Emerson FB1200 Manuale di sostituzione sul campo - Pagina 12

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FB1100/FB1200 Flow Computer CPU Module Field Replacement Guide

D301802X012

November 2020

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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