User manual

PSO2020
User’s Manual 26
from 4ns/div to 1hour/div.
In the “Format” menu of the “Horizontal” menu, select the display mode to Y-T.
3.4 Set Trigger System
Click “Trigger” in main menu.
The trigger determines when the oscilloscope starts to acquire data and display a
waveform. When a trigger is set up properly, it can convert unstable displays or blank
screens into meaningful waveforms.
If the oscilloscope wants to acquire a waveform, it collects enough data so that it can draw
the waveform to the left of the trigger point. The oscilloscope continues to acquire data
while waiting for the trigger condition to occur. The oscilloscope continues to acquire
enough data so that it can draw the waveform to the right of the trigger point after it
detects a trigger.
The Edge trigger determines whether the oscilloscope finds the trigger point on the rising
or the falling edge of a signal. Select Edge trigger mode to trigger on Rising edge or
Falling edge.
Mode: Select the trigger mode.
The oscilloscope only provides edge trigger mode.
Sweep: Set the sweep mode to Auto, Normal or Single.
Auto: Acquire waveform even no trigger occurred
Normal: Acquire waveform when trigger occurred.