes the following components

– Front cover with light duct for the status LED of the measuring unit

– Control unit (ACS)

– Locking device of the MultiPort valve (MPV)

– MultiPort valve (MPV)

– Photometer unit

– Chemicals (ChemBags)

Temperature

control

For correct measurements, the operating temperature of the AlyzaIQ is con-

trolled inside the housing in the following areas.

Thus the Alyza IQ with the door closed is suitable for all-season operation in the

open. The temperature control is automatically active when the Alyza IQ is con-

nected to the power supply and the switch at the switch box is in the ON position.

Range Temperature control

Housing inside frost free

Measuring unit 20 °C (68 °F)

Photometer unit 45 °C (113 °F)

Where there is a chance of frost, the intake lines and return lines

must be provided with heat tracing in order to maintain the sample

feed.

Overview Alyza IQ PO4

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Power supply and

communication

fig. 1-3,  12 shows the power supply and communication interfaces of the

Alyza IQ.

Operation The Alyza IQ is connected to the IQ S

ENSORNET via the IQ SENSORNET cable

(SNCIQ) connected to the control unit ACM and conducted to the outside.

The Alyza IQ is operated with a terminal on the IQ S

ENSORNET.

If maintenance activities are being carried out on the open Alyza IQ, a terminal

for operation must be installed or docked in the vicinity of the Alyza IQ.

figure 1-3 Block diagram Alyza IQ

Alyza IQ

Photometer unit

(Options)

Line voltage

input

IQ Sensor Net (data + power)

e.g. SN 18110005

Control unit ACM

IQ Sensor Net interface

e.g. SN 18110258

Legend:

P , P Filtration pumps

p1 P2

H1 ... H4 Heat tracing

(feed lines, return lines)

Control unit ACS

24 V DC

Drive unit

MultiPort valve

USB

...

e.g. SN 18110005

Ethernet

Measuring unit

Daten+Energie

Switch box

On/Off

Power supply box

Overload protection

Line power filter

Power supply

Outputs

Information on IQ SENSORNET terminals is given in the relevant

IQ S

ENSORNET system operating manual.

Alyza IQ PO4 Overview

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Liquid circle fig. 1-4,  13 shows the liquid circle of the Alyza IQ.

figure 1-4 Liquid circle

1 Intake lines for channel 1 (1a) and 2 (1b)

2 Filtration pumps for channel 1 (2a) and 2 (2b)

3 Overflow vessels for channel 1 (3a) and 2 (3b)

4 Collection funnel for the sample overflow from the overflow vessels

5 Return line for the sample overflow from the overflow vessels

6 Syringe pump

7 ChemBags (reagents, standards, cleaning solution)

8 MultiPort valve

9 Photometer

10 Collection funnel for the waste from the measuring unit

11 Return line for the waste from the measuring unit

1b 1a

Alyza IQ

C-

S-

R-...B

R-...A

Overview Alyza IQ PO4

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1.3.2 Measuring unit

fig. 1-5,  14 shows the open measuring unit (without front cover).

How it functions The measuring unit is controlled and supplied with DC voltage by the control unit

ACM. Communication with the IQ S

ENSORNET takes place via the

IQ S

ENSORNET cable, as with all other sensors.

In the overflow vessel, sample that is fresh, filtrated, and nearly free of air bub-

bles is quasi continuously provided for the measurements. The filtration unit

(FM/PC - available as an accessory) in conjunction with the filtration pump (in-

strument variant) provides an optimally prepared sample.

A syringe pump in the measuring unit makes all the liquids move (sample, re-

agents, standard solutions, cleaning solutions).

figure 1-5 Open measuring unit (without front cover)

1 Tube fastening

2 Control unit ACS

3 Locking device of the MultiPort valve (MPV)

4 Receptacle for the MultiPort Valve (MPV) with tubes

5 Contact that detects whether the measuring unit is closed with the

front cover.

(If there is the risk of condensation of air humidity in an open

measuring unit, a warning is triggered.)

6 Status LED of the measuring unit

(The status of the status LED is visible through a light duct at the

outside of the front cover.)

7 Waste tube of the measuring unit

8 ChemBags, suspended from a supporting rod

9 Photometer unit

Alyza IQ PO4 Overview

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The MultiPort Valve (4) runs each of the moving liquids to the place where they

are required. The dosing of the reagents to the sample takes place in the mixing

chamber in the MultiPort valve.

The sample mixed with reagents is then moved to the cell in the photometer unit

(9) to be measured.

fig. 1-5,  14 shows the open photometer unit (without front cover).

The photometer unit has an LED as the light source and a photo diode as the

detector. After the measurement, the liquid is removed from the photometer unit

through the waste tube (4).

1.3.3 ChemBags

The Alyza IQ has an extra counter for each liquid container. The counter counts

the consumption of the following procedures as soon as the function is started:

 Measuring

 Calibration

 Cleaning

figure 1-6 Photometer unit (without front cover)

1 Photometer

2 Cell holder with connectors for tubes

3 Photometer feed tube (MPV mixing chamber - cell)

4 Photometer drain tube (cell - waste tube)

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Other procedures that consume liquids are not counted (e.g. Fill the system).

If the remaining time of a ChemBag is less than 30 days, a log book message is

automatically generated.

Special bags (ChemBags) are used as liquid containers in the Alyza IQ. To

guarantee the shelf life of the liquids (reagents, standard solutions, cleaning

solutions) the ChemBags are coated with aluminium and encase the chemicals

airtight.

The ChemBags are suspended from a supporting rod with the valves pointing

downward.

Installing (even for the first time) and replacing the ChemBags are maintenance

activities, carried out at and documented menu-guided by the Alyza IQ.

Replace the ChemBags before the liquids are used up.

1.3.4 Status LEDs

The status LEDs indicate the statuses of the components:

Status-LED at the

filtration pump

The current counter reading for the ChemBags can be viewed in the

Alyza menu (tab Remaining).

In the overview, the remaining time is displayed in days (Days).

You can display more details for each ChemBag with <OK>.

Attention: The remaining times are only correct if the date of expiry

was correctly entered.

Keep the original caps of the ChemBags. They can be screwed on

for disposal.

LED Meaning

Off No power supply

Green The filtration pump is ready to operate and waiting for the next

action.

Red The filtration pump is making a pump movement.

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Status LED at the

front cover of the

measuring unit

1.3.5 Instrument variants

The Alyza IQ analyzer is available in different versions. The variant is given in

the type designation on the name plate.

LED Meaning

Off No power supply

Red Error

The Alyza IQ is stopped, details see log book

Red, flashes

quickly

(in addition,

a beep is to

be heard)

Close the front cover of the measuring unit immedi-

ately.

Risk of damage due to the formation of condensa-

tion water on electronic components within the mea-

suring unit.

If the measuring unit is opened for longer than 3

minutes, the Alyza IQ is automatically stopped to

avoid damage due to condensation.

Green The measuring unit is in one of the following states:

– Ready for operation, waiting for the next action

– Getting ready for operation (booting up)

Green,

flashes

slowly

The measuring unit carries out an action e.g.

Measuring, calibrating, cleaning

Blue The Alyza IQ was stopped manually (by the user).

The measuring unit is not (yet) ready to be opened.

Blue, flash-

ing

The control unit ACS starts.

White The Alyza IQ was stopped manually (by the user).

The measuring unit is ready to be opened.

White, flash-

ing

The Alyza IQ was stopped manually (by the user).

The locking device of the MultiPort valve is ready to

be opened.

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Structure of the

name plate

Type designation

(details)

figure 1-7 Structure of the type designation

1 X: Measurement procedure

Y: Measuring range

Z: Number of channels

Alyza IQ PO4-XYZ

Identifier Val-

ues

Variant

(Variant:

measuring pro-

cedure)

1 Photometric measurement (yellow method)

(Variant:

measuring

range)

1 Measuring range for low concentrations

2 Measuring range for higher concentrations

(Variant

sample chan-

nels)

Sample channels (number)

(Z = 0, 1, 2, depending on the variant of the

Alyza IQ)

Each sample channel enables to provide

sample from one source.

For each sample channel, extra components

are required (e.g. filtration pump, overflow

vessel).

The number of sample channels can be

adapted.

0 The test sample has to be provided for the

measurement by external sampling.

Please heed the requirements of the sample.

1 The test sample is automatically fed from a

source and provided for the measurement.

2 The test sample is automatically fed from two

sources and provided for the measurement.

3 115 Input voltage 115 V AC

It is possible to retrofit a variant to a different variant (identifier Y, Z)

by installing or dismantling components (contact the service depart-

ment).

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Filtration pumps

(instrument vari-

ants:

1 channel or

2 channels)

The filtration pump is optimally adjusted to the sample filtration available as an

accessory.

fig. 1-8,  19 shows a filtration pump in the Alyza IQ.

The filtration pump quasi continuously draws sample through the intake line (5)

and pumps it into the overflow vessel (3) through the sample feed tube (2). The

flow rate can be set with the control knob on the control panel (1). On the intake

side, a manometer (6) is installed for low pressure measurement.

To provide sample liquid with the required quality, it is necessary to use a suit-

able sample filtration (available as an accessory).

1.3.6 Sample filtration

To separate the particles in the sample, the preassembled filter module FM/PC

is available as an accessory. It is connected to the Alyza IQ via an intake line.

The filtration pump in the Alyza IQ draws in the filtered sample.

The preassembled filter module (FM/PC) consists of a separable PVC frame

(FM Case/PC) and a filter plate (Filter/PC). With the aid of the M 1.5 basin at-

tachment for filtration, the FM filter module FM/PC can be immersed in the mea-

suring medium and can be adjusted in height. To clean the filter plate, the filter

figure 1-8 Filtration pump channel 1

1 Filtration pump (control panel with rotary knob)

2 Sample feed tube (to the overflow vessel)

3 Overflow vessel

4 Sample overflow tube (sample overflow from the overflow vessel)

5 Intake line

6 Manometer (filtration pump)

The sample filtration must prepare the sample so that the sample

quality meets the requirements of the measuring unit (see

section 8.2 Application conditions,  171).

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unit can be pulled out along a guide rail with a chain.

The intake line is in a robust sleeve tube. Intake lines are available in different

lengths and with auxiliary heating to protect against frost (depending on the line

voltage).

fig. 1-9,  20 shows an application example in a sedimentation tank.

The return lines transport the liquids collected in the collection funnel (sample

from the overflow vessels and the liquid chemical waste from the measuring

unit) out of the housing. Return lines with heat tracing are available for frost pro-

tection.

1.4 Name plates

The following components have name plates:

figure 1-9 Sample filtration device (installed)

1 Chain (scope of delivery: Basin holder for filtration M 1.5)

2 Guide rail (scope of delivery: Attachment for filtration M 1.5)

3 Height adjustable slide (scope of delivery: Suction line)

4 Intake line (scope of delivery: Suction line)

5 Sleeve tube (scope of delivery: Suction line)

6 Filter module (FM Case/PC) with filter plate (Filter/PC)

Order information on accessory items:

see section 5.3 Replacement parts, accessories,  106

Component Place of the name plate

Alyza IQ basic instru-

ment

center, on the left-hand inside housing wall

Measuring unit outside, on the left rear side of the measuring unit

and

on the front of the MPV drive unit

Photometer at the photometer

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MultiPort valve (MPV) on the side of the MPV

Mounting plate on the right-hand side of the switch box

Sleeve tubes of the

intake lines and return

lines

at the end of the line (toward the Alyza IQ )

Keep the series numbers on the name plates ready for any service

requests.

The serial numbers of the following components can also be queried

via the Alyza menu, tab Info:

 Ser. no. MIQ/Alyza (housing/ACM)

 Ser. no. Alyza IQ (measuring unit/ACS)

 Ser. no. of photometer

 Ser. no. MultiPort Valve (MPV)

Component Place of the name plate

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2 Safety instructions

2.1 Safety information

2.1.1 Safety information in the operating manual

This operating manual provides important information on the safe operation of

the product. Read this operating manual thoroughly and make yourself familiar

with the product before putting it into operation or working with it. The operating

manual must be kept in the vicinity of the product so you can always find the in-

formation you need.

Important safety instructions are highlighted in this operating manual. They are

indicated by the warning symbol (triangle) in the left column. The signal word

(e.g. "CAUTION") indicates the level of danger:

NOTE

indicates a situation where goods might be damaged if the actions mentioned

are not taken.

2.1.2 Safety signs on the product

Note all labels, information signs and safety symbols on the product. A warning

symbol (triangle) without text refers to safety information in this operating man-

ual.

2.1.3 Further documents providing safety information

The following documents provide additional information, which you should

observe for your safety when working with the measuring system:

 Operating manuals of other components of the IQ S

ENSORNET system

(power packs, controller, accessories)

 Labels on the chemical containers (ChemBags)

 Safety datasheets of calibration and maintenance equipment (e.g. cleaning

solutions). Safety datasheets provide security relevant information on haz-

ardous materials and mixtures. Carefully read the safety datasheets and fol-

low all instructions. We recommend that you store all datasheets in one

folder.

WARNING

indicates a possibly dangerous situation that can lead to

serious (irreversible) injury or death if the safety instruc-

tion is not followed.

CAUTION

indicates a possibly dangerous situation that can lead to

slight (reversible) injury if the safety instruction is not fol-

lowed.

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2.2 Safe operation

2.2.1 Authorized use

The authorized use of the Alyza IQ is its use as a sensor in the IQ S

ENSORNET.

Only the operation and running of the Alyza IQ according to the instructions and

technical specifications given in this operating manual is authorized (see

chapter 8 Technical data,  170). Any other use is considered unauthorized.

With unauthorized use, the protection type supported by the instrument can be

adversely affected.

2.2.2 Requirements for safe operation

Note the following points for safe operation:

 The product may only be operated according to the authorized use specified

above.

 The product may only be operated under the environmental conditions men-

tioned in this operating manual.

 The product may only be supplied with power by the energy sources men-

tioned in this operating manual.

 The product may only be opened if this is explicitly described in this operating

manual (example: connecting electrical lines to the terminal strip).

2.2.3 Unauthorized use

The product must not be put into operation if:

 it is visibly damaged (e.g. after being transported)

 it was stored under adverse conditions for a lengthy period of time (storing

conditions, see chapter 8 Technical data,  170).

2.3 User qualification

Target group The IQ SENSORNET system was developed for online analysis. Some mainte-

nance activities, such as exchanging the ChemBags or tubes, require the safe

handling of chemicals. Thus, we assume that the maintenance personnel is fa-

miliar with the necessary precautions to take when dealing with chemicals as a

result of their professional training and experience.

Special user

qualifications

The following installation activities may only be performed by a qualified electri-

cian:

 Connecting power cables to the line power supply and the line power box.

 Connecting the heat tracing lines to the connectors of the line power box

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2.4 Personal protective equipment (PPE)

The PPE includes clothing and other equipment that is used to protect you

against risks at your place of work. You must always wear your PPE while doing

dangerous jobs to avoid injuries or damage to your health.

The following table shows the PPE that is required while dealing with dangerous

chemicals such as when exchanging the ChemBags. More detailed information

is given on the labels of the ChemBags and in the relevant safety data sheets.

figure 2-1 Personal protective equipment

Personal protective equipment Typical examples

Protective clothing with long sleeves

Protective goggles

Chemical resistant gloves

Safety shoes

It is the duty of the operator to provide all users with the required

PPE. The PPE must fulfill the national standards and laws.

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3 Commissioning

3.1 IQ SENSORNET system requirements

Software versions

of the controller

and terminal

components

The operation of the Alyza IQ requires the following software versions in the

IQ S

ENSORNET:

3.2 Scope of delivery

3.2.1 Scope of delivery of the Alyza IQ

The following parts are included in the scope of delivery of the Alyza IQ:

 Housing (Alyza IQ PO4-XYZ) with

– mounted and wired installations

– mounted power cable (approx. 2 m)

– mounted IQ S

ENSORNET cable (approx. 2 m)

 Key for outer housing door

 Switch cabinet key for interior door

 Cover plate for the control unit ACM

 Bug screen (mounting set)

 Collection funnel (mounting set)

 MultiPort valve (MPV)

 Labels in the national language (for the locking device of the MultiPort valve)

 2 single tubes

– Tube to connect the ChemBag for standard 2 to the MPV:

It needs to be installed if the function 2-point calibration is selected.

– Tube to connect the ChemBag for reagent B to the MPV:

It needs to be installed if the function Backgr. corr.(opt) is selected.

 Operating manual

Check whether the scope of delivery is complete before starting the installation.

MIQ/MC2 Version 3.79 or higher

MIQ/TC 2020 XT Version 3.79 or higher

MIQ/MC3 Version 3.79 or higher

MIQ/TC 2020 3G Version 3.79 or higher

DIQ/S 28X Version 3.79 or higher

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3.2.2 Accessories required in addition

Depending on the application, the following additional accessories are required

or recommended for operation. We explicitly recommend that you use original

accessories:

Mounting

accessories

The mounting accessories are used to securely install the instrument at the

mounting location.

The following variants are available:

 Rail mount RM

 Wall mount WM

 Stand mount SM

Mount for a

terminal

 Mount TM for fastening and operation of an MIQ module, e.g. MIQ/JB and

terminal/controller MIQ/TC 2020 3G or DIQ/S 28X

ChemBags Depending on the type, variant and configuration of your Alyza IQ, you need one

or several ChemBags for each of the following options:

 Reagent solution (R-...) suitable for measured parameter and measuring

range

 Standard solution (S-...) suitable for the measured parameter, measuring

range, and calibration procedure

 Reagent solution (C-...) suitable for measured parameter and measuring

range

MultiPort valve  MultiPort valve (MPV)

Sample

preparation

(filtration)

 Filter module FM/PC

(frame FM Case/PC incl. preassembled filter plate Filter/PC)

 Basin holder for filtration M 1.5 for frame FM Case/PC, also available with

extension M-EXT 1.5

Sample inlet,

sample drain

 Intake line SH ... (different lengths up to 20 m, with and without heat tracing

[240 VAC or 120 VAC])

 Return line RH ... (different lengths up to 20 m, with and without heat tracing

[240 VAC or 120 VAC])

The sample filtration must prepare the sample so that the sample

quality meets the requirements of the measuring unit (see

section 8.2 Application conditions,  171).

Order information referring to accessories is given in section 5.3 Re-

placement parts, accessories,  106.

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3.3 Basic principles of installation

3.3.1 Requirements of the measurement location

The measurement location must meet the environmental conditions specified in

section 8.3 General data,  172.

Controlled

ambient

conditions

Work on the open instrument (e.g. during mounting, installation, maintenance)

may only be carried out under controlled environmental conditions:

If the Alyza IQ is already in operation, the temperature of the measuring unit

must be adapted to the ambient temperature prior to opening the measuring

unit. The temperature adaptation is done with the function Prepare to open mea-

suring unit. As soon as the measuring unit is ready to be opened, this is dis-

played in the Status tab. The status LED of the measuring unit lights up white.

NOTE

The interior of the measuring unit is temperature-controlled to 20 °C (68 °F).

With ambient temperatures over 25 °C (77 °F) and high air humidity, conden-

sation water may develop on the cool surfaces and cause damage when the

measuring unit is opened.

To avoid damage of the measuring unit due to the formation of condensation

water, always wait for the temperature adjustment (function Prepare to open

measuring unit) to be completed before opening the measuring unit.

3.3.2 Safety requirements of the electrical installation

The safety of the system into which the instrument is integrated is the responsi-

bility of the builder of the system.

Electrical equipment (e.g. motors, contactors, cables, lines, relays, switches, in-

struments) must meet the following requirements:

 Compliance with national regulations (e.g. NEC, VDE and IEC)

 Suitability for the electrical conditions at the place of installation

– Maximum operational voltage

– Maximum operational current

 Suitability for the ambient conditions at the place of installation

– Temperature resistance (minimum and maximum temperature)

– Stability against UV light in the case of outdoor usage

– Protection against water and dust (Nema or IP type of protection).

 Suitable fuse protection of the electrical circuit

Temperature range + 5 ... + 40 °C (+ 41 ... +104 °F)

Relative air humidity ≤ 80 %

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– Overcurrent protection devices

(according to the technical data of the instrument input or output)

– Overvoltage class II surge limiters

 Suitable disconnecting device (e.g. switch or circuit breaker) for the line

power supply of permanently mounted equipment with separate line power

connection,

– labeled as disconnecting device for this instrument

– compliant with the following regulations

- IEC 60947-1

- IEC 60947-3

– in the vicinity of the instrument (recommendation)

 Fault current protection switch (ground fault circuit interrupter)

especially with operation of heat tracings

 Flame resistant (cable and lines),

compliant with the following regulations

– UL 2556 VW-1 (for USA, Canada)

– IEC 60332-1-2 (outside of USA, Canada)

3.3.3 General installation instructions

Pay attention to the following points during installation:

 The measuring device is shipped in protective transport packaging.

We recommend: Keep the packaging material.

The original packaging protects the measuring device from transport damage

 Due to its weight, the Alyza IQ always has to be carried by two people (hous-

ing door upward, both people grasping the housing at the upper C rail and at

the housing bottom on the side of the door).

 Wear safety shoes for transport, installation and mounting work (see

section 2.4 Personal protective equipment (PPE),  24).

 Installation in the open should be done while the weather is frost-free

(environmental conditions, see section 3.3.1 Requirements of the measure-

ment location,  27).

Details on the conditions at the installation site:

See chapter 8 Technical data,  170.

This section describes the installation of the Alyza IQ with various,

especially designed accessories. We assume that the operator uses

these accessories. In this section, the individual scopes of delivery

are not distinguished so the comprehensibility of the operating man-

ual is not affected.

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 Mount the Alyza IQ in a straight position (check, for example, with a water

level) to ensure that the liquids can drain off optimally.

 Mount the Alyza IQ so that the space under the housing bottom is always free

for ventilation of the housing.

 Mount the Alyza IQ at a suitable height so that the liquids in the return lines

(into the basin) can freely drain off at a steady slope.

 The Alyza IQ may only be fastened on a wall or fixture with the aid of the two

C-rails (housing upright).

 For mounting work, only use the mounting accessories included in the scope

of delivery (screws, washers, springs, nuts). This ensures the safe fastening

at the mounting location.

Main steps Installation of the Alyza IQ includes the following main steps:

1 Installing the housing (see section 3.3.4 Installing the housing,  30).

2 Removing the transport protection of the measuring unit (see

section 3.3.8 Removing the transport protection of the measuring unit,

 42).

3 Connecting the cables to the control unit ACM (see section 3.3.9 Con-

necting the cables to the control unit ACM,  43).

4 Mounting the cover plate for the control unit ACM (see section 3.3.10

Mounting the cover plate for the control unit ACM,  44).

5 Installing the bug screen and condensate drain adapter (see

section 3.3.11 Installing the bug screen and condensate drain adapter,

 45).

6 With the relevant accessories:

Mounting the terminal holder (TM) (see section 3.3.12 Mounting the ter-

minal holder (TM),  47).

7 Mounting the collection funnel (see section 3.3.14 Mounting the collec-

tion funnel,  59).

8 With the relevant accessories:

Installing the FM/PC filter module and M 1.5 basin holder for filtration

(see section 3.3.16 Installing the FM/PC filter module and M 1.5 basin

holder for filtration,  64).

9 With the relevant accessories:

Connecting the power cable and heat tracing lines (see section 3.3.13

Connecting the power cable and heat tracing lines,  50).

10 Setting up a connection with the IQ S

ENSORNET system (see

section 3.3.18 Setting up a connection with the IQ S

ENSORNET system,

 69).

11 Installing / exchanging the ChemBags, MPV, tubes (see section 5.5

Installing / exchanging the ChemBags, MPV, tubes,  111).

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3.3.4 Installing the housing

The housing of the Alyza IQ can be installed in the following ways:

 On the SM stand mount (see section 3.3.5 Installation on the SM stand

mount,  30).

 On a rail (see section 3.3.6 Installation on a rail,  35).

 On a wall (see section 3.3.7 Installation on a wall,  40).

3.3.5 Installation on the SM stand mount

Proceed as follows to install the housing on the stand mount:

Assembling the

stand mount

In the housing there is a foam insert serving as a transport protec-

tion. Remove the foam insert once the installation of the housing

has been completed.

figure 3-1 Mounting the ground pipes

1 Protective plug

2 Square ground pipe

3 Stand foot

1 Press the plastic protective plugs (1) into both ends of the square

ground pipes (2).

(2 x)

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2 Mount the four height adjustable stand feet (3) on the square ground

pipes (2) using the enclosed M10 hexagon countersunk head screws.

Make sure to use the correct number of plain washers and nuts in the

correct order according to fig. 3-1,  30.

figure 3-2 Connecting the supporting pipes with the ground pipes

1 Protective plug

2 Square ground pipe

3 Square supporting pipe

4 Stabilizing sheet

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3 Press the plastic protective plugs (1) into the upper ends of both square

supporting pipes (3).

