Precision Digital PD865 - Manual (Page 43)

PD865 Snooper Modbus Serial Input Meter Instruction Manual
43
Low Alarm Operation (Set < Reset)
Reset
Set
Input
Relay
LED
energized
de-energized
on
off
Relay
LED
Automatic or Manual (non-latching)
ACK
pressed
Relay
LED
Manual (latching)
ACK
pressed
Relay
LED
Manual only after passing above Reset (latching)
ACK
pressed
Automatic (non-latching)
In Manual mode, ACK can be pressed anytime to turn the relay "off".
For the relay to turn back "on", the signal must go above set point, and
then go below it.