MPI-506 – USER MANUAL
3 Measurements
WARNING
During the measurements (fault loop impedance, RCD) never touch the earthed
and accessible parts in the tested electrical installation.
During the measurement do not switch the rotary switch as this may cause dam-
age of the meter and hazard for the user.
Message indicates, that an incompatibile measurement adapter is connected
to the meter.
3.1 AC voltage measurement
The meter measures and displays the mains alternating voltage in all measurement functions
with the exception of R. The voltage is measured for the 45…65 Hz frequency range. The test leads
should be connected as for a given measuring function.
3.2 Voltage and frequency measurement
Set the rotary switch to the U,f position.
Read the measurement result: frequency in the
main display field, voltage in the auxiliary field.