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Atrato_Instruction_Manual_0322
®
Alarm Logic Table
Flow Alarm
Latching
Invert
Alarm Action
Below Threshold
Above Threshold
Single
None
Unticked
OFF
ON
Single
None
Ticked
ON
OFF
Single
High Threshold
Unticked
OFF
ON
Single
High Threshold
Ticked
ON
OFF
Single
Low Threshold
Unticked
ON
OFF
Single
Low Threshold
Ticked
OFF
ON
In Range
Outside Range
Dual
None
Unticked
ON
OFF
Dual
None
Ticked
OFF
ON
Dual
Out of Range
Unticked
OFF
ON
Dual
Out of Range
Ticked
ON
OFF
Forward
Reverse Flow
Reserve Flow
n/a
Unticked
OFF
ON
Reverse Flow
n/a
Ticked
ON
OFF
NOTE:
The NPN and PNP have different outputs when used due to their wiring.
•
Using the NPN: OFF =PVDC and ON = Unpowered 0VDC
•
Using the PNP: OFF=Unpowered 0VDC and ON = PVDC
NOTE:
Alarms use Filtered Flow Values!