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Measuring Inrush Current
Inrush current is surge current that occurs when an electrical device is first
powered on. Once the device has reached its normal working condition,
the current stabilizes.
To capture the inrush current reading:
1. Make sure that the system to be tested has been turned off.
2. Make sure that all the test leads have been removed from the meter.
Then set the rotary switch to desired current range position ( "
" or " " position ).
3. Press the Function Selector Button until the symbol " "
appears on the screen. Now the meter is in the inrush current
measurement function.
4. With the system under test powered down, place the source wire into
the Meter jaws. Make sure that the jaws are perfectly closed.
Note:
Only one wire should be clamped. Measuring two or more wires at the
same time will produce wrong reading.
The wire to be tested should be positioned at the center of the jaws.
5. Power up the system under test. The value of inrush current is shown
and held on the display.
Measuring Resistance
1. Connect the black test lead to the " COM " terminal, and the red test
leads to the " INPUT " terminal.
2. Set the rotary switch to the position.
3. Press the Function Selector Button until the screen shows a resistance
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