Endress+Hauser RMA 421 Mise En Service page 65

Operation of the switch time delay
Measurement value
SETP
DELY
Relay deactivated (no power), yellow LE off
À
Using this setting a time delay
and activating the alarm indicator/relay can be installed.
SETP
If the measurement value falls below the preset switch
threshold (without hysteresis) within the time delay
SETP
then the switch delay time counter is reset to zero. The time
counter restarts after a new infringement of the preset switch
threshold .
SETP
This is also valid for minimum monitoring.
:
DELY
HYST
between switch threshold
DELY
Process transmitter
DELY
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