MI 3309 DeltaGT
Single test
33
Figure 5.10: Measurement of insulation resistance of fixed installed DUTs of Class I
Insulation resistance measurement procedure
Select the INSULATION function.
Set the test parameters.
Connect device under test to the instrument (see
Figure 5.9
and
Figure 5.10
).
Press the TEST key for measurement. To stop continuous measurement press
TEST key once again.
Store the result by pressing MEM key (optional).
Figure 5.11: Examples of Insulation resistance measurement results
Displayed results:
Main result ............. Insulation resistance
Notes:
When S/EB probe is connected during the test then the current through it is also
considered.
Consider any warning on the display before starting the measurement!
Do not touch or disconnect the device under test during the measurement or before
it is fully discharged! The message »Udisch …« will be displayed while the voltage
on the device is higher than 10 V!
5.2.4 Insulation resistance - P
The insulation resistance test checks the resistance between live conductors and isolated
accessible metal parts of the device under test. This test can disclose faults caused by
pollution, moisture, deterioration of the insulation material etc.
The instrument measures the insulation resistance between:
The (L+N) on test socket and S/EB terminal;
LN terminal and S/EB terminal (for fixed installed appliances).
