10
I
KING INNOVATION
KING INNOVATION
I
11
MILLIAMP CLAMP METER
INSTRUCTION MANUAL
5-4
BACKLIGHT
Function
When the “
☼
“ button is pressed, the backlight will be
turned on. Press the button again to turn the backlight off.
If the button is not pressed again then the backlight will
be automatically turned off in about 30 seconds after it’s
turned on.
6. MEASURING INSTRUCTION
6-1 ACA, ACmA Measurement:
(1) Set the range selector switch to the desired position.
The current to be measured should be within the measuring
range.
(2) Normal measurement (see Fig. 1):
Press the clamp opening handle to open the clamp
meter 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.
NOTE
: Keeping the cable in the center of the clamp will
return more accurate test results when making current
measurements. Zero meter to accurately measure low
milliamp circuits.
(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
Fig. 2 Measuring out of balance leakage current:
LOAD
3-Phase 3-Wire System
Single-Phase 2-Wire System
LOAD
