MPI-540 ● MPI-540-PV – BRIEF USER MANUAL
3.14 Insulation resistance (PV)
WARNING
During measurements of insulation resistance, dangerous voltage up to 1 kV
occurs at the ends of test leads of the meter.
It is forbidden to disconnect test leads before the measurement is completed.
Failure to obey the above instruction will lead to electric shock with high volt-
age and make it impossible to discharge the tested object.
The measurement is performed similarly as in sec. 3.8. Measure the insula-
tion resistance between the positive pole (DC+) and grounding, as well as
between the negative pole (DC-) and grounding. For this purpose:
connect the grounding with R
ISO-
socket of the meter, connect DC+ line
with R
ISO+
meter, select R
ISO+
method in the instrument and start the
measurement,
connect DC- line with R
ISO+
socket, select R
ISO-
method in the instrument
and start the measurement.
After selecting the bar
on the right side, a menu
will slide out with additional
measurement results.
U
ISO L-N
– measurement
voltage
Selecting the bar hides
the menu.
3.15 Continuity of connections (PV)
Connect the measuring system. The measurement is performed similarly
as in sec. 3.9.2.