Chapter 1 Quick Start    RIGOL 
MSO4000/DS4000 User’s Guide  1-23 
AUTO 
 
 
Press this key to enable the waveform auto setting function. 
The oscilloscope will automatically adjust the vertical scale, 
horizontal time base, trigger mode and so on according to the 
input signal to realize optimum waveform display. Besides, 
the quick parameter measurement function is also provided 
(for more details, refer to “Quick Measurement after 
AUTO”). 
 
Note: The waveform auto setting function requires that the 
frequency of sine should be no lower than 20 Hz. If the 
parameter exceeds this limit, the waveform auto setting 
function might be invalid. 
 
 
RUN/STOP 
 
 
Press this key to set the state of the oscilloscope to “RUN” or 
“STOP”. In “RUN” state, the key is illuminated in yellow and 
red in “STOP” state. 
 
 
SINGLE 
 
 
Press this key to set the trigger mode to “Single”. In single 
trigger mode, the oscilloscope generates a trigger when the 
trigger conditions are met and then stops. When the 
oscilloscope is in wait-for-trigger state (the key is illuminated 
in orange), pressing FORCE will generate a trigger signal 
immediately. 
 
 
 
 
 
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