User Manual

Teledyne LeCroy
Sequence Mode in WaveSurfer 3000 Oscilloscopes
page | 2 of 4
Sequence Mode can be accessed by tapping the Timebase descriptor box or by opening the Timebase pulldown
menu and clicking Horizontal Setup. On the Timebase tab, select Sequence under Sampling Mode. This will
create a new tab in the Timebase dialog box labeled Sequence.
Figure 2: Upon invoking the Sequence Mode option in the Timebase tab, users are presented with the
controls dialog at the bottom of the screen.
The first section on the left side of the Sequence tab is Acquisition Settings. Touching the Number of Segments
button twice brings up a dialog box that allows setting of how many acquisitions (or segments) the oscilloscope
will make in Sequence mode. This can range from a minimum of two to a maximum of 1,000; the default number
is 10. Regardless of the number of segments, the oscilloscope will acquire data until reaching that number, until
reaching the timeout (described next), or the user presses the front-panel Stop button. Next to the Acquisition
Settings section is the Sequence Timeout section. Here, the user may instruct the oscilloscope to stop acquiring
data if a preset time period passes without a trigger event.
Segments are shown using an adjacent display, with each segment shown next to the previous segment. For long
captures of many segments, the Zoom function can be used to show individual segments.
Displaying More Information
Also within the Display Settings section of the Sequence tab is the option to Show Sequence Trigger Times.
Tapping this button brings up an entirely new Trigger Times dialog box shown in Figure 3.