Operation Manual

MI 3309 DeltaPAT Single test
36
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).
This function is primarily intended for testing Class II appliances and Class II parts of Class
I appliances.
Figure 5.12: Insulation resistance - P menu
Test parameters for Insulation resistance - P measurement
OUTPUT Test voltage [250 V, 500 V]
LIMIT
Minimum resistance [0.01 M, 0.10 M, 0,25M, 0.30 M, 0.50 M,
1 M, 2 M, 4 M, 7 M, 10 M, --- M]
TIME Measuring time [2 s, 3 s, 5 s, 10 s, 30 s, 60 s, 120 s, --- s (continuous
measurement)]
Test circuits for Insulation resistance - P measurement
Figure 5.13: Measurement of Insulation resistance - P