User Manual

80 GMC-I Messtechnik GmbH
XI
ΔN
/ I
F
Display at the connection pictograph:
Overlying protective conductor bar interrupted with reference to the keys
at the test plug
Cause: current measuring path interrupted
Result: no measured value display
R
E
I
ΔN
/ I
F
Probe is not detected, probe not connected
Remedy: inspect probe connection
R
E
Clamp is not detected:
– Clamp is not connected or
– Current through clamp is too small (partial earth resistance too high) or
– Transformation ratio set incorrectly
Remedy: Check clamp connection and transformation ratio.
Check the batteries in the METRAFLEX P300 and replace
if necessary.
R
E
If you have changed the transformation ratio at the test instrument, a
message appears prompting you to change the setting at the current
clamp sensor as well.
R
E
Voltage too high at clamp input or signal distorted
The transformation ratio parameter selected at the test instrument might
not correspond to the transformation ratio at the current clamp sensor.
Remedy: Check transformation ratio or setup.
All
Battery voltage is less than or equal to 8 V.
Reliable measurement is no longer possible.
Storage of measured values to memory is disabled.
Remedy: Rechargeable batteries must be recharged, or replaced towards
the end of their service life.
I
ΔN
/ I
F
Resistance in N-PE path is too high.
Consequence: Required test current cannot be generated, measurement
is aborted.
Z
L-PE
, R
E
Upon exceeding the specified contact voltage U
L
:
Z
L-PE
and R
E
: request to switch to the 15 mA wave
only R
E
alternatively:
Request to reduce the measuring range (reduce current)
Status Test
plug
Meas.
Adapter
Position of the
Function Switch
Function / Meaning
I
ΔN
/I
F
10 mA 30 mA 100 mA 300 mA 500 mA
R
MAX
for I
ΔN
510 Ω 170 Ω 50 Ω 15 Ω 9 Ω
R
MAX
for I
F
410 Ω 140 Ω 40 Ω 12 Ω 7 Ω