4 Using the triangular stabilizing sheets (4), connect both square support-

ing pipes (3) with the preassembled ground pipes (2). For each side, use

six hexagon head screws with large plain washers, spring washers and

locknuts as shown in fig. 3-2,  31. Make sure the two sides mirror each

other after being mounted.

figure 3-3 Connecting the supporting pipes with the cross pipes

1 Square cross pipe

2 Angle bracket

5 Connect both supporting pipes with each other using the two square

cross pipes (1). For each joint, use two angle brackets (2), three hexa-

gon head screws, two large plain washers, three spring washers and

three locknuts.

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Positioning the

stand mount

Make sure that both triangular stabilizing sheets (5) are on the in-

side.

figure 3-4 Mounting the retaining hooks

1 Retaining hook

6 Mount the four retaining hooks (1) on the supporting pipes. For each

hook, use two hexagon head screws, large plain washers, spring wash-

ers and locknuts.

On each side there are three pairs of holes for the upper and lower

retaining hooks. Thus the Alyza IQ can be mounted optimally at

working level. Use the same relative positions for each of the upper

and lower hooks.

7 Place the stand mount at the intended operating location.

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NOTE

Always screw the four stand feet to the ground. If the instrument is mounted in

the open, please make sure that the installation withstands even severe storm.

Mounting the

housing

8 Adjust the four vertically adjustable stand feet in such a way that the

mounting stand is in a straight position (check, for example, with a water

level) to ensure that the liquids can drain off optimally.

figure 3-5 Mounting the housing

1 Upper C-rail

2 Lower C-rail

9 Mount the housing by hooking the C-rails (1 and 2) fixed on its rear side

into the four retaining hooks of the stand mount.

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3.3.6 Installation on a rail

For installation on a rail, the RM rail mount bracket is required.

NOTE

Make sure that the rail is sufficiently stable. If the instrument is mounted in the

open, please make sure that the installation withstands even severe storm.

figure 3-6 Fixing the housing

1Angle bracket

10 Fix the housing on both sides with four brackets (1) so it cannot shift

sideways. For each bracket, use two hexagon head screws, small plain

washers, spring washers and locknuts.

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Assembling the

bracket

Proceed as follows to install the housing on the rail:

figure 3-7 Connecting the supporting pipes with the cross pipes

1 Protective plug

2 Square supporting pipe

3 Square cross pipe

4 Angle bracket

1 Press the plastic protective plugs (1) into the upper ends of both square

supporting pipes (2).

2 Connect both supporting pipes with each other using the two square

cross pipes (3). For each joint, use two angle brackets (4), three short

hexagon head screws, two large plain washers, three spring washers

and three locknuts as shown in fig. 3-7,  36.

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Fixing the rail

mount bracket

figure 3-8 Mounting the retaining hooks

1 Retaining hook

3 Mount the four retaining hooks (1) on the supporting pipes. For each

hook, use two short hexagon head screws, spring washers and lock-

nuts.

There are three pairs of holes each for the upper and lower retaining

hooks. Thus the Alyza IQ can be mounted optimally at working lev-

el. Use the same relative positions for each of the upper and lower

hooks.

4 Place the rail mount bracket in front of the rail in the required position.

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figure 3-9 Mounting the rail mount bracket on the rail

1 Groove bar

2 Clamping strip

3 Long hexagon head screw

4Nut

5 Spring washer

If necessary, insert fur-

ther clamping strips and

washers

Bracket up-

right!

Rail

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Mounting the

housing

5 Attach the rail mount bracket to two suitable horizontal rail pipes with the

aid of the four clamping devices. Each clamping device consists of a

groove bar (1), a terminal strip (2), two long hexagon head screws (3),

two nuts (4) and two spring washers (5). Adjust the clamping devices to

the rail pipes. To compensate for any possible differences of the upper

and lower rail pipe diameters, 2 further terminal strips and 8 washers

(thickness 2 mm) are provided with the construction set. If necessary,

insert these items between the rail and supporting pipes as shown in

fig. 3-9,  38 so that the rail mount bracket is in a vertical position. Note

that both supporting pipes must stand on the ground!

The weight of the Alyza IQ is supported by the rail mount bracket

standing on the ground. The rail prevents the Alyza IQ from falling

over.

figure 3-10 Mounting the housing

1 Upper C-rail

2 Lower C-rail

6 Mount the housing by hooking the C-rails (1 and 2) fixed on its rear side

into the retaining hooks of the rail mount bracket.

7 Make sure that the housing is suspended in a straight position (check,

for example, with a water level) to ensure that the liquids can drain off

optimally in the Alyza IQ.

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3.3.7 Installation on a wall

With the C-rails on its rear side, the Alyza IQ is hooked into the retaining hooks

of the WM wall mounting set.

NOTE

Make sure that the wall is strong enough for the weight of the Alyza IQ and that

the mounting material (screws, plugs, etc.) is suitable for the wall type. If neces-

sary, use other screws and plugs than the ones provided.

Proceed as follows to install the housing on a wall:

figure 3-11 Fixing the housing (on the right: Detailed view)

1 Angle bracket

8 Fix the housing on both sides with four brackets (1) so it cannot shift

sideways. For each bracket, use two short hexagon head screws, small

plain washers, spring washers and locknuts.

1 Drill eight holes as shown in the following figure:

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NOTE

To prevent the instrument from shifting laterally, the fixing screws of the C-rails

have to be outside the retaining hooks on both sides (see fig. 3-13,



42.)

figure 3-12 Drilling dimensions for mounting the WM wall mounting assembly

2 Screw tight the four retaining hooks of the wall mounting set.

3 Mount the housing by hooking the C-rails fixed on its rear side into the

four retaining hooks.

4 Make sure that the housing is suspended in a straight position (check,

for example, with a water level) to ensure that the liquids can drain off

optimally in the Alyza IQ.

540

408

Recommended height above the ground approx. 165 m

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3.3.8 Removing the transport protection of the measuring unit

The transport protection in the housing of the Alyza IQ fixes the measuring unit

in its position with the aid of 3 spacers made of foam.

figure 3-13 Housing of the Alyza IQ in the WM wall mounting assembly

1 Retaining hook

2 Fixing screws of the C-rail

1 Open the outer housing door far enough so the arrestable brake-stay

catches.

2 Open the inner housing door far enough so that it touches the outer

door. Tilt the angular sheet (at the inside of the outer door) over the

upper edge of the inside door.

3 foam transport protectors are in the area between the control unit (1)

and the measuring unit (5).

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3.3.9 Connecting the cables to the control unit ACM

figure 3-14 Transportation safety devices

1 Control unit with connectors

2 Transport protector 1 in the front

3 Transport protector 2 in the front

4 Transport protector 3 in the background

5 Measuring unit

3 Pull the two transport protectors (2, 3) out to the front.

4 Carefully move the transport protector (4) of the measuring unit (5)

upward and then pull it out to the front.

The third transport protector is behind the transport protectors already

removed.

5 Keep all transport protectors.

6 To transport the instrument, always us the transport protectors.

1 Remove the transport protection of the measuring unit (see

section 3.3.8 Removing the transport protection of the measuring unit,

 42).

4 cable ends to be connected to the control unit are on the measuring

unit.

2 Connect the 4 cables to the sockets of the control unit ACM.

Connect the USB cable to the unlabeled USB connector (the connector

labeled "USB0" remains free).

All other plugs will only fit into one socket in the correct direction.

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3.3.10 Mounting the cover plate for the control unit ACM

The cover plate for the control unit ACM covers the control unit ACM and the ca-

bles connected to it.

figure 3-15 Cable of the control unit ACM

1 3-pole connection (mains)

2 4-pole connection (data)

3 USB connection

4 RJ45 connection

1 Remove the transport protection of the measuring unit (see

section 3.3.8 Removing the transport protection of the measuring unit,

 42).

4 cable ends are on the measuring unit.

2 Connect the 4 cables lying on the measuring unit to the control unit (see

section 3.3.9 Connecting the cables to the control unit ACM,  43).

3 Unscrew the 2 knurled-head screws from the top hat rail on the housing

top,

4 Screw the cover plate to the top hat rail with the 2 knurled-head screws.

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3.3.11 Installing the bug screen and condensate drain adapter

Bug screen The bug screen protects the interior of the Alyza IQ against insects coming in

through the air intake opening in the bottom of the housing.

Condensate drain When the Alyza IQ is operated with local temperatures from approx. 25 °C (77

°F) and high moisture, water may condensate within the cooling unit.

The condensate drain adapter runs the condensate that has formed to the out-

side.

Parts of the condensate collect at the housing bottom and at the cooling unit.

This condensation water formed during operation does not adversely affect the

operation of the Alyza IQ.

The condensate drain tube of the Alyza IQ is in the recess of the condensate

drain adapter. Any condensate forming will first fill the recess in the adapter be-

fore overflowing. When enough condensate is present, it closes the condensate

drain tube so that no air humidity can penetrate the housing.

figure 3-16 Cover plate for the control unit ACM

1 Knurled-head screws to mount the cover plate

2 Cover plate for the control unit ACM

3 Cables for power supply

4 Measuring unit

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Installation

figure 3-17 Mounting the bug screen and condensate drain adapter

1 Condensate drain tube (black) at the housing bottom

2 Bug screen

3 Frame with seal

4 Condensate drain adapter with 2 screws

5 Condensate drain tube (transparent)

6 4 knurled-head screws

1 Screw the condensate drain adapter (4) with 2 screws to the frame (3)

so that the tube nozzle of the adapter is on the outside of the frame.

2 Plug the transparent condensate drain tube (5) onto the tube nozzle of

the condensate drain adapter (4) as far as it will go.

3 Insert the bug screen (2) in the frame so that it is kept in position by the

seal of the frame (3).

4 Position the frame (3) with the bug screen (2) and the mounted conden-

sate drain adapter (4) at the underside of the housing. When doing so,

the black condensate drain tube (1) at the underside of the housing

should exactly fit into the recess of the condensate drain adapter (4).

5 Screw the frame (4) to the housing bottom using the 4 knurled-head

screws.

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3.3.12 Mounting the terminal holder (TM)

Operating the Alyza IQ, especially while maintenance activities are being exe-

cuted at the open measuring unit, requires a terminal mounted in the vicinity

(e.g. MIQ/TC 2020 3G or DIQ/S 28X). The terminal should be mounted at the

left-hand side of the Alyza IQ

so that the terminal is always visible while mainte-

nance activities are being executed at the open measuring unit.

The accessory Terminal holder (TM) enables to install a terminal, irrespective of

the mounting of the Alyza IQ (mounting stand SM, rail mounting accessory RM,

wall mounting accessory WM), in the vicinity of the Alyza IQ.

figure 3-18 Mounted bug screen and condensate drain adapter

1Frame

2 Bug screen

3 Condensate drain adapter

4 One of the 4 knurled-head screws

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Preparing the

mounting stand or

rail mounting

accessory for the

terminal holder

The terminal holder is installed at the left-hand side of the Alyza IQ. Thus the ter-

minal is always visible, even with maintenance activities being executed at the

open housing of the Alyza IQ.

figure 3-19 Installed terminal holder TM (view of the rear side)

Example: Installation on an SM stand mount

1 Upper bracket

2 Upper angle bracket

3 Bore holes for the canopy

4 Mounting sheet

5 Lower bracket

6 Lower angle bracket

1 Position the mounting stand with the Alyza IQ mounted. The rear of the

mounting stand has to be freely accessible.

2 Insert the long side of an angle bracket (2) between the housing and

mounting stand, above the upper C-rail and past the mounting stand

until the short side of the angle bracket touches the mounting stand.

Keep the angle bracket in this position.

3 Position a bracket (1) on the mounting stand and insert the ends of the

bracket in the bore holes of the angle bracket.

Fix the angle bracket (2) to the bracket loosely with 2 nuts.

4 Insert the long side of the second angle bracket (6) between the housing

and mounting stand, under the lower C-rail and past the mounting stand

until the short side of the angle bracket touches the mounting stand.

Keep the angle bracket in this position.

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Installation on a

mounting stand or

rail mounting

accessory

Installation on a

wall

Installing the

canopy and

terminal

5 Position the second bracket (5) on the mounting stand and insert the

ends of the bracket in the bore holes of the angle bracket.

Fix the angle bracket (6) to the bracket loosely with 2 nuts.

1 Screw the mounting sheet (4) to both brackets (2, 6) with 4 hexagon

socket screws and nuts.

2 On the rear side of the mounting sheet (4), plug four screws into the drill-

ings (3) far enough so that they can be seen on the other side.

3 Hold the mounting sheet (4) in the desired height and tighten the 4 nuts

at the brackets (1, 3) until the terminal holder is safely mounted.

1 On the rear side of the mounting sheet (4), plug four screws into the drill-

ings (3) far enough so that they can be seen on the other side.

2 Screw the mounting sheet (4) to the wall.

1 Tighten the 4 screws to fix the canopy to the mounting sheet (4).

At the bottom of the mounting sheet, keep some space free for the

cabling of the power supply.

2 Mount an IQ module (e.g. MIQ/JB, DIQ/S 28X, ...) to the canopy (see

IQ S

ENSORNET system operating manual).

3 Dock a terminal onto the MIQ/JB as necessary.

4 Connect the IQ S

ENSORNET cable of the Alyza IQ to the IQ module (see

IQ S

ENSORNET system operating manual).

5 If necessary, connect the IQ module with a second IQ S

ENSORNET

cable to integrate the Alyza IQ into an existing IQ S

ENSORNET (see

IQ S

ENSORNET system operating manual).

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3.3.13 Connecting the power cable and heat tracing lines

The intake lines and return lines are inserted into the housing through dust-proof

lead-in ducts. The cable glands with seals are at the bottom of the housing.

figure 3-20 Mounted terminal holder TM with canopy, MIQ/JB and MIQ/TC 2020 3G

For all work done with the housing open:

 If the Alyza IQ was already in operation:

Before opening the measuring unit, start the maintenance routine

at the terminal.

 Note the environmental conditions (see section 3.3.1 Require-

ments of the measurement location,  27).

 Open the outer housing door far enough so the arrestable brake-

stay (on the lower right side of the housing) catches.

 Open the inner housing door far enough so that it touches the

outer door. Tilt the angular sheet (at the inside of the outer door)

over the upper edge of the inside door.

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figure 3-21 Cable glands for intake lines and return lines

(view from inside and from below)

1 Cable gland (front) for return line 2 (in the example, sealed with

yellow plug)

2 Cable gland (2nd from the front) for return line 1

(in the example: waste from the measuring unit and sample overflow

from the overflow vessels)

3 Cable gland (3rd from the front) for intake line 1 (channel 1)

4 Cable gland (rear) for intake line 2 (channel 2)

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Opening the power

box

(to connect the

heat tracing)

In the delivery condition, the power cable (2 m length) is connected to the termi-

nals in the power supply box of the Alyza IQ and is run outside through the hous-

ing bottom of the Alyza IQ.

The power cable is delivered without plug. It is designed to be directly connected

to the power supply. Note the safety requirements (see section 3.3.2 Safety re-

quirements of the electrical installation,  27).

If a heat tracing is connected, a fault current protection switch (ground fault cir-

cuit interrupter) and a fuse must be installed additionally.

To connect to the power supply box a heat tracing or power cable, the mounting

plate has to be removed.

WARNING

If the power supply is connected incorrectly, there may be

danger to life from electric shock.

Pay attention to the following points during installation:

 The power supply box may only be connected to the

power supply by a qualified electrician.

 The power supply box may only be connected to the

power supply when it is not carrying any voltage.

 The power supply must fulfill the specifications given

on the nameplate and in chapter 8 Technical data,

 170.

 The power supply of the heat tracing must fulfill the

specifications given on the heat tracing (240 VAC or 120

VAC).

 To operate a heat tracing line, a fault current protection

switch (ground fault circuit interrupter) has to be in-

stalled.

 The power cable must meet the requirements according

to the technical data (see section 8.4,  175).

If necessary, you can install a longer power cable in the power sup-

ply box (see section 3.3.13 Connecting the power cable and heat

tracing lines,  50). When doing so, note the requirements of the

power cable (see section 8.4 Electrical data,  175).

Install an additional external power interrupter to be able to switch

the power supply box potential free from outside.

1 Open the outer housing door far enough so the arrestable brake-stay

(on the lower right side of the housing) catches.

2 Open the inner housing door far enough so that it touches the outer

door. Tilt the angular sheet (at the inside of the outer door) over the

upper edge of the inside door.

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Switching off the

power supply

Removing the

mounting plate

3 Switch off all filtration pumps (STOP).

4 Switch off the 24 V power supply.

5 Switch the power line potential free.

6 Unscrew the 2 fixing screws of the cover (on the top right side in the

housing) and remove the cover of the ACM.

If the filtration pumps have already been in operation, sample liquid

may escape when the tubes and liquid lines are unscrewed. Provide

a collecting container in such a case.

7 Remove the cable connections and the connections of the tubes and liq-

uid lines from the mounting plate:

 Unplug the 2 cables from the switch box.

 Unscrew the sample tubes from the overflow vessels.

 Unplug the blue intake lines of the filtration units.

 Pull the sample overflow tubes out of the collection funnel.

8 Remove the mounting plate:

 Unscrew the 2 fixing nuts (3) at the bottom of the mounting plate.

 Unscrew the 2 fixing screws (2) at the upper edge of the mounting

plate.

Secure the mounting plate against falling out.

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Opening the power

box

figure 3-22 Mounting plate

1 Mounting plate

2 Fixing screw at the upper edge

3 Fixing nuts at the lower edge

4 Switch box with 24 VDC switch

9 Remove the mounting plate:

 Lift the mounting plate upward over the threaded pins.

 Tilt the upper edge of the mounting plate somewhat backwards and

remove the mounting plate from the housing downwards.

 Place the mounting plate with the rear side down on a protected sur-

face (e.g. with cardboard).

10 Unscrew all nuts with safety disks (10 pieces) from the power supply

box and remove the lid of the power supply box.

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figure 3-23 Connections of the power supply box

1 Power supply module

2 Ventilator

3 Power supply filter

4 Connecting terminals for the heat tracing lines

4 - 7: yellow/green (protective earth conductor)

8 - 11: gray

12 - 15: blue

5 Power supply of the heat tracing lines

6 Overvoltage protection

7 Power line

8 Cable gland for heat tracing of intake line (channel 2)

9 Cable gland for heat tracing of intake line (channel 1)

10 Cable gland for heat tracing of return line 2 (sample return)

11 Cable gland for heat tracing of return line 1 (chemicals return)

11 Unscrew the nuts of the cable glands for the cables of the heat tracing

at the underside of the power supply box.

8 9

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Connecting the

intake lines and

return lines

12 On the underside of the power supply box, remove the protective plugs

from those cable glands you need to connect the cables.

Unused cable glands have to be closed with the supplied black plugs.

13 Only for variants with 2 sample channels:

Run the intake line for channel 2 through the big rear cable gland (from

the rear housing panel) at the housing bottom.

– The sleeve tube should protrude into the interior approx. 1 cm to pro-

tect the intake line from being damaged (see figure 3-25).

– Fix the sleeve tube with the cable gland.

14 Run the intake line for channel 1 through the second big cable gland

(from the rear housing panel) at the housing bottom.

– The sleeve tube should protrude into the interior approx. 1 cm to pro-

tect the intake line from being damaged (see figure 3-25).

– Fix the sleeve tube with the cable gland.

15 Run the return line for waste from the measuring unit through the next

big cable gland at the housing bottom.

– The sleeve tube should end flush with the tube inside the housing so

that a collection funnel can be installed.

– Fix the sleeve tube with the cable gland.

The liquid in the return line must be able to flow freely (steady

slope). Do not immerse the end of the return line in water.

16 To guide the sample return into the basin and dispose of the chemicals

waste separately:

Install the collection funnel (WF Set) (see section 3.3.15 Mounting the

WF Set (collection funnel for sample overflow),  62).

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Connecting the

cable with the

power supply box

NOTE

No other consumers, with the exception of those described in this operating

manual, may be connected to the power supply box.

Line branches in the supply lines are not permitted.

17 To guide the sample return into the basin and dispose of the chemicals

waste separately:

Run the return line for sample through the front big cable gland at the

housing bottom.

– The sleeve tube should end flush with the tube inside the housing so

that a collection funnel can be installed.

– Fix the sleeve tube with the cable gland.

– Position a suitable collecting container for the chemical waste under

the Alyza IQ and secure it.

Empty the collecting container regularly.

– Put the return line for the chemical waste into the collecting container

and secure it.

– The chemical waste in the return line must be able to flow freely

(steady slope). The end of the return line must not be immersed in

water or the liquid chemicals collected.

figure 3-24 Connections at the housing bottom (from below)

Example: 2 sample channels, 1 drain

1IQSENSORNET cable

2 Power line

3 Variants with 2 sample channels:

Gland for sleeve tube of intake line (channel 2)

4 Gland for sleeve tube of intake line (channel 1)

5 Gland for sleeve tube of return line 1

6 Gland for sleeve tube of return line 2

(in the example it is unused and sealed with a yellow protective plug)

Unused cable glands of the basic instrument have to be closed with

the yellow protective plugs supplied.

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Closing the power

supply box

18 Slide the nut of the cable gland (of the power supply box) over the cable

of the heat tracing.

19 First run the wire with the greatest diameter (protective earth conductor,

yellow/green) through the sealing of the cable gland.

20 Then run the two thinner wires (black) of the heat tracing through the

sealing of the cable gland.

21 Push the entire cable with the cable sheath through the sealing until the

cable is visible in the power supply box.

22 Insert the cables of the heat tracing lines for the intake lines and return

lines through the cable glands on the underside.

23 Seal unused cable glands with the black plugs supplied.

Thus the power supply box is closed and protected against dust and

moisture.

24 Screw tight the nut of the cable gland (with a torque of 7.5 Nm).

25 Insert all heat tracing cables into the power supply box.

26 Insert the heat tracing wires into the respective terminals so that each

terminal catches.

Green/yellow cable: any green/yellow terminal

1st black cable: any blue terminal

2nd black cable: any gray terminal

The heating bands of the heat tracing must start within the housing

of the Alyza IQ to keep the lines frost free. At the outlet of the return

line, the heat tracing must protrude 20 to 50 mm from the sleeve

tube. If necessary, shift the heat tracing in the sleeve tube accord-

ingly.

27 If necessary, replace the power cable with another power cable (e.g. a

longer one).

28 Check whether all connections are made correctly.

29 Screw tight the nut of the cable gland of the power cable (with a torque

of 2.5 Nm).

Make sure that no cable touches the power supply filter.

30 Remount the lid of the power supply box and screw tight all nuts with

safety disks as far as they will go (0.4 Nm).

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Reinserting the

mounting plate

3.3.14 Mounting the collection funnel

The liquid waste from the measuring unit and sample overflow from the overflow

vessels have to be transported out of the housing of the Alyza IQ.

The collection funnel collects the liquids from up to 3 sources (waste tube from

the measuring unit, sample overflow tube from overflow vessel 1 and sample

overflow tube from overflow vessel 2 ) and transports them out of the housing

via a common return line.

To keep moisture and damp air from penetrating the housing of the Alyza IQ, the

collection funnel is closed with a rubber cover. Unused openings of the rubber

cover are closed with plugs.

The collection funnel is installed in the housing of the Alyza IQ at the

second cable gland from the front.

31 Insert the mounting plate:

 Plug the mounting plate on the threaded pins inside the housing.

 Tighten the 2 fixing screws (2) at the upper edge of the mounting

plate.

 Tighten the 2 fixing nuts (3) at the bottom of the mounting plate.

32 Re-establish the cable connections and the connection of the tubes and

liquid lines.

 Connect the 2 cables to the switch box.

 Mount the collection funnel:

– the collection funnel for the chemical waste and, if necessary,

– the second collection funnel for the sample overflow from the

overflow vessels.

 Plug the intake lines onto the connectors of the filtration pumps.

 Screw the sample tubes to the connectors of the overflow vessels.

 Re-insert the sample overflow tubes into the collection funnel for the

sample overflow or into the joint collection funnel for chemical waste

and sample overflow.

 Connect the liquid lines (see section 3.3.17 Connecting the tubes

and liquid lines,  66).

 Insert the sample return tubes of the overflow vessels in the collec-

tion funnels:

33 Reinsert the cover and fix it with the 2 fixing nuts.

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Scope of delivery

of the collection

funnel of the

Alyza IQ

 Collection funnel

 Rubber cover for collection funnel

 3 plugs for the openings of the rubber cover

 2 sample overflow tubes (from the overflow vessel to the collection funnel)

 Cable ties to fasten the collection funnel to the fixing bracket.

