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(3) Trigger Control
① LEVEL ：Adjusting the trigger level. Turn clockwise to increase
the level and turn counterclockwise to decrease the level. During
the adjustment, the trigger level at the top right corner of the
screen will change accordingly. Press this
knob to quickly reset the trigger level back to 50% trigger signal
position.
② TRIG MENU ：Press to display the trigger menu. For more
details, please refer to “Trigger Setting”.
③ DECODE：Set bus decoding, the specific refer to “DECODE”.
(4) Auto Setting
Press this key to enable the auto setting function. The oscilloscope will automatically adjust
the vertical scale, scan timebase and trigger mode according to the input signal to realize
optimum waveform display.
Note：Waveform auto setting function requires that the frequency of sine is no lower than 20 Hz; the
amplitude must be at least 20 mVpp~120 Vpp. Otherwise, the waveform auto setting function may
be invalid.
(5) Run/Stop
Press this key set the operating state to "RUN" or "STOP".
In the "RUN" state, the key is illuminated in green.
In the "STOP “state, the key is illuminated in red.
(6) PrintScreen
Press this knob to save waveform as bmp format image into USB device.
(7) Multipurpose Knob
Multipurpose：Turn the knob to select sub-menu, then press the knob to confirm the selection.
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