Tektronix CSA7404B, Руководство пользователя

Страница: 101 / 438

Acquiring Waveforms
CSA7000B Series & TDS7000B Series Instruments User Manual
3- 33
Use the procedure that follows to set up roll mode acquisitions.
Overview To set Roll Mode Control elements and resources
Prerequisites 1. The horizontal and vertical controls must be set up.
Triggering should also be set up.
See page 3--29 for acquisition setup and
page 3--63 for trigger setup.
To enable roll
mode
2. Touch the Horiz button. Select the Acquisition tab from
the Horiz/Acq control window, or select Horizontal/Ac-
quisition Setup from the Horiz/Acq menu to display the
Acquisition Mode control window. Select the Acquisition
tab.
3. Select Roll Mode AUTO to enable roll mode.
When the horizontal scale is 100 ms per division at a
record length of 500 points and the acquisition mode is
Sample or Pk Detect, roll mode turns on. As the record
length becomes larger, the time per division required to
enter roll mode becomes slower.
Note. Envelope, Average, FastAcq, and Waveform
Database acquisition modes inhibit roll mode.
To single
sequence roll
mode
4. Push the SINGLE button to start acquiring and acquire
enough waveforms to satisfy the acquisition mode and
then stop.
To turn off roll
mode
acquisitions
5. Do the following step to stop acquisitions in roll mode:
H
If you are not in Single Sequence, push RUN/
STOP to stop roll mode.
H
If you are in Single Sequence, roll mode acquisi-
tions stop automatically when a complete record is
acquired.
To Set Roll Mode