Preparatory

activities

When operating heat tracing lines for the return lines:

Install the heat tracing first (see chapter section 3.3.13 Connecting the power

cable and heat tracing lines,  50).

It is possible to dispose of the sample overflow and chemical waste

from the measuring unit separately by using a second collection fun-

nel (accessory WF Set). The second collection funnel is installed at

the front cable gland. There the sample return is transported out of

the housing separately (see section 3.3.15 Mounting the WF Set

(collection funnel for sample overflow),  62).

Install the collection funnel together with the heat tracing lines. If the

mounting plate is removed, there is more room to install the collec-

tion funnel.

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Mounting

figure 3-25 Collection funnel for the common discharging of all liquids

(lateral view)

1 Heating line of the heat tracing

(attached to the fixing bracket with a cable tie)

2 Waste tube of the measuring unit

3 Sample overflow tube from the overflow vessel

4 Rubber cover of the collection funnel

(close any unused openings with plugs)

5 Cable ties

6 Fixing angle bracket

7 Collection funnel

8 Cable gland (2nd from the front)

9 Cable gland (in the front)

1 Insert the return line into the housing from the outside through the cable

gland (8). Inside, the end of the waste tube should be flush with the

cable gland (8).

Details on how to install the return lines and heat tracing lines:

see section 3.3.13 Connecting the power cable and heat tracing lines,

 50

2 Fix the heat tracing (1) of the return line to the fixing angle bracket

behind the cable gland with the cable tie (scope of delivery: collection

funnel).

3 Insert the collection funnel (7) in the opening of the cable gland (8) in

the housing:

 the beveled side of the collection funnel (7) points to the heat tracing

(1)

 the drain of the collection funnel flows into the return line

4 Press the collection funnel down till it sits tight.

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NOTE

Make sure that the liquids in the collection funnel can drain off freely. A blocked

collection funnel can cause the liquids to overflow into the housing of the

Alyza IQ . Liquids can cause damage to the housing and electrical components.

If the liquids are disposed of via a second collection funnel available as an ac-

cessory (WF Set) (see section 3.3.15 Mounting the WF Set (collection funnel for

sample overflow),  62).

3.3.15 Mounting the WF Set (collection funnel for sample overflow)

To transport from the housing the liquid chemical waste from the measuring unit

separately from the sample overflow, install a second collection funnel (acces-

sory, WF Set). Via the second collection funnel, only the sample overflow from

the overflow vessels is transported out of the housing.

To collect and dispose separately of the chemical waste from the measuring

unit, a suitable (chemical resistant, winterproof) collecting container is required

additionally.

Scope of delivery

of the WF Set

 Collection funnel

 Rubber cover for collection funnel

 3 plugs for the 3 openings of the rubber cover

 Sample overflow tube, transparent

 Fixing angle bracket for the heating line at the foremost cable gland with

cheese-head screws (M3x8)

 Cable ties to fasten the collection funnel to the fixing bracket

Mounting

5 Pull the rubber cover (4) of the collection funnel over the edges of the

collection funnel.

The opening of the collection funnel has to be closed tightly.

6 Put the waste tube (2) of the measuring unit into the collection funnel

through the small opening of the rubber cover (4).

The liquid in the waste tube must be able to flow freely (steady slope,

no kinking, no damage).

7 If all liquids are disposed of through a common return line:

Put the sample overflow tubes (3) of the overflow vessels into the col-

lection funnel through the big openings of the rubber cover (4).

8 Close any unused openings of the rubber cover (4) with the plugs pro-

vided so that the housing interior is protected against humidity.

1 Fix the fixing angle bracket at the front cable gland.

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NOTE

Make sure that the liquids in the collection funnel can drain off freely. A blocked

collection funnel can cause the liquids to overflow into the housing of the

Alyza IQ . Liquids can cause damage to the housing and electrical components.

2 Insert the sleeve tube of the return line for the sample overflow into the

housing from the outside through the cable gland (9). Inside, the end of

the return tube should be flush with the cable gland (9).

Details on the how to install the sleeve tubes and heat tracing lines:

see section 3.3.13 Connecting the power cable and heat tracing lines,

 50

3 Insert the collection funnel (7) in the opening of the cable gland (9) in

the housing:

 the beveled side of the collection funnel (7) points to the heat tracing

(1)

 the drain of the collection funnel flows into the return line for the sam-

ple return.

4 Pull off the short sample overflow tubes from the overflow vessels.

5 Cut off pieces of the transparent sample overflow tube included in the

scope of delivery long enough that the new sample overflow tubes go

from the overflow vessels to the foremost collection funnel.

6 Plug the fitted sample overflow tubes to the overflow vessels.

7 Pull the rubber cover (4) of the collection funnel over the edges of the

collection funnel.

The opening of the collection funnel should be closed tightly.

8 Put the sample overflow tubes of the overflow vessels into the collection

funnel through the big openings of the rubber cover.

9 Close any unused openings of the rubber cover with the plugs provided

so that the housing is protected from humidity.

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3.3.16 Installing the FM/PC filter module and M 1.5 basin holder for filtra-

tion

Installation

instructions

Heed the following notes when installing the filter module:

 Mount the filter module so that the plate is in a position vertical to the flow

direction.

figure 3-26 Collection funnel for the separate discharge of all liquids

1 Heating line of the heat tracing

(attached to the fixing bracket with a cable tie)

2 Waste tube of the measuring unit

3 Sample overflow tube from the overflow vessel

4 Plug for the rubber cover

5 Rubber cover of the collection funnel

(seal unused openings of the rubber cover with plugs)

6 Cable gland (2nd from the front) with collection funnel for chemical

waste

7 Fixing angle bracket

8 Collection funnel

9 Cable gland (front) with collection funnel for sample overflow

10 Position a suitable collecting container (chemical resistant, winterproof)

under the Alyza IQ to collect the chemical waste from the measuring

unit.

11 Fasten the collecting container.

12 Insert the return line of the cable gland (6) into the collecting container.

13 Fasten the return line.

14 Empty the collecting container regularly.

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 The filter module (FM/PC) and the slide must be completely submersed

(max. 40 cm).

Take changing water levels into account when mounting the filter membrane

module.

 The lower edge of the filter module must be mounted with at least 10 cm dis-

tance to the bottom.

NOTE

Dirt particles and contamination in the sample tube can block the valves of the

measuring unit.

During the cleaning activities, make sure that no dirt particles get into the open

tube ends or the connector of the filter module.

Protect the open tubes and connectors during the cleaning activities, e.g. with

blind plugs.

Installation

In special cases (e.g. in a channel) it is better to mount the FM/PC

filter module in a horizontal position in the flow direction.

An adapter for horizontal mounting is available as an accessory.

1 Mount the rail of the basin holder for filtration in the basin.

If necessary, extend the rail with the M-EXT 1.5 extension accessory.

figure 3-27 Sample filtration device (installed)

1 Chain (scope of delivery: basin holder for filtration M 1.5)

2 Guide rail (scope of delivery: basin holder for filtration M 1.5)

3 Height adjustable slide (scope of delivery: Suction line)

4 Intake line (scope of delivery: Suction line)

5 Sleeve tube (scope of delivery: Suction line)

6 Filter module (FM/PC) with filter plate (Filter/PC)

2 Mount the filter module on the slide of the basin holder for filtration.

3 Connect the intake line to the filter module.

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3.3.17 Connecting the tubes and liquid lines

After connecting the intake lines to the housing, connect the following tubes and

liquid lines:

 the blue intake lines to the filtration pumps

 the sample feed tubes of the pumps to the overflow vessels

 the transparent sample overflow tubes of the overflow vessels to the collec-

tion funnel for the sample overflow

 the transparent sample tubes of the measuring unit to the overflow vessels

 the black waste tube of the measuring unit to the collection funnel for chem-

ical waste or to the collection funnel for the sample overflow.

fig. 3-28,  67 shows the housing with the completely connected lines including

the accessories and all options:

4 Insert the slide of the filter module in the rail and lower it into the basin

with the aid of the chain. Fix the end of the chain outside the basin.

5 Run the intake line to the Alyza IQ. Fix the sleeve tube with cable ties

at some suitable places as necessary. How to connect the intake line to

the Alyza IQ, (see section 3.3.17 Connecting the tubes and liquid lines,

 66).

For all work done with the housing open:

 If the Alyza IQ was already in operation:

Before opening the doors, start the maintenance routine at the

terminal.

 Note the environmental conditions (see fig. 3.3.1,  27).

 Open the outer housing door far enough so the arrestable brake-

stay catches.

 Open the inner housing door far enough so that it touches the

outer door. Tilt the angular sheet (at the inside of the outer door)

over the upper edge of the inside door.

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Proceed as follows to connect each line:

figure 3-28 Completely connected lines

1 Channel 1: Filtration pump

2 Channel 1: Sample feed tube (filtration pump - overflow vessel)

3 Channel 1: Intake line

4 Channel 1: Overflow vessel

5 Channel 1: Sample overflow tube (overflow vessel - collection funnel)

6 Channel 1: Sample tube (overflow vessel - measuring unit)

7 Channel 2: Overflow vessel

8 Channel 2: Intake line

All parts for channel 1 described here also exist for channel 2 (red

labeling)

1 Connect the intake line 1 to the filtration pump 1.

Before opening:

ES: Antes de abrir:

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2 Connect the intake line 2 to the filtration pump 2.

3 Connect the sample tubes to the overflow vessels.

The sample tube (channel 2) for overflow vessel 2 has a red labeling.

figure 3-29 Opening for the sample tubes

1 Grooves for the sample tubes through the insulation of the measuring

unit

2 Connection of sample tube 1 (channel 1) to overflow vessel 1

3 Connection of sample tube 2 (channel 2) to overflow vessel 2

4 Carefully press the sample tubes into the grooves (1) left of the measur-

ing unit so that the sample tubes are not bent even when the front cover

is closed.

5 Install the collection funnel for the chemical waste.

6 If necessary, install the collection funnel for the sample overflow.

7 Insert the waste tube of the measuring unit into the collection funnel for

the chemical waste of the measuring unit.

The liquid in the waste tube must be able to flow freely (steady slope,

no kinking, no damage).

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3.3.18 Setting up a connection with the IQ SENSORNET system

In the delivery condition the IQ S

ENSORNET cable (2 m long) is connected to the

ACM control unit of the Alyza IQ and is run to the outside through the bottom

plate.

Connect the IQ S

ENSORNET cable of the Alyza IQ to an IQ SENSORNET module

mounted in the vicinity.

If the Alyza IQ is operated in an IQ S

ENSORNET configured minimally, we recom-

mend that you set the terminator switch in the MIQ module (e.g. MIQ/JB) to ON

(see IQ S

ENSORNET system operating manual).

Example of a simple IQ S

ENSORNET system:

 1 TerminalController ( e.g. MIQ/TC 2020 3G),

 1 MIQ module (e.g. MIQ/JB),

 1 sensor (e.g. Alyza IQ)

8 Insert the sample overflow tubes from the overflow vessels into the col-

lection funnel for the sample overflow.

 Collection funnel at the foremost cable gland:

(with separate disposal of the chemical waste from the measuring

unit)

 Collection funnel at the second cable gland:

(with joint disposal of the chemical waste from the measuring unit

and of the sample overflow into the container)

The liquids in the return lines have to be able to drain off freely

(steady slope). Do not immerse the end of the line in water.

9 Check whether the pre-installed sample feed tubes are correctly con-

nected to the filtration pumps and overflow vessels

For detailed information on how to connect the IQ S

ENSORNET cable

to an IQ S

ENSORNET module mounted in the vicinity please refer to

the IQ S

ENSORNET system operating manual, paragraph "Distribut-

ed mounting“.

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3.3.19 Taking the filtration pumps into operation

1 Make sure that all lines (intake lines, return lines) and tubes (sample

feed tube, sample overflow tube, sample tube, waste tube) in the

Alyza IQ are connected correctly.

2 Set the 24 VDC switch on the mounting plate to ON (I pressed upward).

3 Use the rotary knob to set the pump capacity to 80 ... 100 %.

figure 3-30 Filtration pump

1 Pump capacity in %

2 Start key

3 Stop key

4 Switch on the filtration pump with the Start key.

5 Wait until sample liquid runs from the overflow vessel into the sample

overflow tube. Depending on the length of the intake line, this may take

some minutes.

If no sample runs into the overflow vessel, proceed in one of the fol-

lowing ways.

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figure 3-31 Filtration pump

1 Vent valve

2 Vent connection

 Open and then close again the ventilation valve (1).

 Fill the intake line with water manually:

– Switch off the filtration pump.

– Pull the intake line off the filtration pump.

– Fill the intake line with water (e.g. using a wash bottle).

– Connect the intake line to the pump again and secure it.

– Switch the filtration pump on again.

 Increase the suction power manually:

– At the vent connection (2), connect a syringe with a tube:

– Open the vent valve (1).

– Create an additional negative pressure with the syringe.

– Close the vent valve (1).

– Repeat the procedure until sample runs into the overflow vessel.

– Remove the tube and syringe from the vent connection (2).

6 As soon as a sufficient amount of sample is flowing, reduce the pump

capacity as far as possible (to approx. 2 - 10 %) with the rotary knob.

Adjust the pump capacity so that the sample overflow can drain off

through the sample overflow tube into the collection funnel for the

sample overflow.

No sample may come into the housing through the vent valve (1).

7 Alyza IQ variant with 2 sample channels:

Take the second filtration pump into operation.

8 Let the sample feed run continuously, until the sample flow is stable and

no more air is in the lines.

9 Close the doors of the housing.

10 If necessary, put the IQ S

ENSORNET system into operation (see the rel-

evant IQ S

ENSORNET system operating manual).

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3.4 Initial commissioning

For initial commissioning, proceed as follows:

3.4.1 Checklist for commissioning

With the aid of the following questions, check whether the Alyza IQ is ready to

start operating:

 Is the housing of the Alyza IQ installed safely

(see section 3.3.4 Installing the housing,  30) ?

 Are all lines (intake lines, return lines) and tubes for inlet and outlet of the

sample installed section 3.3.17 Connecting the tubes and liquid lines,  66) ?

 Are the heat tracing lines installed to protect the intake and return lines

against frost (see section 3.3.13 Connecting the power cable and heat trac-

ing lines,  50) ?

 Is the Alyza IQ safely connected to the power supply?

Is there an external power disconnector?

 Are the filtration pumps ready for operation and is the pump capacity adjusted

(see section 3.3.19 Taking the filtration pumps into operation,  70) ?

For all work done with the housing open:

 If the Alyza IQ was already in operation:

Before opening the measuring unit, start the maintenance routine

at the terminal.

 Note the environmental conditions (see fig. 3.3.1,  27).

 Open the outer housing door far enough so the arrestable brake-

stay catches.

 Open the inner housing door far enough so that it touches the

outer door. Tilt the angular sheet (at the inside of the outer door)

over the upper edge of the inside door.

1 Check all connections and tubes connecting the Alyza IQ with the out-

side world (see section 3.4.1 Checklist for commissioning,  72)

2 Install the replacement parts required in the Alyza IQ with the aid of the

install wizard (section 3.4.3 Carrying out the install wizard,  74).

3 Complete the initial commissioning at the terminal of the IQ S

ENSORNET

(see section 3.4.4 Preparing the Alyza IQ for measuring,  76)

4 In an IQ S

ENSORNET system without automatic air pressure compensa-

tion:

Set the local altitude at the IQ S

ENSORNET in the menu <S> / Settings /

System settings / Location altitude/Air pressure (see IQ S

ENSORNET

system operating manual).

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 Is sample present in the overflow vessels?

 Does the sample in the overflow vessels meet the quality requirements (see

section 8.2 Application conditions,  171)?

 Is the Alyza IQ connected to the IQ S

ENSORNET

(MIQ/JB + Terminal/Controller, is the Alyza IQ displayed as a sensor on the

IQ S

ENSORNET terminal,

see section 3.3.18 Setting up a connection with the IQ S

ENSORNET system,

 69) ?

 Was the correct altitude or correct air pressure entered in the IQ S

ENSORNET

system

(menu <S> / Settings / System settings / Location altitude/Air pressure, see

IQ S

ENSORNET system operating manual) ?

 If a collecting container for separate disposal of the chemical waste is

installed:

Are the collecting container and return line fastened?

Is regular emptying secured?

3.4.2 Stick the label (national language)

onto the locking device of the MultiPort valve

figure 3-32 Stick the label (national language) onto the locking device of the MultiPort

valve

ES: Antes de abrir: vaciar el sistema!

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3.4.3 Carrying out the install wizard

When all requirements for the commissioning are met, start the install wizard to

install the replacement parts required.

As soon as the controller of the IQ S

ENSORNET identifies the Alyza IQ, the chan-

nels of the Alyza IQ are displayed in the measured value display of the

IQ S

ENSORNET.

Before the first measurement, bars are displayed.

For the commissioning you have to know how to:

 Open the measuring unit,

 Install the MultiPort valve (MPV),

 Install the ChemBag,

 Install the tube at the MultiPort valve (MPV)

(if the functions Backgr. corr.(opt) or 2-point calibration are con-

figured)

 Close the measuring unit.

Details on the individual steps are given in the present operating

manual of your Alyza IQ. When the Alyza menu is opened, the install

wizard starts automatically until a first valid configuration of the

Alyza IQ is available.

The install wizard does no longer automatically start once the parts

required have been installed.

figure 3-33 Measured value display of the Alyza IQ (example: 2-channel instrument)

1 Highlight the measured value display of the Alyza IQ.

2 Open the Alyza menu with <C>.

On initial commissioning, the install wizard of the Alyza IQ opens auto-

matically.

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3 Put on your personal protective equipment (PPE) and chemical resis-

tant gloves (see section 2.4 Personal protective equipment (PPE),

 24).

WARNING

Dangerous chemicals.

Improper use of chemicals can cause damage to your

health.

Heed the following rules:

 Read the labels of the ChemBags and follow the safety

instructions

 Wear protective equipment (lab coat, protective gog-

gles, chemical resistant protective gloves, safety

shoes)

4 Open the outer housing door far enough so the arrestable brake-stay

(on the lower right side of the housing) catches.

5 Open the inner housing door far enough so that it touches the outer

door. Tilt the angular sheet (at the inside of the outer door) over the

upper edge of the inside door.

6 Remove the front cover of the measuring unit.

 Using one hand, grip the handle at the upper edge of the front cover

of the measuring unit.

 Pull the front cover of the measuring unit somewhat to the front

against the resistance.

 Carefully take the front cover out to the front and put it in a clean

place.

7 Start the install wizard.

8 Follow the instructions of the install wizard.

 Step 1:

Configure all settings requiring the installation of replacement parts

(ChemBags, tubes). From them, the install wizard makes a list of the

replacement parts required.

 Step 2:

Install the replacement parts required (MultiPort valve, tube, Chem-

Bags).

Details on installing the replacement parts (see section 5.5 Installing

/ exchanging the ChemBags, MPV, tubes,  111).

For each of the functions 2-point calibration and background correc-

tion (optimized), an extra tube has to be installed.

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3.4.4 Preparing the Alyza IQ for measuring

After completing the install wizard, carry out some further steps at the terminal

of the IQ S

ENSORNET.

9 Re-insert the front cover of the measuring unit.

10 Close the housing of the Alyza IQ.

11 Prepare the Alyza IQ for measuring (see section 3.4.4 Preparing the

Alyza IQ for measuring,  76)

1 Open the Alyza menu / tab Maintenance / Manual maintenance.

2 Carry out the function Prepare measuring

(Alyza menu / tab Maintenance / Manual maintenance / Prepare mea-

suring).

3 Switch to the menu Maintenance / Manual maintenance.

figure 3-34 Tab Maintenance / Manual maintenance

4 Carry out the function Fill the system.

(Alyza menu / tab Maintenance / Manual maintenance / Fill the system)

The tubes and MultiPort valve (MPV) are filled.

When the function has been successfully completed, the message Fill-

ing successfully completed. is displayed.

5 Quit the menu Manual maintenance with <ESC>.

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figure 3-35 Tab Maintenance

6 Carry out the function START Alyza IQ.

Measurement is started and the measured value is displayed in the

measured value display after approx. 5 ... 7 minutes.

Wait for the temperature adjustment to be completed.

7 If necessary, switch off the maintenance condition.

(Alyza menu, tab Maintenance / Switch on/off the maintenance condi-

tion).

8 Check the settings for measurements (see section 4.3.1 IQ S

ENSORNET

Settings of sensors and diff. sensors,  80)

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4 Measurement / Operation

4.1 General operating principles

Contrary to the general operating principles of the IQ SENSORNET, the Alyza IQ

is operated via a separate menu (Alyza menu) at the IQ S

ENSORNET terminal.

Opening the Alyza

In the Alyza menu,

 you have access to information on the current operating condition

(tabs Status, Remaining, History, Info)

 you can start the calibrating and service functions (tab Maintenance), e.g.:

– stop or start the Alyza IQ

– Activate or terminate the maintenance condition

– Start calibration

– Start the service functions

1 In the measured value display, use < > to select the Alyza IQ.

2 Using the <C> key, switch to the Alyza menu.

The Alyza menu opens with the tab Status. The tab Status provides

information on the current operating status of the Alyza IQ.

figure 4-1 Alyza menu tab Status

1 Tabs form the first menu level in the Alyza menu

– To switch between the tabs, use the arrow keys < >< >. Informa-

tion, submenus and functions of the selected tabs are displayed.

– To switch between the displayed information, submenus and func-

tions within a tab, use the arrow keys < >< >. Open the sub-

menus with <OK>.

2 Arrows on the side of the screen

More tabs can be accessed with the arrow keys < >< >. With the

arrow keys < >< > you can access further information within a tab.

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4.2 Measurement operation

4.2.1 Determination of measured values

The Alyza IQ determines the measured values with a chemical analyzing proce-

dure. The measured values are determined at intervals specified in the settings

(see section 4.3 Settings for the Alyza IQ,  80).

If the intervals overlap with the specified start times and intervals of other func-

tions (Autom.cleaning or Autom.calibration), the functions are carried out ac-

cording to their priority (see section 4.3.2 Priority,  84).

4.2.2 Starting the measuring operation

The Alyza IQ starts measuring only when the START Alyza IQ function is start-

ed.

When the Alyza IQ is started (function START Alyza IQ), it checks automatically

whether the requirements for measurement are met, e.g.:

 Plausible pressure and volume conditions in the tubes

 Temperature control of the various areas of the Alyza IQ

The regulating of the temperature may take up to 30 minutes.

More details: See section 3.4.4 Preparing the Alyza IQ for measuring,  76.

4.2.3 Measuring

The measured values are displayed in the measured value display on the termi-

nal.

The current Alyza IQ measured values are also displayed in the Alyza menu, tab

Status. More detailed information on the current status is available here, (e.g.

next measurement, next cleaning, next calibration).

figure 4-2 Measured value display of the Alyza IQ

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4.3 Settings for the Alyza IQ

For the Alyza IQ, the settings are done like that for the other IQ SENSORNET sen-

sors in the menu Settings of sensors and diff. sensors (IQ S

ENSORNET mea-

sured value display / <S> / Settings of sensors and diff. sensors).

Start the measuring operation so the measured values of the Alyza IQ can be

displayed (see section 4.2.2 Starting the measuring operation,  79).

4.3.1 IQ S

ENSORNET Settings of sensors and diff. sensors

figure 4-3 Alyza menu tab Status

During an automatic cleaning or calibrating procedure, the display

shows CLEAN or CAL instead of a measured value. Linked outputs

are frozen.

Measured value

display

Function

CLEAN Autom.cleaning is being carried out.

CAL Autom.calibration is being carried out.

1Use the <M> key to switch to the measured value display as necessary.

2Using <S>, switch from the measured value display to the main menu

of the sensor settings.

3 Then navigate to the menu Settings of sensors and diff. sensors.

The exact procedure is given in the IQ S

ENSORNET system operating

manual.

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Setting table Setting menus with the possible values to be set. Default values are marked in

bold.

4 Adjust the setting values as necessary.

Setting menu (PO4) Possible values Description

Measuring mode

PO4-P

PO4

The measured parameter is displayed

in the selected citation form.

Measuring range

With the setting

Measuring mode: PO4-P,

MR1

0.02 .. 15.00 mg/L

0.02 .. 15.00 ppm

Depending on the setting of the Mea-

suring mode, different measured vari-

ables can be selected within the low

(MR1) or high (MR2) measuring range.

The configuration (ACM and ACS) and

the installed parts (cell, ChemBags)

determine whether measurements in

the low (MR1) or high (MR2) measuring

range are possible.

