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10.5 Electrical connections
Warning
The electrical connection should be carried out by
qualified personnel!
Before connecting the supply cables, check that the
supply voltage specified on the nameplate
corresponds to the local conditions!
Before connecting the supply cables, switch off the
electricity supply!
Observe the local safety regulations!
Protect the cable connections and plugs against
corrosion and humidity.
Connect an earth leakage circuit breaker in front of
the measuring amplifier.
Preassembled systems
The preassembled systems are prewired.
1. Connect an earth leakage circuit breaker in front of the
measuring amplifier.
2. Connect the electricity supply to the measuring amplifier.
Observe the installation and operating instructions of
Caution
the measuring amplifier and controller!
AQC-D12 measuring cell
The cables are not preconnected. See section
Note
10.4 Preparing the electrode cable for connection to
the measuring
amplifier.
Observe the installation and operating instructions of
Caution
the measuring amplifier and controller!
1. Connect electrodes to the corresponding terminals of the
measuring amplifier.
2. Connect measuring electrodes to the corresponding terminals
of the measuring amplifier. Fit the screen according to the
installation and operating instructions of the measuring
amplifier and controller.
3. Connect the water sensor to the corresponding terminals of
the measuring amplifier.
4. Connect an earth leakage circuit breaker in front of the
measuring amplifier.
5. Connect the electricity supply to the measuring amplifier.
Before connecting the supply cables, check that the
supply voltage specified on the nameplate
Caution
corresponds to the local conditions!
Observe the installation and operating instructions of
the measuring amplifier and controller!
12
M B/RG/C
Pt 100
1
2
7
6
9
10
8
9
Sensorinterface
1/11 1/13 4/1
4/3
3/1 3/3
A
1/12 1/14
4/2 4/4
3/2 3/4
Fig. 18 Conex DIA-1 / DIA-2 / DIA-2Q for panel-mounting
15 17 19 21 23 25 27 29 31 33 35
20
16
22
24
26
28
30
32
34
36
18
1
4
1
4
6
9
10
12
11
9
Fig. 19 Conex DIA-1 / DIA-2 / DIA-2Q for wall-mounting
1
4
8
11
11
12
9
Conex
2/3 2/4
+
-
1
12
B
4
37 38 39 40 41 42
1
2
7
8
8
11
12
9
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