Emerson Rosemount 700XA Reference Manual page 126

Operation and maintenance
June 2022
3. Remove the explosion-proof dome and the thermal hood.
4. Remove the screw connecting the termination board to the FID cap.
5. Remove the two screws from the mounting bracket.
6. Unscrew and remove the vent connector.
7. Remove the screw from the top of the FID assembly.
Postrequisites
To reassemble the FID, refer to
step is to flip the FID switch to the ON position.
Reassemble the flame ionization detector (FID)
Procedure
1. Insert the FID into the mounting bracket and secure with the two block screws.
126
Figure 5-15: Location of the FID switch
Note
Use a backing wrench on the bolt fronting the FID cap when removing the vent
connector.
NOTICE
Electrostatic discharge (ESD)
Operators and technicians must wear an electrostatic wrist strap when handling
printed circuit cards to prevent shorting the boards through static electricity. Do
not install or remove the printed circuit assemblies while power is applied to the
device. Keep electrical components and assemblies in their protective (conductive)
carriers or wrapping until ready for use. Use the protective carrier as a glove when
installing or removing printed circuit assemblies.
Reassemble the flame ionization detector
Reference Manual
2-3-9000-744
(FID). The final
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