8. Name your screen capture by typing a name in the Name text box, or select an existing name from the file list (data in the
existing file will be overwritten). You can also select the Auto-increment file name check box to save a series of files without
typing in a new name each time.
9. Click Save.
Using horizontal delay
Set the horizontal delay
Use the following steps to set up the horizontal delay mode of the instrument.
1. Open the Horizontal/Acquisition Setup control window.
2. Open the Horizontal tab.
3. Turn on the Horizontal Delay mode by clicking Delay Mode on or pressing the front panel Delay button.
4. Click in the Horiz Delay entry box and use the multipurpose knobs to set the delay time and reference point (Ref Point). To
view data before the trigger event, enter a negative value; to view data after the trigger event, enter a positive value.
TIP. You can also use the horizontal delay with complex trigger events in the Trigger Setup control window by clicking the A-
>B Seq tab and configuring the horizontal delay.
Compare data using horizontal delay
After setting up the instrument to use the horizontal delay, press the front panel Delay button to toggle the horizontal delay on
and off. This allows you to quickly compare two segments of a signal that are separated from each other by a fixed amount of
time.
Using roll mode
Set up roll mode
Use the following procedure to set up roll mode acquisitions.
1. Power on the instrument and set up the horizontal and vertical controls and triggering.
2. Click the Horiz/Acq toolbar button to open the horizontal/acquisition setup control window.
3. Open the Acquisition tab.
4. Click the Roll Mode Auto button to enable roll mode. The resolution, record length, horizontal scale, and number of active
channels on are dependent variables. Therefore, the fastest horizontal scale setting when Roll mode starts is 40 ms/div, the
record length is 1000, the acquisition mode is either Sample or Peak Detect, and 1 or 2 channels must be on. As the record
length or the number of on channels grows, the time per division required to enter Roll mode is slower.
NOTE. Envelope and Average acquisition modes inhibit roll mode. Hi Res roll mode starts when the resolution is 4 ms or
greater.
5. Push the Single button on the instrument front panel to start and acquire enough points to satisfy the acquisition mode
(when the waveform makes it to the left edge of the screen). The acquisition mode must be either Sample or Peak Detect.
6. To stop acquisitions in roll mode:
â–
If you are not in Single Sequence, push Run/Stop to stop roll mode.
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If you are in Single Sequence, roll mode acquisitions stop automatically when a complete record is acquired.
How to ?
DPO70000SX, MSO/DPO70000DX, MSO/DPO70000C, DPO7000C, and MSO/DPO5000B Series 619
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