User guide

Multi Process Meter Instruction Manual
49
High Alarm with Fail-Safe Operation (Set > Reset)
Note: Relay coil is energized in non-alarm condition.
In case of power failure, relay will go to alarm state.
Rela
y
Input
Automatic (non-latching)
energized
de-energized
of
f
on
Rela
y
LED
Automatic or Manual (non-latching)
ACK
pressed
Rela
y
LED
Manual (latching)
ACK
pressed
Rela
y
LED
Manual only after passing below Reset (latching with clear)
ACK
pressed
Set
LED