Sonel MPI-506 - Page 33

MPI-506 – USER MANUAL
31
Additional information displayed by the meter
Defective RCD.
RCD in good working order.
Switch on the RCD.
Meter ready for measurement
Voltage on the meter L and N terminals is out of range for
which the measurement can be made.
The L and N conductors are switched (voltage between the
PE and N conductors).
Temperature inside the meter has exceeded the allowed
limit. The measurement is blocked.
RCD did not trip or tripped too late.
After the U
B
R
E
measurement, the t
A
measurement was
not performed because the R
E
and voltage values did not
allow generating the required current value.
Incorrect or unstable power grid frequency.
Measurement error – loss of voltage after the measure-
ment or RCD tripped during the U
B
or R
E
measurement.
Safe touch voltage is exceeded.