Emerson FB2100 Flow Computer Instruction Manual
D301783X012
March 2019
Service and Troubleshooting
83
5.3
Switch and Buttons
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.
While continuing to hold the A
button, move the SYSTEM RESET
switch either up or down to initiate a
reset.
Release the A button. The system
clears SRAM during the power up
sequence.
B
Currently undefined
None