Grundfos AQC-D6 Installation And Operating Instructions Manual

AQC-D6

ClO

2

measuring cell / measuring module

Installation and operating instructions

GRUNDFOS INSTRUCTIONS

2

Table of contents

3

AQC-D6

English (GB)

Installation and operating instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

Deutsch (DE)

Montage- und Betriebsanleitung . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

Español (ES)

Instrucciones de instalación y funcionamiento. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30

Français (FR)

Notice d'installation et de fonctionnement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43

Italiano (IT)

Istruzioni di installazione e funzionamento. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 56

Nederlands (NL)

Installatie- en bedieningsinstructies . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 69

Polski (PL)

Instrukcja montażu i eksploatacji . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 82

Português (PT)

Instruções de instalação e funcionamento. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 95

Русский (RU)

Паспорт, Руководство по монтажу и эксплуатации . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 108

Declaration of conformity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 122

Declaration of conformity RU . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 123

English (GB)

4

English (GB) Installation and operating instructions

Original installation and operating instructions

CONTENTS

Page

1. Symbols used in this document

4

2. Device description

5

3. General information

5

4. Applications

5

5. Safety

5

5.1 Obligations of the owner/operations manager

5

5.2 Avoidance of danger

5

6. Technical data

6

6.1 General data on the AQC-D6

6

6.2 General data on the measuring module

6

6.3 Dimensional sketch / drilling diagram

7

7. Function

8

7.1 Description of the AQC-D6

8

7.2 Design of the measuring cell

8

7.3 Function of the AQC-D6

8

7.4 Design of the measuring module

9

7.5 Functional principle of measurement module

9

8. Installation

10

8.1 Transport and storage

10

8.2 Unpacking

10

8.3 Installation requirements

10

8.4 Installation

10

9. Commissioning

10

9.1 Water connections

10

9.2 Electrical connections

11

9.3 Preparing the measuring system

12

9.4 Starting up the measuring system

13

9.5 Starting up the measuring module

13

9.6 Basic settings

13

9.7 Calibration

14

10. Operation

14

10.1 Switching on

14

10.2 Operation

14

10.3 Interruptions

14

11. Fault finding

15

12. Maintenance

16

12.1 Functional check

16

12.2 Cleaning

16

13. Spare parts

16

14. Disposal

16

Warning

These complete installation and operating

instructions are also available on www.grundfos.com.

Prior to installation, read these installation and

operating instructions. Installation and operation

must comply with local regulations and accepted

codes of good practice.

Warning

If these safety instructions are not observed, it may

result in personal injury.

Caution

If these safety instructions are not observed, it may

result in malfunction or damage to the equipment.

Note

Notes or instructions that make the job easier and

ensure safe operation.

English (GB)

5

2. Device description

Fig. 1 AQC-D6 measuring cell

Fig. 2 Measuring module

3. General information

These installation and operating instructions contain all

information important for users of the AquaCell AQC-D6

measuring cells and the measuring module:

• technical data

• instructions for commissioning, use and maintenance

• safety information.

Should you require further information or should you encounter

problems that are not handled in sufficient depth in this manual,

please contact Grundfos.

We shall be pleased to support you with our comprehensive

know-how in the fields of measurement and control as well as

water treatment.

We always welcome suggestions on how to optimise our

installation and operating instructions to satisfy our customers.

4. Applications

The AQC-D6 measuring cells are used for measuring the

concentration of chlorine dioxide in water within the scope of the

potential applications described in this manual.

5. Safety

5.1 Obligations of the owner/operations manager

The owner/operations manager is responsible for:

• compliance with country-specific safety regulations

• training of operating personnel

• provision of prescribed protective gear

• implementation of regular maintenance.

5.2 Avoidance of danger

TM03 7147 0813TM03 7148 0813

Warning

Other applications are not approved and not

permitted. Grundfos cannot be held liable for any

damage resulting from incorrect use.

Warning

Installation and connection of the device and the

associated supplementary component must only be

carried out by authorised personnel.

Switch off the power supply before connecting the

power supply cable and relay contacts!

Do not dismantle the device!

Cleaning, maintenance and repairs must only be

carried out by authorised personnel!

The local safety regulations must be observed!

English (GB)

6

6. Technical data

6.1 General data on the AQC-D6

6.2 General data on the measuring module

6.2.1 Electrical data of the UPS 25-60N circulating pump

6.2.2 Factory settings of the measuring module as supplied

The bypass measuring module is fitted on the wall mounting plate

and tested for leaks. The fixing accessories supplied allow the

wall mounting plate to be attached to a solid brick or concrete

wall.

The connection cable of the circulating pump is not included in

the scope of delivery.

The circulating pump is preset to level 3.

