pH 298, LF 298, Oxi 298, Cl 298
Installation
19
ba77196e03
07/2018
Oxygen sensor
Chlorine
measuring cell
3.8
Connections (relays, current outputs, Modbus)
3.8.1 General installation instructions
WARNING
If external electrical circuits that are subject to the danger of physical con-
tact are incorrectly connected to the relay contacts, there may be a danger
of life threatening electric shock. Electrical circuits are regarded to be sub-
ject to the danger of physical contact when there are voltages higher than
the Safety Extra Low Voltage (SELV).
Pay attention to the following points during installation:
Electrical circuits subject to the danger of physical contact must only
figure 3-6 Membrane-covered amperometric oxygen sensor
1 Cathode
2 Anode
X4
.
8
X4
.
9
X4
.
11
X4
.
10
1
2
figure 3-7 Measuring cell for disinfectant (chlorine)
-
+
X4
.
8
X4
.
9
X4
.
11
X4
.
10
Summary of Contents for CL 298
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