Emerson ROSEMOUNT NGA2000 HFID Instruction Manual page 4

Instruction Manual
748297-E
June 2003
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
ii Contents
Model NGA2000 HFID
Rosemount Analytical Inc. A Division of Emerson Process Management