A 1322 / A 1422
Measurements
18
5.2 Insulation resistance and substitute leakage current
measurements
Refer to chapter
Measurements – Single tests for appliances
, paragraph
Insulation resistance
in master instrument user manual for detailed information.
Refer to chapter
Measurements – Single tests for appliances
, paragraph
Substitute leakage current
in master instrument user manual for detailed
information.
Procedure:
Item Comment
Prepare test system.
See
chapter 4.3 Working
with the adapter.
Connect power supply plug of tested appliance into
proper test socket.
See
figure below.
Prepare and start measurement on the master
instrument.
Wait until measurement is finished or stop the
measurement.
Check result(s).
Store result(s).
Optional
Figure 5.2:
Insulation resistance and substitute leakage current measurements
Notes:
Consider any warning on the display before starting the measurement!
When EB/S (or S/C1) probe is connected during the test then the current through
it is also considered.
Do not touch or disconnect the DUT during the insulation resistance
measurement or before it is fully discharged! The message »
Discharging…
« will
be displayed while the voltage on the DUT is higher than 20 V!
Substitute leakage current may differ substantially from that of conventional
leakage current test because of the way the test is performed. For example, the
difference in both leakage measurements will be affected by the presence of
neutral to earth noise suppression capacitors.
