RIGOL  Chapter 5 To Trigger the Oscilloscope 
5-28    DS2000E User’s Guide 
Source B: 
Press SourceB to select CH1 or CH2 as the trigger source of signal source B. For the 
details, please refer to the introduction in "
Trigger Source". The signal source 
currently selected is displayed in the upper-right corner of the screen. 
Note: Select channel with signal input as trigger source to obtain stable trigger. 
 
Edge B: 
Press EdgeB to select the trigger edge type of signal source B in delay trigger. It can 
be set to the rising edge (
) or falling edge ( ). 
 
Delay Type: 
Press DelayType to set the time limit condition of delay trigger. 
  >: trigger when the time difference (△T) between the specified edges of source 
A and source B is greater than the preset time limit. Press Time and use   or 
the inner knob of the navigation knob to adjust the delay time of delay trigger at 
a relatively smaller step or use the outer knob of the navigation knob to adjust 
the delay time of delay trigger at a relatively larger step. The settable range is 
from 2 ns to 4 s. 
  <: trigger when the time difference (△T) between the specified edges of source 
A and source B is lower than the preset time limit. Press Time and adjust the 
delay time of delay trigger using 
 or the navigation knob by referring to the 
method mentioned above. The settable range is from 2 ns to 4 s.  
  <>: trigger when the time difference (△T) between the specified edges of 
source A and source B is greater than the lower limit of the preset time and 
lower than the upper limit of the preset time. Press Upper Limit and adjust the 
delay time upper limit of delay trigger using 
 or the navigation knob by 
referring to the method mentioned above; the settable range is from 12 ns to 4 
s. Press Lower Limit and adjust the delay time lower limit of delay trigger using 
 or the navigation knob by referring to the method mentioned above; the 
settable range is from 2 ns to 3.99 s.  
Note: The time lower limit must be lower than the time upper limit. 
  ><: trigger when the time difference (△T) between the specified edges of 
source A and source B is lower than the lower limit of the preset time or greater 
than the upper limit of the preset time. Press Upper Limit and adjust the delay 
time upper limit of delay trigger using 
 or the navigation knob by referring to 
the method mentioned above; the settable range is from 12 ns to 4 s. Press 
Lower Limit and adjust the delay time lower limit of delay trigger using   or