Operation Manual

GMC-I Messtechnik GmbH 17
Initial Start-Up – Setup
Type of Mains Connection Error Message Condition Measurements
Voltage from PE
to finger contact
Text at LCD
panel
Touch the
contact
surface
U  25 V
Disabled
Protective conductor PE and phase
conductor L reversed and/or
neutral conductor N interrupted
Text at LCD
panel
Voltage at PE
>65V
Impossible
(no supply power)
Contact voltage from PE
to neutral conductor N
or phase conductor L
Text at LCD
panel
U  25 V
Disabled, but
disabling can be
deactivated
(e.g. IT network)
Line voltage
too low
Text at LCD
panel
U
L-N
<90V
Possible
under certain
circumstances