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GAA610-M ADVANCED EMISSION GAS MONITORING SYSTEM | OI/GAA610-M-EN REV. B
... 13 Maintenance
Replacing the SCC-C
If there is a malfunction of the SCC-C, it may be necessary to
replace it. In the following, the individual points are described
step by step. Because this is a 1:1 exchange, no software
adjustments are required.
CAUTION
Risk of injury from electric shock
The SCC-C can be hazardous if the protective lead is
interrupted inside or outside the sample gas feed unit or if
the protective lead is disconnected.
•
Follow all applicable national safety regulations for the
installation and operation of electrical devices as well as
the following safety precautions.
•
The protective lead should be attached to the protective
lead connector before any other connection is made.
NOTICE
The sample gas cooler should always be transported and
stored with the gas ports up. Otherwise the oil in the
compressor circuit could leak from the compressor cap. The
sample gas cooler must stand in its operating position for
about 24 hours prior to commissioning.
Remove the old SCC-C
Figure 53: SCC-C cover screws
1. Switch off the entire system with the main switch.
2. Open the front cover plate by unscrewing the two screws
3. Disconnect the hose connections to the cooler (two on
top
4
, one on the front
4. Unscrew the four screws on the front that hold the cooler in
the housing.
5. Remove the four screws
four screws
6
on the right side of the cooler to disconnect
the connections. The two upper screws
also have to be unscrewed.
6. Carefully remove the cover and disconnect the PE connection
to it.
7. Check that the device is free of power.
(Voltage measurement at –X1)
8. Disconnect the cables at –X1 2,3,4 and –X4 1,2.
9. Remove the cables from the housing and remove the cooler.
3
).
5
on the top of the cooler and the
2
of the front panel
1
.
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