With the setting

Measuring mode: PO4-P,

MR2

0.2 .. 50.0 mg/L

0.2 .. 50.0 ppm

With the setting

Measuring mode PO4, MR1:

0.06 .. 46.00 mg/L

0.06 .. 46.00 ppm

With the setting

Measuring mode PO4, MR2:

0.6 .. 153.0 mg/L

0.6 .. 153.0 ppm

Offset correction

With the setting

 Measuring mode PO4-P

and

 Measuring range

0.02 .. 15.00 mg/L, MR1

- 0.50…

0.00…+ 0.50

mg/L

For other measuring modes and mea-

suring ranges, the value ranges are

adjusted.

With the setting

 Measuring mode PO4-P

and

 Measuring range

0.2 .. 50.0 mg/L, MR2

- 5…

0…+ 5 mg/L

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Setting menu (general set-

tings)

Possible values Description

Meas. interval 5*,

10, 15, 20, 30, 45,

60 min

2, 4, 6, 8, 12 h

Measuring interval

* only for the low measuring range (MR1)

Damping

Off

Signal smoothing

median filter

Methods for filtering the signals

A signal filter in the sensor reduces the

limits of variation of the measured value.

For details, see section 4.3.3

With the setting

Signal smoothing:

The signal filter is essentially character-

ized by the response time t90.

Response time of the signal filter (in sec-

onds).

This is the time after which 90 % of a sig-

nal change is displayed.

Response time t90

100, 200, 300, 400 s

With the setting

median filter

The instrument displays the median of the

last 3 measurements as the measurement

value.

Autom.cleaning On

Off

Switches the automatic cleaning function

on or off

 Interval 6, 12,

24, 48, 96 Interval in h

 Ref.time hours 0…

7…23 Defines the start time from which the auto-

matic cleaning procedures will take place

at the set interval

(default setting: 7:00 o'clock)

PLEASE NOTE:

Recommended start time for

Autom.cleaning: approx. 1 - 2 hours

before Autom.calibration.

 Ref.time minutes

0…59

 Conditioning

count of steps

1 ...10

Adjustable number of rinses subsequent

to cleaning.

Off

Autom.calibration On

Off

Switches the automatic calibration func-

tion on or off

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 Procedure 1 Point

2 Point

Number of calibration points for automatic

calibration.

With the measured values deviating more

and more from the nominal value of the

calibration standard of the 1-point calibra-

tion, the measured values become more

inaccurate. If the measuring accuracy is

not sufficient with 1-point calibration (no

determination of the slope), activate 2-

point calibration.

PLEASE NOTE:

 For 1-point calibration the ChemBag at

the connector S1 is always used.

 For 2-point calibration, an extra tube

and an extra ChemBag have to be

installed (see section 5 Maintenance

and cleaning,  101).

 Interval 6, 12,

24, 48, 96 Interval in h

 Ref.time hours 0…

8…23 Defines the start time from which the auto-

matic calibration procedures will take

place at the set interval

(default setting: 8:00 o'clock)

PLEASE NOTE:

Recommended start time for

Autom.cleaning: approx. 1 - 2 hours

before Autom.calibration.

 Ref.time minutes

0…59

Backgr. corr.(opt) On

Off

Especially with low concentrations, the

standard background correction does not

sufficiently compensate for some interfer-

ences (e.g. due to colorations, humins). In

this case, activate the optimized back-

ground correction.

PLEASE NOTE:

For the optimized background correction,

an extra tube and an extra ChemBag have

to be installed (see section 5 Maintenance

and cleaning,  101).

Autost.after PwrOff On

Off

Activate or switch off the automatic start of

the Alyza IQ after a power failure

Setting menu (general set-

tings)

Possible values Description

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4.3.2 Priority

4.3.3 Damping

The Alyza IQ determines the measured values not continuously but at defined

intervals.

Two consecutive measured values can be quite different due to various rea-

sons. Possible reasons are

 actual concentration changes in the sample

 influence on the measured value determination not based on the sample.

Sample channel 1

1+2

Setting of the sample channel from which

the sample should be measured.

PLEASE NOTE:

If channel 2 or 1+2 is selected, channel 2

has to be installed (overflow vessel and fil-

tration pump).

If sample only from one channel should be

measured, the sample from channel 1 is

measured.

Temperature mode °C

°F

Temperature values are displayed in the

selected unit

Save and quit The Alyza IQ stores all changed settings

and the display switches to the next higher

level.

Quit The display switches to the next higher

level without storing the new settings.

Setting menu (general set-

tings)

Possible values Description

The Autom.cleaning, Autom.calibration and Meas. interval settings

may result in the overlapping of the carrying out of different func-

tions.

In this case, the functions are carried out according to priority.

Function Priority Duration (min)

Autom.cleaning 1 6 (1-channel variant)

12 (2-channel variant)

Autom.calibration 26

Measuring 3 5

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With the Damping you can specify how the Alyza IQ displays and transmits the

measured values.

Damping Off

The measured value is displayed immediately and unchanged.

Signal smoothing The last measured value is displayed with a delay.

Every 20 seconds the Signal smoothing function creates a display value in the

range between the last and the current measured value. This display value grad-

ually approximates the actual measured value during the time specified

( Response time t90).

The Response time t90 is the time after which 90 % of a signal change is dis-

played.

Median filter

The last determined measured value is only displayed if it meets the criteria for

the median.

The median filter function selects the medium value of the last 3 measured

values as the displayed value. The extreme values (upper and lower extreme

value) are discarded.

4.4 Calibration

4.4.1 Overview

Why calibrate? During operation, individual components of the Alyza IQ can age or become

dirty with time and thus change their characteristics, e.g.:

 Flow through cell

 LED of the photometer

 Photo diodes

 Color reagent

Regular automatic or manual calibration procedures help you to recognize any

changes of the measuring characteristics of the Alyza IQ.

1-point calibration The offset of the characteristic curve is adjusted with a regular 1-point calibra-

tion.

2-point calibration The slope and offset of the characteristic curve are adjusted with a 2-point cali-

bration.

For 2-channel instruments, the damping can be set separately for

each of the two channels.

The median filter only becomes active when three directly succeed-

ing measured values are present.

Example:

Measuring interval 10 min: The median filter is active after 30 min.

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When to calibrate? Calibrate at regular intervals.

Automatic

calibration

Any calibration can be carried out fully automatically at regular intervals.

Manual calibration An additional, manual calibration can be started in the Alyza menu (tab Mainte-

nance / Manual maintenance) at any time (see section 4.4.2 Calibration,  86).

Calibration record /

calibration history

The result of a calibration is stored in the calibration history (see Alyza menu /

tab History / Calibration history).

Maintenance

condition

To carry out a calibration procedure (automatically or manually), the mainte-

nance condition is always automatically activated for the Alyza IQ in the

IQ S

ENSORNET system. All linked outputs remain in their current status.

After an automatic calibration has been finished, the maintenance condition is

switched off automatically.

After a manual calibration has been finished, the maintenance condition has to

be switched off manually.

More detailed information on the maintenance condition is given in the

IQ S

ENSORNET system operating manual.

4.4.2 Calibration

Automatic

calibration

Automatic calibration is carried out in the measuring operation at regular inter-

vals.

The setting of the calibration interval and calibration time is done in the menu

Settings of sensors and difference sensors (see section 4.3 Settings for the

Alyza IQ,  80).

Manual calibration The manual calibration procedure can be started manually at any time if neces-

sary. The calibration procedure is started, and the setting of the standard used

is made, in the Alyza menu.

Proceed as follows to start a calibration procedure manually:

Stopping running

operation

You can also switch off the maintenance condition in the Alyza

menu, tab Maintenance.

Prior to every automatic calibration, the SystemCheck function is

carried out. The SystemCheck function automatically and regularly

checks whether the Alyza IQ is operable (for details, see section

5.10).

1 In the measured value display, use < > to select the Alyza IQ.

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figure 4-4 Measured value display of the Alyza IQ

2Using <C>, open the Alyza menu for the Alyza IQ.

3Using < >, switch to the Maintenance tab.

figure 4-5 Tab Maintenance

4 Carry out the STOP Alyza IQ function to stop the running operation.

5 Confirm the function to stop the running operation.

The maintenance condition is automatically activated in the

IQ S

ENSORNET for the Alyza IQ.

6 Open the menu item Manual maintenance.

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Carry out

calibration

Possible

calibration results

The calibration data are evaluated by the system. A calibration procedure can

have the following results:

Restarting the

measuring

operation

7 Carry out the function / Calibrate (1-point) or Calibrate (2-point).

For 1-point calibration the ChemBag at the connector S1 is always

used.

The calibration procedure runs automatically. The calibration result is

displayed after the calibration standards have been measured.

You have the following possibilities if the calibration failed:

 Repeat the calibration procedure

(make sure that the correct calibration standard is connected and

selected for calibration).

 Use the last valid calibration

(see section 4.4.4 Reactivating the last valid calibration,  89 )

 Use the factory calibration

(see section 4.4.4 Reactivating the last valid calibration,  89)

Display after cali-

brating

Meaning/actions

Measured value Successful calibration

"----" Calibration unsuccessful (see log book).

The Alyza IQ is blocked for measurement.

 Carry out maintenance activities immediately

(see sensor operating manual).

 View the calibration history in the Alyza menu.

 Check the calibration conditions and calibration

standard.

8 Carry out the START Alyza IQ function.

Measurement is started and the measured value is displayed in the

measured value display after approx. 5 ... 7 minutes.

9 Carry out the Switch off the maintenance condition function.

The maintenance condition is terminated in the IQ S

ENSORNET for the

Alyza IQ.

10 In the Alyza menu, use < > to switch to the Status tab.

The measured value display appears. While no valid measured value is

available, the display shows bars «- - - -».

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4.4.3 Calibration history

The calibration history of the Alyza IQ is available in the Alyza menu (tab History

/ Calibration history).

Example and explanation of a calibration history (see section 4.5.3 Information

on maintenance activities and calibration procedures (tab History),  93)

4.4.4 Reactivating the last valid calibration

Manual calibration

unsuccessful

If a manual calibration procedure is unsuccessful, the measuring operation can

only be resumed once a valid calibration was carried out or reactivated.

Thus you can immediately continue to measure if a calibration failed or you sus-

pect that the calibration conditions were not optimally met.

Automatic

calibration

unsuccessful

If an automatic calibration is unsuccessful, the last valid calibration is automati-

cally reactivated. If three calibration procedures in succession are unsuccessful,

the measuring operation can only be resumed once a valid calibration was car-

ried out or manually reactivated.

Reactivating old calibration data is a temporary measure. Take into

consideration that the sensor may provide wrong measured values.

Ensure the correct functioning of the Alyza IQ by checking and/or

recalibrating.

1 In the measured value display, use < > to select the Alyza IQ.

2 Using the <C> key, switch to the Alyza menu.

3Using < >, switch to the Maintenance tab.

4 Carry out the STOP Alyza IQ function to stop the running operation.

5 Confirm the function to stop the running operation.

The maintenance condition is automatically activated in the

IQ S

ENSORNET for the Alyza IQ.

6 Carry out the START Alyza IQ function.

A menu pops up with the following options:

 Repeat calibration

 Use factory calibration

 Use last valid calibration

 Show calibration details

7Select Use last valid calibration or Use factory calibration.

8 Switch off the maintenance condition.

The measured value is displayed after approx. 5 ... 7 minutes in the

measured value display.

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4.5 Information on the Alyza IQ

In the Alyza menu, there is comprehensive information available on the current

status of the Alyza IQ:

 Current operating condition (measuring, calibration, etc.)

 Schedule for the next interval-controlled actions, e.g. measuring, calibrating,

cleaning (tab Status)

 Schedule for the exchange of ChemBags (tab Remaining)

 Schedule for the execution of maintenance activities, e.g. replacement parts

(tab History / Installed replacement parts)

 Documentation of the maintenance activities carried out (tab History / Main-

tenance history)

 Documentation of the calibration procedures (Tab History / Calibration his-

tory)

 More information on the Alyza IQ (tab Info)

– Current measured values of sensors (e.g. temperature, etc.)

– Current statuses (e.g. heating, ventilator, cooling, etc.)

– Software versions of individual components of the Alyza IQ

– Serial numbers of individual assembly groups

4.5.1 Information on the current operating condition

(Tab Status)

During measuring operation, the information on the current operation condition

1 In the measured value display, use < > to select the Alyza IQ.

2 Using the <C> key, switch to the Alyza menu.

3Using < >< >, open one of the tabs with information on the Alyza IQ:

 Status (see section 4.5.1 Information on the current operating condi-

tion (Tab Status),  90)

 Remaining (see section 4.5.2 Information on the expected lifetimes

of replacement parts (tab Remaining),  91)

 History (see section 4.5.3 Information on maintenance activities and

calibration procedures (tab History),  93)

 Info (see section 4.5.4 More information on the Alyza IQ (tab Info),

 96)

You can also additionally transfer to a USB memory device the in-

formation displayed via the Alyza IQ (see section 4.6 Transferring

information to a USB memory device via the Alyza IQ, 

96).

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comprises the current measured values and also the schedule for the next inter-

val-controlled actions, e.g. measuring, calibrating or cleaning.

In the Status tab, the following information on the current operating condition is

available:

 Current operating condition (e.g. measuring, calibration, etc.)

 Measured value of the last measurement with date and time

 Schedule for the next interval-controlled action, e.g. measuring, calibrating

and cleaning

4.5.2 Information on the expected lifetimes of replacement parts

(tab Remaining)

The Remaining tab provides a quick overview of the maintenance activities due.

This information facilitates the planning and co-ordination of the maintenance

activities for the most important replacement parts (chemicals and MultiPort

valve) of the Alyza IQ.

figure 4-6 Operating condition (tab Status, example 2-channel variant)

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The estimated times remaining until the next exchange are shown in days in the

overview. If the times remaining are short, this is also indicated in the display.

figure 4-7 Overview Remaining (tab Remaining)

Remaining time Signal

< 30 d ! (next to remaining time)

< 10 d ! (flashes next to remaining time)

The remaining times can only be stated correctly if

 The exchange is done via the maintenance menu

 full ChemBags or new replacement parts are installed

 the expiry date printed on the ChemBag is correctly entered

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More details on the lifetime of a replacement part can be opened with <OK> .

4.5.3 Information on maintenance activities and calibration procedures

(tab History)

The Alyza IQ histories provide an overview of the replacement parts installed,

the maintenance activities carried out, and the calibration procedures per-

formed.

 Installed replacement parts

(list of the replacement parts installed with installation date and the expiry

date entered)

 Calibration history

(list of the last calibration procedures with the relevant calibration data)

 Cycle history (Service info)

(chronological list of performed partial steps on the MPV with evaluation)

 SystemCheck history (Service info)

(chronological list of performed System Checks with evaluation)

figure 4-8 Information on Remaining, detailed view (Tab Remaining)

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Installed

replacement parts

figure 4-9 Installed replacement parts (tab History / Installed replacement parts)

The list Installed replacement parts shows a list of all components that

have to be replaced regularly, i.e.when the use-by period has expired.

The installation date and expiry date of a component are recorded when

the component is installed. These data are documented.

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Calibration history The Calibration history list shows the last calibration results (see section 4.4.3

Calibration history,  89).

figure 4-10 Calibration history Alyza IQ

The calibration history provides the following information:



Date and time of the calibration



Srel (relative slope, is determined with 2-point-calibration)

Value without asterisk (*):

the slope was determined (2-point calibration)

* value with asterisk (*) :

the slope was not determined (1-point calibration);

the last active slope was taken over unchanged



OS (offset, is determined with 1- and 2-point calibration)



Type

M: Manual calibration

A: Automatic calibration

F: Factory setting



STD (concentration in mg/l of the calibration standards used)



MR (measuring range 1 [low] or 2 [high])



OK (evaluation of the calibration result):

+ successful calibration.

The new calibration data are taken over for measurement.

- calibration unsuccessful. Sensor blocked for measurement.

? : The last valid calibration or

factory setting was taken over



Abs. (absorbance standard 1 / standard 2), display with < >

To display more

information, use

< >< >

Current

calibration data

Chronological list of

the last calibration

procedures

To display explana-

tions and additional

information, use

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Cycle history (Ser-

vice info)

In the list Cycle history (Service info), partial steps (cycles) are recorded during

the operation of the Alyza IQ. The details of the cycles are used by the service

department to diagnose the causes of errors.

SystemCheck

history (Service

info)

In the list SystemCheck history (Service info), all System Checks that were car-

ried out automatically or manually are recorded. The details of the components

checked are used by the service department to diagnose the causes of errors.

4.5.4 More information on the Alyza IQ (tab Info)

In the Info tab there is more information on the Alyza IQ, which may be helpful

in the case of errors or implausible measured values. The following information

is displayed:

 Temperature control (temperature, functioning of the ventilators, heating

units, cooling unit)

 Software statuses (control units ACM, ACS, etc.)

 Serial numbers of individual components

4.6 Transferring information to a USB memory device via the

Alyza IQ

You can save the measurement data of the Alyza IQ via the USB interface of

your IQ S

ENSORNET controller as usual (see system operating manual).

Moreover, other operating data can also be transferred to a USB memory device

via the Alyza IQ:

 A selection of important operating data

(see section 4.6.1 Transferring to a USB memory device a selection of

important operating data,  97)

figure 4-11 Info (tab Info)

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 Detailed operating data for evaluation by the service department

(see section 4.6.2 Transferring detailed operating data to a USB memory

device for evaluation by the service department,  97)

4.6.1 Transferring to a USB memory device a selection of important oper-

ating data

These operating data provide an overview of important settings and data for the

functioning of your Alyza IQ.

 Measurement settings

 Calibration settings

 Calibration data of the last calibration

 Lifetimes of the replacement parts (MPV, ChemBags)

4.6.2 Transferring detailed operating data to a USB memory device for

evaluation by the service department

The service department can make use of the detailed operating data to analyze

and eliminate errors.

1 Plug a USB memory device to the USB interface of your IQ S

ENSORNET

controller (e.g. Terminal/Controller 2020 3G).

2 At the terminal, open the tab Maintenance in the Alyza menu.

3 Select the function, Save Alyza info file to USB memory device.

Follow the instructions on the display.

4 Remove the USB memory device from the USB interface of your

IQ S

ENSORNET controller.

5 Connect the USB memory device to the USB interface of a PC and dis-

play the file system of the USB memory device.

On the USB memory device there is the folder "AlyzaInfoData" with the

info data of the Alyza IQ.

Each time the data are output, a new file with the creation date and cre-

ation time in the file name is saved to the folder.

The assignment of the data to an Alyza IQ is secured via the series

number of the Alyza IQ in the file name.

1 Unscrew the 2 fixing screws of the cover lid of the control unit ACM and

remove the cover lid of the ACM.

2 If a USB plug is connected to the USB interface next to the "USB0" inter-

face:

Remove this USB plug.

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4.7 Software update for the Alyza IQ

With a Software-Update you can alway update your Alyza IQ to the latest status

of the instrument software.

For the update packet with the current instrument software for the Alyza IQ as

well as a comprehensive manual on how to carry out the update, go to

www.YSI.com.

The Alyza IQ is an IQ S

ENSORNET component with separate USB interface.

3 Plug a USB memory device to the USB interface "USB0".

4 At the terminal, open the tab Maintenance in the Alyza menu.

5 Select the function, Save service files to USB memory device.

Follow the instructions on the display.

6 Remove the USB memory device from the interface "USB0".

7 If necessary, re-insert the previously removed USB plug into the unla-

beled USB interface.

8 Reinsert the cover and fix it with the 2 fixing screws.

9 Connect the USB memory device to the USB interface of a PC and dis-

play the file system of the USB memory device.

On the USB memory device there is the folder "LogData" with the oper-

ating data of the Alyza IQ.

The folder includes several files with the operating data of the Alyza IQ.

The assignment of the data to an Alyza IQ is secured via the series

number of the Alyza IQ in the file name.

10 If requested, send some individual files or the entire folder "LogData" to

the service department.

The Software-Update for the Alyza IQ

is included in the update

packet for the IQ S

ENSORNET.

The software versions of all components can be viewed in the dialog

box List of all components (see IQ S

ENSORNET system operating

manual).

1 Download the software update IQ S

ENSORNET "Update Pack (L1)" and

store the directories to a USB memory device.

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NOTE

An interruption of the power supply during the update process can damage your

Alyza IQ.

After starting the update process, do not interrupt or cancel the data transmis-

sion. Do not interrupt the supply voltage during the update process!

The update takes up to 10 minutes.

2 Unscrew the 2 fixing screws of the cover lid of the control unit ACM and

remove the cover lid of the ACM.

3 Plug the USB memory device with the software update IQ S

ENSORNET

"Update Pack (L1)" to the USB interface "USB0".

4 On the terminal, switch to the measured value display of the

IQ S

ENSORNET.

5 In the service menu, start the software update (component with USB

interface).

A Software-Update does not change any measurement settings,

measurement data or calibration data.

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A sequence of beeps indicates the status of the software update.

The sequence of beeps is repeated until the status is finished automatically or

manually:

Sequence of beeps Explanation STATUS / Next step

UPDATE ACTIVE

1 short beep (0.2 secs.)

1 long pause (2.8 secs.)

Software update acti-

vated.

 Wait for the software update to be com-

pleted, e.g.

– 3 short beeps: SUCCESSFUL

– 3 long beeps: ERROR

 Wait for the software update to be contin-

ued or canceled.

If there is a longer pause (> approx.

3min)

with the display switched off:

– Switch off the Alyza IQ

– Wait for 10 seconds

– Switch on the Alyza IQ

1 very long pause

during the active update

(approx. 1 min),

the display is switched off.

The ACM is restarted

during a software

update.

UPDATE SUCCESSFUL

3 short beeps (0.2 s)

2 short pauses (0.2 s)

1 long pause (2 s)

Software updated car-

ried out

 Remove the USB memory device.

The Alyza IQ automatically restarts.

ERROR

3 long beeps (1 s)

2 long pauses (1 s)

1 long pause (10 s)

Software update not

successful

 Remove the USB memory device.

The Alyza IQ starts with the old software.

 Check the data on the USB memory

device and, if necessary, copy them

once again.

 Repeat the software update

2 long beeps (1 s)

1 long pause (1 s)

1 long pause (12 s)

Software update not

complete.

3 s

...

3 s

15 s

...

15 s

...

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5 Maintenance and cleaning

5.1 Hazard warnings

Read the chapter 2 Safety instructions,  22 before doing any maintenance

work. This is important for your personal safety.

NOTE

The interior of the measuring unit is temperature-controlled to 20 °C (68 °F).

With ambient temperatures over 25 °C (77 °F) and high air humidity, conden-

sation water may develop on the cool surfaces and cause damage when the

measuring unit is opened.

To avoid damage of the measuring unit due to the formation of condensation

water, always wait for the temperature adjustment (function "Prepare to open

measuring unit") to be completed before opening the measuring unit.

Hazards due to

chemicals

During the regular operation of the Alyza IQ, small quantities of (hazardous)

chemicals are used because of the measuring method.

The remains of the chemicals are transported out of the Alyza IQ via the drain

tubes:

 Return tube (outlet to the sedimentation tank)

 Waste tube (outlet into a collecting container for separate disposal)

For a safe routine operation, the required chemicals are stored in closed, leak-

proof ChemBags.

Contact with hazardous chemicals is possible especially in the following situa-

tions:

 Contact with waste solutions after measurement

 Contact with open tubes that still contain small amounts of chemicals (e.g.

during installation or maintenance work).

 Contact with damaged, leaking ChemBags (e.g. during installation or main-

tenance work).

 Contact with liquids in the collection tray under the ChemBags (e.g. during

installation or maintenance work).

Risks when

handling the

ChemBags

WARNING

Dangerous chemicals.

Improper use of chemicals can cause damage to your

health.

Heed the following rules:

 Read the labels of the ChemBags and follow the safety

instructions

 Wear protective equipment (lab coat, protective gog-

gles, chemical resistant protective gloves, safety

shoes)

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Notes on safely

handling the

ChemBags

 If a ChemBag was damaged in the transport packaging, e.g. visibly leaked

liquid, do not use this ChemBag in the Alyza IQ.

 Make sure you don't damage the ChemBags when unpacking them from the

transport packaging.

 Do not use any sharp object when dealing with (or unpacking) the Chem-

Bags.

 If possible, handle the ChemBags gripping only the cap in order not to kink

the ChemBags.

 For work done with the locking device of the MultiPort valve open:

Prior to working with the locking device open make sure that the connected

ChemBags are safely suspended from the supporting rod, and that they are

not pressed or moved while the locking device is open.

 Working with the ChemBags:

Prior to working with any connected ChemBags make sure that the MultiPort

valve is inserted and the locking device of the MultiPort valve is closed.

