Specifications

Heated Flame Ionization Detector Analyzer Module
Rosemount Analytical NGA 2000
748414-A
August 1999
59
MAINTENANCE AND TROUBLESHOOTING
4
7. Verify auto-ignite parameters are properly set.
8. Verify burner is properly sealed.
9. Verify quality of air supply is good.
10. Verify quality of fuel supply is good.
11. Check burner tip for damage.
12. Check air and fuel restrictor for correct flow.
13. Check burner tip alignment.
14. Verify burner cone is tight.
15. Check burner air and fuel lines for leaks.
16. Verify oven temperature is greater than 85°C.
17. Verify the reference thermistor is 100K ohm ±15% at 25°C.
18. Verify that there is +10VDC to the reference thermistor.
4.3.3 D
RIFT
1. Verify that the sample, burner air, and fuel supply pressures are constant.
2. Check that the tubing, regulators, pumps, fittings, and valves are clean of
hydrocarbons.
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°C 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.