Design

(measuring cells)

95708118 (314-181): Chlorine dioxide

measuring cell, consisting of a 95708117

(314-180) sensor, flow fitting and water

sensor, mounted on a plate

Housing material

PEEK, PVDF, acrylic, stainless steel and

silicone rubber, resistant to surfactants

and similar water additives

Measuring range 0.00 - 2.00 mg/l

Cross-sensitivity

Cross-sensitivity if chlorine is present:

approximately 2 %

Cross-sensitivity if chlorite is present:

<1%

Resolution 0.01 mg/l

Response time T

90

~ 30 seconds

Temperature drift

Temperature-compensated measuring

signal

Permissible

process water

temperature

+5 to +70 °C

Sample water flow

rate

Minimum 30 l/h

Maximum permitted

pressure

8 bar

Permissible

ambient

temperature

+5 to +35 °C

Maximum permitted

relative humidity

80 %, no condensation

Design

(measuring module)

95708029 (550-2000-1):

Measuring module, consisting of a

95708117 (314-180) sensor, flow fitting

and water sensor, sample water bypass

with feed and outlet line for the flow

fitting, spring-loaded taper seat check

valve, circulating pump for compensation

of any pressure drops that occur, as well

as stop valves at the input and output,

mounted on a plate

Material of the

measuring module

• Pipework: PP, PP/brass

• Gaskets: FPM/PTFE

• Circulating pump: bronze

Permissible process

water temperature

+5 to +70 °C

Sample water flow

rate

At least 30 l/h

Maximum permitted

pressure

8 bar

Permissible ambient

temperature

+5 to +35 °C

Maximum permitted

relative humidity

80 %, no condensation

Weight 15 kg

Measuring module

input / output

Connection for DN 20 pipe in PP or PVC

Supply voltage 230 V, single-phase

Frequency 50/60/70 Hz

Maximum power

consumption

50 W / 60 W / 70 W

Enclosure class IP44

English (GB)

7

6.3 Dimensional sketch / drilling diagram

Fig. 3 AQC-D6

Fig. 4 Measuring module

All dimensions in mm.

TM03 7149 0813

300

260

360

395

68

Ø 10

TM03 7150 0813

Height Width Depth

650 550 180

550

500

450

ø 10.5

DN20

65

430

650

English (GB)

8

7. Function

7.1 Description of the AQC-D6

Fig. 5 AQC-D6

7.2 Design of the measuring cell

Fig. 6 Measuring cell

7.3 Function of the AQC-D6

The AQC-D6 measuring cell is used to determine the chlorine

dioxide concentration in potable water.

Sample water is taken at a representative position and fed to the

measuring cell.

• The sample water flow rate can be adjusted on the flow fitting.

• A water sensor can, for example, be used to trigger an alarm

or to switch off the control functions if there is insufficient

sample water.

• The substance to be determined (ClO

2

) is measured on the

noble-metal electrode.

The material to be determined (ClO

2

) generates an electric

current:

• The electric current is in the µA range.

• The electric current is proportional to the concentration of the

ClO

2

parameter.

The measuring cell is controlled with a potentiostat integrated in

the measuring amplifier.

A precisely defined potential of the measuring electrode is

retained through a reference system. This results in a linear

response for the measuring cell as well as a stable zero point for

the measurement.

The measuring amplifier and regulator of the Oxiperm Pro

chlorine dioxide system:

• amplifies the current

• calculates it using the calibration parameters

• displays the chlorine dioxide concentration as a numerical

value

• controls a dosing pump as an actuator.

TM03 7151 0813

Pos. Description

1 Base plate

2 Flow fitting

3 Measuring cell

4 Connection for sample water outlet, hose 6/8 mm

5 Connection for sample water inlet, hose 6/8 mm

TM03 7152 0813

Pos. Description

1 Four-pole connection bush

2 Electrode adapter with integrated electronics

3 Reference electrode

4 Measuring electrode

5 O-ring 14 x 1.8 mm

6 Electrolyte chamber

7 Measurement opening

8Protection cap

1

2

3

5

4

1

2

3

4

5

6

7

8

English (GB)

9

7.4 Design of the measuring module

Fig. 7 AQC-D6

7.5 Functional principle of measurement module

The measuring module is used to feed sample water to the

AQC-D6 measuring cell for determining the chlorine dioxide

concentration in potable water. Please refer to section

7.3 Function of the AQC-D6. Here the sample water is taken from

the main water line using a bypass and then fed back.

The sample water is taken from the main water line (pos. 2)

using a extraction fitting (pos. 1), from where it flows through the

bypass and a feed fitting (pos. 7) back into the main water line

(pos. 2). The spring-loaded taper seat check valve (pos. 5)

prevents the sample water from flowing back. The stream of

sample water can be blocked off using the isolating valves

(pos. 10). The circulating pump (pos. 4) drives the stream of

sample water through the bypass. It is designed specifically for

compensating the internal pressure drops. The extraction and

feed line must therefore be kept as short as possible.

