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Auto: When the oscilloscope meets the trigger condition, it completes a trigger acquisition once; when
the trigger condition is not met, it can run the acquisition waveform freely.
Normal: When the oscilloscope meets the trigger condition, the input waveform is displayed; when the
trigger condition is not met, the original waveform is displayed.
8. Press the Holdoff softkey and turn V0 to set the time that the oscilloscope waits before a trigger to
the next trigger, so that complex waveforms are displayed stably.
2.7.6. Window Trigger
Windows trigger provides a high trigger level and a low trigger level. The instrument triggers when the
input signal passes through the high trigger level or the low trigger level.
⚫ If the lower and the upper trigger levels are both within the waveform amplitude range, the
oscilloscope will trigger on both rising and falling edge.
⚫ If the upper trigger level is within the waveform amplitude range while the lower trigger level is out
of the waveform amplitude range, the oscilloscope will trigger on rising edge only.
⚫ If the lower trigger level is within the waveform amplitude range while the upper trigger level is out
of the waveform amplitude range, the oscilloscope will trigger on falling edge only.
1. Press the [Trig Menu] button on the front panel to enter the Trigger function menu.
2. Press the Type softkey, then use the Multifunctional Knob to select Window and push down the
knob to confirm.
3. Press the Source softkey, turn the Multifunctional Knob to select CH1~CH2 as the trigger source.
4. Press Level softkey to select Lower or Upper trigger level or both levels, then turn the Trigger Level
Knob to adjust the position. The trigger level values are displayed at the upper right corner of the
screen. The trigger different level value between Upper and Lower is displayed at the upper right
corner of the screen.
The Lower trigger level cannot be upper than the upper trigger level. V1 means the upper trigger level
while V2 means the lower trigger level.
5. Press the Mode softkey, turn V0 to select the trigger mode (auto, normal), and press V0 to confirm.
Auto: When the oscilloscope meets the trigger condition, it completes a trigger acquisition once; when
the trigger condition is not met, it can run the acquisition waveform freely.
Normal: When the oscilloscope meets the trigger condition, the input waveform is displayed; when the
trigger condition is not met, the original waveform is displayed.
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