Emerson FB1100 Field Replacement Manual page 12

FB1100/FB1200 Flow Computer CPU Module Field Replacement Guide
D301802X012
November 2020
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10
Correct IO Expansion Board Screw Locations
internal wire connector plug (from Step 13) onto the mating plug on the bottom of the new
(replacement) CPU module and gently slide the new CPU module into the housing, being
careful not to pinch wires. Press firmly into place.
Tighten the two captive fastening screws that hold the CPU module in the housing. Torque
screws to 4 to 6 in-lbs (0.5 to 0.7 N-m).
Replace the SRAM backup battery you removed in Step 10. (The "+" must be facing
upwards.)
Slide the HMI module/battery pack enclosure assembly (from Step 7) back into the housing.
Tighten the captive fastening screws on the top of the battery pack enclosure and then
tighten the bottom screws on the HMI module with a torque value of 4 to 6 in-lbs (0.5 to 0.7
N-m).
Reconnect battery power (if present). (See the connector shown in Step 8).
Restore main power at connector TB1.
Carefully align the end cap threads with the threads of the enclosure and screw each end cap
clockwise (eight full turns) until it is tightly sealed to the enclosure. End caps must have at
least 8 full threads engaged upon reassembly.
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.
Snap the