5.2 Opening the locking device of the MultiPort valve

("Before opening: Drain the system")

The MultiPort Valve is the core element for the distribution and dosing of the liq-

uids in the measuring unit. The MultiPort valve is connected to the liquids by ex-

actly positioning the MultiPort valve and pressing it to the seals. The pressing of

the MultiPort valve to the seals is done by closing the locking device. Only then

is the system sealed at the contact points of the liquids.

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How to prepare the maintenance of the measuring unit is described in detail with

the maintenance of the measuring unit (see section 5.5 Installing / exchanging

the ChemBags, MPV, tubes,  111).

Emptying the

system via the

Alyza menu

With an Alyza IQ ready for operation, empty the system via the Alyza menu.

WARNING

Dangerous chemicals.

Do not open the locking device of the MultiPort valve if the

maintenance activities at the measuring unit have not been

completed. Leaking chemicals can cause health problems

and damage the measuring unit.

Heed the following rules:

 Carry out the Prepare to open measuring unit function.

 Carry out the "Drain the system / All" function.

 Guide all tubes of the ChemBags over the tube fasten-

ers above the locking device.

 Fix the tubes in the tube fasteners.

 Make sure that the connected ChemBags are safely sus-

pended from the supporting rod, and that they are not

pressed or moved while the locking device is open.

 Make sure that the sample tubes (from the overflow ves-

sel to the measuring unit) are fixed in the recesses at the

left-hand side of the measuring unit.

 Follow the safety instructions.

 Wear protective equipment (lab coat, protective gog-

gles, chemical resistant protective gloves, safety

shoes)

Prior to opening the locking device always check whether the mea-

suring unit was prepared for the opening and whether the system

was emptied (e.g. tab Status in the Alyza menu).

1 Open the Maintenance / Manual maintenance menu in the Alyza menu.

2 Select the function, Prepare to open measuring unit.

Follow the instructions on the display.

The procedure starts the temperature adjustment of the measuring unit.

3 Drain all tubes (Maintenance / Manual maintenance / Drain the system

/ All).

If emptying via the Alyza menu is not possible, carry out the manual

emptying (section 5.9 Emptying the system manually,  144).

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Opening the

locking device

4 Put on your personal protective equipment (PPE) and chemical resis-

tant gloves (see section 2.4 Personal protective equipment (PPE),

 24).

5 Remove the front cover of the measuring unit.

The measuring unit is ready to be opened when the LED of the measur-

ing unit lights up white.

6 Using one hand, grip the handle at the upper edge of the front cover of

the measuring unit.

7 Pull the front cover of the measuring unit somewhat to the front against

the resistance.

8 Carefully take the front cover out to the front.

Put the front cover down in a clean place.

9 Make sure that the connected ChemBags are safely suspended from

the supporting rod.

10 Guide all tubes of the ChemBags over the tube fasteners above the

locking device and fix the tubes in tube fasteners.

figure 5-1 Tubes in the tube fasteners

11 Make sure that the connected ChemBags are safely suspended from

the supporting rod, and that they are not pressed or moved while the

locking device is open.

12 Make sure that the sample tubes (from the overflow vessel to the mea-

suring unit) are fixed in the recesses at the left-hand side of the measur-

ing unit.

13 Keep absorbent and lint free paper at hand so you can immediately

absorb any small chemicals remains.

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14 Prepare the locking device of the MultiPort valve (MPV) to be opened

(Maintenance / Manual maintenance / Prepare to open the locking

device of the MPV).

15 Confirm that the requirements for the opening are met.

When the locking device is ready to be opened, the status LED flashes

white. (You can open the locking device of the MultiPort valve without

warning sounds.)

16 When the status LED flashes white:

Open the locking device of the MultiPort valve (MPV)

Beeps and a red flashing status LED signal that not all require-

ments for a safe opening of the locking device were met.

When the locking device is open, there is the risk of leaking chem-

icals.

17 Immediately place the absorbent, lint free paper onto the MultiPort

valve.

18 Gently fold down the fluidic interface above the MultiPort valve by hand

so that it contacts the paper, and liquid remains are absorbed.

The locking device is now safely opened.

19 Make sure that the seals of the fluidic interface remain within the inter-

face.

figure 5-2 Removing the liquids remains with absorbent, lint free paper

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5.3 Replacement parts, accessories

Only use original replacement parts and accessories.

ChemBags are available as sets optimally combined for your application.

The combination as sets takes into account the following factors for your appli-

cation:

 Measured parameter

 Measuring range

 Quantity of liquid

 Stability

By using the sets you avoid any unsuitable combinations of ChemBags.

ChemBags are also obtainable individually.

ChemBags

NOTE

To avoid damage to the measuring unit caused by leaking chemicals,

make sure that the following requirements are met while you are work-

ing with the locking device open:



The connected ChemBags are safely suspended from the supporting

rod.



The ChemBags are not pressed or moved.



The tubes of the ChemBags are fastened in the tube fastening above

the locking device.



The sample tubes (from the overflow vessel to the measuring unit)

are fixed in the recesses at the left-hand side of the measuring unit.

20 Carry out any maintenance activities now as necessary.

Type Replacement parts

(ChemBag sets)

Order

number

R-PO4/1-1A Reagent for measuring range 1

(MR1, low MR)

827520

R-PO4/1-1B Reagent for measuring range 1

(MR1, low MR)

827521

R-PO4/1-2A Reagent for measuring range 2

(MR2, high MR)

827522

R-PO4/1-2B Reagent for measuring range 2

(MR2, high MR)

827523

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Further

replacement parts

S-PO4/1-0.0 Calibration standard 0.0 for mea-

suring range 1 (MR1, low MR)

827526

S-PO4/1-1.0 Calibration standard 1.0 for mea-

suring range 1 (MR1, low MR)

827527

S-PO4/1-10.0 Calibration standard 10.0 for mea-

suring range 1 (MR1, low MR) or

measuring range 2 (MR2, high

MR)

827528

S-PO4/1-40.0 Calibration standard 100.0 for

measuring range 2 (MR2, low MR)

827529

C-PO4/1-1 Cleaning solution 827533

R-Set PO4/1-1 Set of reagents for measuring

range 1 (MR1, low MR)

827550

R-Set PO4/1-2 Set of reagents for measuring

range 2 (MR2, high MR)

827551

SC-Set PO4/1-1_0/1 Set of calibration standards and

cleaning solution for measuring

range 1 (MR1, low MR)

827555

SC-Set PO4/1-1_0/10 Set of calibration standards and

cleaning solution for measuring

range 1 (MR1, low MR)

827556

SC-Set PO4/1-2_10/40 Set of calibration standards and

cleaning solution for measuring

range 2 (MR2, high MR)

827557

Individual ChemBags:

Available on the Internet at www.YSI.com.

Type Replacement parts

(ChemBag sets)

Order

number

Type Replacement parts Order

number

MPV-1 MultiPort valve 827000Y

Syringe Pump Set Syringe body with holder 827170Y

Further replacement parts and accessories:

Available on the Internet at www.YSI.com.

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Accessories

(optional)

The base solutions for chemical cleaning of the filter membrane can be pur-

chased in household or specialist shops, e.g. household hygienic cleaners

based on sodium hypochlorite.

For chemical cleaning, see section 5.6.2 Chemical cleaning of the filter plate,

 126.

NOTE

Detergents containing tensides can cause damage.

Therefore, do not use any detergents containing tensides.

5.4 Overview of the maintenance and cleaning activities

Maintenance activities have to be done at regular intervals on the Alyza IQ.

The following maintenance activities can be performed by the operator.

Type Accessories Order

number

WF Set Mounting set for a collection funnel 827187Y

TM Mounting set for the terminal

holder

822000Y

CheckValve Check valve

(for the sample feed tube)

827186Y

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Regular

maintenance

activities

Regular maintenance Interval

Measuring unit

(simple mainte-

nance activities

on site)

Installing/replacing the

MultiPort valve (MPV)

Approx. 12 months

with a measuring interval of 10

min.

Depending on the frequency of

the measuring, cleaning or cal-

ibrating procedures, the main-

tenance intervals will be

shorter or longer (see section

5.5,  111)

Installing / replacing

the ChemBags

Approx. 3 - 6 months (MR1),

approx. 1.5 - 3 months (MR2),

depending on the frequency of

the measuring, cleaning and

calibration routines (see sec-

tion 5.5,  111)

Check the collection

tray under the Chem-

Bags for dryness

When replacing ChemBags or

MPV (see section 5.5,  111,

and section 5.5.6,  119)

For logbook messages on

MPV leak tightness

Installing/replacing the

tubes on the MultiPort

valve (MPV)

12 - 24 months

(see section 5.5,  111)

Measuring unit

(complex main-

tenance activi-

ties in the labora-

tory, after remov-

ing the measur-

ing unit)

Installing / replacing

the syringe body

Approx. 2 years

(see mounting instructions of

the syringe body)

Installing / replacing

the tubes of the pho-

tometer unit )

As necessary

(see mounting instructions of

the tubes of the photometer

unit)

Waste collector and

waste tube of the mea-

suring unit

6 months

(see section 6.2.3,  156)

Sample inlet,

outlet

Clean the overflow

vessel and intake line

As necessary

(see section 5.6.5,  129)

Sample overflow tube As necessary

Collection funnel 2 ... 4 months

depending on the application

Return line

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Maintenance

activities at the

power supply box

Maintenance activities at the power supply box are only required for work at the

heat tracing or power cable (see section 5.8 Maintenance activities at the power

supply box,  139).

Sample filtration Sample filtration:

Cleaning the filter

plate (Filter/PC)

1 ... 4 months

depending on the application.

If cleaning does not help

(see section 5.6.4,  128)

Housing Cleaning the filter

mats at the housing

Depending on contamination

(see section 5.7.2,  136)

Cleaning the housing As required

(see section 5.7.1,  135)

Bug screen As necessary

Regular maintenance Interval

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5.5 Installing / exchanging the ChemBags, MPV, tubes

The routine maintenance activities at the measuring unit are included in one pro-

cedure (MPV, tubes, ChemBags).

Maintenance

preparation

Proceed as follows to carry out maintenance activities of the liquid circle of the

Alyza IQ:

WARNING

Dangerous chemicals.

Improper use of chemicals can cause damage to your

health.

Heed the following rules:

 Read the labels of the ChemBags and follow the safety

instructions

 Wear protective equipment (protective goggles, chemi-

cal resistant gloves)

For all activities at the open measuring unit:

 Note the environmental conditions (see fig. 3.3.1,  27).

 With low ambient temperatures, make sure that the liquids do not

freeze while the maintenance activities are carried out. Leave the

housing open for as short a time as possible.

 Open the outer housing door far enough so the arrestable brake-

stay catches.

 Open the inner housing door far enough so that it touches the

outer door. Tilt the angular sheet (at the inside of the outer door)

over the upper edge of the inside door.

During the initial commissioning, the install wizard guides you

through the maintenance preparation.

Continue with section 5.5.4 Installing the MultiPort valve (MPV) and

tubes ,  115.

1 Start the maintenance routine of the Alyza IQ (see section 5.5.1,  112)

2 Prepare the maintenance activities (see section 5.5.2,  113)

3 Open the measuring unit (see section 5.5.3,  113)

4 Check the collection tray under the ChemBags for liquids (see section

5.5.6,  119)

5 If required:

Installing the MultiPort valve (MPV) and tubes (see section 5.5.4,

 115)

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5.5.1 Start the maintenance routine of the Alyza IQ

6 If required:

Installing the ChemBags (see section 5.5.7,  121)

7 Terminating the maintenance routine (see section 5.5.8,  124)

1 In the measured value display, use < >< > to select the Alyza IQ.

figure 5-3 Measured value display of the Alyza IQ

2 Using the <C> key, switch to the Alyza menu.

3Using < >, switch to the Maintenance tab.

4 Open the Wizards menu.

5 Carry out the Replace MPV/ChemBag, change configuration function.

The menu Edit list of replacement parts is open.

6 Select the maintenance parts intended for maintenance and continue

the wizard.

7 Wait until the maintenance wizards allows the opening of the Alyza IQ.

The list of replacement parts does not include exchanging the tubes.

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5.5.2 Prepare the maintenance activities

5.5.3 Open the measuring unit

WARNING

Dangerous chemicals.

Improper use of chemicals can cause damage to your

health.

Heed the following rules:

 Read the labels of the ChemBags and follow the safety

instructions

 Wear protective equipment (protective goggles, chemi-

cal resistant gloves)

For all activities at the open measuring unit:

 Note the environmental conditions (see fig. 3.3.1,  27).

 With low ambient temperatures, make sure that the liquids do not

freeze while the maintenance activities are carried out. Leave the

housing open for as short a time as possible.

 Open the outer housing door far enough so the arrestable brake-

stay catches.

 Open the inner housing door far enough so that it touches the

outer door. Tilt the angular sheet (at the inside of the outer door)

over the upper edge of the inside door.

1 Put on your personal protective equipment (PPE) and chemical resis-

tant gloves (see section 2.4 Personal protective equipment (PPE),

 24).

The list of replacement parts does not include exchanging the tubes.

1 Start the maintenance routine of the Alyza IQ (see section 5.5.1,  112)

2 Prepare the maintenance activities (see section 5.5.2,  113)

3 Open the Alyza IQ.

4 Remove the front cover of the measuring unit.

The measuring unit is ready to be opened when the LED of the measur-

ing unit lights up white.

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5 Using one hand, grip the handle at the upper edge of the front cover of

the measuring unit.

6 Pull the front cover of the measuring unit somewhat to the front against

the resistance.

7 Carefully take the front cover out to the front.

Put the front cover down in a clean place.

8 Guide all tubes of the ChemBags over the tube fasteners above the

locking device and fix the tubes in tube fasteners.

figure 5-4 Tubes in the tube fasteners

9 Carry out the maintenance activities in the measuring unit.

Complete the maintenance routine (see section 5.5.8,  124).

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5.5.4 Installing the MultiPort valve (MPV) and tubes

WARNING

Dangerous chemicals.

Do not open the locking device of the MultiPort valve if the

maintenance activities at the measuring unit have not been

completed. Leaking chemicals can cause health problems

and damage the measuring unit.

Heed the following rules:

 Carry out the Prepare to open measuring unit function.

 Carry out the "Drain the system / All" function.

 Guide all tubes of the ChemBags over the tube fasten-

ers above the locking device.

 Fix the tubes in the tube fasteners.

 Make sure that the connected ChemBags are safely sus-

pended from the supporting rod, and that they are not

pressed or moved while the locking device is open.

 Make sure that the sample tubes (from the overflow ves-

sel to the measuring unit) are fixed in the recesses at the

left-hand side of the measuring unit.

 Follow the safety instructions.

 Wear protective equipment (lab coat, protective gog-

gles, chemical resistant protective gloves, safety

shoes)

Prior to opening the locking device always check whether the mea-

suring unit was prepared for the opening and whether the system

was emptied (e.g. tab Status in the Alyza menu).

1 Start the maintenance routine of the Alyza IQ (see section 5.5.1,  112)

2 Prepare the maintenance activities (see section 5.5.2,  113)

3 Open the measuring unit (see section 5.5.3,  113)

4 Make sure that the connected ChemBags are safely suspended from

the supporting rod, and that they are not pressed or moved while the

locking device is open.

5 Make sure that the sample tubes (from the overflow vessel to the mea-

suring unit) are fixed in the recesses at the left-hand side of the measur-

ing unit.

6 Keep absorbent and lint free paper at hand so you can immediately

absorb any small chemicals remains.

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7 When the status LED flashes white:

Open the locking device of the MultiPort valve (MPV)

Beeps and a red flashing status LED signal that not all require-

ments for a safe opening of the locking device were met.

When the locking device is open, there is the risk of leaking chem-

icals.

8 Check the MPV for moisture residue.

In case of larger amounts of moisture:

 Check whether there is liquid in the collection tray (see section 5.5.6,

 119)

 Check the info and error messages in the logbook.

9 Check that all seals are present on the underside of the fluidic interface.

10 Place the absorbent, lint free paper onto the MultiPort valve.

11 Gently fold down the fluidic interface above the MultiPort valve by hand

so that it contacts the paper, and liquid remains are absorbed.

The locking device is now safely opened.

figure 5-5 Removing the liquids remains with absorbent, lint free paper

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NOTE

To avoid damage to the measuring unit caused by leaking chemicals,

make sure that the following requirements are met while you are work-

ing with the locking device open:



The connected ChemBags are safely suspended from the supporting

rod.



The ChemBags are not pressed or moved.



The tubes of the ChemBags are fastened in the tube fastening above

the locking device.



The sample tubes (from the overflow vessel to the measuring unit)

are fixed in the recesses at the left-hand side of the measuring unit.

12 For initial installation of a tube at the MultiPort valve

(e.g. installing the tubes for standard 2 or reagent B):

Remove the blind plugs for the additionally required tube connectors

from the pressure plate of the MultiPort valve.

13 For initial installation of a MultiPort valve:

If necessary, remove from the fluidic interface of the MultiPort valve the

blind plugs required for the tube connectors of the MultiPort valve.

To do so, use the special tool in the base of the measuring unit.

14 When replacing individual tubes on the MultiPort valve:

Unscrew any old tubes from the fluidic interface of the MultiPort valve.

To do so, use the special tool in the base of the measuring unit.

15 When exchanging the MultiPort valve (MPV):

Remove the MultiPort valve.

The tubes of the MultiPort valve can be exchanged individually or as

a set:

In the delivery condition, the tube set is already mounted.

16 Only when exchanging the MultiPort valve (MPV):

Insert the new MultiPort valve (MPV).

17 Connect the tubes to the fluidic interface of the MultiPort valve.

NOTE

Damaged tubes may leak.

Folded or knotted tubes hamper the transport of the liquids.

The tubes must not be damaged, folded or knotted.

The tube to the photometer (glass capillary) is easily damaged and can

break when bended.

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5.5.5 Remove the ChemBags for maintenance activities

Color coding Connection of

Green (reagent) MPV - ChemBag R

Orange (calibration stan-

dard)

MPV - ChemBag S

Blue (cleaning solution) MPV - ChemBag C

18 Screw the new tubes onto the fluidic interface of the MultiPort valve.

Use the special tool for this.

19 If not yet done:

Remove the absorbent paper from the MultiPort valve (MPV).

20 Close the locking device of the MultiPort valve (MPV)

21 Carry out further maintenance activities in the measuring unit.

Complete the maintenance routine (see section 5.5.8,  124).

1 Start the maintenance routine of the Alyza IQ (see section 5.5.1,

 112).

2 Prepare the maintenance activities (see section 5.5.2,  113).

3 Open the measuring unit (see section 5.5.3,  113).

NOTE

To avoid damage to the measuring unit caused by leaking chemicals,

make sure that the following requirements are met while you are work-

ing with the ChemBags:



The MultiPort valve is inserted.



The locking device of the MultiPort valve is closed.

4 Remove the empty ChemBags from the supporting rod one by one.

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5.5.6 Check the collection tray under the ChemBags for liquids

5 Turn the ChemBags so that the valve points upward.

Suspend the tubes of the empty ChemBags from the tube grooves at

the photometer unit so that the ChemBags are suspended downwards

from the tubes.

figure 5-6 ChemBags removed to be exchanged

6 Check the collection tray under the ChemBags for moisture (see section

5.5.6,  119).

1 Start the maintenance routine of the Alyza IQ (see section 5.5.1,

 112).

2 Prepare the maintenance activities (see section 5.5.2,  113).

3 Open the measuring unit (see section 5.5.3,  113).

4 Remove the ChemBags for maintenance activities (see section 5.5.5,

 118)

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5 Check the collection tray under the ChemBags for liquids.

When the measuring unit is installed, the collection tray under

the ChemBags cannot be seen.

Indications of liquid in the collection tray can be detected, for

example, with the camera of a smartphone.

figure 5-7 Position of the collection tray in the measuring unit (under the ChemBags)

1 Collection tray

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5.5.7 Installing the ChemBags

NOTE

To avoid damage to the measuring unit caused by leaking chemicals, make sure

that the following requirements are met while you are working with the Chem-

Bags:



The MultiPort valve is inserted.



The locking device of the MultiPort valve is closed.

6 If there is liquid in the collection tray:

 Check the ChemBags for moisture and damage.

 Check the drain tube from the MPV to the collection tray for moisture.

 Dry the collection tray

– For larger quantities of liquid:

Draw up liquid e.g. with a syringe and dispose of it.

– With little moisture:

Absorb the moisture with an absorbent cloth and dispose of it.

 In case of leaking or defective maintenance parts:

– Schedule the replacement of leaking parts via the maintenance

routine in the Alyza menu.

– Schedule the replacement of the leaking ChemBag via the main-

tenance routine in the Alyza menu (see section 5.5.7,  121)

– Check the MPV for moisture (see section 5.5.4,  115)

– Check the log book messages.

7 Carry out further maintenance activities in the measuring unit.

Complete the maintenance routine (see section 5.5.8,  124).

1 Start the maintenance routine of the Alyza IQ (see section 5.5.1,

 112).

2 Prepare the maintenance activities (see section 5.5.2,  113).

3 Open the measuring unit (see section 5.5.3,  113).

4 Remove the ChemBags for maintenance activities (see section 5.5.5,

 118).

5 Check the collection tray under the ChemBags for liquids (see section

5.5.6,  119).

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NOTE

Damaged ChemBags may leak.

To avoid damage, the ChemBags must not be folded near the connector.

6 Unscrew the coupling of the tube from the ChemBag connector.

7 Unscrew the protection cap of the ChemBag to be connected. The

ChemBag connector points upward.

8 Screw the protective cap onto the connector of the empty ChemBag.

The ChemBags with the longest lifetime do not have to be ex-

changed often. Suspend them first from the supporting rod and slide

them to the rear.

 Cleaning solution (C-...),

most often has the longest lifetime

 Standard 2 (S-...x)

 Standard 1 (S-...y)

 Reagent B (R-...B) (for optimized background correction, Backgr.

corr.(opt))

 Reagent A (R-...A)

figure 5-8 Recommended order of the ChemBags on the supporting rod

9 Screw the coupling of the tube tightly onto the connector of the new

ChemBag.

Make sure that the codings of the ChemBag and tube agree (symbol,

color, number).

C-...

S-...-x

S-...-y

R-...B

R-...A

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Hold the ChemBags by the connector, with the connector facing upwards .

To suspend the ChemBags from the supporting rod:

Carefully turn the ChemBags upside down, without folding the ChemBags or

tubes.

figure 5-9 Connecting the ChemBag

1 Color coding of the tube

2 Color coding of the ChemBag

10 Carefully turn the ChemBag upside down.

The connector points downward.

11 If necessary, slightly knock on the connector of the ChemBag to remove

any small bubbles from the connector.

12 Suspend the ChemBag from the supporting rod.

13 Connect all selected ChemBags

– 1 cleaning solution (blue)

– 1 - 2 standard solutions (orange)

– 1-point calibration: Standard solution to connector S1

– 2-point calibration:

low standard solution to connector S1,

higher standard solution to connector S2

– 1 - 2 reagent solutions (green)

14 For each ChemBag, enter the expiry date and, if necessary, the filling

level (for used ChemBags) on the display.

15 Guide all tubes of the ChemBags over the tube fasteners above the

locking device and fix the tubes in the tube fasteners.

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5.5.8 Terminating the maintenance routine

5.6 Cleaning the sample filtration and sample feed

The Alyza IQ has an extra counter for each ChemBag (see

section 1.3.3 ChemBags,  15).

When delivered, the counters are set to 100 %.

16 Carry out further maintenance activities in the measuring unit.

Complete the maintenance routine (see section 5.5.8,  124).

1 After maintenance activities at the measuring unit:

 Hang the ChemBags back onto the supporting rod (see section

5.5.7,  121).

 Close the front cover of the measuring unit and the doors of the

Alyza IQ.

2 Follow the maintenance wizard.

Carry out the OK + START + Switch off maintenance condition function.

Wait until the maintenance wizard has finished.

Measurement is restarted and the measured value is displayed in the

measured value display after approx. 5 ... 7 minutes.

3 After installing ChemBags with reagents:

 Calibrate the measuring system

(Alyza menu / tab Maintenance / Manual maintenance / Calibrate (2-

point))

 Carry out the START Alyza IQ function. Measurement is started and

the measured value is displayed in the measured value display after

approx. 5 ... 7 minutes.

 Carry out the Switch off the maintenance condition function.

Cleaning of the filter module, see the following documents:

 Mounting instructions for the filter module (FM/PC)

 Alyza IQ - short instructions for cleaning the filter membrane

module (included in the scope of delivery of the Alyza IQ )

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5.6.1 Mechanical cleaning of the filter plate

The time when to clean the filter plate can be determined empirically based on

the negative pressure display on the filtration pump.

 A pulsing negative pressure manometer suggests a normal operating condi-

tion of the filtration unit.

