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HOW TO USE THE INSTRUMENT 4 - 29
TRIGGER SINGLE SHOT
- Make sure the instrument is in the Digital Mode.
-Press AUTOSET.
This sets up the scope with the proper amplitude and timebase settings.
- Remove the probe tip from the Probe Adjust output.
- Turn the TRIGGER POSITION to mid-screen (counterclockwise).
- Press the SINGLE key.
This
automatically
prepares the scope for a single acquisition.
Observe that the screen has been cleared, and that the ARM’D LED is on. This
indicates that the scope is armed and waits for a trigger. The trigger level is
automatically set to .5 divisions (indicated by ’T-’).
- Look at the screen and touch the Probe Adjust output with the probe tip.
Observe that the oscilloscope ’runs’ once and that a signal appears on the screen.
The ARM’D LED is turned off. At the moment you touched the Probe Adjust output
with the probe, the scope was triggered. The trigger moment is displayed in the
center of the screen. The left side of the screen displays the part of the signal
before triggering (pretrigger information).
In SINGLE SHOT also ’Dual Slope’ triggering is possible. See chapter 5
TRIGGER MAIN TB function.
ST6505
9303
T−
T−
Probe Adjust