MI 3321 MultiservicerXA
Single tests in PAT testing mode
74
Examples of welding circuit leakage current measurement results
Displayed results:
Main result ............. welding circuit leakage current
Notes:
During the test, a mains voltage is connected to the welding machine. Consider
safety precautions.
Consider any displayed warning before starting measurement!
6.3.7 Primary leakage current
The purpose of this test is to determine the sum of all leakage currents flowing from the
primary circuit to earth. Because the differential measuring 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.
Primary leakage current menu
Test parameters for primary leakage
current measurement
LIMIT
Maximum current
[3.50 mA, 5.00 mA, 10.00 mA, none]
TIME
Measuring time
[5 s, 10 s, 30 s, 60 s, 120 s, none]
Key (F3)
CHG-OFF Change between L-N on a single phase test socket of 3-phase adapter is
disabled.
CHG-ON
Change between L-N on a single phase test socket of 3-phase adapter is
enabled.
Test circuit and measurement procedure for primary leakage current
measurement
