Tp 45: "Flame Out" Led Remains On After Fpd Flame Ignition - ABB PGC2000 Operation And Service Manual

TP 45: "FLAME OUT" LED REMAINS ON AFTER FPD FLAME IGNITION

It is the customer's responsibility to ensure that the area is safe and and hazard-
free, and will remain so the entire time the analyzer is open. This responsibility
includes ensuring adequate ventilation in analyzer shelter and obtaining proper
work permits, etc.
See "AIR PURGING" in Section 4 for the override function. Do not perform
override until you have read Section 4 completely and you understand and can
perform the procedure requirements.
Do not ignite the FPD flame if the isothermal oven temperature is below
operational level. Low oven temperature will result in condensation damage to the
flame cell.
1. Stop Analysis at the end of analysis cycle and make no sample injections until procedure is
completed.
2. Perform Test Procedure 1 (Carrier, Makeup, and Utility Gas Supplies) and Test Procedure 2
(Carrier and Makeup Gas Flow Adjustments), if not previously checked.
3. Remove power from the analyzer.
4. Open the door on the right side of the analyzer.
5. Locate the FPD Zone Board.
6. Disconnect the thermocouple wires connected to J49A terminals 1 and 2 on the Zone Board (see
Figure 7-14).
7. Connect an ohmmeter between the two thermocouple leads. The ohmmeter reading should
indicate continuity. If it does not, the thermocouple is open. Replace the thermocouple (see "FID
REPAIR/Replacing the Thermocouple Assembly" in Section 8).
8. Connect the ohmmeter between one of the thermocouple leads and chassis ground. The
resistance should be high. If it is not high, the thermocouple may be shorted to chassis ground.
Replace the thermocouple (see "FID REPAIR/Replacing the Thermocouple Assembly" in Section
8).
9. Reconnect the thermocouple wires.
10. Disconnect the thermocouple wires connected to J49A terminals 7 and 8 on the Zone Board.
2000-OSM, F1
CAUTION
Figure 7-14. FPD ZONE BOARD
J49A
7-39