User guide

Multi Process Meter Instruction Manual

Time Delay Operation

The following graphs show the operation of the time delay function.

When the signal crosses the set point, the On time delay timer starts

and the relay trips when the time delay has elapsed. If the signal drops

below the set point (high alarm) before the time delay has elapsed, the

On time delay timer resets and the relay does not change state. The

same principle applies to the Off time delay.

Note: If “Automatic or Manual (A-mAn)” reset mode is selected, the

LED follows the reset point and not the relay state when the

relay is acknowledged.