Clamp Meter
8
6. MEASURING INSTRUCTION
6-1
AC A and AC mA measurement:
1.
Set the range selector switch to the desired position. The
current to be measured should be within the selected measuring
range.
2.
Normal measurement (see Fig.1):
Press the jaw trigger to open the clampmeter jaws and close them
over one conductor only. The measured current value is shown on the
display. Earth leakage current or any small AC current that flows
through a ground wire can also be measured by this method.
3.
Measuring out of balance leakage current (see Fig.2):
Clamp onto all conductors except the ground wire. The measured
imbalance current value is shown on the display.
Before this measurement, disconnect any test leads from the meter
for safety.
In some cases wherein reading the display is difficult, press the HOLD
button and read the result after the clamp is removed from the
conductors.
Fig.1 Normal measurement:
INCORRECT
CORRECT