Sample water is then taken from this bypass via the sample water

extraction (pos. 6), from where it flows through the flow fitting

(pos. 3) to the measuring cell and is then fed back to the bypass

through the sample water recirculation fitting (pos. 8). To do this,

the throttle valve (pos. 9) restricts the flow of water in the bypass

until enough sample water flows through the sample water

extraction section (pos. 6) to the flow fitting / AQC-D6 (pos. 3)

measuring cell.

TM03 7153 0813

Pos. Description

1 Extraction fitting (supplied by the customer)

2 Main water line (supplied by the customer)

3 Flow fitting / AQC-D6 measuring cell

4 Circulating pump

5 Taper seat check valve

6 Sample water removal

7 Feed fitting (supplied by the customer)

8 Sample water recirculation

9 Throttle valve

10 Isolating valves

1

2

7

3

4

5

6

8

10

9

ø 10.5

English (GB)

10

8. Installation

8.1 Transport and storage

• Transport the device carefully, do not drop!

• Store the electrodes with electrolyte filling and protection cap

fitted.

• Store at a dry location, protected from direct sunlight.

– Storage temperature for measuring modules:

-5 °C to +50 °C.

8.2 Unpacking

• When unpacking, be aware of loose parts.

• Check the delivery to ensure that no parts are missing.

• Also check for transport damage. Never fit or connect any

damaged parts.

• Install as soon as possible after unpacking.

8.3 Installation requirements

• Ambient temperature of +5 to 35 °C at the installation site.

• Vibration-free location.

8.4 Installation

• The fixing accessories supplied include hanger bolts,

dowel pins, compression springs and nuts.

• Attach the AQC-D6 measuring cell or the measuring module to

a stone or concrete wall using the fixing accessories supplied.

Do not twist or distort the devices.

• Nuts may be attached behind the base plate to ensure that the

module is free from distortion when attached to an uneven

wall.

1. Mark the location of the boreholes, and then drill them

(∅10 mm). See section 6.3 Dimensional sketch / drilling

diagram.

2. Insert the dowel pins, and screw the AQC-D6 measuring cell

or the measuring module onto the wall.

9. Commissioning

9.1 Water connections

9.1.1 AQC-D6 water connections

Fig. 8 AQC-D6 with open water outlet

• Connect the sample water supply line (hose 6/8 mm).

• Connect the sample water drain line.

• Do one of the following:

– When a drain is available, connect (hose 6/8 mm) to a

suitable drain.

– Feed the fluid back to the pipework.

9.1.2 Measuring module water connections

The standard scope of delivery includes one PP and one PVC

insertion section each for the input and output of the measuring

module for connecting a pipe in DN 20.

When installing, do one of the following:

• Weld on a PP pipe.

• Glue on a PVC pipe (only suitable for cold water).

Note

Do not allow foreign bodies to enter any parts that

carry water.

Note

Retain the packing material or dispose of it according

to local regulations.

Note

The measuring module should be fitted as close as

possible to the main water line.

Caution

Always fit the AQC-D6 measuring cell or measuring

module on a flat and stable surface. Do not twist or

distort the base plate.

Caution

Observe the maximum permissible pressures and

temperatures for materials used! The measuring cell

must never be exposed to shock pressure. It can be

operated up to a maximum of 8 bar.

Caution

When selecting the supply and discharge conduits,

please observe their resistance against the

temperature and pressure occurring in your

application.

Note

For the best possible accuracy of the measured

value, keep the flow of sample water as constant as

possible.

Note

To keep the system short and prevent drops in

pressure, the connection lines to the measuring cell

or the measuring module should be kept as short as

possible.

TM03 7154 0813

English (GB)

11

9.2 Electrical connections

• Connect the cable with four-pole screw-on connection to the

measuring cell. Please refer to fig. 10.

9.2.1 Connecting the measuring cell to Oxiperm Pro

Fig. 9 Cable connection block on the base of the

Oxiperm Pro

1. Connect the measuring cell to Oxiperm Pro (connection 1).

2. Connect the power supply cable.

Connecting to the connection block of the Oxiperm Pro

up to software version V0.19

Fig. 10 Connecting to the connection block of the

Oxiperm Pro, up to software version V0.19

1. Connect any current output cables as required.

2. Connect any relay contacts as required.

Always observe the Oxiperm Pro installation and operating

instructions.

3. Connect the power supply cable.

Warning

Incorrect electrical connections can result in serious

injury and damage to property!

Electrical connections may only be set up by

authorised personnel!

Warning

Switch off the power supply before connecting the

power supply cable and the relay contacts!

Observe the local safety regulations!

