Operation Manual

76 GMC-I Messtechnik GmbH
All
Excessive temperature inside the test instrument
Remedy: wait for test instrument to cool down
XX R
ISO
/ R
LO
Interference voltage
Remedy: device under test must be disconnected from all sources of voltage
PRO-RE RE (bat)
Interference voltage > 20 V at the probes:
H to E or S to E
no measurement possible
X PRO-RE RE (bat) Probe ES not connected or connected wrong.
PRO-RE/
2
RE (bat) Generator current clamp (E-Clip-2) not connected
XX
All measurements
with probe
Interference voltage at the probe
XX R
ISO
/ R
LO
Overvoltage or overloading of the measuring voltage generator during
measurement of R
ISO
or R
LO
XX
I
N
/ I
F
Z
L-N
/ Z
L-PE
Z
ST
, R
ST
, R
E
Meter start-up
No mains connection
Remedy: inspect mains connection
XX All
Defective hardware
Remedy:
1) Switch on and off.
or
2) Briefly remove the batteries.
If error message persists, send instrument to GMC-I Service GmbH.
XX R
LO
OFFSET measurement is not sensible.
Remedy: Check system.
OFFSET measurement of RLO+ and RLO– is still possible.
XR
LO
R
OFFSET
> 10 :
OFFSET measurement is not sensible.
Remedy: Check system.
XEXTRA  U
Z > 10 :
OFFSET measurement is not sensible.
Remedy: Check system.
XEXTRA  U
U
OFFSET
> U:
Offset value is larger than the measured value at the consuming system.
OFFSET measurement is not sensible.
Remedy: Check system.
XXR
ISO
/ R
LO
/ R
E(bat)
Contact problem or blown fuse
Remedy: Check test plug or measuring adapter for correct seating in the
test plug, or replace the fuse.
Status Test
plug
Meas.
Adapter
Position of the
Function Switch
Function / Meaning