WIKA DI30 - Manual (Page 21)

6 Commissoning, operation
WIKA operating instructions digital indicator model DI30 21
6.3.4 Description of the alarm outputs
With the aid of the LEDs below the 7-segment display, you can view the
switching state of the alarm outputs. An active relay is indicated by the
relevant LED lighting up.
Working principle
The alarm outputs have the following properties with regard to their switching
properties:
Parameter
Description
Alarm output Deactivated, activated
Threshold Threshold value for switchover
Hysteresis Width of the window between the switch thresholds
Operating principle Active above SP value / active below SP value
Switch-on delay Time between reaching the threshold and the
resultant switching on of the relay
Switch-off delay Time between reaching the threshold and the
resultant switching off of the relay
Active above threshold
The alarm output is off
below the threshold and
switched on when reaching
the threshold.
Active below threshold
The alarm output is on
below the threshold and
switched off on reaching the
threshold.