Starting Up The Measuring System; Starting Up The Measuring Module; Basic Settings - Grundfos AQC-D6 Installation And Operating Instructions Manual

Fig. 12 Flow fitting with measuring cell
Pos. Description
1 Stainless steel ring
2 Flow fitting
3 Measuring cell

9.4 Starting up the measuring system

1. Switch on the sample water supply.
Note
2. Start the measurement.
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
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.
The measuring cell has a running-in period of around
one hour.
The first calibration cannot be performed until this
Note
time has elapsed.
Check the calibration after about a day and,
if necessary, repeat the process!

9.5 Starting up the measuring module

1
Note
1. Open the isolating valve.
2
– Open all isolating valves between the measuring module
3
2. Switch on the circulating pump.
– The circulating pump is switched on separately, i.e. not via
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

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.
9.5 Starting up the
4. Use the [Up] and [Down] buttons to select the desired
measuring range.
– You can use the "Others" selection to freely set the
For further settings, please refer to the Oxiperm Pro installation
and operating instructions.
Warning
Only authorised and qualified personnel may
commission the measuring module!
Check the installation before starting up the
measuring module!
The pressure, temperature and water quality must
comply with the requirements of the measuring
module!
input/output and the main water line.
the Oxiperm Pro control unit.
desired flow rate is reached.
measuring range from 0.00 to 2.00 mg/l.
13