Protect the cable connections and plugs against

corrosion and moisture.

Caution

Before connecting the power supply cable,

check that the supply voltage specified on the

nameplate corresponds to the local conditions.

An incorrect supply voltage may destroy the device!

To guarantee electromagnetic compatibility (EMC),

the input and current output cables must be

screened.

Connect the screening to the screen ground on one

side.

Refer to the wiring diagram!

Route the input, current output and power supply

cables in separate cable channels

TM03 7155 0813

Pos. Description

1 Power supply

7 Measuring cell

13.2 Water sensor

1

7

13.2

TM03 7156 0813

Pos. Connection Description

AQC-D6 measuring cell

65 - 12 V Brown

66 White

67 M Yellow

70 Green

Water sensor

55 + Black

56 - White

55 57 67 69

56 58 68 70

71

72

65

66

English (GB)

12

Connecting to the connection block of the Oxiperm Pro

from software version V0.20

Fig. 11 Connecting to the connection block of the

Oxiperm Pro, from software version V0.20

1. Connect any current output cables as required.

2. Connect any relay contacts as required.

Always observe the Oxiperm Pro installation and operating

instructions.

3. Connect the power supply cable.

9.2.2 Connecting the circulating pump

The circulating pump (asynchronous squirrel cage motor) on the

measuring module is powered directly by the power supply and is

not connected to the Oxiperm Pro control unit. It is equipped with

thermal overload or impedance protection, and therefore external

motor protection is not required. The required connected loads

are indicated on the nameplate of the circulating pump.

You will also find electrical data in section 6.2.1 Electrical data of

the UPS 25-60N circulating pump.

9.3 Preparing the measuring system

Please also observe section 10. Operation.

The measuring cell (pos. 3) is filled with electrolyte at delivery.

Prepare the flow fitting (pos. 2):

Loosen the stainless steel ring with 1" thread (pos. 1).

Fit the measuring cell (pos. 3) in the flow fitting (pos. 2).

1. Remove the protection cap.

2. Slide the measuring cell into the flow fitting until the liquid

flows well around it.

Tip: When fitted in its final position, the upper part of the

measuring cell should still project around 20 mm out of the flow

fitting.

3. Fix the measuring cell (pos. 3) in place using the stainless

steel ring (pos. 1).

TM04 0729 0813

Pos. Connection Description

AQC-D6 measuring cell

67 - 12 V Brown

68 White

69 M Yellow

72 Green

Water sensor

54 + Black

53 - White

53 55 57

54 56 58

67 69

68 70

71

72

Note

An on/off switch should be connected to the power

supply cable to allow the circulating pump to be

switched off during long measuring module

downtimes.

Caution

Dry running will damage the circulating pump!

The pump bearings are lubricated by the liquid

flowing through the pump, although the pressure

must be at least 0.05 bar (0.5 mWS).

Caution

Please observe the precise instructions in section

12.2 Cleaning!

Risk of incorrect measurement.

Note

The protection cap of the measuring cell is filled with

electrolyte!

Warning

A sudden failure of the measuring cell can lead to

excessive levels of chlorine dioxide! Make sure you

have suitable provisions in place for this!

English (GB)

13

Fig. 12 Flow fitting with measuring cell

9.4 Starting up the measuring system

First

1. Check that all electrical connections are connected properly.

2. Check the water connections.

Secondly

3. Start up the sample water supply. For versions with a

measuring module, please refer to section 9.5 Starting up the

measuring module.

4. The minimum sample water flow is around 30 l/h.

5. Switch on the power supply, or connect the electrode cable on

the measuring cell.

9.5 Starting up the measuring module

1. Open the isolating valve.

– Open all isolating valves between the measuring module

input/output and the main water line.

2. Switch on the circulating pump.

– The circulating pump is switched on separately, i.e. not via

the Oxiperm Pro control unit.

3. Deaerate the circulating pump.

– Unscrew the vent plug on the front of the motor.

– Deaerate for approximately 30 seconds.

– Screw the vent plug back in.

4. Set the flow rate through the flow fitting.

– Determine the flow rate in the flow fitting.

– Slowly close the throttle valve (turn the lever) until the

desired flow rate is reached.

9.6 Basic settings

Observe the Oxiperm Pro installation and operating instructions.

1. Use the [Up] and [Down] buttons on the measuring amplifier in

the "Setup" menu to select the "Measuring cell" line, and

press [OK] to access the corresponding menu.

2. Use the [Up] and [Down] buttons to select the desired

AQC-D6 measuring cell, and press [OK] to return to the

"Setup" menu.

3. Use the [Up] and [Down] buttons to select the "Measuring

ranges" line, and press [OK] to access the corresponding

menu.

