142 User Manual QuickTOC
®
purity
ATEX 2 04E3920
8 Care and Maintenance
8.3 Care and Maintenance Tasks LAR | PROCESS ANALYSERS AG
screwdriver.
8.3.8 Check the Gas Cooler
The gas cooler is located in the lower part of the device behind the lower front panel.
1. Unscrew the connectors with hose connections (2) to remove the gas cooler glass tubes (1).
2. After all connections have been removed, the glass heat exchanger can be carefully pulled up out
of the guide.
3. After the heat exchanger or gas cooling tube has been pulled out of the cooler, the surface can be
cleaned with a soft paper towel.
4. Rinse the gas cooling tube from the inside with deionised Water. Use a laboratory vial filled with
deionized water or a disposable syringe. Rinse with deionised water in succession in the openings
of the heat exchanger. If there are still contaminants in the heat exchanger after this flushing
operation, a small bottle brush or pipe cleaner can be used for cleaning. If cleaning with
demineralized water is not sufficient, glass cleaning agents can also be used. If cleaning agent is
used, the gas cooling tube must be rinsed after cleaning with 200 ml of deionised water.
5. Dry the surfaces of the heat exchanger with a soft paper towel. The lateral hose connections of the
heat exchanger are dried using a pipe cleaner. For cleaning of the gas cooling tube, a damp cotton
cleaning cloth or a damp bottle brush can be used. The connectors of the gas cooler must not be
cleaned with sharp objects, as otherwise the transition surface from the cooler to the gas cooler will
be damaged.
6. Coat the outer surfaces of the gas cooling tube with silicon-free thermal compound.
7. Slide the gas cooling tube into the radiator receptacles.
8. Reconnect the hose connectors correctly.
Warning
Destruction of the reactor pipe filling
Never insert the drill or screwdriver deeper than 7 cm into the reactor tube.
Fig. 101: Manual cleaning of the reactor pipe with a drill bit
Warning
Warning about improper connection!
The analyser may give incorrect readings if the tubing of the gas cooling tube is re-
versed.
Mark the hoses before disassembling the gas cooler.
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