Instructions
Chapter 5 To Trigger the Oscilloscope    RIGOL 
MSO5000 User's Guide  5-23 
  <>: triggers when the runt pulse width is greater than the lower limit and 
smaller than the upper limit of pulse width. Press Upper to set the maximum 
pulse width of Runt trigger. Press Lower to set the minimum pulse width of 
Runt trigger.   
Note: The lower limit of the pulse width must be smaller than the upper limit. 
Level Selection and Adjustment of Trigger Level: 
After the trigger condition setting is completed, you need to adjust the trigger level 
to  correctly  trigger  the  signal  and  obtain  a  stable waveform.  Press  Level  Select 
(when "<>" is selected as the trigger condition, Level Select is a sub-menu under 
More), then rotate the multifunction knob    to select the desired  level type for 
adjustment, and then press down the knob to select the type. You can also press 
Level Select continuously to select the level type or enable the touch screen to tap 
the desired level type and select it.   
Level A: only adjusts the upper limit of the trigger level, and the lower limit of the 
trigger level remains unchanged. 
Level B: only adjusts the lower limit of the trigger level, and the upper limit of the 
trigger level remains unchanged. 
Level AB: adjusts the upper and lower limits of the trigger level at the same time, and 
the trigger level deviation (the difference between the upper limit and lower limit of 
the trigger level) remains unchanged. 
Note: In Runt trigger, pressing Trigger    LEVEL can quickly switch the current 
level adjustment type.   
Rotate the Trigger    LEVEL knob to adjust the corresponding trigger level. 
During the adjustment of trigger level, two trigger level lines appear on the screen, 
and they move up and down with the change of the trigger level. At the same time, 
the real-time trigger level information is displayed at the lower-left corner of the 
screen (as shown in the figure below, H indicates the upper limit of the trigger level, 
L indicates the lower limit of the trigger level, and  △  indicates the trigger level 
deviation). When you stopping modifying the trigger level, the trigger level line and 
the trigger level information at the lower-left corner of the screen disappear in about 
2 s. The current trigger level deviation is displayed at the upper-right corner of the 
screen. 
Trigger Mode: 
In the trigger control area (Trigger) on the front panel, press Mode to quickly switch 
the current trigger mode. For details, refer to descriptions in "Trigger Mode". 
Trigger Parameter Setting: 
Set the trigger parameters  (trigger holdoff  and noise rejection) under  this  trigger 