• The following are available in the "Measuring ranges" menu:

– 0.00 - 0.50 mg/l

– 0.00 - 1.00 mg/l

– 0.00 - 2.00 mg/l

– Others: freely adjustable from 0.00 to 2.00 mg/l.

4. Use the [Up] and [Down] buttons to select the desired

measuring range.

– You can use the "Others" selection to freely set the

measuring range from 0.00 to 2.00 mg/l.

For further settings, please refer to the Oxiperm Pro installation

and operating instructions.

TM03 7157 0813

Pos. Description

1 Stainless steel ring

2 Flow fitting

3 Measuring cell

Note

1. Switch on the sample water supply.

2. Start the measurement.

Note

The measuring cell has a running-in period of around

one hour.

The first calibration cannot be performed until this

time has elapsed.

Check the calibration after about a day and,

if necessary, repeat the process!

1

2

3

Warning

Only authorised and qualified personnel may

commission the measuring module!

Check the installation before starting up the

measuring module!

Note

The pressure, temperature and water quality must

comply with the requirements of the measuring

module!

English (GB)

14

9.7 Calibration

Observe the Oxiperm Pro installation and operating instructions.

1. Press the [Cal] button on the measuring amplifier of the

Oxiperm Pro to switch to the calibration menu.

– The LED next to the [Cal] button lights up.

2. Enter the four-digit code number using the [Up] and [Down]

buttons based on the access rights assigned for the

Oxiperm Pro.

• The following are shown on the display for selection:

– Cal. meas. value

– Cal result

– Cal. cycle.

Calibration

1. Select the "Cal. meas. value" line, and switch to the menu of

the same name by pressing [OK].

• Besides the input field (value in mg/l) for the analytically

determined reference value, the actual cell current is

displayed in µA in the lower line.

2. Use the [Up] and [Down] buttons to enter the reference value,

and confirm using [OK].

3. Start the calibration by pressing [OK].

– The sensor data is then read automatically and the

calibration performed.

– The sensitivity of the sensor is calculated.

• As soon as calibration is complete, the calibration results are

displayed (first line: "CALDATA" + measured variable):

– The sensor sensitivity is shown as µA/ppm.

Inquiring about calibration results and setting calibration

intervals

1. Press [OK] to switch to the calibration menu (see above).

• Once the calibration process is complete, the sensitivity of the

electrode can be shown under "Cal results".

• A countdown function is started under "Cal cycle" which

triggers the alarm "Calibrate sensor" after a definable time

interval of 1-100 days.

– During calibration, the regulators are switched off and the

actuators closed to prevent overdosing.

10. Operation

10.1 Switching on

10.2 Operation

10.3 Interruptions

10.3.1 Storage and handling when not in use for a long

period of time

Taking the measuring module out of service in connection

with Oxiperm Pro

The following procedure must be followed:

1. Switch off dosing of the chlorine dioxide solution

(Oxiperm Pro).

2. Allow the measuring module to run for around two minutes.

3. Switch off the circulating pump.

4. Close the isolating valves on the measuring module.

Taking the AQC-D6 out of service

1. Switch off the power supply.

2. Switch off the sample water supply.

3. Remove the measuring cell, fill the protection cap with

electrolyte, and screw it onto the measuring cell.

10.3.2 Starting up again

1. Clean the electrolyte chamber and electrode.

2. Fill up with electrolyte.

3. Start up the measuring system again.

ClO

2

Cal. meas. value

Cal result

Cal. cycle

Cal. meas. value

0.2 mg/l

I cell 40 µA

CALDATA ClO

2

Sensitivity

8.53 µA/ppm

Note

1. Switch on the sample water supply.

2. Start the measurement

(switch on the Oxiperm Pro).

Note

All settings must be carried out on the Oxiperm Pro.

Observe the Oxiperm Pro installation and operating

instructions.

Caution

Oxiperm Pro and the measuring cell must be in

operation continuously!

The measuring cell must never be dry!

Caution

Clean the electrolyte chamber and electrode, and fill

up with electrolyte in accordance with the

instructions in section 12.2 Cleaning. Restart the unit

in accordance with the instructions given in section

9.4 Starting up the measuring system. Otherwise

there is a risk that the measuring cell will not work

properly!

English (GB)

15

11. Fault finding

Observe the Oxiperm Pro installation and operating instructions.

Fault Cause Remedy

1. Display frozen. a) Cable break. Rectify the cable break.

b) Calibration fault. Repeat the calibration.

c) Incorrect analysis values used for calibration. Repeat the calibration with correct values.

2. Measured value

fluctuating shortly after

calibration.

a) Measuring cell not allowed to run in correctly

before calibration.

Allow the cell to run in for one hour before

calibration.

3. Severely fluctuating

measured value.

a) Cable and/or connectors corroded. Replace the cable(s)/connector(s), and replace

the electrode, if necessary.

