Acquisition Modes
3–10
TDS 420A, TDS 430A, TDS 460A & TDS 510A User Manual
Single Acquisition Sequence
(side) lets you run a single sequence of acquisitions
by pressing the RUN/STOP button.
In Envelope or Average mode, the digitizing oscilloscope makes the specified
number of acquisitions to complete the averaging or enveloping task.
If the oscilloscope is in equivalent-time mode and you press Single Acquisition
Sequence
(side), it continues to recognize trigger events and acquire samples
until the waveform record is filled.
NOTE. To quickly select Single Acquisition Sequence without displaying the
Acquire and Stop After menus, press SHIFT FORCE TRIG. (You still must
display the Acquire menu and then the Stop After menu to leave Single Acquisi-
tion Sequence operation.)
Limit Test Condition Met
(side) lets you acquire waveforms until waveform data
exceeds the limits specified in the limit test. Then acquisition stops. At that
point, you can also specify other actions for the oscilloscope to take using the
selections available in the Limit Test Setup main menu.
NOTE. In order for the digitizing oscilloscope to stop acquisition when limit test
conditions are met, limit testing must be turned ON, using the Limit Test Setup
main menu.
Setting up limit testing requires several more steps. See Limit Testing, on
page 3–63.
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