Precision Digital PD6400 - Manual (Page 49)

Model PD6400 High Voltage & Current Meter Instruction Manual
49
Relay and Alarm Operation Diagrams
The following graphs illustrate the operation of the relays, status LEDs,
and ACK button.
High Alarm Operation (Set > Reset)
For Manual reset mode, ACK can be pressed anytime to turn "off" relay.
To detect a new alarm condition, the signal must go below the set point,
and then go above it.