Instruction manual

NGA 2000 HFID
Instruction Manual
HAS64E-IM-HW
September 2008
5 - 2 Troubleshooting Emerson Process Management GmbH & Co.OHG
c. Drift
1. Verify that the sample, burner air, and fuel supply
pressures are constant.
2. Check that the sample, burner air, and fuel
supply pressures are constant.
3. Verify that the oxygen level in the burner air and
sample are constant.
4. Verify the THC level is correct for the burner air
and fuel supply.
5. Check that the ambient temperature is changing
< 10 K per hour.
6. Verify the burner is clean.
7. Verify temperature of the sample gas, case,
burner, and oven has stabilized.
8. Verify the Preamp PCB is clean.
9. Verify atmospheric pressure at burner exhaust is
constant.
10. Verify purge gas pressure is constant.
11. Verify burner has been on and stabilized.
12. Check for gas leaks.
d. Noise
1. Check that the burner exhaust is free from water
condensation.
2. Verify connection to the collector is correct.
3. Verify connection to the polarizing voltage is
correct.
4. Check the ambient temperature is changing
< 10 K per hour.
5. Verify the + 24 VDC is clean and grounded
properly.
6. Verify there are no strong magnetic fields near.
7. Check for excessive vibration.
8. Verify burner exhaust is vented to a constant
atmospheric pressure.
9. Verify bypass line is vented to a constant
atmospheric pressure.
10. Verify purge out port vented to a constant
atmospheric pressure.
11. Verify the collector wires are routed away from
the heater.
12. Verify the collector wires are clean and not
damaged.