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11. Installation
11.1 Transport and storage
Transport unit carefully, do not throw, store in
dry conditions between –20 and +65 °C.
Caution
Store electrodes between –10 and +30 °C.
Keep protective caps moist with 3-molar
potassium chloride solution.
11.2 Unpacking
Caution
Do not allow any foreign bodies to enter!
•
Check scope of delivery.
•
Assemble as soon as possible following unpacking.
11.3 Installation requirements
Non-observance may result in damage or errors
Caution
in measurement!
•
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.
•
Maximum permissible cable length:
– Individual devices for AQC-D3 measuring cells: between
measuring cell and measuring amplifier or sensor interface:
3 m.
– Preassembled systems with Conex DIS, DIA or DIP as
wall-mounted unit: completely prewired.
– Preassembled systems with Conex DIA as control cabinet
unit: Distance between measuring amplifier and sensor
interface
100 m.
•
Ensure a continuous supply of sample water.
•
Install the measuring cell so that the line length of the sample
water feed is as short as possible in order to reduce the delay
time of the flow armature.
•
Retain the permissible inlet pressure and counter-pressure of
the sample water.
– Fit a pressure booster pump or pressure reducer, if
necessary.
11.4 Mounting
The flow armature is fastened to 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
Caution
preassembled system must be mounted
vertically!
Individual device for AQC-D3 measuring cells
1. Drill four dowel holes with a diameter of 10 mm and min.
60 mm deep. See section 10.4 Dimensional sketches / drilling
diagram.
2. Mount the measuring cell and the mounting plate on the wall
using the mounting material provided.
Fig. 8
Mounting of AQC-D3 measuring cell
Preassembled systems
1. Drill four dowel holes with a diameter of 10 mm and min.
60 mm deep. See section 10.4 Dimensional sketches / drilling
diagram.
2. Mount the preassembled system and the mounting plate on
the wall using the mounting material provided.
Distance between the mounting plate and the wall:
min. 20 mm.
Do not pinch the cable! Always observe the
Caution
mounting sequence below.
Fig. 9
Mounting sequence for preassembled systems
20 mm
13
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