UTD2000 Series User Manual 
45 
 
  Chapter XI   Other funtion botton 
 
11.1 AUTO   
 
figure 11-1 Function Key of RUN/STOP and AUTO 
As shown in above figure, automatic setup is to simplify operation. Digital storage 
oscillograph can adjust vertical deflection coefficient and horizontal time base gear 
automatically for stable waveform display on the screen according to waveform amplitude 
and frequency when user presses AUTO key. System setup is shown in following form 
during automatic setup: 
Function Setting 
Obtainment mode    Sampling 
Display format  Set to YT 
Horizontal position  Automatic adjustment 
Second/Divs  Adjustment according to signal frequency 
Hold off  The minimum value 
Trigger level  Set to 50% 
Trigger mode  AUTO 
Trigger source  Set to CH1; Set to CH2 when exerting on 
signal for it if there is no signal for CH1; 
Trigger gradient    Ascending 
Trigger type  Edge 
Vertical band width  All 
Volt/Divs  Adjustment according to singnal amplitude 
 
11.2 RUN/STOP 
  There is a button on the
 top right hand corner on the front panel : RUN/STOP . 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. 
  Acquire waveform continuously or stop acquisition. If you want the oscilloscope to 
acquire waveform continuously, press RUN/STOP once. Press the button again to stop 
acquisition. You can use this button to switch between acquiring and stop acquiring 
waveform. In the Run mode, a green light comes on and AUTO appears on the screen. In 
the STOP mode, a red light comes on and STOP appears on the screen.