Sonel MPI-520 - Measurement of Insulation Resistance; Double-Lead Measurement

MPI-520 OPERATING MANUAL version 3.4
30
Remarks:
- The measurement is interrupted, if during measurement of U
B
/R
E,
RCD has been triggered at 0.5I
n
current or if RCD has not been triggered in other cases or if a preset value of safe voltage U
L
has
been exceeded.
- Store the result in the memory (see point 4.1) or press ESC push-button and display only network
voltage and frequency.
- Remaining remarks and information are the same as for I
A
and Z
L-PE
measurement.
3.7 Measurement of insulation resistance
WARNING:
The object tested must not be live.
3.7.1 Double-lead measurement
Set the rotary switch of function selec-
tion at R
ISO
position.
Press F1 push-button and
move to selection of test voltage U
N
.
Select an appropriate item by means of
and
push-buttons and confirm
by pressing
ENTER.
Connect test leads according to the drawing.