21
Frequency counting and measurement of duty ratio
1. Insert the banana plug of the black test lead into the negative "COM" socket, and the red plug into the positive
"VΩCap" socket as required for measurement.
2. Rotate the knob to select the "
" file.
3. Press the F3 key (SEL) to select extended functions: frequency and duty cycle.
Attention!
During frequency and duty cycle measurement, the signal must reach a certain amplitude: the
voltage signal amplitude is 500m Vp-p; for signals close to 5MHz or higher frequency, a signal with
a higher amplitude may be required.
Attention!
You cannot use the manual method when performing frequency measurement and duty cycle
measurement!
