Instructions
GMC-I Messtechnik GmbH 11
Overview of Connected Conductors
The red illuminated LEDs in the connections
overview indicate the respectively connected
conductors.
Continuity,
ZLOOP AC/DC
4.3 Measuring Line Impedance (ZL-N)
Attention!
!
Single-Phase Mains Connection
The phase must be connected to L1
for single-phase mains connection.
4.3.1 Measuring Line Impedance with the
PROFITEST MTECH+ and MXTRA
Preparing for Measurement
➭ Connect the test instrument’s test plug
to the PRO-SCHUKO plug insert.
➭ Disconnect the system from all sources
of voltage before connecting the mea-
suring points to the test adapter.
➭ Connect the system to sockets L1, L2,
L3, N and PE.
➭ Switch the system on.
Performing the Measurement
Attention!
!
Insulation test voltage may not ex-
ceed 500 V.
➭ Perform the measurement as described
in the operating instructions for the re-
spective test instrument:
PROFITEST MTECH+: sections 5.8 and 8
PROFITEST MXTRA: sections 5.8 and 8
Test
Sequence
Z
loop
AC/DC LED Display (red)
01/9 L1-PE LED1 + LED11
02/9 L2-PE LED2 + LED11
03/9 L3-PE LED3 + LED11
04/9 L1-N LED1 + LED10
05/9 L2-N LED2 + LED10
06/9 L3-N LED3 + LED10
07/9 L1-L2 LED1 + LED8
08/9 L2-L3 LED2 + LED9
09/9 L1-L3 LED1 + LED9
PROFITESTREMOTE Measurements