1) Turn the rotary switch to the gear position.
2) Insert the black test lead into the COM jack and the red test lead into
the jack.
3) After the capacitor is completely discharged, the other end of the black test pen
is connected to the measured capacitance. And the measured capacitance value is read
by the liquid crystal display.
Note
：
1) To improve the accuracy of the measured value below 10nF, the distributed capacitance of
the meter and conductor should be subtracted.
2) When measuring large capacitance, it takes some time to stabilize the reading.
3) Measure the polarity of the capacitor, pay attention to the corresponding polarity, to
avoid damage to the instrument.
4.14 Frequency and duty cycle measurements
1
）
Through AC voltage range
：
Warning
Risk of electric shock.
When measuring high voltage, pay special attention to avoid
electric shock. Do not enter voltages above 600V AC rms to prevent
electrical shock or damage to the meter.
Do not apply more than 600V AC rms voltage between the common
and the earth to prevent electrical shock or damage to the
instrument.
1) Place the changeover switch in the AC voltage range.
2) Connect the red and black test leads to COM and the input socket
respectively.
3) Press the "FUNC" key to switch to the frequency measurement state
4) with the other end of the test pen and then connected to the voltage source or load
at both ends of the measurement.
5) Read the measured frequency value from the LCD monitor.
6) Press "FUNC" again to enter the duty cycle measurement state.
Note
：
⑴
frequency measurement range of 10Hz ~ 10kHz, if the measured frequency is lower than
10Hz, the LCD display "00.0"; measuring less than 10kHz frequency is possible, but does
not guarantee the measurement accuracy. 20