Replacing The Adapter Board; Removing/Replacing The Cpu Board; Removing The Cpu Board - Emerson FB2100 Field Replacement Manual

FB2100/FB2200 Flow Computer CPU Enclosure & Electronics Field Replacement Guide
D301803X012
November 2020

Replacing the Adapter Board

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2.
3.
4.
5.
6.
7.

Removing/Replacing the CPU Board

UL Listed CPU Board Field Installed Accessory Kit for Use in Class I, Division 2, Groups A, B, C, and D

The CPU board resides inside the CPU enclosure. You would remove/replace the CPU board if it
fails, or as a step in the field replacement of the 6-channel expansion I/O board, the connectivity
board, or the CPU enclosure (bottom).

Removing the CPU Board

1.
2.
3.
4.
5.
14
Gently slide the adapter board onto the CPU board connector.
Once on the connector, carefully lift it just enough so it moves to sit inside the four plastic
tabs on the bottom of the CPU enclosure.
Replace the two CPU board screws nearest to the adapter board. Torque the screws to 1 to 2
in-lbs (0.1 to 0.2 N-m).
Replace the CPU enclosure cover. See
Attach the entire CPU enclosure assembly to the battery compartment inside the flow
computer enclosure. See
9.
Re-connect the cable between the CPU enclosure and the sensor.
Replace the HMI module. See
Flow Computer CPU Board Field Installed Accessory Kit Part No.621678-01-0 for use with UL
Listed Model Series FB2100 and FB2200.
Remove the HMI module. See
Disconnect the cable between the CPU enclosure and the sensor. See
Between the CPU Enclosure and the Sensor
Detach the CPU enclosure from the battery compartment. See
from the Battery Compartment
Remove the CPU enclosure cover. See
Remove the adapter board. See
Replacing the CPU Enclosure Cover (Top)
Re-attaching the CPU Enclosure to the Battery Compartment
Replacing the HMI Module
Removing the HMI Module
on page 7.
on page 7.
Removing the CPU Enclosure Cover (Top)
Removing the Adapter Board
on page 11.
on page 6.
on page 6.
Disconnecting the Cable
Detaching the CPU Enclosure
on page 10.
on page 12.
on page