MI 3309 DeltaGT
Single test
35
Insulation resistance - P measurement procedure
Select the INSULATION-P function.
Set the test parameters.
Connect device under test to the instrument (see
Figures 5.13
and
Figures 5.14
).
Press the TEST key for measurement. To stop continuous measurement press
TEST key once again.
Store the result by pressing MEM key (optional).
Figure 5.15: Example of insulation resistance - P measurement results
Displayed results:
Main result ............. Insulation resistance (LN – P)
Notes:
The currents flowing through the PE terminal or PE on test socket will NOT be
considered.
Consider any warning on the display before starting the measurement!
Do not touch / 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!
5.2.5 Substitute leakage
Leakage currents between live conductors and accessible metal parts (housing, screws,
handles etc.) are checked with this test. Capacitive leakage paths are included in the result
too. The test measures the current flowing at a test voltage of 30 VAC and the result is
scaled to the value of a nominal mains supply voltage.
The instrument measures the substitute leakage between:
The (L+N) on test socket and PE terminal on test socket / (S/EB) terminal;
LN terminal and PE terminal / (S/EB) terminal (for fixed installed appliances).
This function is primarily intended for testing Class I appliances.
Figure 5.16: Substitute leakage menu
Test parameters for Substitute leakage current measurement
OUTPUT
Test voltage [30 V]
LIMIT
Maximum current
[0.25 mA, 0.50 mA, 0.75 mA, 1.00 mA, 1.50 mA,
2.00 mA, 2.25 mA, 2.50 mA, 3.50 mA, 4.00 mA, 4.50 mA, 5.00 mA,
5.50 mA, 6.00 mA, 7.00 mA, 8.00 mA, 9.00 mA, 10.0 mA, 15.0 mA, --- mA]
TIME
Measuring time
[2s, 3s, 5 s, 10 s, 30 s, 60 s, 120 s, --- s (continuous
measurement)]
