Specifications

748414-A
August 1999
52
Heated Flame Ionization Detector Analyzer Module
Rosemount Analytical NGA 2000
4
MAINTENANCE AND TROUBLESHOOTING
LON/P
OWER
M
ODULE
1. Disconnect wiring connectors, note locations.
2. Refer to Figure 4-20. From the outside of the front panel, remove the two mounting
screws.
3. Install replacement module in reverse order.
LED I
NDICATOR
A
SSEMBLY
1. Disconnect wiring connector, note location.
2. Refer to Figure 4-20. From the inside of the front panel, remove the two hex nuts
securing LED indicator assembly to front panel. Remove indicator assembly and o-rings
(four).
3. Inspect o-rings for damage, replace if necessary. Install o-rings on replacement
indicator assembly, mount assembly on mounting studs with hex nuts.
4. Re-connect wiring connector.
M
ANUAL
I
GNITE
T
OGGLE
S
WITCH
1. Disconnect wiring connector, note location.
2. Refer to Figure 4-20. From the outside of the front panel, remove the toggle switch seal.
3. Pull the switch and o-ring out from inside the front panel.
4. Inspect o-ring for damage, replace if necessary. Install o-ring on replacement switch,
insert through front panel from the inside.
5. Install switch seal.
6. Re-connect wiring connector.
B
URNER
A
IR
S
ENSOR
1. Disconnect wiring connector, note location.
2. Using an open-end wrench to hold the sensor fitting while using another open-end
wrench to remove the sensor.
3. Replace the Teflon pipe thread tape on the treads of the sensor fitting.
4. Install sensor onto sensor fitting.
5. Re-connect wiring connector.