ZEEWEII DSO1C81, Руководство пользователя, Страница: 9 / 14

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6.2 Trigger Mode
Trigger mode: “auto”, “normal”, “single”. Automatic triggering is more commonly
used. The normal trigger will not refresh the screen when there is no waveform,
suitable for measuring some pulse signals that come occasionally, etc., and refresh
the waveform once in a pulse. The single-trigger procedure is described in 7.2 below.
7 Operation Guide
7.1
50%
The role of 50% is to quickly return to the center, including zero point offset,
trigger position, trigger level will quickly return to the middle position with one
button, operation method: Func->50%( "left"button
 ).
7.2 Single trigger
Suitable for sporadic single pulse capture.
A single trigger is when the single button is pressed, and the oscilloscope
samples a frame of waveform and then stops. That is, only one frame of
waveform is taken per press. It is important to note that this sampling must be
triggered, if it is not triggered, the upper left corner of the oscilloscope flashes
"||", and the sampling is not completed until there is a waveform trigger. To
cancel a single trigger, click "Stop" button to stop.
Procedure:
1.Probe connect the signal first.
2. mV/V set the voltage sensitivity, s/ns set the time base.
3. Set the trigger level to "manual" and adjust the trigger level (press
Func+up/down to move trigger leve).
4. Press the “Func” key then press “OK” key.
5. The oscilloscope waits for the signal to arrive, and once a waveform
crosses the trigger level, the oscilloscope completes a sample and then stops.
7.3
Screenshot
Click the Func->mV(Save) button to capture the current screen.
7.4 View images
After pressing the Func key, then press the “right”key(View) to enter the Image
View window. In this window, the user can delete or browse historical screenshots.
Click the
“RunStop”
button to delete the current screenshots.