UTD2000 Series User Manual 
50 
Chapter XI  Other function botton 
11.1 AUTO Setting 
Based  on  input  signals,  Auto  Setting  selects  appropriate  time-based  scale,  Volt/Divs, 
trigger  based to display  waveform  on  the screen  automatically.  Press  AUTO  to  enter 
automatic setting. 
AUTO Setting is only applicable to conditions below: 
1) AUTO Setting is only applicable to signals with simple and single frequency. AUTO
Setting is not effective for those complicated waveform.
2) The frequency of measured signal is not less than 20Hz, and the amplitude is not
less than 30mVpp.
Auto adjustment according to signal frequency. 
Auto adjustment according to signal frequency. 
Set to CH1. If there is no signal for CH1 and a signal is 
exerted on CH2, then set to CH2. 
Auto adjustment according to singnal amplitude. 
NOTE: When AUTO strategy is set as default, it outpus above auto setting. 
11.2 RUN/STOP 
RUN/STOP button is on the front panel of DSO. When this button is pressed and a green 
indicator lights up, your oscilloscope is in a running status, if a red light comes on after 
pressing this button, it indicates the unit has stopped operation. In running status, the DSO 
consecutively collects waveform and the screen displays “AUTO”, while in stopping status, 
the DSO stops collecting waveform and the screen displays “STOP”. Press RUN/STOP to 
switch between stopping and running.