4. Measured value too high

or too low.

a) Air bubbles in electrolyte. Unscrew the electrolyte chamber, and remove

any air bubbles by carefully tapping the

electrolyte chamber.

b) Not enough electrolyte in electrolyte chamber. Unscrew the electrolyte chamber, fill up with

electrolyte and recalibrate.

c) Severe change in temperature of sample water. Recalibrate.

d) Deposits on electrode finger. Unscrew the electrolyte chamber. Rinse the

electrode finger, dry it with a dry paper towel,

and carefully clean just the tip of the electrode

finger with the special emery paper, then

recalibrate.

e) Air bubbles in front of measurement opening

(sample water side).

Check the water supply line.

Measuring module

5. Either no or not enough

sample water flowing

through measuring

module.

a) Main water line closed off. Open the main water line.

b) No sample water present. Check the sample water extraction point and

supply line.

c) Isolating valve on measuring module input and/or

output closed.

Open the isolating valve.

d) Circulating pump not functioning. Switch on the circulating pump.

e) Overheating protection of circulating pump has

been triggered.

Allow the circulating pump to cool off,

then switch it back on.

f) Circulating pump defective. Replace the circulating pump.

6. Not enough sample

water flowing through

flow fitting / AQC-D6

measuring cell.

a) Circulating pump not running. See above. See above.

b) Main current of the measuring module not

sufficiently throttled.

Throttle the main current more heavily using the

throttle valve until the sample water flow rate is

OK.

English (GB)

16

12. Maintenance

Interval for functional check

• At least once a week.

Interval for cleaning

• Whenever faults occur.

• Every 6 months.

Interval for replacing the electrolyte

• Every 6 months.

12.1 Functional check

Calibration check

• Recalibrate the measuring cell with an analytically determined

value at least once a week.

Observe section 9.7 Calibration and the Oxiperm Pro installation

and operating instructions.

Sample water flow check

• Check and, if necessary, adjust the sample water flow rate

through the measuring cell.

Functional check of the measuring module

• Check the bypass for leaks.

• Check the circulating pump for noisy operation.

12.2 Cleaning

To check the fill level of the electrolyte or clean the measuring cell

in the event of malfunctions, the electrolyte chamber must first be

unscrewed.

When cleaning, the following cleaning steps are performed in

sequence.

Please also refer to the measuring cell graphic in section

7.2 Design of the measuring cell.

12.2.1 Switching off the measuring cell

1. Switch off the power supply. If this is not possible, remove the

cable on the measuring cell.

2. Switch off the sample water supply.

12.2.2 Removing the measuring cell

1. Remove the measuring cell from the flow fitting.

12.2.3 Cleaning the electrolyte chamber

1. Unscrew the electrolyte chamber.

In the event of limescale deposits:

2. Soak the electrolyte chamber for a few hours in approximately

1 % hydrochloric acid until clean.

3. Rinse with clean water.

12.2.4 Cleaning the electrode

In the event of heavy soiling, the electrode must be cleaned.

1. Rinse the electrode finger (= measuring electrode) with clean

water, and then dry it with a clean paper towel.

2. Use the special emery paper provided to carefully clean the

gold tip of the dry electrode finger.

– Place the emery paper on a dry paper towel, and hold the

edge of the emery paper.

– Hold the measuring cell vertically, and then rub the tip of the

electrode carefully over the emery paper two or three times.

12.2.5 Filling up with electrolyte

1. Screw the electrolyte chamber onto the measuring cell so that

the socket of the electrolyte flange just fits into the gap

(approximately 5 mm).

2. Fill electrolyte right up to the overflow, making sure there are

no bubbles.

3. Screw on and tighten the electrolyte chamber by hand.

– There must not be any air bubbles in the electrolyte

chamber.

– The electrolyte is considered safe to handle.

12.2.6 Screwing on the measuring cell

Please refer to section 9.3 Preparing the measuring system.

12.2.7 Starting up the measuring system after it has been out

of service

Please refer to section 9.4 Starting up the measuring system.

• For details on recalibration, please refer to section

9.7 Calibration.

13. Spare parts

Accessories and wear parts

14. Disposal

This product or parts of it must be disposed of in an

environmentally sound way. Use appropriate waste collection

services. If this is not possible, contact the nearest Grundfos

company or service workshop.

Subject to alterations.

Caution

Always recalibrate the measuring system after

cleaning or maintenance has been performed!

Caution

The emery paper should only be used to clean the

precious metal tip (gold) on the electrode tip of

soiling. The remaining surface (metal coating) of the

electrode finger must not be sanded or removed!

Caution

Do not use any other kind of electrolyte! Damaging

the electrode by using the wrong kind of liquid voids

all warranty claims!

