Datasheet

3. Press the “Default” button at the upper-right hand sided on the
oscilloscope, then press the “Autoset” to adjust the horizontal time ,
Time/Div, to 2us/div .
4. Modify the knob of triggering level to above 600mV to maintain the
stability of the displayed waveform.
Adjust the knob
Trigger level
>600
mV