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Instruction Manual
748297-E
June 2003
ii Contents Rosemount Analytical Inc. A Division of Emerson Process Management
Model NGA2000 HFID
4-0 MAINTENANCE AND TROUBLESHOOTING .....................................................................4-1
4-1 Overview................................................................................................................................4-1
4-2 Component Replacement......................................................................................................4-3
a. Oven................................................................................................................................4-3
b. Burner Sensor, Detectors and Ignitor .............................................................................4-4
c. Burner Internal Components...........................................................................................4-7
d. Thermal Block .................................................................................................................4-11
e. Electronics Assembly......................................................................................................4-13
f. Fan Assembly .................................................................................................................4-18
g. Flow Controller................................................................................................................4-19
h. DC Power Supply Module...............................................................................................4-21
i. Front Panel Components................................................................................................4-22
j. Rear Panel Components.................................................................................................4-27
4-3 Troubleshooting Checklist .....................................................................................................4-29
a. Safety System.................................................................................................................4-29
b. Ignition.............................................................................................................................4-29
c. Drift..................................................................................................................................4-30
d. Noise...............................................................................................................................4-30
5-0 REPLACEMENT PARTS......................................................................................................5-1
5-1 Matrix.....................................................................................................................................5-1
5-2 Replacement Parts................................................................................................................5-2
a. General ...........................................................................................................................5-2
b. Pneumatics .....................................................................................................................5-2
c. Oven Components ..........................................................................................................5-3
6-0 RETURN OF MATERIAL......................................................................................................6-1
6-1 Return Of Material .................................................................................................................6-1
6-2 Customer Service..................................................................................................................6-1
6-3 Training..................................................................................................................................6-1