MPI-506 – USER MANUAL
You can discontinue the measurement by pressing the ESC button.
In a mains without interferences, the measurement takes ca. 8 seconds. If interfer-
ences occur, this time may be longer.
In the electrical installations with the 30 mA residual current devices the sum of the
installation leakage currents and the test current may trip the RCD. In such case, try
to reduce the leakage current of the tested installation (i.e. by disconnecting the
loads).
Additional information displayed by the meter
Meter ready for measurement
Voltage on the meter L and N terminals is out of range for
which the measurement can be made.
Voltage on the meter L and PE terminals is out of range
for which the measurement can be made.
Incorrect or unstable power grid frequency.
Measurement error – loss of voltage after the measure-
ment.
Short-circuit loop of the meter is faulty.
N conductor not connected.
Message (displayed after the measurement) indicates sig-
nificant disturbances in the mains during measurement.
The measurement result may include a large, unspecified
error.
Temperature inside the meter has exceeded the allowed
limit. The measurement is blocked.
The L and N conductors are switched (voltage between the
PE and N conductors).
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