12 SCC-C Sample Gas Cooler Operator’s Manual 42/23-55 EN Rev. 1
Electrical Line Connection
WARNING!
Follow all applicable national safety regulations for the preparation and
operation of electrical devices as well as the following safety precautions.
The sample gas cooler operating voltage must be set to match the line
voltage before the power supply is connected.
The protective lead should be attached to the protective lead connector
before any other connection is made.
The sample gas cooler can be hazardous if the protective lead is interrupted
inside or outside the sample gas cooler or if the protective lead is
disconnected.
You should route the signal lines separately from the power supply lines.
Connecting
Signal Lines
The signal lines (temperature monitoring status signal) should be connected in
accordance with the numbering of the wires (see Fig. 3).
Fig. 3
Signal Lines
2 C
3 NO
1 N
Connecting the
Sample Gas Cooler
to the Sample Gas
Feed Unit
In case the SCC-C sample gas cooler is used in conjunction with the SCC-F
sample gas feed unit, it is possible to connect the power supply and the tempera-
ture monitoring status signal (temperature alarm) of the sample gas cooler to the
sample gas feed unit.
If a temperature alarm occurs in the sample gas cooler the diaphragm pumps in
the sample gas feed unit are turned off.
Electrical connection of the sample gas cooler to the sample gas feed unit is
described in the SCC-F sample gas feed unit operator’s manual (publication no.
42/23-51 EN).
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