Basic Operation 
DSO1000B Series HandHeld Oscilloscope User Manual              26 
Trigger When: The pulse width of the source must be ≥5ns so that the oscilloscope can detect the 
pulse. 
 
, ≠: Within a ±5% tolerance, triggers the oscilloscope when the signal pulse width is equal to 
or not equal to the specified pulse width.   
<,  >: Triggers the oscilloscope when the source signal pulse width is less than or greater 
than the specified pulse width. 
Slope Trigger: Judges trigger according to the time for rising or falling, more flexible and accurate 
than the Edge trigger.   
Slope     
Source 
CH1 
CH2 
Select the input source as the trigger signal. 
Slope 
Rising 
Select the slope type of signal. 
Mode 
Auto 
Normal 
Select the type of trigger. The Normal mode is best for 
most pulse width trigger applications. 
Coupling 
AC 
DC 
Noise Reject 
HF Reject 
Selects the components of the trigger signal applied to 
the trigger circuitry. 
Adjust the vertical window by setting two trigger levels. 
Select this option and press F3 to choose V1 or V2.   
When 
= 
≠ 
Select the trigger condition. 
Triggers when pulse is 
equal to width setting ±5%
Triggers when pulse is 
greater than width setting
Triggers when pulse is not
equal to width setting ±5%