Instructions

GMC-I Messtechnik GmbH 11
2.4 Measuring Leakage Current at
Single-Phase or 3-Phase Systems
➭ Turn the measuring instrument on with the
POWER key.
➭ Select the current type via the ACA or DCA
key.
➭ Set the RANGE UP or RANGE DOWN key to the
appropriate range for the current to be
measured.
Otherwise, set the measuring range
switch to the highest of the three ranges in
order to avoid possible over-ranging.
➭ Prior to DC measurements:
Perform zero balancing via the ZERO AD-
JUST key.
➭ 1-Phase System:
Close the clip around both conducting cables.
3-Phase System:
Close the clip around all 3 conducting cables.
➭ Read the measured value from the dis-
play.
➭ After measurement has been completed:
Remove the clip from the cable and turn
the measuring instrument off by pressing
the POWER key.