Description Product number

Measuring cell 95708117 (314-180)

Spare parts set, consisting of

electrolyte and emery

95708819 (553-1758)

Connecting cable for measuring

cell, 2 metres

91835331 (45.10124)

Connecting cable for measuring

cell, 5 metres

95708119 (45.10124/5)

Connecting cable for measuring

cell, 10 metres

95708120 (45.10124/10)

UPS 25-60N circulator pump 96913085 (53.650-1)

HD-PE hose 6/8 mm, 2 metres 95709109 (526-011/2)

HD-PE hose 6/8 mm, 5 metres 95709110 (526-011/5)

HD-PE hose 6/8 mm, 10 metres 95709108 (526-011/10)

Note

The measuring module and its associated parts must

be disposed of in an environmentally sound way!

The system may only be dismantled by authorised

and qualified personnel!

The operator is responsible for

environmentally-friendly disposal!

Deutsch (DE)

17

Deutsch (DE) Montage- und Betriebsanleitung

Übersetzung des englischen Originaldokuments

INHALTSVERZEICHNIS

Seite

1. Verwendete Symbole

17

2. Gerätebeschreibung

18

3. Allgemeine Hinweise

18

4. Verwendungszweck

18

5. Sicherheit

18

5.1 Verpflichtungen des Betreibers/Betriebsleiters

18

5.2 Gefahrenabwehr

18

6. Technische Daten

19

6.1 Allgemeine Daten der AQC-D6

19

6.2 Allgemeine Daten des Messmoduls

19

6.3 Maßzeichnung / Bohrbild

20

7. Funktion

21

7.1 Beschreibung der AQC-D6

21

7.2 Aufbau der Messzelle

21

7.3 Funktion der AQC-D6

21

7.4 Aufbau des Messmoduls

22

7.5 Funktionsprinzip des Messmoduls

22

8. Montage

23

8.1 Transport und Lagerung

23

8.2 Auspacken

23

8.3 Voraussetzungen zur Montage

23

8.4 Montage

23

9. Inbetriebnahme

23

9.1 Wasseranschlüsse

23

9.2 Elektrische Anschlüsse

24

9.3 Vorbereitung des Messsystems

25

9.4 Inbetriebnahme des Messsystems

26

9.5 Inbetriebnahme des Messmoduls

26

9.6 Grundeinstellungen

26

9.7 Kalibrierung

27

10. Betrieb

27

10.1 Einschalten

27

10.2 Betrieb

27

10.3 Unterbrechungen

27

11. Störungssuche

28

12. Wartung

29

12.1 Funktionsprüfung

29

12.2 Reinigung

29

13. Ersatzteile

29

14. Entsorgung

29

Warnung

Diese vollständige Montage- und Betriebsanleitung

ist auch verfügbar auf der Website www.grund-

fos.com.

Vor der Installation ist diese Montage- und Betriebs-

anleitung zu lesen. Die Installation und der Betrieb

müssen nach den örtlichen Vorschriften und den

Regeln der Technik erfolgen.

Warnung

Die Nichtbeachtung dieser Sicherheitshinweise kann

zu Personenschäden führen.

Achtung

Die Nichtbeachtung dieser Sicherheitshinweise kann

Fehlfunktionen oder Sachschäden zur Folge haben.

Hinweis

Hinweise oder Anweisungen, die die Arbeit erleich-

tern und einen sicheren Betrieb gewährleisten.

Deutsch (DE)

18

2. Gerätebeschreibung

Abb. 1 Messzelle AQC-D6

Abb. 2 Messmodul

3. Allgemeine Hinweise

Diese Montage- und Betriebsanleitung enthält alle Informationen,

die für Anwender der Messzellen AquaCell AQC-D6 und des

Messmoduls wichtig sind:

• Technische Daten

• Anweisungen zu Inbetriebnahme, Anwendung und Wartung

• Sicherheitshinweise.

Wünschen Sie weitere Informationen oder treten Probleme auf,

die in diesem Handbuch nicht ausführlich behandelt sind, wenden

Sie sich bitte direkt an Grundfos Water Treatment GmbH.

Wir freuen uns, Ihnen mit unserem umfangreichen Know-how in

Sachen Mess- und Regelungstechnik sowie beim Thema Was-

seraufbereitung zur Seite stehen zu können.

Zusätzliche Anregungen, wie wir unsere Montage- und Betriebs-

anleitungen noch kundenfreundlicher gestalten können, nehmen

wir jederzeit gern entgegen.

4. Verwendungszweck

Die Grundfos Messzellen AQC-D6 dienen zur Messung der

Chlordioxid-Konzentration in Wasser im Rahmen der in dieser

Anleitung beschriebenen potentiellen Anwendungsmöglichkeiten.

