Specifications

748414-A
August 1999
28
Heated Flame Ionization Detector Analyzer Module
Rosemount Analytical NGA 2000
4
MAINTENANCE AND TROUBLESHOOTING
Figure 4-2 illustrates the locations of major components of the HFID.
F
IGURE
4-2. L
OCATIONS OF
M
AJOR
A
SSEMBLIES OF THE
HFID
4.2 COMPONENT REPLACEMENT
4.2.1 O
VEN
Though the oven can be replaced as a complete unit, all internal components are field
replaceable.
4.2.1.1 O
VEN
R
EMOVAL
1. Refer to Figure 4-3, disconnect the oven's three gas lines and seven electrical cables,
noting location of mating connectors for re-installation.
NOTE
DO NOT remove the fittings from the gas lines on the detector.
2. Remove the two hex nuts securing the oven to the chassis and the two screws
securing oven to the rear panel. Lift oven assembly from analyzer.
Oven Assembly
659551
Fan Assembly
657414
Rear Panel Assembly
656954
Fixed Flow Controller Assembly
657434
Front Panel Assembly
656949
Electronics Assembly
656943
DC Power Supply
Module Assembly
657413