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2.
CASE LEAKAGE CURRENT
MEASUREMENTS:
Move the Mode switch to CASE LEAKAGE.
See Figure 2. The Earth Leakage (or Ground
Leakage) Current is measured through the
ground conductor of the Device Under Test.
This is only applicable to devices with a
three- conductor power cord.
The leakage measurement is made internally
when the Ground switch is momentarily
opened. The LCD will display the
measurement in Micro Amps. There is no
other connection required.
To measure the Case Leakage of devices
with plastic enclosures, wrap aluminum foil
around the case and connect the test lead to
the foil.
The Case Leakage Current is measured
through the test lead cable. Connect the test
Lead to the case of the DUT(Device under
test). The leakage measurement is made
when the Ground switch is momentarily
opened. The LCD will display the
measurement in Micro Amps.
Both Earth and Case Leakage Current
measurements should be made in all power
switch combinations with the Polarity switch
in Normal and Reverse, and the Neutral
switch Open and with the DUT On and Off.
