Installation; Transport And Storage; Unpacking; Installation Requirements - Grundfos AQC-D5 Installation And Operating Instructions Manual

8. Installation

8.1 Transport and storage

Transport the device carefully, do not drop!
Store in dry conditions between +5 °C and +40 °C.
Caution
Store the electrodes between -5 °C and +30 °C.
Keep protective caps moist with 3-molar potassium
chloride solution.

8.2 Unpacking

Caution
Do not allow any foreign bodies to enter!
• Check scope of delivery.
• Install as soon as possible after unpacking.

8.3 Installation requirements

If you do not observe the installation requirements,
Caution the device may be damaged!
The measurements may not be correct!
• The location must be vibration-free, dry, dust-free and free of
corrosive, pungent fumes or aggressive solvents.
• For safety reasons, the customer should install an earth
leakage circuit breaker for the measuring amplifier
®
Conex DIA and the motor of the measuring cell.
• Maximum permissible cable length between measuring cell
and measuring amplifier: 3 metres.
• Ensure a continuous supply of sample water.
• Retain the permissible inlet pressure and counter-pressure of
the sample water.
– Fit a pressure booster pump or pressure reducer, if
necessary.

8.4 Mounting

The flow armature is fastened onto the mounting plate from
factory.
The measuring cell breaks when the screws are
Caution
tightened! Do not tighten the screws; only screw
them in without tightening them!
The potentiostatic measuring cell or preassembled
Caution
system must be mounted vertically!
1. Drill four dowel holes with a diameter of 10 mm and minimum
60 mm deep. See section
6.2 Dimensional sketch / drilling
diagram.
2. Mount the mounting plate on the wall using the mounting
material provided. Distance between the mounting plate and
the wall: minimum 20 mm.
Do not pinch the cable! Always observe the
Caution
wall-mounting guide below.
Wall-mounting guide for AQC-D5 preassembled
Fig. 5
system

9. Commissioning

Note

9.1 Water connections

• Connect the sample water inlet and sample water outlet.
Caution
Fig. 6

9.2 Installation of electrodes

On top of the electrodes, coloured markings are provided for
easier assignment:
• potentiostatic electrode: green
• pH single-rod electrode: white
• redox electrode: brown.
20 mm
Warning
Switch off the power supply before installing.
Warning
The buffer solution must not come into contact with
the eyes or skin. Wear protective gloves and glasses
when performing the following steps!
The housing of the measuring cell must not come
into contact with the buffer solution. There is a risk of
corrosion and cloudiness.
To prevent a siphon effect, the sample water outlet
must flow freely downwards without
counter-pressure!
Water connections
9