OPERATING MANUAL PAT-806 version 1.08
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4.5 Measurement of insulation resistance
Press
R
ISO
. After that meter is prepared for
measurement.
Further pressing of
R
ISO
results in
switching from standard R
ISO
measurement to a three-point
measurement on welding equip-
ment.
When parameters must be changed press
SET
.
Setting is performed as in section 4.2 (lower limit is
set). For the standard measurement the following
parameters are set: U
ISO
voltage, the lower limit
value and measurement time. For the triple meas-
urement U
ISO
voltage is set for all three measure-
ments as well as limits and measurement times for
each measurement.
Notes:
- Tested device must be turned on.
- Test circuit is electrically isolated from the mains and from PE mains lead.
- The measurement result should be read after displayed values are stabilized.
- After the measurement the tested object is automatically discharged.
4.5.1 R
ISO
measurement on devices of Class I
Connect the mains plug of the tested device into the test socket
of the meter. The measurement is made between shorted L, N
and PE. In addition, it is possible to carry out the measurement
with the probe connected to
R
ISO
-
socket.
