Tp 16: Fid Will Not Light; Tp 17: Verification Flame Is Ignited - ABB PGC2000 Operation And Service Manual

TP 16: FID WILL NOT LIGHT

Do not ignite the FID flame if the temperature is below operational level. Low oven
temperature will result in condensation damage to the flame cell.
1. Ensure burner air and burner fuel are adjusted to the values shown on application data sheets.
2. If flows and pressures cannot be adjusted, perform Test Procedure 31 (Plugged Jet or Breather)
to test for jet or air restriction.
3. Remove power and open the Controller front door. Locate Detector Amplifier on the left side wall
of the Controller and remove the six thumb nuts, cover, and plastic shield.
4. Turn power ON.
5. Connect AC voltmeter leads to TB16 terminals 3 and 4 on the Detector Amplifier.
6. On the Chroma Board screen, press the F4 (Manual Ignitor On) soft key to ignite the cell flame.
The meter should indicate 1.2 to 1.5 volts AC. If voltage is not present, the ignitor could be
shorted to ground, the auto ignite board could be defective, or wiring could be disconnected. If
the voltage is present, the defect could be an open ignitor coil.
7. Turn off the burner fuel to extinguish the FID flame and then remove power from the analyzer.
8. Disconnect the wires from TB16 terminals 3 and 4. Connect an ohmmeter between these two
wires to measure the resistance of the ignitor coil.
9. The resistance of the ignitor coil should measure 0.1 to 1 ohm. If an extremely high resistance is
measured, and the ignitor coil is open, replace the ignitor. See "FID REPAIR/Replacing the
Ignitor Assembly" in Section 8.
10. Connect the ohmmeter leads to one of the wires and chassis ground.
11. Measure the resistance of the ignitor coil to ground. If maximum ohms is not measured, the
ignitor is shorted to ground. Replace the ignitor (see "FID REPAIR/Replacing the Ignitor
Assembly" in Section 8).
12. Reconnect the ignitor wires to TB16 terminals 3 and 4.
13. If the ignitor coil was replaced, apply power to the analyzer. On the Chroma Board screen, press
the F4 (Manual Ignitor On) soft key. If the FID ignites, proceed to step 14.
14. If the ignitor is operating properly and no voltage is present between TB16 terminals 3 and 4
when step 11 is performed, replace the Detector Amplifier.
15. Remove power and replace the Detector Amplifier plastic shield, cover, and thumb nuts.
16. Close and tighten the Controller front door.

TP 17: VERIFICATION FLAME IS IGNITED

One of the primary products of combustion is water. Water vapor produced by the flame is
discharged from the FID/FPD vent. One way to verify the flame is ignited is to observe the
condensation of the water vapor.
7-8
CAUTION
2000-OSM, F1