GE CGA 351, User Manual

Page: 100 / 133

December 2004
5-22 Service and Maintenance
Replacing the Digital Panel
Meter
If the digital panel meter is defective, remove the defective meter by
completing the following steps:
Note:
For information regarding component locations and/or wiring
connections in an optional enclosure, see Appendix C.
1.
Disconnect the main power to the CGA 351.
!WARNING!
Failure to cut the main power at the external
disconnect device before proceeding will result in
serious personal injury.
2.
Remove the four sets of mounting hardware and remove the
electronics enclosure from its mounting surface.
3.
Remove the eight screws on the rear of the enclosure and lift the
mounting plate off the enclosure.
4.
Make a sketch of all wiring connections to the rear of the digital
panel meter, and then disconnect all the wiring.
5.
Remove the two mounting brackets and push the panel meter out
through the front of the enclosure. Remove the controller and
option cards from Slots 1 and 2, respectively.
Install the new meter by completing the following steps:
1.
Install the original controller and option cards into Slots 1 and 2,
respectively, of the new meter.
2.
Insert the new meter through the opening in the front of the
electronics enclosure and secure it in place with the two brackets.
3.
Reconnect all of the wires to the connectors on the rear of the new
digital panel meter.
4.
Place the mounting plate over the rear of the electronics enclosure
and secure it with the eight screws previously removed.
5.
Mount the electronics enclosure back onto the wall/panel and
secure it with the four sets of hardware previously removed.
6.
Reconnect the main power to the analyzer.
7.
Refer to Chapter 3, Operation , and Chapter 4, Setup and
Calibration , to reprogram the new digital panel meter.
The CGA 351 is now ready to be placed back into service.
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