Grundfos AQC-D6 Installation And Operating Instructions Manual Download Page 8

English (GB)

8

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).

9.1.3 Water sensor of the AQC-D6

1. Screw the water sensor into the thread all the way to the stop.
2. Secure with the PVDF ring.

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.

Note

The installation of the sample-water feed pipe must 
not contain any copper. Copper interferes with the 
measurement and can damage the electrodes.

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.

TM

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Summary of Contents for AQC-D6

Page 1: ...AQC D6 ClO2 measuring cell measuring module Installation and operating instructions GRUNDFOS INSTRUCTIONS...

Page 2: ...ation 8 9 Commissioning 8 9 1 Water connections 8 9 2 Electrical connections 9 9 3 Preparing the measuring system 10 9 4 Starting up the measuring system 11 9 5 Starting up the measuring module 11 9 6...

Page 3: ...s 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...

Page 4: ...esponse time T90 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...

Page 5: ...3 Dimensional sketch drilling diagram Fig 3 AQC D6 Fig 4 Measuring module All dimensions in mm TM06 8111 4616 300 260 360 395 58 10 TM06 8112 4616 Height Width Depth 650 550 180 550 500 450 10 5 DN20...

Page 6: ...er 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 resul...

Page 7: ...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 wate...

Page 8: ...nnect 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...

Page 9: ...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 regulati...

Page 10: ...pos 2 Loosen the PDVF 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 flow...

Page 11: ...tons 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 c...

Page 12: ...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...

Page 13: ...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...

Page 14: ...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...

Page 15: ...namento delle legislazioni degli Stati membri UE NL EU conformiteitsverklaring Wij Grundfos verklaren geheel onder eigen verantwoordelijkheid dat de producten AQC D11 AQC D12 AQC D13 AQC D6 waarop de...

Page 16: ...16...

Page 17: ...ia S r l Via Gran Sasso 4 I 20060 Truccazzano Milano Tel 39 02 95838112 Telefax 39 02 95309290 95838461 Japan GRUNDFOS Pumps K K 1 2 3 Shin Miyakoda Kita ku Hamamatsu 431 2103 Japan Phone 81 53 428 47...

Page 18: ...splayed in this material including but not limited to Grundfos the Grundfos logo and be think innovate are registered trademarks owned by The Grundfos Group All rights reserved 2019 Grundfos Holding A...

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