Specifications

Heated Flame Ionization Detector Analyzer Module
Rosemount Analytical NGA 2000
748414-A
August 1999
27
MAINTENANCE AND TROUBLESHOOTING
4
Cover
Insulation Shield
Securing
Screw (4)
Cover/Rear Panel
Securing Screws (6)
PURGE
AIR OUT
WARNING
W ARNING
ATTE NTION
BURNER
AIR IN
REGULA TED
AIR IN
PURGE
AIR IN
HEATED
SAMPLE
BYPASS
HEATED
SAMPLE IN
BURNER
EXHAUST
OUT
FUEL
IN
PRESSURE
RELI EF
VALVE
Front Panel Securing
Screws (6)
WARNING: QUALIFIED PERSONNEL
This equipment should not be adjusted or repaired by anyone except properly
qualified service personnel.
4.1 OVERVIEW
This section contains instructions and procedures for troubleshooting and maintaining the
HFID analyzer module. To access the internal components of the analyzer module,
perform the following:
1. Remove power to the unit; shut off gases and disconnect lines. Allow module to cool.
2. Refer to Figure 4-1. 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.
F
IGURE
4-1. R
EMOVAL OF
C
OVER AND
I
NSULATION
S
HIELD