Data Sheet

5 To Trigger the Oscilloscope RIGOL
MSO4000D/S4000 User’s Guide
5-13
Runt Trigger
Runt trigger is used to trigger pulses that pass one trigger level but fail to pass the
other one, as shown in the figure below.
Trigger Type:
Press Type to select “Runt”. At this point, the trigger setting information as shown in
the figure below is displayed at the upper right corner of the screen.
Source Selection:
Press Source to select CH1 to CH4 as the Trigger Source. The current trigger
source is displayed at the upper right corner of the screen.
Note: Select the channel with the signal input as the trigger source to obtain stable
trigger.
Pulse Polarity:
Press Polarity to select the pulse polarity of runt trigger.
 : positive polarity. The instrument triggers on the positive runt pulse.

: negative polarity. The instrument triggers on the negative runt pulse.
Qualifier:
Press Qualifier to set the trigger conditions of runt trigger.
 None: do not set the trigger condition of runt trigger.
 >: press Lower Limit to set the minimum pulse width of runt trigger. The
range available is from 4 ns to 4 s.
 <: press Upper Limit to set the maximum pulse width of runt trigger. The
range available is from 4 ns to 4 s.
 <>: press Upper Limit to set the maximum pulse width of runt trigger and the
range is from 12 ns to 4 s. Press Lower Limit to set the minimum pulse width