RIGOL  Chapter 5 To Trigger the Oscilloscope 
5-10    DS2000E User’s Guide 
Pulse Trigger 
 
In pulse trigger mode, the oscilloscope will trigger when the pulse width of the input 
signal satisfies the specified pulse width condition. 
 
Trigger Type: 
Press Type, rotate   to select "Pulse" 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 pulse trigger; the trigger source is CH1; the trigger 
level is 0.00 V. 
 
Source Selection: 
Press Source to select CH1, CH2, or EXT. 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. 
Note: Select channel with signal input as trigger source to obtain stable trigger.  
 
Pulse Condition:   
In this oscilloscope, positive pulse width is defined as the time difference between 
the two crossing points of the trigger level and positive pulse; negative pulse width is 
defined as the time difference between the two crossing points of the trigger level 
and negative pulse, as shown in the figure below. 
 
Figure 5-3 Positive Pulse Width/Negative Pulse Width 
 
Press When to select the desired pulse condition. 
  : trigger when the positive pulse width of the input signal is greater than 
Positive 
pulse width 
Negative 
pulse width