dehn DEHNrecord SD Manual page 44

Multifunctional measurement and analysis device for monitoring power quality
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10.
Device settings
Parameters for individual recording criteria
Individual recording criterion active
Herewith the additional criterion for a power frequency overvoltage or undervoltage can be activated.
The selectivity factor and the switch-off time reserve do not apply to this criterion.
Voltage
Individual voltage threshold (2...440V). Attention: Exceeding or falling below threshold must be set under "Status/Direction"
Status/Direction
Setting whether triggering occurs when the voltage threshold is exceeded or not reached.
Duration
Delay time after which triggering occurs when the voltage threshold is exceeded or not reached.
Individual recording criterion
Voltage
Duration
Status/Direction
Setting range
2 ... 440 V
0.04 ... 3600 s
Trigger when exceeding or falling
below the voltage threshold
Devault value
325 V
1 s
exceeding
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