Relay And Alarm Operation Diagrams - Siemens SITRANS RD300 Operating Instructions Manual

SITRANS RD300

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.
A5E31917845 SITRANS RD300 – OPERATING INSTRUCTIONS Page 41