54
GMC-I Messtechnik GmbH
X
Z
L-N
Z
OFFSET
> Z
X
:
Offset value greater than the measured value at the power consuming
system
OFFSET measurement not advisable
Remedy: check system
X
X
R
ISO
/ R
LO
Contact problem or fuse is defective
Remedy: check test plug or measuring adapter for correct seating in the
test plug or replace fuse.
X
R
E
Polarity at 2-pole adapter must be reversed.
X
I
N
/ I
F
N and PE are reversed.
X
I
N
/ I
F
Z
L-N
/ Z
L-PE
/ R
E
1) Mains
connection
error.
Remedy: inspect mains connection.
or
2) Display in the connection pictograph: PE interrupted (x) or lower
protective conductor jumper interrupted with reference to the keys on
the test plug.
Cause:
voltage measuring path
interrupted
Result: measurement is disabled
Note: only when
appears: Measurement can be launched neverthe-
less by pressing the start key once more.
X
I
N
/ I
F
Display in the connection pictograph: Upper protective conductor jumper
interrupted with reference to the keys on the test plug.
Cause:
current measuring path
interrupted
Result: no measured value display
R
E
I
N
/ I
F
Probe is not detected, probe not connected.
Remedy: inspect probe connection.
R
E
Clamp is not detected:
– Clamp not detected or
– Current through clamp too small (earth resistance too high) or
– Transformer ratio set incorrectly
Remedy: inspect clamp connection, check transformer ratio,
check/replace the batteries in the METRAFLEX P300
R
E
If you have changed the transformer ratio at the test instrument, a prompt
appears indicating it should be adjusted at the current clamp sensor too.
R
E
Voltage too high at clamp input or signal interference
The transformer ratio parameter selected at the test instrument may not
match the current clamp sensor’s transformer ratio.
Remedy: check transformer ratio or setup
All
Battery voltage falls short of or equals 8 V.
No reliable measurements can be performed any longer.
Storing of measured values is inhibited.
Remedy: Rechargeable batteries must be charged or replaced towards
the end of their useful life.
I
N
/ I
F
Resistance in N-PE path is too high.
Result: The required test current cannot be generated and measurement
is aborted.
Status
Test
Plug
Meas.
Adapter
Selector Switch
Position
Function / Meaning