 With a delivery height of approx. 2 m and a new filter plate, the negative pres-

sure is approx. -0.3 bar.

Every meter of delivery height increases the negative pressure by approx. -

0.1 bar.

If the negative pressure increases by a further -0.3 ... -0.4 bar with time, the

filter plate is covered with solid matter from the sample and has to be cleaned.

 If, after the mechanical cleaning, there is still negative pressure, a chemical

cleaning is required, or the intake line may be blocked.

NOTE

Dirt particles and contamination in the sample line can block the valves of the

measuring unit.

During the cleaning activities, make sure that no dirt particles get into the open

tube ends or the connector of the filter module.

Protect the open tubes and connectors during the cleaning activities, e.g. with

blind plugs.

Maintenance

interval

2 to 4 months, depending on the application

Preparations

NOTE

The filter plate is easily damaged. Never touch the filter plate with sharp-edged

objects or place any objects on it.

Pressure on the filter plate may only be applied from the outside. No counter-

1 Stop the Alyza IQ with the function, STOP Alyza IQ.

The maintenance condition is automatically activated in the

IQ S

ENSORNET for the Alyza IQ.

2 Switch off the filtration pump with the Stop key.

3 Pull the filtration unit out of the basin or channel.

 The filter module does not have to be separated from the guide slide.

 Do not unplug the sample line.

 Do not dismount the filter plate from the frame.

4 Rinse off of the filtration unit any gross contamination with low water

pressure (e.g. with a watering can or wash bottle).

5 Then carefully remove the coating from the filter plate using a soft spe-

cial brush. Normally the brownish coating can well be seen coming off

while the lighter surface of the filter plate is appearing.

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pressure may build up through the intake line.

Do not press the special brush onto the surface of the filter plate too firmly and

do not change the moving direction of the brush (do not scrub!).

Restarting the

measuring

operation

5.6.2 Chemical cleaning of the filter plate

Chemical cleaning is recommended if mechanical cleaning no longer achieves

any significant improvement, i.e. the negative pressure on the manometer no

longer decreases significantly after mechanical cleaning.

In this case, the filter plate is blocked. The blockage is mostly organic and can

only be removed by chemical cleaning.

The chemical cleaning is carried out with the aid of a suitable container (Filter-

CL) for the cleaning bath. The amount of cleaning solution required depends on

the shape and size of the cleaning container.

Cleaning solution In most cases, organic blockages can easily be removed with an aqueous sodi-

um hypochlorite solution (chlorine bleaching agent, NaClO, 1 % active chlorine).

In some cases, NaOH 4 % (sodium hydroxide) has proven effective.

In case of calcification, diluted acetic acid (max. 10 % acetic acid) or diluted citric

acid (max. 10 % citric acid) is recommended.

NOTE

High temperatures damage the material of the filter. Use acidic cleaning

solutions only in the temperature range 5°C...35°C.

Preparing the

cleaning solution

The cleaning solution can be made from different detergent concentrates by di-

luting with water. A selection of possible detergent concentrates is given in the

section 5.3 Replacement parts, accessories,  106.

Prepare the cleaning solution according to the following table. It can be mixed in

If the contamination cannot be removed with the mechanical clean-

ing, carry out the chemical cleaning (see section 5.6.2 Chemical

cleaning of the filter plate,  126).

6 After cleaning, check both sides of the filter plate for damage.

7 Thoroughly clean the special brush under running water, dry it and store

in a dust free place till the next use.

8 Remount and secure the cleaned filter module on the slide.

9 Submerse the filtration unit in the basin or channel.

10 Switch on the filtration pump with the Start key.

11 Restart the Alyza IQ and switch off the maintenance condition at the

IQ S

ENSORNET.

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the cleaning container.

Pre-cleaning

Base solution

Preparation instruc-

tions

Yield

Household hygienic cleaner

based on sodium hypochlorite

Add so much water to

1.5 l hygienic cleaner

that the volume is 6 l

6 l

Techn. sodium hypochlorite

solution (13 % active chlorine)

Add so much water to

300 ml solution that the

volume is 5 l

5 l

WARNING

Dangerous chemicals.

Improper use of chemicals can cause damage to your

health.

Heed the following rules:

 Read the labels of the ChemBags and follow the safety

instructions

 Wear protective equipment (lab coat, protective gog-

gles, chemical resistant protective gloves)

1 Prior to each chemical cleaning, pre-clean the membrane with the spe-

cial brush and rinse it with water (see section 5.6.1 Mechanical cleaning

of the filter plate,  125).

2 Dismount the filter unit from the slide.

3 Dismount the intake line from the filter unit.

4 Protect the filter plate against any contamination coming in (e.g. by clos-

ing the connection adapter for the intake line).

5 Dismount the filter plate (see section 5.6.4 Replacing the filter plate of

the sample filtration,  128).

6 Close the connector of the filter unit and the open intake line with blind

plugs to that no contamination can get into the filter.

The chemical cleaning of the filter plate may take some time.

Use a replacement filter module (FM/PC) during the cleaning pro-

cess to keep the downtime of the Alyza IQ as short as possible.

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Chemical cleaning

Restarting

operation

5.6.3 Storing a used and cleaned filter plate

Proceed as follows to store the filter plate:

5.6.4 Replacing the filter plate of the sample filtration

NOTE

The filter plate is easily damaged. Never touch the filter plate with sharp-edged

objects or place any objects on it.

7 Completely submerse the filter module with the installed filter plate in

the cleaning container filled with the cleaning solution.

 Start with a reaction time of 30 minutes.

 Watch the cleaning success and extend the reaction time as neces-

sary.

8 After the chemical cleaning, rinse the filter module with clean water.

Even a filter plate that is supposedly irreversibly blocked may be re-

stored by leaving it in the cleaning solution for a longer period of time

and then rinsing it several times.

9 After cleaning, check both sides of the filter plate for damage.

10 Remount the filter plate (see section 5.6.4 Replacing the filter plate of

the sample filtration,  128).

Store the cleaned filter plate (see section 5.6.3 Storing a used and

cleaned filter plate,  128).

1 Clean the filter plate mechanically.

2 Clean the filter plate chemically.

3 Rinse the filter plate under flowing tap water.

4 To protect it against drying out, store the filter plate in the Filter-CL

cleaning container or in a sealed plastic bag.

Prior to each use, soak the filter plate in tap water.

If the filter plate has dried out, soak it in tap water for several hours.

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Maintenance

interval

As necessary, if cleaning does not help.

Proceed as follows to exchange the filter plate:

Dismounting the

filter plate

Remounting the

filter plate

Restarting the

measuring

operation

5.6.5 Cleaning the sample feed, overflow vessel and outlet

The intake line takes the sample liquid from the filter module to the filtration

1 Stop the Alyza IQ with the function, STOP Alyza IQ.

The maintenance condition is automatically activated in the

IQ S

ENSORNET for the Alyza IQ.

2 Switch off the filtration pump with the Stop key.

3 Pull the filtration unit out of the basin or channel.

 Do not separate the filter module from the guide slide.

 Do not dismount the filter plate from the frame.

4 Clean the filtration unit.

5 Dismount the filter module from the guide slide.

6 Unscrew the V4A countersunk screws of the frame (12 hexagon sock-

ets).

7 Remove the used filter plate.

8 Clean the frame.

Cleaning of the filter plate, see

 section 5.6.1 Mechanical cleaning of the filter plate,  125

 section 5.6.2 Chemical cleaning of the filter plate,  126

9 Insert a new filter plate in the lower frame part.

10 Place the upper frame part onto the lower frame part with the built-in fil-

ter plate.

11 Insert the V4A countersunk screws and tighten them by hand.

The fixing ring and lower part of the housing must be pressed together

and flush (without gap).

12 Remount and secure the cleaned filter module on the slide.

13 Submerse the filtration unit in the basin or channel.

14 Switch on the filtration pump with the Start key.

15 Restart the Alyza IQ and switch off the maintenance condition at the

IQ S

ENSORNET.

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pump. The sample feed tube goes from the filtration pump to the overflow ves-

sel. From time to time it can be required to clean the intake line, sample feed

tube and overflow vessel.

fig. 5-10,  130 shows the intake line (blue, ID 2mm; OD 4 mm) in the Alyza IQ.

fig. 5-11,  130 shows the intake line on a mounted filter module in a sedimen-

tation tank.

figure 5-10 Filtration pump with intake line and tubes

1 Overflow vessel

2 Sample feed tube

3 Sample overflow tube

4 Intake line

figure 5-11 Sample filtration device (installed)

1 Chain (scope of delivery: basin holder for filtration M 1.5)

2 Guide rail (scope of delivery: basin holder for filtration M 1.5)

3 Height adjustable slide (scope of delivery: Suction line)

4 Intake line (scope of delivery: Suction line)

5 Sleeve tube (scope of delivery: Suction line)

6 Filter module (FM/PC) with filter plate (Filter/PC)

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Maintenance

interval

As required.

Proceed as follows to clean the intake line:

Starting the

maintenance

routine of the

Alyza IQ

WARNING

Dangerous chemicals.

Improper use of chemicals can cause damage to your

health.

Heed the following rules:

 Read the labels of the ChemBags and follow the safety

instructions

 Wear protective equipment (lab coat, protective gog-

gles, chemical resistant protective gloves)

1 In the measured value display, use < >< > to select the Alyza IQ.

figure 5-12 Measured value display of the Alyza IQ

2 Using the <C> key, switch to the Alyza menu.

3Using < >, switch to the Maintenance tab.

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Carrying out

maintenance

activities

figure 5-13 Tab Maintenance

4 Carry out the STOP Alyza IQ function to stop the running operation.

5 Confirm the function to stop the running operation.

The maintenance condition is automatically activated in the

IQ S

ENSORNET for the Alyza IQ.

WARNING

Dangerous chemicals.

Improper use of chemicals can cause damage to your

health.

Heed the following rules:

 Read the labels of the ChemBags and follow the safety

instructions

 Wear protective equipment (protective goggles, chemi-

cal resistant gloves)

For all activities at the open measuring unit:

 Note the environmental conditions (see fig. 3.3.1,  27).

 With low ambient temperatures, make sure that the liquids do not

freeze while the maintenance activities are carried out. Leave the

housing open for as short a time as possible.

 Open the outer housing door far enough so the arrestable brake-

stay catches.

 Open the inner housing door far enough so that it touches the

outer door. Tilt the angular sheet (at the inside of the outer door)

over the upper edge of the inside door.

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Preparations

Cleaning

NOTE

Detergents containing alcohol will damage the overflow vessel.

NOTE

Acids as cleaning agents damage individual components of the sample feed and

sample inlet (Requirements of the test sample (by the filtration system) see sec-

tion 8.2).

6 Put on your personal protective equipment (PPE) and chemical resis-

tant gloves (see section 2.4 Personal protective equipment (PPE),

 24).

7 Switch off the filtration pump with the Stop key.

8 Keep ready a container to collect the contents of the overflow vessel.

9 Empty the sample tube (Alyza menu / tab Maintenance / Manual main-

tenance / Drain the system / Sample xxx)

10 Unscrew the sample tube from the overflow vessel.

11 Open the quick coupling of the sample feed tube on the overflow vessel

and let the contents of the overflow vessel drain into the container.

12 Remove the overflow vessel from the Alyza IQ.

13 Open the lid of the overflow vessel.

14 Clean the overflow vessel and lid with a brush, water, descaler or deter-

gent.

Subsequently, thoroughly rinse the overflow vessel with water to

remove any detergent residues.

15 If necessary: exchange or clean the filter plate (see section 5.6.1

Mechanical cleaning of the filter plate,  125).

16 Provide a container of cleaning solution for the intake line and sample

feed tube.

Recommended minimum amount of cleaning fluid:

Length of intake line Minimum quantity of cleaning solution

5 m ≥ 30 ml

10 m ≥ 50 ml

20 m ≥ 100 ml

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17 Disconnect the intake line from the filter module and put it in a container

with cleaning solution (recommendation: see section 5.3 Replacement

parts, accessories,  106).

18 Insert the end of the sample feed tube into a bottle (≥ 0.5 l) or another

suitable container.

19 Secure the bottle and sample feed tube.

WARNING

Dangerous chemicals.

Wear protective equipment (lab coat, protective goggles,

chemical resistant protective gloves)

Risk of splashing!

During operation, the filtration pump can develop consid-

erable pressure. Therefore, absolutely heed the following

instructions:

 Fix the sample intake tube so that the pressure surges

of the filtration pump will not make it come out of the

bottle.

 Cover the bottle so that no cleaning solution can splash

out due to the pressure surges.

 Bring the bottle into a stable position and fix it if neces-

sary.

 If necessary, test the arrangement with tap water first.

20 Switch on the filtration pump with the Start key.

Cleaning solution is drawn in through the intake line until it flows into the

bottle at the open line end. Leave the filtration pump switched on until

the minimum quantity (see  133) has been drawn in from the container

with cleaning solution.

If necessary, increase the percent setting for the pump performance at

the filtration pump.

21 Switch off the filtration pump with the Stop key; allow the cleaning solu-

tion to take effect (altogether approx. 10 min). During this time, occa-

sionally start/stop the filtration pump so the cleaning solution in the

intake line is moved towards the bottle.

22 When doing so, check the filling level of the bottle to keep the solution

from overflowing. If necessary, empty the bottle (dispose of the cleaning

solution properly).

23 Switch off the filtration pump with the Stop key.

24 Reconnect the intake line to the filter module and reinstall the filter mod-

ule in the sample.

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NOTE

Make sure that the liquids in the collection funnels can drain off freely. A blocked

collection funnel can cause the liquids to overflow into the housing of the

Alyza IQ . Liquids can cause damage to the housing and electrical components.

Restarting the

measuring

operation

5.7 Maintenance activities at the housing

5.7.1 Cleaning the housing of the Alyza IQ

Outside Clean the outside of the housing with a brush, water, and dish-washing solution.

Inside Clean the inside with a moist (not dripping) cloth, water, and dish-washing solu-

tion.

25 Switch on the filtration pump with the Start key and let it pump for some

time (at least 5 - 10 min, depending on the length of the intake line) with

approx. 60% capacity to completely remove all the cleaning solution

from the filter plate and intake line. This can normally be recognized by

the clear sample liquid that comes out of the line. If necessary, set the

percent setting for the pump capacity to the previous value.

26 Switch off the filtration pump with the Stop key.

27 Reinstall the overflow vessel in the Alyza IQ.

28 If necessary: Clean the collection funnel for the sample return and the

return line with a brush and water.

29 Mount the sample overflow tube to the collection funnel for the sample

overflow.

30 Screw the sample feed tube to the overflow vessel.

31 Re-connect the sample tube to the overflow vessel.

32 Remove the container that held the cleaning solution. Dispose of the

remainders of the cleaning liquid properly.

33 Switch on the filtration pump with the Start key.

34 Leave the filtration pump to work for some time to completely remove

the detergents.

35 Fill the sample tube (Maintenance / Manual maintenance / Fill the sys-

tem / Sample xxx)

36 Restart the Alyza IQ and switch off the maintenance condition at the

IQ S

ENSORNET.

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5.7.2 Changing the filter mats

The filter mats are in front of the ventilation grids (under the housing lid and on

the underside of the housing).

The ventilators are behind the ventilation grids. The filter mats can thus be ex-

changed riskless even during operation.

Maintenance

interval

Depending on contamination

Upper filter mat

1 Remove both front screws on the housing lid.

2 Open the housing lid upward and fix it with the bearer (see fig. 5-14,

 136).

figure 5-14 Opening the housing lid

1 Housing lid

2 Bearer

3 Boring for the fixing screw

4 Filter mat holder

3 Open the upper filter mat holder with the aid of a screwdriver by levering

it off and exchange the upper filter mat (see fig. 5-15,  137).

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Lower filter mat

5.7.3 Checking the temperature control

For correct measured values, it is required to control the temperature of some

figure 5-15 Exchanging the upper filter mat

1 Upper filter mat holder

2 Upper filter mat

3 Opening for screwdriver

4 Press the upper filter mat holder shut again.

5 Fold the bearer and close the housing lid.

6 Screw the housing lid tight with the two screws.

7 Position yourself under the Alyza IQ housing.

8 Open the lower filter mat holder and exchange the filter mat as done

with the upper filter mat holder.

figure 5-16 Exchanging the lower filter mat

1 Lower filter mat

2 Lower filter mat holder

9 Close the lower filter mat holder again.

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areas of the Alyza IQ.

The temperature control is automatically and regularly checked by the function

SystemCheck (see section 5.10). You can start the SystemCheck function also

manually (Alyza menu, tab Maintenance / SystemCheck).

The Alyza IQ has 3 areas that are temperature-controlled differently:

Heating units, a ventilator and a cooling unit are used to control the temperature

of the areas.

The correct temperature control is continuously and automatically monitored for

each area in the Alyza IQ.

If an area of the Alyza IQ is not within the specified range, a message appears

in the log book. If the deviation from the specified range is great, the Alyza IQ is

automatically stopped. The error is documented by an error message in the log

book.

You can check very easily and at any time the current status of the temperature

control in the Alyza menu / tab Info. All temperatures (temperature inside the

housing, temperature within the measuring unit) and the operating condition of

the ventilators, heating and cooling unit are documented.

Range Temperature control

Housing inside +5 ... +40 °C (+41 ... +104 °F)

Measuring unit 20 °C (68 °F)

Photometer unit 45 °C (113 °F)

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5.8 Maintenance activities at the power supply box

Switching off the

power supply

WARNING

If the power supply is connected incorrectly, there may be

danger to life from electric shock.

Pay attention to the following points during installation:

 The power supply box may only be connected to the

power supply by a qualified electrician.

 The power supply box may only be connected to the

power supply when it is not carrying any voltage.

 The power supply must fulfill the specifications given

on the nameplate and in chapter 8 Technical data,

 170.

 The power supply of the heat tracing must fulfill the

specifications given on the heat tracing (240 VAC or 120

VAC).

 To operate a heat tracing line, a fault current protection

switch (ground fault circuit interrupter) has to be in-

stalled.

 The power cable must meet the requirements according

to the technical data (see section 8.4 Electrical data,

 175).

For all work done with the housing open:

 If the Alyza IQ was already in operation:

Before opening the doors, start the maintenance routine at the

terminal.

 Note the environmental conditions (see section 3.3.1 Require-

ments of the measurement location,  27).

 Open the outer housing door far enough so the arrestable brake-

stay (on the lower right side of the housing) catches.

 Open the inner housing door far enough so that it touches the

outer door. Tilt the angular sheet (at the inside of the outer door)

over the upper edge of the inside door.

1 Open the outer housing door far enough so the arrestable brake-stay

(on the lower right side of the housing) catches.

2 Open the inner housing door far enough so that it touches the outer

door. Tilt the angular sheet (at the inside of the outer door) over the

upper edge of the inside door.

3 Switch off all filtration pumps (STOP).

4 Switch off the 24 V power supply.

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Removing the

mounting plate

5 Switch the power line potential free.

6 Unscrew the 2 fixing screws of the cover (on the top right side in the

housing) and remove the cover of the ACM.

If the filtration pumps have already been in operation, sample liquid

may escape when the tubes are unscrewed. Provide a collecting

container in such a case.

7 Remove the cable connections and the connections of the tubes and liq-

uid lines from the mounting plate:

 Unplug the 2 cables from the switch box.

 Unscrew the sample tubes from the overflow vessels.

 Unplug the blue intake lines of the filtration unit.

8 Remove the mounting plate:

 Unscrew the 2 fixing nuts (3) at the bottom of the mounting plate.

 Unscrew the 2 fixing screws (2) at the upper edge of the mounting

plate.

Secure the mounting plate against falling out.

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Opening the power

box

figure 5-17 Mounting plate

1 Mounting plate

2 Fixing screw at the upper edge

3 Fixing nuts at the lower edge

4 Switch box with 24 VDC switch

9 Remove the mounting plate:

 Lift the mounting plate upward over the threaded pins.

 Tilt the upper edge of the mounting plate somewhat backwards and

remove the mounting plate from the housing downwards.

 Place the mounting plate with the rear side down on a protected sur-

face (e.g. with cardboard).

10 Unscrew all nuts with safety disks (10 pieces) from the power supply

box and remove the lid of the power supply box.

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figure 5-18 Connections of the power supply box

1 Power supply module

2 Ventilator

3 Power supply filter

4 Connecting terminals for the heat tracing lines

4 - 7: yellow/green (protective earth conductor)

8 - 11: gray

12 - 15: blue

5 Power supply of the heat tracing lines

6 Overvoltage protection

7 Power line

8 Cable gland for heat tracing of intake line (channel 1)

9 Cable gland for heat tracing of intake line (channel 2)

10 Cable gland for heat tracing of return line 1

11 Cable gland for heat tracing of return line 2

11 Carry out the maintenance activities at the power supply box.

8 9

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Closing the power

supply box

Reinserting the

mounting plate

Restoring the

power supply

Details on connecting the heat tracing and power cable:

See section 3.3.13 Connecting the power cable and heat tracing

lines,  50.

12 Check whether all connections are made correctly.

13 Tighten the cable glands on the power supply box with a torque of 2.5

Nm.

The cable glands protect the power supply box from dust and moisture.

Make sure that no cable touches the power supply filter.

14 Remount the lid of the power supply box and screw tight all nuts with

safety disks as far as they will go (0.4 Nm).

The power supply box is closed and protected against dust and mois-

ture.

15 Insert the mounting plate:

 Plug the mounting plate on the threaded pins inside the housing.

 Tighten the 2 fixing screws (2) at the upper edge of the mounting

plate.

 Tighten the 2 fixing nuts (3) at the bottom of the mounting plate.

16 Re-establish the cable connections and the connection of the tubes and

liquid lines.

 Plug the sample feed tubes onto the connectors of the filtration

pumps.

 Screw the sample tubes to the connectors of the overflow vessels.

 Re-insert the sample return tubes into the collection funnel for the

sample return.

 Re-connect the 2 cables to the switch box.

17 Reinsert the cover and fix it with the 2 fixing screws.

18 Switch on the mains power supply.

19 Switch on the 24 V power supply.

20 Switch on all filtration pumps (START).

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Restarting the

measuring

operation

5.9 Emptying the system manually

NOTE

With manual emptying, there is the risk of material damage due to spilled chem-

icals.

Do not empty manually if it is possible to empty the system via the Alyza menu

(see section 5.2 Opening the locking device of the MultiPort valve ("Before

opening: Drain the system"),



102).

Emptying the

system manually

21 Complete the maintenance routine (see section 5.5.8,  124).

For all activities at the open measuring unit:

 Note the environmental conditions (see fig. 3.3.1,  27).

 With low ambient temperatures, make sure that the liquids do not

freeze while the maintenance activities are carried out. Leave the

housing open for as short a time as possible.

 Open the outer housing door far enough so the arrestable brake-

stay catches.

 Open the inner housing door far enough so that it touches the

outer door. Tilt the angular sheet (at the inside of the outer door)

over the upper edge of the inside door.

WARNING

Dangerous chemicals.

Improper use of chemicals can cause damage to your

health.

Heed the following rules:

 Read the labels of the ChemBags and follow the safety

instructions

 Wear protective equipment (protective goggles, chemi-

cal resistant gloves)

1 Open the outer housing door far enough so the arrestable brake-stay

(on the lower right side of the housing) catches.

2 Open the inner housing door far enough so that it touches the outer

door. Tilt the angular sheet (at the inside of the outer door) over the

upper edge of the inside door.

3 Put on your personal protective equipment (PPE) and chemical resis-

tant gloves (see section 2.4 Personal protective equipment (PPE),

 24).

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NOTE

Damaged ChemBags may leak.

To avoid damage, the ChemBags must not be folded near the connector.

Hold the ChemBags at the connector, with the liquid downward.

To suspend the ChemBags from the supporting rod:

Carefully turn the ChemBags upside down, without folding the ChemBags or

tubes.

4 Remove the front cover of the measuring unit.

5 Using one hand, grip the handle at the upper edge of the front cover of

the measuring unit.

6 Pull the front cover of the measuring unit somewhat to the front against

the resistance.

7 Carefully take the front cover out to the front.

Put the front cover down in a clean place.

8 Guide all tubes of the ChemBags over the tube fasteners above the

locking device and fix the tubes in tube fasteners.

9 Remove all ChemBags from the supporting rod one after the other and

turn the ChemBags so the valves point upward.

Suspend the tubes of the empty ChemBags from the tube grooves at

the photometer unit so that the ChemBags are suspended downwards

from the tubes.

Place the ChemBags down with the connectors pointing upward.

Maintenance and cleaning Alyza IQ PO4

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figure 5-19 ChemBags removed from the supporting rod

10 Switch off all filtration pumps (STOP).

11 Switch off the 24 V power supply at the switch box.

If the filtration pumps have already been in operation, sample liquid

may escape when the tubes and liquid lines are unscrewed. Provide

a collecting container in such a case.

