QA-ST MKII – Getting Started Guide
3
(Tests, continued)
RM – Reverse Mains Test
This test will break both the Live/L1 and Neutral/L2 power lines to the DUT. It will
then reverse the normal connection, so that what was Live/L1 is now Neutral/L2,
and what was Neutral/L2 is now Live/L1. To choose Reverse Mains measurements
when the selection is available, press the rev. pol button. The display will reflect
the change in measurement type.
⇒ Warning! When testing units that have a large inductive load (motor),
always turn OFF the DUT BEFORE reversing Mains.
Mains Voltage Test – “V”
This test measures the mains voltage, in volts,
between Live and Neutral. Press the V button below
the line voltage label, and the result will be
displayed.
Protective Earth Test – “mΩ”
This test measures the resistance, in milliohms,
between the enclosure of the DUT and Earth contact
on the front outlet. To execute the test and display
the results, connect the test lead to the enclosure of the DUT, and then press the
mΩ button below the gnd wire res label.
Earth Leakage Current Test – “µA” – ON, RM
This test measures the current, in microamps,
passing through the Earth lead. To execute the test
and display the results, press the earth button below
the leakage current label.
⇒ Warning! When testing units that have a large inductive load (motor),
always turn OFF the DUT BEFORE reversing Mains.
Enclosure Leakage Current Test – “µA” – OE,
ON, RM, OERM, ONRM
This test measures the leakage current, in
microamps, between the enclosure of the DUT and
Earth contact on the front outlet. To execute the test and display the results, connect
the test lead to the enclosure of the DUT, and then press the enclosure button
below the leakage current label.
⇒ Warning! When testing units that have a large inductive load (motor),
always turn OFF the DUT BEFORE reversing Mains.
Protective Earth
130mΩ
Enclosure Leakage
Current
xxxµA
Earth Leakage Current
xxxµA
Mains: NC
Mains Voltage
120V
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