Tp 40: Low Sample Flow Hardware Alarm; Tp 41: Programmed Temperature Oven Cool Down - ABB PGC2000 Operation And Service Manual

3. Disconnect oven carrier pressure switch at J23A terminals 1 and 2.
4. Connect ohmmeter leads between the two wires previously disconnected from J23A terminals 1
and 2.
5. Apply carrier pressure of at least 80 psi.
6. The switch contacts should close. Remove carrier pressure; switch contacts should open.
7. If switch does not function as described, remove carrier pressure and replace pressure switch.
8. If switch functions as described in step 7, but the alarm remains after the switch wiring has been
reconnected and carrier applied, replace Chroma I/O PCB.

TP 40: LOW SAMPLE FLOW HARDWARE ALARM

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.
1. Check to ensure that the sample flow has not been shut off. If so, restore sample flow.
2. Disconnect power to the analyzer.
3. Disconnect sample flow switch at J23E terminals 1 and 2.
4. Connect ohmmeter leads between these two wires.
5. With sample flowing, the switch should open. Stop sample flow and the switch should close.
6. If switch does not function as described, replace flow switch.
7. If switch functions as described in step 5, but the alarm remains after the switch wiring has been
reconnected and sample flow established, replace Chroma I/O PCB.

TP 41: PROGRAMMED TEMPERATURE OVEN COOL DOWN

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.
1. Stop Analysis at the end of this analysis cycle.
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CAUTION
CAUTION
2000-OSM, F1