Promax PD-183, Инструкция по эксплуатации

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USER’S MANUAL PD-183
Page 18 07/2015
5. When a high logic level is measured, it will be indicated in LCD
display with value 1, whereas a low logic level is indicated with value
0.
4.10 Frequency and duty cycle measurements
1. Set the rotary selector to the
Hz position for the Frequency
measurement.
2. Connect the red test lead to the V /
Ω/
Hz jack and the black test
lead to the COM jack.
3. Connect the test leads to the point of measurement and read the
frequency from the display.
4. In order to make the duty cycle measurement, set the rotary
selector to the DUTY % position. The duty cycle value will appear in
LCD display.