Signal Loss Or Loop Break Relay Operation - FlowLine DataView LI55 Instruction Manual

DataView™ LI55 Level Controller

Signal Loss or Loop Break Relay Operation

The following graph shows the loop break relay operation for a high alarm relay.
Set
Reset
de-energized
Relay
LED
Relay
LED
Relay
LED
When the meter detects a break in the 4-20 mA loop, the relay will go to one of
the following selected actions:
1. Turn On (Go to alarm condition)
2. Turn Off (Go to non-alarm condition)
3. Ignore (Processed as a low signal condition)
MN301033 Rev B1
Input
energized
off on
Loop Break = Ignore
Loop Break = Off
Loop Break = On
Instruction Manual
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