Emerson FB1100 Field Replacement Manual page 5

FB1100/FB1200 Flow Computer CPU Module Field Replacement Guide
Flow Computer CPU board with solar/Enersys lead acid battery charge board Field Installed

Accessory Kit Part No. 399381-02-0 for use with UL Listed Model Series FB1100 and FB1200.
CAUTION
If your flow computer uses lead acid battery pack 399186-01-8 and you need to replace the CPU
and battery charge board, you must select kit 399381-01-0 because the 399186-01-8 battery is
not supported by the Enersys charge board.
1. Remove the front and rear end caps. Remove the retaining clamps on the end caps (if
present) using a 3 mm hexagonal wrench.
Components of Retaining Clamp Assembly
1 Screw
2 Retaining Clamp
3 Washer
2. Grasp the end cap.
Front End Cap
3. Unscrew the end cap by turning it counter-clockwise until it comes off. Set the end cap aside
in a safe location.
Note
If you need more leverage, place a long screwdriver or other appropriate tool across the two
notches in the end cap to act as a pry bar.
Rear End Cap
D301802X012
November 2020
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