Air Cleanup Testing; Air Cleanup Final Preparation - ABB PGC2000 Operation And Service Manual

8. Connect the temperature sensor wires to terminals 1 through 6, as follows:
Overtemp Thermocouple:
Overtemp Thermocouple:
RTD sensor:
Shield (individual):
Composite Shield:
9. Close and secure the isothermal oven door, and the Controller front and side doors.

Air Cleanup Testing

1. Restore burner air to the cleanup unit by adjusting the burner air regulator for the correct burner
air pressure as indicated at the burner air pressure indicator.
2. If a methanizer is used, restore carrier gas by adjusting the carrier regulator for the correct carrier
pressure indication at the carrier pressure indicator.
3. Using a suitable liquid leak detection solution, test and repair any leaks that may be present in the
connections loosened or disconnected during the maintenance procedure.
4. Close the isothermal oven door and secure the latch.
5. Restore carrier gas, oven air and fuel gas, if necessary, by adjusting the regulators for the correct
indications at the pressure indicators.
6. After ensuring the area is safe, and the proper permits are in effect, apply AC power.
7. To check the temperature of the Methanizer/Air Cleanup Assembly, exit to the Background
screen by pressing the F1 soft key.
8. Access the Manual Control Mode screen by pressing the F2 (Manual Control) soft key.
9. Access the Pressure and Temperature Control Mode by pressing the F4 (Press. and Temp.
Control) soft key.
10. From the Pres and Temp Control screen, position the cursor up or down to highlight TEMP
CONTROL and press the F2 (Manual Temperature Control) soft key to access the Manual
Temperature Control Screen.
11. On the Manual Temperature Control screen observe the setpoint value. If necessary, change the
setpoint of the air cleanup/methanizer temperature controller to 450° C.
12. The temperature of the Methanizer/Air Cleanup Assembly can also be monitored from this
screen. The time required to achieve stability is two hours.
13. Press the F1 soft key as necessary to return to the Background screen.

Air Cleanup Final Preparation

1. Restore all utility gases and verify that the pressures and flow rates are correct. These include
oven air, purge air, carrier, burner fuel, and burner air. If the faces of the pressure gauges were
previously marked and the marked location is known to be correct, simply adjust the pressure
regulators until the gauge pointers are aligned with the pressure indicating marks. Refer to the
engineering data package supplied with your analyzer for the correct values.
8-38
yellow (+) to 1
red (-) to 2
4 and 5
3
6
2000-OSM, F1