4.13 MEASURING FREQUENCY
4.13.1 By A range (from current clamp):
WARNING
Beware of Electrocution.
Ensure that the test leads are disconnected from the meter
before making current clamp measurements.
4.13.1.1 Set the rotary selector to the A
range ( A
or A
)
position.
4.13.1.2 Press the trigger to open jaw. Fully enclose only one
conductor.
4.13.1.3 Press the "Hz/%" to switch to the frequency measurement.
4.13.1.4 Take the reading on the LCD.
NOTE:
1) Do not put more than one cable into the jaw during test,
otherwise incorrect test value might be obtained.
2) Frequency test range is 10Hz - 1kHz. ‘00.0’ will be displayed
on LCD if the test frequency is lower than 10.0 Hz. It is
possible to test the frequency which is higher than 1 kHz but
the tolerance of the test result can not be ensure.
3) “ ” means the maximum input current is 400A rms AC.
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4.13.2 By V range:
WARNING
Beware of Electrocution.
Pay special attention to avoid electric shock when measuring
high voltage. Do not input the voltage which more than
750V rms AC.
4.13.2.1 Plug the black test lead into the COM jack and the red test
lead into the INPUT jack.
4.13.2.2 Set the rotary selector to the range position.
4.13.2.3 Press the "Hz/%" key to switch to frequency
measurement.
4.13.2.4 Connect test leads to the two ends of the source or load for
measurement.
4.13.2.5 Take the reading on the LCD.
NOTE:
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correct incorrect
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