MI 3321 MultiservicerXA
Single tests in PAT testing mode
60
Notes:
During the test, a mains voltage is connected to the DUT. If DUT contains moving
parts, make sure that it is safely mounted or protected to prevent possible danger
to the operator or damage to the DUT or surrounding environment!
Consider any displayed warning before starting measurement!
The instrument automatically changes L and N polarity of connected DUT during
the test.
6.2.8
Polarity test
This test checks the polarity of a supply cords.
In the Normal mode the test is performed with internal low voltage sources.
The Active mode is intended to test cords/ leads with integrated RCD protection. Mains
voltage is applied to the tested cord in order to operate the RCD during the test.
The following faults can be detected: L open, N open, PE open, L-N crossed, L-PE
crossed, N-PE crossed, L-N shorted, L-PE shorted, N-PE shorted, multiple faults.
Polarity test menu
Test parameters for polarity test
TEST
Type of polarity test [normal, active]
Test circuit for polarity test
Polarity test of IEC cord
Polarity - Standard test procedure
Select the
Polarity test
function.
Select the
normal test
sub-function.
Connect
tested IEC cord to the instrument (see figure above).
Press the
START
key for measurement.
