Specifications
Mode Positive pulse or Negative pulse
Pulse Width Trigger 
Point
Equal:   The   oscilloscope   triggers   when   the   trailing   edge   of   the   pulse 
crosses the trigger level.
Not Equal: If the pulse is narrower than the specified width, the trigger 
point  is the trailing edge. Otherwise, the oscilloscope triggers when a 
pulse continues longer than the time specified as the Pulse Width.
Less than: The trigger point is the trailing edge.
Greater   than   (also   called   overtime   trigger):   The   oscilloscope   triggers 
when   a   pulse   continues   longer   than   the   time   specified   as   the   Pulse 
Width.
Pulse Width Range Selectable from 20ns to 10s
Slope Trigger
Slope Trigger Mode Trigger when < (Less than), > (Greater than), = (Equal), or ≠ (Not Equal); 
Positive slope or Negative slope
Slope Trigger Point Equal: The oscilloscope triggers when the waveform slope is equal to the 
set slope.
Not Equal:  The  oscilloscope  triggers when  the waveform slope  is  not 
equal to the set slope.
Less than: The oscilloscope triggers when the waveform slope is  less 
than the set slope.
Greater   than:   The   oscilloscope   triggers   when   the   waveform   slope   is 
greater than the set slope.
Time Range Selectable from 20ns to 10s
Overtime Trigger The leading edge: Rising edge or Falling edge; Time Setting: 20-10s
Swap Trigger
CH1 Internal Trigger: Edge, Pulse Width, Video, Slope
CH2 Internal Trigger: Edge, Pulse Width, Video, Slope
Trigger Frequency 
Counter
Readout Resolution 6 digits
Accuracy (typical) ±30ppm (including all frequency reference errors and ±1 count errors)
Frequency Range AC coupled, from 4Hz minimum to rated bandwidth
Signal Source Pulse Width or Edge Trigger modes: all available trigger sources
The Frequency Counter measures trigger source at all times, including 
when   the   oscilloscope   acquisition   pauses   due   to  changes   in   the   run 
status, or acquisition of a single shot event has completed.
Pulse Width Trigger mode: The oscilloscope counts pulses of significant 
magnitude inside the 1s measurement window that qualify as triggerable 
events, such as narrow pulses in a PWM pulse train if set to < mode and 
the width is set to a relatively small time.
DSO5000 Series Digital Storage Oscilloscope User Manual                                            71