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User Manual
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2.7.1. Edge Trigger
Edge trigger distinguishes the trigger points by seeking the specified edge (rising, falling, rising & falling) and trigger level.
1. Press the [Trig Menu] button on the front panel to enter the Trigger system function menu.
2. Press the Type softkey, turn the Multifunctional Knob to set select “Edge” and then press the knob to confirm.
3. Press the Source softkey, turn the Multifunctional Knob to select CH1~CH2 or External or Line as the trigger source.
CH1~CH2: Analog channel.
External: External trigger input, it is on the front panel of the oscilloscope. The external trigger signal must be a 0-3.3V [CMOS]
waveform.
Line: Trigger on the 50% level of the AC power signal.
4. Press the Slope softkey, turn the Multifunctional Knob to select the desired trigger edge (rising, falling or rising & falling),
and then press down the knob to confirm.
5. Turn the Trigger Level Knob to adjust the trigger level to obtain stable trigger.
6. Press of 50% softkey to set the trigger level to the vertical midpoint between the peaks of the trigger signal. The trigger level
values are displayed at the upper right corner of the screen.
7. 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.
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.
Note: Press the [Auto Set] button will set the trigger type to Edge and slope to rising.
Trigger Level
Indicates Trigger Points
Holdoff
Holdoff
Acquisition Interval
Acquisition Interval
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