Tp 22: Shorted Temperature Sensor; Tp 23: Loss Of Oven Air - ABB PGC2000 Operation And Service Manual

5. If temperature probe is open, replace the temperature probe.
6. Close and tighten the Controller side door.

TP 22: SHORTED TEMPERATURE SENSOR

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. Remove power from analyzer.
2. Let all temperature zones cool to ambient.
3. Open the Controller side door.
4. Disconnect the sensor and measure its resistance value. The resistance of the temperature
probe should be approximately 440 ohms at 75°F (24°C). If shorted or considerable lower,
replace probe. The respective probes may be tested at the locations given below:
5. If temperature probe is shorted, replace the probe.
6. Close and tighten the Controller side door.

TP 23: LOSS OF OVEN AIR

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.
7-12
Temperature J48A
Zone Board Terminals
1
2
3
4
5
Temperature J48A
Zone Board Terminals
1 4 & 5
2 4 & 5
3 4 & 5
4 4 & 5
5 4 & 5
Assignment
4 & 5 Isothermal Oven
4 & 5 Programmed Temperature Oven
4 & 5 LSV
4 & 5 Detector
4 & 5 Methanizer/Air Cleanup
CAUTION
Assignment
Isothermal Oven
Programmed Temperature Oven
LSV
Detector
Methanizer/Air Cleanup
CAUTION
2000-OSM, F1