Specifications

748414-A
August 1999
58
Heated Flame Ionization Detector Analyzer Module
Rosemount Analytical NGA 2000
4
MAINTENANCE AND TROUBLESHOOTING
4.3 TROUBLESHOOTING CHECKLIST
4.3.1 S
AFETY
S
YSTEM
1. Verify purge supply pressure at bulkhead is between 10 and 20 psig.
2. Check case for leaks.
3. Check burner for leaks.
4. Verify purge pressure sensor tube connection.
5. Verify purge out port is vented to atmospheric pressure.
6. Verify Safety PCB connector J2 is attached.
7. Check for a +24V power glitch.
8. Verify that there is no large vibration shock.
9. Check for external leak in purge line.
10. Verify case pressure is greater than 0.5” of water.
11. Check case for over-pressurization.
12. Verify the purge flow/pressure switch harness is routed away from the solenoid valves.
13. Verify the purge timer is counting.
14. Verify purge timer jumper is correctly installed.
15. Verify Internal purge pressure is greater than 5.5 psig.
16. Verify the purge gas switch has been activated.
4.3.2 I
GNITION
1. Verify that the fuel pressure/flow is correct.
2. Verify that the burner air pressure/flow is correct.
3. Verify that the ignitor is generating enough heat.
4. Verify the burner exhaust is vented to atmosphere.
5. Verify safety system has been activated.
6. Verify the manual switch is operating correctly.