Maintenance And Troubleshooting; Overview; Figure 4-1. Removal Of Cover And Insulation Shield - Emerson ROSEMOUNT NGA2000 HFID Instruction Manual

Model NGA2000 HFID

MAINTENANCE AND TROUBLESHOOTING

QUALIFIED PERSONNEL
This equipment should not be adjusted or
repaired by anyone except properly quali-
fied service personnel.
4-1

OVERVIEW

This section contains instructions and proce-
dures for troubleshooting and maintaining the
HFID analyzer module. To access the inter-
nal components of the analyzer module, per-
form the following:
WARNING
FUEL IN
BURNER EXHAUST OUT
PURGE AIR OUT BURNER AIR IN
WARNING
ATTENTION
PRESSURE RELIEF VALVE
REGULATED AIR IN PURGE AIR IN
HEATED SAMPLE IN
HEATED SAMPLE BYPASS
Rosemount Analytical Inc. A Division of Emerson Process Management
SECTION 4
WARNING
Cover
Cover/Rear Panel
Securing Screws (6)
Figure 4-1. Removal of Cover and Insulation Shield
1. Remove power to the unit; shut off
gases and disconnect lines. Allow mod-
ule to cool.
2. Refer to Figure 4-1 below. Remove the
six screws securing the front panel, then
the six screws securing the cover to the
rear panel. Slide cover towards rear
panel to remove. Loosen four screws
securing inner insulation shield to base,
lift up to remove.
Figure 4-2 on page 4-2 illustrates the loca-
tions of major components of the HFID.
Securing
Screw (4)
Instruction Manual
748297-E
June 2003
Insulation Shield
Front Panel Securing
Screws (6)
Maintenance and Troubleshooting 4-1