Emerson FB1100 - Removing;Replacing the HMI Module

FB1100 Flow Computer Instruction Manual
D301752X012
November 2023
Service and Troubleshooting 57
Table 4-3. Switch and Buttons
Button Name
Purpose
Procedure
SYSTEM RESET
Resets power. This momentary
switch interrupts power to the
flow computer to reset it. Used if
system is powered on but is non-
functional; this attempts a reboot.
Move the SYSTEM RESET switch
either up or down. Unit powers
off and then restarts.
A
Clears memory (SRAM). The SRAM
memory holds current data
values and pending alarm
messages. If unit has
unexpectedly stopped operating,
you can depress this button on
power-up to clear that
information from memory (hard
reset). Try this if a SYSTEM RESET
alone does not work.
1.
Press and hold the A button.
2. While continuing to hold the A
button, move the SYSTEM
RESET switch either up or
down to initiate a reset.
3. Release the A button. The
system clears SRAM during
the power up sequence.
B
Currently undefined
None
4.4 Removing/Replacing the HMI Module
You do not need to power down the unit to replace the HMI module if you are in a non-
hazardous area.
DANGER
Ensure the flow computer is in a non-hazardous area. Never remove/replace the HMI
module in a hazardous area.
Important
The HMI module includes the FBxWifi transceiver; once you remove the HMI module; Wi-Fi
communication with the flow computer ceases.
1. Remove the retaining clamp from the front end cap (if present). (See Section 2.6.1)
2. Unscrew the front end cap.
3. Loosen the four captive fastening screws on the HMI module.