12 Unscrew the sample tubes from the overflow vessels.

13 Protect the sample tubes against loss of liquids and against the pene-

tration of dust and dirt (e.g. with rubber plugs or absorbent paper).

14 Keep some absorbent paper ready to absorb small quantities of leaked

liquids at the MultiPort valve.

15 Open the locking device of the MultiPort valve.

When the locking device is open, there is the risk of leaking chemicals.

16 Immediately place the absorbent paper onto the MultiPort valve.

17 Wait until the liquids have run back into the ChemBags.

18 Close the locking device of the MultiPort valve to absorb leaked liquids

with the absorbent paper.

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5.10 SystemCheck

The SystemCheck function automatically checks whether the Alyza IQ is oper-

able. It also brings the MultiPort Valve (MPV) into a defined basic state.

The SystemCheck function is carried out regularly prior to every automatic cali-

bration. You can start the SystemCheck function also manually (Alyza menu, tab

Maintenance / SystemCheck).

If a component approaches a critical state, information messages with preven-

figure 5-20 Absorbent paper in the receptacle of the MultiPort valve

19 Open the locking device of the MultiPort valve.

20 Remove the absorbent paper.

21 Remove any remains of chemicals immediately.

22 Unscrew the tube couplings from the ChemBag connectors.

23 Close the ChemBag connectors with the yellow protection caps.

24 Store the ChemBags and secure them against being damaged.

25 Now carry out further actions, e.g.

 Cleaning

 Troubleshooting

 Exchanging components

(see section 5.5 Installing / exchanging the ChemBags, MPV, tubes,

 111)

 Transport, storage

(see section 6.3 Transport, storage,  159)

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tive maintenance instructions are issued.

Component Explanation

Photometer LED  Function check of the LED of the photometer

MPV detected  Checking whether the serial number of the

MultiPort valve (MPV) can be read.

MPV initialized  Aligning the MultiPort valve (MPV) to a defined

basic position

Syringe pump SP1  Checking whether the syringe pump can cre-

ate the required pressure

Valve V2  Checking whether a pressure applied to the

valve is maintained (tightness of the valve)

 Checking whether the applied pressure

decreases when the valve is open (permeabil-

ity of the valve).

Pressure sensor PS1  Checking whether the pressure sensor (at

atmospheric pressure) delivers a value in the

valid range

MPV tightness  Checking whether the MultiPort Valve (MPV)

can maintain the applied pressure

Air condition  Testing whether all elements for air-condition-

ing (heating elements, cooling elements, fans)

are working

If an error occurs during the check of a component, the System-

Check function is canceled and an error message is created.

No following checks will be performed.

Eliminate the error and then start the SystemCheck function manu-

ally to check the success of the maintenance (Alyza menu, tab Main-

tenance / SystemCheck).

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6 Maintenance and cleaning (complex activi-

ties)

Decommission the Alyza IQ prior to carrying out one of the following activities:

 Dismounting the measuring unit

(e.g. for complex maintenance activities in the measuring unit)

 Transporting the Alyza IQ

Read the chapter 2 Safety instructions,  22 before doing any maintenance

work. This is important for your personal safety.

NOTE

The interior of the measuring unit is temperature-controlled to 20 °C (68 °F).

With ambient temperatures over 25 °C (77 °F) and high air humidity, condensa-

tion water may develop on the cool surfaces and cause damage when the mea-

suring unit is opened.

To avoid damage to the measuring unit due to the formation of condensation

water, always wait for the temperature adjustment (function Prepare to open

measuring unit) to be completed before opening the measuring unit.

6.1 Decommissioning

6.1.1 Preparing the decommissioning

Starting the

maintenance

routine of the

Alyza IQ

For all activities at the open measuring unit:

 Note the environmental conditions (see section 3.3.1 Require-

ments of the measurement location,  27).

 With low ambient temperatures, make sure that the liquids do not

freeze while the maintenance activities are carried out. Leave the

housing open for as short a time as possible.

 Open the outer housing door far enough so the arrestable brake-

stay catches.

 Open the inner housing door far enough so that it touches the

outer door. Tilt the angular sheet (at the inside of the outer door)

over the upper edge of the inside door.

1 In the measured value display, use < >< > to select the Alyza IQ.

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figure 6-1 Measured value display of the Alyza IQ (example Alyza IQ PO4)

2 Using the <C> key, switch to the Alyza menu.

3Using < >, switch to the Maintenance tab.

figure 6-2 Tab Maintenance (example Alyza IQ PO4)

4 Carry out the STOP Alyza IQ function to stop the running operation.

5 Confirm the function to stop the running operation.

The maintenance condition is automatically activated in the

IQ S

ENSORNET for the Alyza IQ.

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6.1.2 Decommissioning the measuring unit

1 Open the Manual maintenance menu.

2 Select the function, Prepare to open measuring unit.

Follow the instructions on the display.

The procedure starts the temperature adjustment of the measuring unit.

3 Drain the tubes (Maintenance /Manual maintenance / Drain the system

All).

Follow the instructions on the display until the emptying is complete.

4 Open the outer housing door far enough so the arrestable brake-stay

(on the lower right side of the housing) catches.

5 Open the inner housing door far enough so that it touches the outer

door. Tilt the angular sheet (at the inside of the outer door) over the

upper edge of the inside door.

The measuring unit is ready to be opened when the status LED of the

measuring unit lights up white.

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figure 6-3 Alyza IQ, housing open, variant with 2 channels

1 Switch box

2 24V switch (at the switch box)

3 2 plugs at the switch box

4 Sample tubes (2 channels)

5 Connection sample tube to overflow vessel 1

6 Connection sample feed tube to overflow vessel 1

(quick fastener)

7 Waste tube of the measuring unit

8 Fixation of the measuring unit to the cooling unit

9 Cooling unit

6 Switch off all filtration pumps (STOP).

7 Switch off the 24 V power supply at the switch box.

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WARNING

Dangerous chemicals.

Improper use of chemicals can cause damage to your

health.

Heed the following rules:

 Read the labels of the ChemBags and follow the safety

instructions

 Wear protective equipment (protective goggles, chemi-

cal resistant gloves)

If the filtration pumps have already been in operation, sample liquid

may escape when the tubes and liquid lines are unscrewed. Provide

a collecting container in such a case.

8 Put on your personal protective equipment (PPE) and chemical resis-

tant gloves (see section 2.4 Personal protective equipment (PPE),

 24).

9 Provide a collection container for the contents of the overflow vessel

below the connection for the sample tube.

10 Unscrew the sample tube from the overflow vessel.

To do so, use the special tool in the base of the measuring unit.

The liquid exits the overflow vessel from the connection of the sample

tube to the overflow vessel.

11 Drain the contents of the overflow vessel into the collection container

provided. A rest of sample (approx. 3 ml) remains in the overflow vessel.

12 For Alyza IQ variants with 2 channels:

Repeat steps 9 - 11 for the second overflow vessel.

13 Pull the waste tube of the measuring unit out of the collection funnel.

14 Secure the waste tube against leakage of liquids (e.g. with rubber stop-

per or absorbent paper).

15 Now carry out the intended maintenance activities, such as:

 Dismount the measuring unit and carry out maintenance activities

(see section 6.2 Complex maintenance- and cleaning activities in the

measuring unit,  154)

 Prepare the Alyza IQ for storage or transport (see section

6.3.2 P

REPARING THE ALYZA IQ FOR TRANSPORT OR STORAGE).

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6.1.3 Decommissioning for transport or storage

6.2 Complex maintenance- and cleaning activities in the measur-

ing unit

For complex maintenance activities or cleaning activities in the measuring unit

we recommend that you dismount the measuring unit and transport it to a clean

laboratory environment.

When the measuring unit is dismounted, its parts are more easily accessible and

the environmental conditions (temperature, cleanliness) are more suitable for

complex maintenance activities or cleaning activities to be carried out.

1 Decommission the measuring unit (see section 6.1.2 D

ECOMMISSIONING

THE MEASURING UNIT).

2 Open the quick coupling of the sample feed tube at the overflow vessel.

3 Remove the remaining sample (approx. 3 ml) from the overflow vessel:

 Open the lid of the overflow vessel.

 Remove any remaining sample from the overflow vessel (e.g. using

a plastic pipette).

 Close the overflow vessel with the lid.

4 Empty the sample feed tube:

 Pull the filter module (FM/PC) out of the basin.

 Remove the intake line from the filter module (FM/PC)

(see operating manual of the filter module (FM/PC)).

 Protect the open connection and the open intake line against ingress

of dirt.

 Put the sample feed tube into the collecting container and secure it.

 Switch on the filtration pump. Operate the filtration pump until the liq-

uid residues are displaced from the sample feed tube.

 Switch off the filtration pump (STOP).

 Protect the filter module against drying out (see operating manual for

the filter module FM/PC).

5 Then re-connect the sample feed tube to the overflow vessel.

6 For Alyza IQ variants with 2 channels:

Repeat steps 2 - 5 for the second overflow vessel.

7 Transport or store the Alyza IQ

(see section 6.3 Transport, storage,  159).

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6.2.1 Dismounting the measuring unit

1 Decommission the measuring unit of the Alyza IQ (see section 6.1

Decommissioning,  149).

2 Secure the waste tube against leakage of liquids (e.g. with a rubber

stopper or absorbent paper).

3 Check the collection tray for moisture.

In case of larger amounts of moisture:

Dry the collection tray before removing it (see section 5.5.6 Check the

collection tray under the ChemBags for liquids,  119).

4 Unscrew the 2 fixing screws of the cover lid of the control unit ACM and

remove the cover lid of the ACM.

5 Unplug the 4 cables of the measuring unit from the control unit ACM and

let them hang to the front over the measuring unit.

figure 6-4 Fixing the measuring unit

1 Front cover of the measuring unit

2 Fixation of the measuring unit to the cooling unit

3 Cooling unit

6 Using one hand, grip the handle at the upper edge of the front cover (1)

of the measuring unit.

7 Pull the front cover of the measuring unit somewhat to the front against

the resistance.

8 Carefully take the front cover out to the front.

Put the front cover down in a clean place.

9 Check whether there is liquid in the collection tray under the ChemBags

(see section 5.5.6 Check the collection tray under the ChemBags for liq-

uids,  119).

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6.2.2 Carrying out complex maintenance activities

Carry out the maintenance- or cleaning activities at the dismounted measuring

unit, such as:

 Check the waste collector for coating and clean it (see section 6.2.3 Check

the waste collector for coating,  156)

Details on further complex maintenance activities are given in the relevant doc-

umentation of the spare parts, e.g.:

 Syringe body

 Tubes of the photometer unit

6.2.3 Check the waste collector for coating

NOTE

A deposit in the waste collector (e.g. lime deposit) can obstruct the drainage of

the liquids and cause damage due to overflowing liquids .

NOTE

Damaged tubes may leak.

Folded or knotted tubes hamper the transport of the liquids. The tubes must not

be damaged, folded or knotted.

10 Pull the fixation (2) of the measuring unit to the cooling unit out from

below.

11 Take the measuring unit up off the cooling unit and tilt it backwards.

Then remove the measuring unit from the housing of the Alyza IQ, to the

front.

12 Put the measuring unit down in a flat and clean place.

13 Protect the cables, tubes, and measuring unit against loss of liquids and

against the penetration of dust and dirt (e.g. with rubber plugs or absor-

bent paper).

14 Remove the cables hanging to the front of the measuring unit from the

grooves at the back cover and lay them down.

15 Carry out the maintenance activities in the measuring unit.

1 Dismounting the measuring unit (see section 6.2.1,  155)

2 Remove the ChemBags from the supporting rod (see section 5.5.5,

 118).

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3 Behind the ChemBags, unscrew the 2 screws for the rear cover of the

measuring unit.

figure 6-5 Measuring unit, dismantled and open

1 Two screws to fasten the rear cover

2 Locking device of the MultiPort valve (MPV)

3 Waste tube

4 Tilt the rear cover of the measuring unit away to the rear.

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figure 6-6 Lid of the waste collector with screw

1 Photometer

2 Photometer feed tube (yellow marking)

3 Lid of the waste collector with screw and 2 tubes

4 Empty supporting rod for ChemBags

5 MultiPort valve

The photometer feed tube (2) of the Alyza IQ PO4 is a sensitive

glass capillary. During the following steps, take care not to bend the

photometer feed tube (a sensitive glass capillary in the case of Alyza

IQ PO4) too much and thus damage it.

5 Loosen the screw on the lid (3) of the waste collector.

6 Pull the lid (3) of the waste collector with the two hoses upwards until

the bottom of the opened waste collector is visible.

7 Place the lid (with the two tubes plugged in) back onto the open waste

collector. The recess with the screw points to the rear.

8 Reinsert the rear cover of the measuring unit.

9 Reattach the rear cover with the 2 screws.

10 Hang the ChemBags back onto the supporting rod (see section 5.5.7,

 121).

11 Remount the measuring unit (see section 6.2.4,  159).

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6.2.4 Installing the measuring unit

6.3 Transport, storage

6.3.1 General notes

Please observe the allowed environmental conditions for transport and storage

of the Alyza IQ (see section 8.3 General data,  172).

Please not that no liquids or ChemBags may be in the Alyza IQ for storage and

transport.

NOTE

Inappropriate transport and inappropriate storage of the Alyza IQ (especially of

the measuring unit) can cause damage due to spilled liquids.

Safe transport and safe storage are only possible if the Alyza IQ is free from liq-

uids (tubes, photometer unit, overflow vessels empty; ChemBags removed).

1 Position the rear cover of the measuring unit at the measuring unit. Fix

it to the measuring unit by tightening the 2 screws.

2 Close the measuring unit with the front cover.

3 Press the cables of the measuring units into the grooves of the back

cover from the rear and let the plugs hang to the front.

4 Position the closed measuring unit on the cooling unit inside the housing

of the Alyza IQ.

5 Tilt the measuring unit slightly backwards and press it onto the cooling

unit.

The measuring unit must be tightly connected to the cooling unit so that

no moisture can penetrate.

6 Mount the measuring unit to the cooling unit (with the fixation of the

measuring unit).

7 Re-insert the waste tube into the collection funnel.

The liquid in the waste tube must be able to flow freely (steady slope,

no kinking, no damage).

8 Screw the sample tubes of the measuring units to the overflow vessels.

The sample tube for overflow vessel 2 is labeled red.

9 Re-plug the 4 data cables of the measuring unit to the ACM.

10 Re-plug the 2 power supply cables to the switch box.

11 Reinsert the cover in front of the ACM and fix it with the 2 screws.

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6.3.2 Preparing the Alyza IQ for transport or storage

Preparing the

measuring unit for

transport or

storage

Preparing the

basic instrument

for transport or

storage

Even minor damage to tubes or ChemBags due to mechanical

stress (e.g. pressure, shock etc.) or thermal impact (e.g. frozen liq-

uids) can cause consequential damage due to spilled liquids.

1 Decommission the Alyza IQ (see section 6.1 Decommissioning,  149)

2 Open the front cover of the measuring unit.

3 Remove all ChemBags from the supporting rod.

4 Remove the cover of the control unit ACM.

5 Unplug the 4 cables from the control unit ACM.

6 Close the measuring unit.

7 Fix the measuring unit in its position inside the housing of the Alyza IQ

with the 3 original transportation safety devices.

figure 6-7 Transportation safety devices

1 Control unit with connectors

2 Transport protector 1 in the front

3 Transport protector 2 in the front

4 Transport protector 3 in the background

5 Measuring unit

8 Switch the power line potential free.

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9 Remove the mounting plate (section 3.3.13 CONNECTING THE POWER

CABLE AND HEAT TRACING LINES).

WARNING

When the power supply box is open, there is a danger to

life from electric shock. Observe the following points:

 The power supply box may only be opened when it is

de-energized.

 The power supply box may only be opened by a quali-

fied electrician.

10 Open the power supply box (see section 3.3.13 C

ONNECTING THE

POWER CABLE AND HEAT TRACING LINES).

11 Disconnect the cables of the heat tracings.

12 Disassemble the liquid lines (with heat tracings):

 1 or 2 intake lines (with heat tracings)

 1 or 2 return lines (with heat tracings)

13 Close the power supply box (see section 3.3.13 C

ONNECTING THE

POWER CABLE AND HEAT TRACING LINES).

14 Reinstall the mounting plate (see section 3.3.13 C

ONNECTING THE

POWER CABLE AND HEAT TRACING LINES)

15 Close the openings at the bottom of the housing again with the cable

glands.

16 Close the doors of the Alyza IQ and secure the doors against inadver-

tent opening.

17 Disconnect the power line from the separator.

18 Disconnect the IQ S

ENSORNET cable of the Alyza IQ from the

IQ S

ENSORNET module.

19 With the terminal holder installed:

 Disconnect all IQ S

ENSORNET cables from the IQ SENSORNET mod-

ule.

 Remove the terminal holder (TM).

20 Secure the housing of the Alyza IQ against being damaged (e.g. by

shock, overturning, falling, sliding, etc.).

21 Check the condition of the Alyza IQ with the checklist for transport and

storage.

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Preparing the

ChemBags for

transport or

storage

Checklist

storage and

transport

6.4 Recommissioning the Alyza IQ

22 For transport, pack the ChemBags leakproof and protected against any

mechanical stress (e.g. shock, folding) and thermal impact (e.g. tem-

peratures too high or too low).

 Is the Alyza IQ prepared for transport or storage (see section 6.1

Decommissioning,  149)?

 Is the system empty (tubes, MultiPort valve, photometer unit) ?

 Are the overflow vessels empty?

 Were the ChemBags removed from the supporting rod?

 Is the measuring unit fixed inside the housing with the 3 original

transportation safety devices?

 Are the housing doors closed and secured against inadvertent open-

ing?

 Is the housing secured against shock, falling, overturning and slid-

ing?

23 Transport or store the Alyza IQ.

24 Always transport or store the ChemBags separately from the measuring

unit or housing of the Alyza IQ.

On recommissioning, the data of the last used components (measur-

ing unit, ChemBags) are automatically used again.

Installing any components with the Install wizard is only required if

other components should be installed.

1 For recommissioning, proceed in the same way as for the initial com-

missioning (see section 3 Commissioning,  25).

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7 What to do if ...

Display “----”

Information on the cause of the indication is in the log book and in

the Alyza menu / tab Status.

Cause Remedy

No (valid) measured value

available

Start measurement and wait for the mea-

surement to be finished (5 ... 7 min)

Three erroneous automatic

calibrations in succession

 Check the calibration standards

(e.g. expiry date)

 Check the connection of the calibration

standards

(for 1-point calibration the ChemBag at

connector 'S1' is always used.)

 Refill the tubes for the ChemBags with

standard solutions

Alyza menu / tab Maintenance / Manual

maintenance/Fill the system

 Carry out a cleaning cycle

Alyza menu / tab Maintenance / Manual

maintenance/Clean

 Exchange calibration standards

 Contact the service department

Status ERROR

The Alyza IQ is stopped

General proceeding

 View the details of the error

e.g. in the Alyza menu / tab Status (dis-

play details with <OK>)

View the log book message

 Reset the error:

(Alyza menu, tab Maintenance / Manual

maintenance / Reset errors)

 Remedy the error

 START Alyza IQ

 If the Status ERROR is still there:

Contact the service department

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Status ERROR

The liquids from one or sev-

eral ChemBags are not trans-

ported to the MultiPort valve

 View the log book message

 Check the filling level of the ChemBags

 Check the connection of the tubes

 Empty and refill the tube

Alyza menu / tab Maintenance / Manual

maintenance / Drain the system and Fill

the system

Status ERROR

Sample intake does not work

 Check the filtration pump

 Check and, if necessary, clean the filter

plate

 Switch on the filtration pump

 Clean the overflow vessel and intake

line

Status ERROR

The temperature in the mea-

suring unit or photometer unit

Alyza IQ is outside the allowed

range

(e.g. due to the air circulation

in the Alyza IQ being

impeded)

Measuring (automatically or manually) is

only possible if the operating temperature

in both the measuring unit and photometer

unit is in the allowed range.

 Check for contamination and, if neces-

sary, exchange the filter mats at the

housing (see section 5.7.2,  136)

 Check for contamination and, if neces-

sary, clean the bug screen

 Check for contamination and, if neces-

sary, clean the condensate drain

adapter

Cause Remedy

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Display of OFL

Status ERROR

Danger of condensation water

forming in the measuring unit

 View the details of the error

e.g. in the Alyza menu / tab Status (dis-

play details with <OK>)

View the log book message

 Start the dehumidifying program for the

measuring unit

Alyza menu/ tab Maintenance / Manual

maintenance /Dry the measuring unit

 START Alyza IQ

Power failure  In the Alyza menu (tab Maintenance),

start the Alyza IQ.

 If necessary, activate the function "Auto-

matic start after power failure“

Unknown See log book or Alyza menu / tab Status

(display details with <OK>)

Cause Remedy

Measuring range exceeded Select different measuring range

Calibration error  Check the calibration standards

(e.g. expiry date)

 Check the connection of the calibra-

tion standards

(for 1-point calibration the ChemBag

at connector S1 is always used.)

 Refill the tubes for the ChemBags with

standard solutions

Alyza menu / tab Maintenance / Man-

ual maintenance / Fill the system

 Carry out a cleaning cycle

Alyza menu / tab Maintenance / Man-

ual maintenance / Clean

 Exchange calibration standards

 Contact the service department

Measuring cell of the photometer

unit dirty

 Clean

Alyza menu / tab Maintenance / Man-

ual maintenance / Clean)

 Contact the service department

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Display of ERROR

Implausible

measured values

Cause Remedy

Alyza IQ is not properly con-

nected

Check the assignment of the terminal

connections

Communication between

Alyza IQ and IQ S

ENSORNET is

interrupted

Check the cable and connections

The electrical power supply of

the Alyza IQ is interrupted

 Check the power supply

 Check the maximum load

Cause Remedy

Erroneous measurement Wait for another measurement

Calibration error  Repeat calibration

 Check the calibration standards

 Check the connection of the calibra-

tion standards

(for 1-point calibration the ChemBag

at connector S1 is always used.)

 Refill the tubes for the ChemBags

with standard solutions

Alyza menu / tab Maintenance / Man-

ual maintenance / Fill the system

 Exchange calibration standards

 Increase the time between cleaning

and calibration.

Measured values always too

high after cleaning

Activate the function Conditioning

(menu Settings of sensors and diff. sen-

sors / Autom.cleaning).

After cleaning, a rinse is carried out for

each of the set number of steps and then

a rinse with the sample and the added

reagent.

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Measuring mode

cannot be set

Measuring cell of the photometer

unit dirty

 Carry out a cleaning cycle

Alyza menu / tab Maintenance / Man-

ual maintenance / Clean

 Contact the service department

Interferences

e.g. in sample matrix

 Activate the function Backgr.

corr.(opt).

PLEASE NOTE:

For the optimized background correc-

tion, an extra tube and an extra

ChemBag have to be installed (see

section 5 Maintenance and cleaning,

 101).

 Select suitable measuring location

Photometer unit draws in air (e.g.

air bubbles in the sample tube)

 Reduce the pump capacity of the fil-

tration pump (set to approx. 2 - 5 %).

 Check the screw couplings of the

tubes for tightness.

Cause Remedy

Alyza IQ is not stopped Stop the Alyza IQ

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Red signal LED at

the measuring unit

The system cannot

be emptied via the

Alyza menu

Storing the

detailed operating

data of the

Alyza IQ

Cause Remedy

LED lights up red.

Error causing the STOP of the

Alyza IQ

Check and, if necessary, eliminate the

error message in the log book

LED flashes red

A beep is to be heard.

 The front cover of the measuring unit

is open. There is risk of damage due

to the formation of condensation water

within the measuring unit. Close the

measuring unit immediately. After

being open for 3 minutes, the measur-

ing unit is automatically separated

from the power supply to avoid dam-

age due to a short-circuit on the PCB.

To open the measuring unit for main-

tenance activities without any risk:

– Before, start the function Prepare

to open measuring unit.

– Wait until the opening of he mea-

suring unit is released

 The locking device of the MultiPort

valve is open. There is a risk of dam-

age due to leaking chemicals (see

section 5.2,  102).

Cause Remedy

 Defective component, e.g.:

– Syringe pump

– MultiPort valve (MPV)

–ACM

–ACS

– Power supply module

– ...

 Empty the system manually (see

section 5.9 Emptying the system man-

ually,  144).

 Then exchange the defective compo-

nent.

 Contact the service department

Cause Remedy

e.g. request by service depart-

ment

Transmit the detailed operating data of

your Alyza IQ to a USB memory device

(see section 4.6.2,  97).

