Specifications

748414-A
August 1999
56
Heated Flame Ionization Detector Analyzer Module
Rosemount Analytical NGA 2000
4
MAINTENANCE AND TROUBLESHOOTING
F
UEL
I
N
2-W
AY
S
OLENOID
V
ALVE
1. Disconnect wiring solenoid valve wiring connector, note location.
2. Inside the analyzer module, disconnect the tube going to the connector on the “out” port
of the solenoid valve.
3. On the rear of the analyzer module at the fuel in port:
a. Disconnect the fuel in tube.
b. Remove nuts and washers.
c. Remove solenoid valve from analyzer module
4. Remove the fittings from the solenoid valve and replace the Teflon pipe thread tape.
5. Verify that body of replacement solenoid valve is oriented as shown in Figure 4-22. If
not, rotate till wires are in-line with “out” port.
6. Install fittings into replacement solenoid valve, re-install in analyzer module.
B
URNER
A
IR
I
N
F
ILTER
1. Leaving the bulkhead fitting secured to the rear panel, remove the tubes, nuts and
ferrules from the fitting.
2. Insert a clean, rigid piece of tube or rod (smaller than .25 inch diameter) into the
bulkhead fitting to force out the filter disc.
3. Install the replacement filter in the same manner, through the rear of the bulkhead
fitting.
4. Re-connect tubes.
H
EATED
B
YPASS
S
AMPLE
O
UT AND
H
EATED
S
AMPLE
I
N
R
ESTRICTORS
1. On the outside of the rear panel, disconnect tube and remove nut.
2. Insert a small spade screwdriver into the bulkhead and remove the restrictor.
3. Install in reverse order.
R
EGULATED
A
IR
I
N
C
HECK
V
ALVE
1. Disconnect tube at elbow.
2. Remove check valve from female connector.
3. Remove elbow from check valve.
4. Add Teflon pipe thread tape to check valve threads.