Operation Manual

MI 3310 / MI 3310A SigmaGT Measurements
56
Displayed results:
Main result ............. substitute leakage current LN-S
Notes:
 Consider any displayed warning before starting measurement!
 If a Class I device is connected to the mains test socket the currents flowing through
the PE terminal will not be considered.
5.2.6 Differential leakage current
The purpose of this test is to determine the sum of all leakages flowing from the live
conductor to the earth. Because the differential method for determining leakage current
is used the full and true DUT leakage current is always measured, even when parallel
current paths to ground exist in the DUT.
Differential leakage current menu
Test parameters for differential leakage current measurement
OUTPUT Test voltage [230 V]
LIMIT Maximum current [0.25 mA, 0.50 mA, 0.75 mA, 1.00 mA, 1.50 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, none]
TIME Measuring time [2 s, 3 s, 5 s, 10 s, 30 s, 60 s, 120 s, 180 s, none]
Test circuit for differential current measurement
Measuring of differential current
Differential current measurement procedure
 Select the Leakage function.
 Set test parameters.
 Connect device under test to the instrument (see figure above).
 Press the START key for measurement.