RIGOL MSO/DS2000A Series - Manual (Page 99)

Chapter 5 To Trigger the Oscilloscope RIGOL
MSO2000A/DS2000A User’s Guide 5-13
Runt Trigger
This trigger mode is used to trigger pulses that pass through one trigger level but
fails to pass through the other trigger level as shown in the figure below.
Figure 5-4 Runt Trigger
Trigger Type:
Press Type, rotate
to select “Runt” and press down . At this point, the trigger
setting information is displayed at the upper right corner of the screen. For example,
. The trigger type is runt trigger; the trigger source is CH1; the
difference between the upper limit of trigger level and the lower limit of trigger level
is 3.06 V.
Source Selection:
Press Source to switch the signal source list between CH1 and CH2. For the details,
please refer to the introduction in “Trigger Source”. The current trigger source is
displayed at the upper right corner of the screen.
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.
 >: trigger when the runt pulse width is greater than the lower limit of pulse