- 33 -
6.5.6 Runt trigger
The runt trigger records pulses that run through one trigger level, but not through another, as
shown in the graphic.
In runt trigger mode, the setting information is shown at the bottom right of the screen, e.g:
indicates that the runt trigger on CH1 with positive polarity has been selected
and the difference between the up-level and low-level threshold value is 0.00mV.
Runt trigger menu
:
Menu
Settings
Description
Trigger Mode
Runt
Set vertical channel trigger type as runt trigger.
Source
CH1
CH2
CH3
CH4
Select CH1 as the trigger source
Select CH2 as the trigger source
Select CH3 as the trigger source
Select CH4 as the trigger source
Threshold
Up Level
Low Level
Click
or
to set the up level threshold.
Click
or
to set the low level threshold.
Condition
Polarity
Positive Polarity, the oscilloscope triggers on the
positive runt pulse.
Negative Polarity, the oscilloscope triggers on the
negative runt pulse.
Click
or
to set pulse width, click
to move
cursor to choose which digit to be set.
Trigger when runt pulse is greater than the set pulse
width.
Trigger when runt pulse equals to the set pulse width.
Trigger when runt pulse is lower than the set pulse
width.
Mode
Holdoff
Auto
Normal
Single
Holdoff
Acquire waveform even no trigger occurred
Acquire waveform when trigger occurred
When trigger occurs, acquire one waveform then stop
100 ns - 10 s, click
or
to set time interval before
another trigger occur, click
to move cursor to
choose which digit to be set.
