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9. AC TRUE RMS CURRENT MEASUREMENT

! !

WARNING: Ensure that the test leads are

disconnected from the meter before making

current measurements.

1. Set the function switch to

range position, and make sure that the current

40A

under test does not exceed the upper limit of

the measuring range you have selected.

2. Press the trigger to open up the transformer

jaws and clamp around the single conductor

under test.

3. Read the display.

Note: • During current measurements keep the

transformer jaws fully closed, otherwise

will affect the accuracy of the

measurement.

• When large currents the transformer

jaws may buzz. This is not a fault and

does not affect the accuracy of the

reading.

Correct Current

Measurement

1000A

Incorrect Current

Measurement

400A

this