B&K Precision 2552-2559 - Manual - Manual (Page 69)

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Trigger Holdoff
You can use the Trigger Holdoff function to produce a stable display of
complex waveforms. Holdoff is time between when the oscilloscope
detects one trigger and when it is ready to detect another. The oscilloscope
will not trigger during the holdoff time. For a pulse train, you can adjust the
holdoff time so the oscilloscope triggers only on the first pulse in the train.
Holdoff time
Trigger position
Trigger level
Figure 38 - Trigger Holdoff
If you want to change holdoff time, please follow the steps below:
1. Press the “TRIG MENU” button to show the “TRIG
Menu”.
2. Press the “Type” option button to select trigger type.
3. Press the “Set Up” option button to enter the
Note: ● Press the SINGLE button when you want the oscilloscope to
acquire a single waveform.
● Trigger coupling affects only the signal passed to the trigger
system. It does not affect the bandwidth or coupling of the
signal displayed on the screen.
● Normal Polarity Sync triggers always occur on negative-going
horizontal sync pulses. If the video waveform has positive-going
horizontal sync pulses, use the Inverted Polarity selection.