5.6 Runt Trigger Menu
The runt trigger is used to trigger a pulse that has crossed one trigger level but not the other. In this oscilloscope, the
positive runt pulse is the pulse that crosses the lower limit of the trigger level but does not cross the upper limit of the
trigger level; the negative runt pulse is the pulse that crosses the upper limit of the trigger level but does not cross the
lower limit of the trigger level, as shown in the following figure.
Press TRIG MENU type , and select runt by the Multipurpose knob. You can also switch the trigger type by
consecutively pressing the type key, then press the Multipurpose knob to confirm.
At this time, the trigger setting information is displayed at the upper right corner of the screen, the trigger type is runt, the
trigger source is CH1, and the low level of the trigger level is -760mV.
Runt Trigger Menu
Source:
Press the source button to select any of CH1, CH2, CH3, and CH4. The currently selected source is displayed at the upper
right corner of the screen.
Note: Only selecting the channel with connected signals as a trigger source can obtain a stable trigger.
Polarity:
Press the polarity button to select the trigger polarity of positive and negative.
(1) Positive: Set to trigger on the positive runt pulse.
(2) Negative: Set to trigger on the negative runt pulse.
Trigger Setting:
Please refer to the Trigger Setting in the Edge Trigger section for more details.
Condition:
Press the condition button to select the condition: None, ">", "<", "=".
(1) None: Does not set the runt pulse trigger condition.
(2) >: Triggers when the runt pulse width is greater than the set pulse width.
(3) <: Triggers when the runt pulse width is less than the set pulse width.
(4) =: Triggers when the runt pulse width is equal to the set pulse width.
Setting:
Press the PgDn key and adjust the Multipurpose knob to set the time.
Trigger Level:
Press PgDn trigger level to select low/high level as trigger level. You can also directly press the LEVEL
knob in the trigger control area to quickly switch between selections.
(1) Low level: The low level of the runt trigger can be adjusted by the LEVEL knob.
(2) High level: The high level of the runt trigger can be adjusted by the LEVEL knob.
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