Maintenance and Troubleshooting | 5-53
c. Verify there is no clearance between the Heat Transfer Block and
the Cell RTD. The Measuring Cell must feel secure against the
Heater Plate. Gently push and pull on the Measuring Cell to verify
it is not loose.
If there is any movement, tighten the M4 x 25 screw again until the
Measuring Cell does not move, being careful not to over tighten it.
Over-tightening this screw will damage the threads on the RTD.
d. Replace the Heat Transfer Block Plug in the Heat Transfer Block.
19. Replace and connect all tubes to their respective connection points
inside the Oven – including any that run to connection points outside
the Oven.
Connect the Sample and Vent Lines to their connection points in the
Oven.
Ensure the sample tubing is connected to the Measuring Cell.
20. GP Analyzers Only:
Turn on the Instrument Air supply to the analyzer and open the
Aspirator Air valve.
21. Power up the analyzer:
It is necessary to work with the Electronics Enclosure door open after
replacing parts in the Heater Assembly.
When the analyzer’s covers and doors are open, take appropriate precau-
tions to avoid electrical shock. Hazardous voltages are present inside.
GP Analyzers:
Close the ASR Probe fuse and replace the Sample and Vent Line fuses.
Do not close the Oven Heater fuse at this time, until after the Leak
Check has been performed.
Close the Analyzer fuse to apply AC power to the analyzer.
!
WARNING
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