MENU: press this key to open the trigger operation menu. This
oscilloscope provides various trigger types.
FORCE: press this key to generate a trigger signal forcefully.
CLEAR
Press this key to clear all the waveforms on the
screen. If the oscilloscope is in “RUN” state, new
waveforms will still be displayed.
function. The oscilloscope will automatically
adjust the vertical scale, horizontal time base and trigger mode
according to the input signal to realize optimum waveform display.
Note: auto setting requires that the frequency of the signal under
test should be no lower than 50 Hz, the duty cycle be greater than
1% and the amplitude be at least 20 mVpp. If the parameters
exceed these limits, “Auto detected none!” would be displayed
after pressing this key and the quick parameter measurement
menu might not be displayed.
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