5. Sicherheit

5.1 Verpflichtungen des Betreibers/Betriebsleiters

Der Betreiber/Betriebsleiter ist verantwortlich für:

• die Einhaltung der landesspezifischen Sicherheitsvorschriften

• die Unterweisung des Bedienpersonals

• das Bereithalten der vorgeschriebenen Schutzausrüstung

• die Veranlassung regelmäßiger Wartung.

5.2 Gefahrenabwehr

TM03 7147 0813TM03 7148 0813

Warnung

Andere Verwendungen gelten als nicht bestim-

mungsgemäß und sind nicht zulässig.

Grundfos haftet nicht für Schäden, die durch fal-

schen Gebrauch entstehen.

Warnung

Installation und Anschluss des Gerätes und der

zugehörigen Zusatzkomponenten dürfen nur von

autorisiertem Fachpersonal durchgeführt werden.

Vor Anschließen des Stromkabels und der Relais-

kontakte Stromversorgung abschalten!

Gerät nicht öffnen!

Reinigung, Wartung und Reparaturen nur von autori-

siertem Fachpersonal durchführen lassen!

Alle örtlich geltenden Sicherheitsvorschriften sind

einzuhalten!

Deutsch (DE)

19

6. Technische Daten

6.1 Allgemeine Daten der AQC-D6

6.2 Allgemeine Daten des Messmoduls

6.2.1 Elektrische Daten der Umwälzpumpe UPS 25-60N

6.2.2 Werkseinstellungen des Messmoduls bei Lieferung

Das Bypass-Messmodul ist auf der Wandbefestigungsplatte mon-

tiert und dichtheitsgeprüft. Das mitgelieferte Befestigungsmaterial

dient der Anbringung der Wandbefestigungsplatte an einer mas-

siven Stein- oder Beton wand.

Im Lieferumfang nicht enthalten ist das Anschlusskabel der

Umwälzpumpe.

Die Umwälzpumpe ist auf Stufe 3 voreingestellt.

Aufbau

(Messzellen)

95708118 (314-181):

Chlordioxid-Messzelle, bestehend aus

Sensor 95708117 (314-180), Durchlaufar-

matur und Wassersensor, auf eine Platte

montiert

Gehäusewerkstoff

PEEK, PVDF, Acryl, Edelstahl und Sili-

kon-Gummi, resistent gegen Tenside und

vergleichbare Wasseradditive

Messbereich 0,00 - 2,00 mg/l

Quer-

empfindlichkeit

Querempfindlichkeit, wenn Chlor vorhan-

den ist: ca. 2 %

Querempfindlichkeit, wenn Chlorit vorhan-

den ist: < 1 %

Auflösung 0,01 mg/l

Ansprechzeit T

90

~ 30 Sekunden

Temperaturdrift Temperaturkompensiertes Messsignal

Zulässige Betriebs-

wassertemperatur

+5 °C bis +70 °C

Messwasser-

durchfluss

Mindestens 30 l/h

Maximal zulässiger

Druck

8 bar

Zulässige Umge-

bungstemperatur

+5 °C bis +35 °C

Maximal zulässige

relative Feuchtig-

keit

80 %, nicht kondensierend

Aufbau

(Messmodul)

95708029 (550-2000-1): Messmodul, be-

stehend aus Sensor 95708117 (314-180),

Durchlaufarmatur und Wassersensor,

Messwasserbypass mit Zugabe- und

Ablaufleitung für die Durchlaufarmatur,

federbelastetes Kegelrückschlagventil,

Umwälzpumpe zur Kompensation auftre-

tender Druckverluste sowie Absperrven-

tile an Eingang und Ausgang, auf einer

Platte montiert

Werkstoff des

Messmoduls

• Rohrsystem: PP, PP/Messing

• Dichtungen: FPM/PTFE

• Umwälzpumpe: Bronze

Zulässige Betriebs-

wassertemperatur

+5 °C bis +70 °C

Messwasser-

durchfluss

Mindestens 30 l/h

Maximal zulässiger

Druck

8 bar

Zulässige Umge-

bungstemperatur

+5 °C bis +35 °C

Maximal zulässige

relative Feuchtigkeit

80 %, nicht kondensierend

Gewicht 15 kg

Messmoduleingang /

-ausgang

Anschluss für DN 20-Rohr in PP oder PVC

Versorgungsspan-

nung

230 V, einphasig

Frequenz 50 Hz

Maximale Leis-

tungsaufnahme

50 W / 60 W / 70 W

Schutzart IP44

Deutsch (DE)

20

6.3 Maßzeichnung / Bohrbild

Abb. 3 AQC-D6

Abb. 4 Messmodul

Alle Maßangaben in mm.

TM03 7149 0813

300

260

360

395

68

Ø 10

TM03 7150 0813

Höhe Breite Tiefe

650 550 180

550

500

450

ø 10.5

DN20

65

430

650

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