Emerson FB2100 - Switch and Buttons

FB2100 Flow Computer Instruction Manual
D301783X012
November 2023
Service and Troubleshooting 89
5.3 Switch and Buttons
A momentary switch and two push buttons on the HMI module provide troubleshooting
options for the flow computer.
DANGER
EXPLOSION HAZARD: Never open the enclosure in a hazardous location. Opening the
enclosure in a hazardous location could result in an explosion.
Figure 5-3. Switch and Buttons
Table 5-3. 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 powered on but 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