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Collection tray

under the

ChemBags is

moist

Cause Remedy

 ChemBag is leaking

 MPV is leaking

Empty the tray and dry it (e.g. with a

paper towel)

Caution, chemicals

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8 Technical data

8.1 Measuring characteristics PO4-P, PO4

Measuring method Vanadate molybdate method (yellow method) in combination with an LED pho-

tometer

Measuring ranges

and resolution

All specifications concerning the measuring accuracy refer to the use of suitable

standard solutions.

Response time t90 < 5min

Process variation

coefficient

< ±2%

Detection limit

Mea-

suring

range

Measuring

mode (cita-

tion form)

Measuring ranges Reso-

lution

Accuracy

1 PO4-P 0.02 ... 15.00 mg/L

0.02 ... 15.00 ppm

0.6 ... 480.0 umol/L

0.01

0.1

±2 % , ±0.02

±2 % , ±0.6

PO4 0.06 ... 46.00 mg/L

0.06 ... 46.00 ppm

0.6 ... 480.0 umol/L

0.01

0.1

±2 % , ±0.06

±2 % , ±0.6

2 PO4-P 0.2 ... 50.0 mg/L

0.2 ... 50.0 ppm

6 ... 1600 umol/L

0.05

±2 % , ±0.2

±2 % , ±6

PO4 0.6 ... 153.0 mg/L

0.6 ... 153.0 ppm

6 ... 1600 umol/L

0.05

±2 % , ±0.6

±2 % , ±6

The display ranges are extended to 0.00 each at the lower measur-

ing range limits.

Measuring

range

Detection limit

1 ≤ 0.02 mg/L PO4-P

2 ≤ 0.05 mg/L PO4-P

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8.2 Application conditions

Suitability and

areas of

application

The Alyza IQ analyzer is designed for online measurements of the orthophos-

phate concentration (PO4) in aqueous samples (e.g. in the effluents of waste

water treatment plants), and to control and regulate the elimination of phospho-

rus in waste water treatment plants.

Requirements of

the measuring

medium (by the

measuring unit)

The FM/PC can be used if the test sample meets the following requirements.

Requirements of

the test sample

(by the filtration

system)

Temperature +4 … +45 °C (+39 … +113°F)

pH value 5…9

Solids contents 0 (max. particle size: 0.45 µm)

Bacteria 0 (as far as possible, free from bacteria)

Air bubbles 0 (as far as possible, free from air bubbles)

Required flow rate Volume surge of the sample in the overflow vessel: < 1

ml/surge or,

with quasi continuous supply:

Volume flow of the sample in the overflow vessel:

1 ... 25 ml/min

Hardness Total hardness < 3.5 mmol/l (20 °dH)

The requirements of the test sample are met by using the FM/PC fil-

ter module available as an accessory.

Temperature +4 … +45 °C (+39 … +113°F)

pH value 5…9

Solids contents < 6 g/l

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8.3 General data

Dimensions and

weight

figure 8-1 Dimension drawing of Alyza IQ housing (dimensions in mm)

Component Height x width x depth Weight (without chemicals)

Housing with

components

825 x 675 x 445 mm up to approx. 50 kg

(depending on equipment)

675 445

775

approx. 500

540

approx. 200

Space to open the lid

Lid

Access to lid screws

from both sides

Opening angle

180 °

Front view:

Required space

Lateral view:

Space for

- connections

- ventilation

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figure 8-2 Dimension drawing of Alyza IQ, installation on a mounting stand (dimensions in mm)

figure 8-3 Dimension drawing of Alyza IQ, rail mounting (dimensions in mm)

Connection

technique

Connection to the IQ SENSORNET with the IQ SENSORNET cable

~ 20-50

710 810

1850

332

721

657

650

344

1050

~ 500

721

657

650

344

1050

1850

Height is variable

Rail pipe diameter

max. 50 mm

Technical data Alyza IQ PO4

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Ambient

conditions

Components

Temperature range

 Mounting/installation/

maintenance

+ 5 ... + 40 °C (+ 41 ... +104 °F)

 Operation - 20 … + 40 °C ( - 4 … + 104 °F)

 Storage - 20 …+ 50 °C (- 4 … + 122 °F)

(in completely empty condition)

Relative air humidity Max. 95 % (noncondensing)

 Mounting/installation/

maintenance

≤ 80 %

 Yearly average ≤ 90 %

 Dew formation Possible

Environment non-corrosive, non-saline.

Operation in a moist, saline atmosphere (e.g.

near the sea) can lead to corrosion of metallic

components.

Measuring location Indoors and outdoors

 Site altitude Max. 4000 m above sea level

 Level of contamination 2

Chloride concentration < 500 mg/l (no sea water)

Housing Sunlight (UV) resistant

Material: powder-coated aluminium

Mounting plate: PVC

Housing of the measuring

unit

EPP foam

Cable glands at the base

plate

M40 x 1.5 (black, large):

Clamping range 19 - 28 mm

M20 x 1.5 (black, small):

Clamping range 6.5 - 12 mm

Overflow vessel Material: PMMA

Required sample quantity:

1... 25 ml/min

For correct measurements, enough sample

must always be available in the overflow ves-

sel.

Temperature control Heating, cooling, ventilation

Alyza IQ PO4 Technical data

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Accessories

Meter safety

Test certificates CE, cETLus

8.4 Electrical data

Light source for photome-

ter

LED, 400 nm (violet)

MultiPort valve (MPV) Material: PMMA, fluoroplastic, aluminum

Mounting stand, wall

mount and rail mount

Rails: Stainless steel V2A,

Screws etc.: stainless steel V2A, V4A

Filtration unit Membrane surface of the filter plate: 1300 cm

Cut-off limit: < 0.45 µm

Max. operating temperature: 45 °C (113 °F)

Max. suction height: 5 m

pH value: 2…11.5

Housing: PVC

Sleeve tube: PVC-reinforced PCV tube, trans-

parent, 24 x 3 mm

Intake line: PE 4 x 1 mm

Line length (intake line, return line): Max. 20 m

Applicable norms EN 61010-1

UL 61010-1

CAN/CSA C22.2#61010-1

Electromagnetic compati-

bility

EN 61326-1, EN 61326-2-3,

FCC 47 CFR Part 15

Type of protection (hous-

ing)

IP 54 (EN 60529)

Type of protection

(internal power supply box)

IP 67 (EN 60529)

Protective class I

Overvoltage category II

Input voltage 120 V / AC ±10% / 60 Hz

Fuse protection of the

building

16 A with ground fault circuit interrupter

Line power connection 3-pin, N/L /PE

Line cross-section of line

power connection

Europe: 1.5 ... 4.0 mm

USA: AWG 14 ... 12

Technical data Alyza IQ PO4

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8.5 Consumption data

The consumption of chemicals depends on the specified intervals and on the se-

lected measuring range.

Typical

consumption

values

Cable (requirements) Europe: IEC 60332-1-2

USA, Canada: UL 2556 VW-1

Details:

 Temperature resistant

in the range -20 °C…+80 °C

(-68 °C…+176 °F),

 Weather-resistant (year-round)

 Watertight (cable sheath)

 Copper wire

Power consumption

Alyza IQ

300 - 1600 W

(depending on the length of the heat tracing)

 Basic consumption 300 W

 Heat tracing, intake line

return line

16 W/m

(max. 80 m heat tracing allowed)

IQ S

ENSORNET cable

(SNCIQ, SNCIQ/UG,

SACIQ)

 Insulation ≥ 500 V

 Temperature resistant

in the range -20 °C…+80 °C

(-68 °C…+176 °F),

 Weather-resistant (year-round)

 Watertight (cable sheath)

Power delivery to the

IQ S

ENSORNET

max. 10 W

Solution Sufficient for

Reagent solution

R-PO4/1-1A/B (MR1)

R-PO4/1-2A/B (MR2)

Examples:

– 3 months (measuring interval 5 min-

utes)

(only MR1)

– 6 months (measuring interval 10 min-

utes)

Cleaning solution

C-PO4/1-1

6 months (daily cleaning)

Standard solution

S-PO4/1-0.0/-1.1/-1.10/-40

6 months (daily calibration)

Alyza IQ PO4 Lists

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9Lists

9.1 Explanation of the messages

This chapter contains a list of all message codes and the related message texts

that can occur in the log book of the IQ S

ENSORNET system for the Alyza IQ an-

alyzer.

The last three digits of the message code form the component code. It identifies

the component (active component) that caused the message:

Some error messages contain an internal error code, starting with "#".

9.1.1 Error messages

Information on the contents and structure of the log book and the

structure of the message code is given in the L

OG BOOK chapter of

the IQ S

ENSORNET system operating manual.

Module code Component

3D1 Alyza IQ PO4, channel 1

3D2 Alyza IQ PO4, channel 2

552 MIQ/Alyza (adapter ADA)

Message code Message text

EA1552 Meas. range exceeded or undercut

* Check process

* Select other meas. range

EA2552 Sensor temperature too high!

* Check process and application

EA3552 Sensor temperature too low!

* Check process and application

EAM552 Meas. range exceeded or undercut

* Check process

EC1552 Calibration error: Calibration standard could not be determined or is

not suitable for current measurement range. Alyza IQ is stopped.

* Check the current measurement range

* Check the calibration standard used

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178

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EI1552 Operational voltage too low

* Check installation and cable lengths, Follow installation instruc-

tions

* Power supply module(s) overloaded, add power supply module(s)

* Check terminal and module connections

* Defective components, replace components

EI2552 Operational voltage too low, no operation possible

* Check installation and cable lengths, Follow installation instruc-

tions

* Power supply module(s) overloaded, add power supply module(s)

* Check terminal and module connections

* Defective components,

replace components

EI3552 Operational voltage too low

* Check installation and cable lengths, Follow installation instruc-

tions

* Power supply module overloaded

* Check terminal and module connections

* Defective component, replace components

EI4552 Operational voltage too low, no operation possible

* Check installation and cable lengths, Follow installation instruc-

tions

* Power supply module overloaded

* Check terminal and module connections

* Defective component,

replace components

EI5552 The measuring unit is not compatible!

* Contact service

EIA552 Communication fault between MIQ/Alyza and ACM

* Check cable connections

* Check the power supply of the Alyza IQ

* Contact service

ES1552 Component hardware defective

* Contact service

ES2552 Component hardware defective xxx

* Contact service

ES3552 Danger of condensation water forming in the measuring unit. The

measuring unit is switched off.

* Dry the measuring unit

Message code Message text

Alyza IQ PO4 Lists

179

ba76201e09 12/2022

ES4552 'Ready to measure could not be established after 1 hour. Alyza IQ

was stopped.

* Check climate control

* Check/close doors, front cover of measuring unit.

* Check IQ logbook and info window

ES5552 Communication failure with ACS

* Check ACS connection

ES6552 Pressure on port xxx too high.

* Check the liquid circle for erros and replace maintenance parts if

necessary.

ES7552 Dosing of xxx failed several times

* Make sure that tubes, ChemBags and couplings are free from air

bubbles.

ES8552 Error initializing MPV and syringe pump.

* Drain the system manually (see operating manual)

* Replace the MPV

* Contact service

ES9552 The locking device of the MPV is open. The Alyza IQ was stopped.

* Close the locking device of the MPV

ESA552 Error of photometer LED: The Alyza IQ was stopped.

* Contact service

ESB552 Error MPV: No MPV detected. The Alyza IQ was stopped.

* Install the MPV correctly (see operating manual)

* Contact service

ESC552 Error syringe pump: The Alyza IQ was stopped.

* Contact service

ESD552 Pressure xxx too high. The Alyza IQ was stopped.

* Contact service

ESE552 Error of valve V2: The Alyza IQ was stopped.

* Contact service

ESF552 Error pressure sensor PS1: Pressure sensor PS1 defective. The

Alyza IQ was stopped.

* Contact service

ESG552 Error MPV tightness: The Alyza IQ was stopped.

* Drain the system manually (see operating manual)

* Replace the MPV immediately via Alyza menu

ESH552 Error MPV tightness: The Alyza IQ was stopped.

* Drain the system via Alyza menu

* Replace the MPV immediately via Alyza menu

Message code Message text

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ESI552 Fehler MPV Dichtigkeit: Der Alyza IQ wurde gestoppt.

* Replace the MPV immediately via Alyza menu

ESJ552 ACS board cross changed!

* Contact service

ESK552 New ACS board, missing backup!

* Contact service

ESL552 ACS software too old, no restore to ACS board!

* Update software

ESM552 ACS backup error xxx

ESO552 Power output into IQ SensorNet too high

* Check installation and length, see installation instruction

* Power supply overloaded, add power supply

* Check clamping and modul connections

* Replace defective devices

ESP552 Error drive blockade MPV: The Alyza IQ was stopped. Syringe

pump locked.

* Drain the system manually (see operating manual)

* Contact service

ESQ552 Dosing of xxx failed several times. sample is missing.

* Check sample flow

ESR552 Error MPV-positioning: The Alyza IQ was stopped.

* Contact service

ESS552 'Climate control not fully functional!

* Indoor temperature sensor defective

* The Alyza IQ was stopped

* Attention: Emergency operation due to danger of frost!

* Contact service

EST552 'Climate control not fully functional!

* Temperature sensor of the measuring unit defective

* The Alyza IQ was stopped

* Contact service

ESU552 'Climate control not fully functional!

* Temperature sensor of the ACM control unit defective

* Caution: Danger of condensation when opening the measuring

unit!

* Contact service

ESV552 Heating photometer defective!

* Contact service

Message code Message text

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9.1.2 Informative messages

ESW552 Filling error: xxx

ESX552 Error MPV blocking: Alyza IQ was stopped. System was drained.

* Check MPV and piping to syringe pump

* Contact service

ESY552 Error MPV blocking: Alyza IQ was stopped.

* Drain the system manually (see operating manual)

* Check MPV and piping to syringe pump

* Contact service

Message code Message text

IA1552 Please check the remaining times of the ChemBags.

IA2552 Permissible internal temperature of the basic unit has been under-

shot! Acute danger of frost!

* Observe permissible outside temperature for operation

* Keep doors closed

* Check heater basic unit for blocking

* In case of defect: Contact Service

IA3552 Permissible internal temperature of basic unit has been exceeded!

* Keep doors closed

* Check fan grille for blockage

* Observe permissible outside temperature for operation

* In case of defect: Contact Service

IC2552 Sensor still successfully calibrated,

Calibration in limit range

* Service sensor as soon as possible

(see operating manual)

* View calibration history

* Check calibration conditions and calibration standard

IC7552 Calibration error: Calibration standard could not be determined or is

not suitable for current measurement range.

Calibration is rejected. Measurement will be continued with active

valid calibration!

* Check the current measurement range

* Check the calibration standard used

Lists Alyza IQ PO4

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IC8552 Calibration error: dosing or pressure error xxx.

Calibration is rejected. Measurement will be continued with active

valid calibration!

* Make sure that tubes, ChemBags and couplings are free from air

bubbles.

* Check the liquid circle for errors and replace maintenance parts if

necessary.

* Clean the liquid circle

IC9552 Cleaning error: dosing or pressure error xxx.

* Make sure that tubes, ChemBags and couplings are free from air

bubbles.

* Check the liquid circle for erros and replace maintenance parts if

necessary.

* Clean the liquid circle

II1552 Language not available,

Default language German

* Contact service

IS1552 The front cover of the measuring unit.is open. Danger of condensa-

tion water.

* Close the front cover of the measuring unit immediately

IS3552 MPV has been changed!

IS4552 Warning MPV tightness. MPV replacement recommended.

IS5552 ACS backup created!

IS6552 ACS backup restored!

IS7552 Missing USB flash drive or Alyza control file!

* Contact service

IS8552 Cell exchanged!

IS9552 Vtot determined!

ISA552 VPark determined!

ISB552 Alyza IQ has been reconfigured!

ISC552 Temperature control not working properly!

* Current interruption housing fan

* Contact service

ISD552 Temperature control not working properly!

* Housing fan

* Contact service

Message code Message text

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ISE552 Temperature control not working properly!

* Caution: frost danger if ambient temperature falls below 0°C

* Power interruption of housing heating

* Contact service

ISF552 Temperature control not working properly!

* Heating of the basic instrument

* Caution: frost danger if ambient temperature falls below 0°C

* Contact service

ISG552 Temperature control not working properly!

* Power interruption at the peltier element of cooling unit

* Contact service

ISH552 Temperature control not working properly!

* Peltier element of cooling unit

* Contact service

ISI552 Temperature control not working properly!

* Power interruption of outside fan peltier element

* Peltier element turned off

* Contact service

ISJ552 Temperature control not working properly!

* Outside fan peltier element

* Contact service

ISK552 Temperature control not working properly!

* Current interruption inside fan peltier element

* Peltier element turned off

* Contact service

ISL552 Temperature control not working properly!

* Inside fan peltier element

* Contact service

ISM552 Temperature control not working properly!

* Current interruption heating measure unit

* Contact service

ISN552 Temperature control not working properly!

* Heating of measuring

* Contact service

ISO552 Internal voltage implausible

* Contact service

ISP552 'Climate control not fully functional!

* Humidity measurement of the ACM control unit defective.

* Measurement is not affected.

* Attention: Opening the measuring unit can take decidedly longer.

* Contact service

Message code Message text

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ISQ552 Temperature control not working properly!

* Housing fan turned off

* Contact service

ISR552 Temperature control not working properly!

* Heating of the basic instrument turned off

* Caution: frost danger if ambient temperature falls below 0°C

* Contact service

ISS552 -

IST552 Temperature control not working properly!

* Peltier element of cooling unit turned off

* Contact service

ISU552 Temperature control not working properly!

* Outside fan and peltier element turned off

* Contact service

ISV552 Temperature control not working properly!

* Inside fan and peltier element turned off

* Contact service

ISW552 Temperature control not working properly!

* Heating of measuring unit turned off

* Contact service

Message code Message text

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9.2 Status info

The status info is a coded piece of information on the current status of a sensor.

Each sensor sends this status info to the controller. The status info of sensors

consists of 32 bits, each of which can have the value 0 or 1.

Status info,

general structure

The bits 0 - 15 are reserved for general information.

The bits 16 - 21 are reserved for internal service information.

You obtain the status info:

• via a manual query in the menu Settings/Service/List of all components (see

IQ S

ENSORNET system operating manual)

• by an automated query

• from a superordinate process control (e. g. when connected to the Pro-

fibus)

• from the IQ Data Server (see IQ S

ENSORNET Software Pack operating

manual)

The evaluation of the status info, e.g. in the case of an automated query, has to

be made individually for each bit.

Status info

Alyza IQ

01234567 89101112131415

1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 (general)

0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 (internal)

16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31

Status bit Explanation

Bit 0 Component hardware defective

Bit 1 ERROR

The Alyza IQ is stopped

Bit 2 Please check the remaining times of the ChemBags.

Bit 3 -

Bit 4 - 31 -

Disposal Alyza IQ PO4

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10 Disposal

Handle and dispose of all waste in compliance with local laws and regulations.

EU only: Correct disposal of this product — WEEE Directive on waste

electrical and electronic equipment

This marking on the product, accessories or literature indicates that the

product should not be disposed of with other waste at the end of its working

life.

To prevent possible harm to the environment or human health from uncon-

trolled waste disposal, please separate these items from other types of

waste and recycle them responsibly to promote the sustainable reuse of

material resources.

Waste from electrical and electronic equipment can be returned to the pro-

ducer or distributor.

EU only: Correct disposal of batteries in this product

This marking on the battery, manual or packaging indicates that the batter-

ies in this product should not be disposed of with other waste at the end of

its working life. Where marked, the chemical symbols Hg, Cd or Pb indicate

that the battery contains mercury, cadmium or lead above the reference lev-

els in Directive 2006/66/EC. If batteries are not properly disposed of, these

substances can cause harm to human health or the environment.

To protect natural resources and to promote material re-use, please sepa-

rate batteries from other types of waste and recycle them through your local,

free battery return system.

Alyza IQ PO4 Appendix

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11 Appendix

11.1 Glossary

Absorbance Logarithmic measure for the absorption of the sample; negative

decadic logarithm of the transmission.

Adjusting To manipulate a measuring system so that the relevant value (e. g. the

displayed value) differs as little as possible from the correct value or a

value that is regarded as correct, or that the difference remains within

the tolerance.

Blank value The blank value is the measured value of a measuring system if the

measured parameter has the value zero or is nonexistent. The blank

value has to be determined and subtracted from the measured values

of the actual samples.

Calibration Comparing the value from a measuring system (e. g. the displayed val-

ue) to the correct value or a value that is regarded as correct. Often,

this expression is also used when the measuring system is adjusted at

the same time. See «Adjusting».

Citation forms Different display formats that can be derived from each other of the

measured value for a concentration. The method for determining phos-

phate provides, for example, a measured value for phosphorous P.

This measured value can also be quoted in other citation forms such as

PO4, PO4-P or P2O5.

Concentration Mass or amount of a dissolved substance per volume, e. g. in g/L or

mol/L.

Deionized water Water that was freed of minerals with the aid of an ion exchanger. De-

ionized water may still contain uncharged contamination such as or-

ganic compounds. It is also called DI water.

Firmware The software permanently assigned to an instrument.

Ground fault circuit

interrupter

Earth leakage circuit breaker. An electrical assembly group that switch-

es off a circuit as soon as the strength of current in the phases does not

exactly agree with the strength of current in the neutral conductor. The

current difference can be caused by a grounded person inadvertently

touching a live part of the circuit.

LED Light emitting diode

Measured parameter The measured parameter is the physical dimension determined by

measuring, e. g. pH, conductivity or D.O. concentration.

Measured value The special value to be determined of a measured parameter. It is giv-

en as a combination of the numerical value and unit (e. g. 3 m; 0.5 s;

5.2 A; 373.15 K).

Appendix Alyza IQ PO4

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Measuring system A measuring system comprises all the devices used for measuring, e.

g. meter and sensor. In addition, there is the cable and possibly an am-

plifier, terminal box and armature.

MSDS Safety datasheets (Material Safety Data Sheets). Usually, the chemi-

cals manufacturers provide safety datasheet with the chemicals deliv-

ered. The safety datasheets provide security relevant information on

the substances delivered. MSDS can also be found on the Internet.

Operator Legal designation for the owner of the system. The operator is respon-

sible for the installed system, especially for the safety and training of

the staff.

pH value A measure of the acidic or basic effect of an aqueous solution. It corre-

sponds to the negative decadic logarithm of the molal hydrogen ions

activity divided by the unit of the molality. The practical pH value is the

value of a pH measurement.

PPE Personal protective equipment. The PPE includes clothing and other

equipment that is used to protect you against risks at your place of

work. You must always wear your PPE while doing dangerous jobs to

avoid injuries or damage to your health. Typical examples are gloves,

protective goggles, face protection shield, breathing protection, ear

protection, safety helmet, safety shoes, fall protection. The PPE must

fulfill the national standards and laws.

Reset Restoring the original condition of all settings of a measuring system.

Resistance Short name for the electrolytic resistivity. It corresponds to the recipro-

cal value of the electrical conductivity.

Resolution Smallest difference between two measured values that can be dis-

played by a meter.

Slope The slope of a linear calibration function.

Standard solution A solution whose measured value is known per definition. It is used to

calibrate a measuring system.

Test sample Designation of the test sample ready to be measured. Normally, a test

sample is made by processing the original sample. The test sample

and original sample are identical if the test sample was not processed.

Transmission The part of the light that goes through the sample.

Alyza IQ Contact Information

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12 Contact Information

12.1 Ordering & Technical Support

When placing an order please have the following information available:

12.2 Service Information

YSI has authorized service centers throughout the United States and

Internationally. For the nearest service center information, please visit

www.ysi.com

and click ‘Support’ or contact YSI Technical Support

directly at 800-897-4151.

When returning a product for service, include the Product Return form

with cleaning certification. The form must be completely filled out for an

YSI Service Center to accept the instrument for service. The Product

Return form may be downloaded at www.ysi.com

and clicking on the

‘Support‘ tab.

Telephone

: (800) 897-4151

(937) 767-7241

Monday through Friday, 8:00 AM to 5:00 PM ET

Fax

: (937) 767-1058

: [email protected]

Mail: YSI Incorporated

1725 Brannum Lane

Yellow Springs, OH 45387

USA

Internet

: www.ysi.com

- YSI account number (if available)

- Model number or brief description

- Quantity

- Name and Phone Number

- Billing and shipping address

- Purchase Order or Credit Card

Contact Information Alyza IQ

190

ba76201e09 12/2022

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For more information on how Xylem can help you, go to www.xyleminc.com

Xylem |' m|zīlə

YSI

1725 Brannum Lane

Yellow Springs, OH 45387

Tel: +1 937-767-7241; 800-765-4974

Fax: +1 937-767-1058

Email: [email protected]

Web: www.ysi.com