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OWON HDS1021M Handheld DSO & DMM 8-Advanced Function of Oscilloscope
figure 35: Edge Trigger
8.4 Triggering Control
There are two triggering modes including Edge triggering and Video triggering. Each trigger
mode is set by different function menu.
Edge triggering: It occurs when the trigger input passes through a given level along the specified
direction.
Video triggering: Perform video field trigger , line trigger, odd field trigger, even field trigger or
line NO. trigger on the standard video signals.
The following describes the Edge triggering and Video triggering menus respectively.
8.4.1 Edge Triggering
The Edge triggering is a mode by which trigger occurs at the triggering threshold value of the
input signal edge. With the Edge triggering selected, the trigger happens on the rise or fall edge
of the input signal, shown as figure 35.
The Edge triggering menu is described in the following table.
Function menu Settings Description
Slope
Rising
Falling
Triggering on the rise edge of the signal.
Triggering on the fall edge of the signal.
Mode
Auto
Normal
Single
Acquisition of waveforms is possible even if there is no
triggering condition detected.
Acquisition of waveforms can only be done when the
triggering condition is satisfied.
The sampling is performed on a waveform when one trigger is
detected, then stop sampling.
Sens 0.2~1.0div Set trigger sensitivity.
Holdoff To go to holdoff menu
３８
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