Understanding Oscilloscope Functions
Saving a Setup
The oscilloscope saves the current setup if you wait
fi
ve seconds after the last
change before you power off the oscilloscope. The oscilloscope recalls this setup
the next time you apply power.
You can use the Save/Recall Menu to save up to ten different setups.
You can also save setups to a USB
fl
ash drive. The oscilloscope accommodates
a USB
fl
ash drive for removable data storage and retrieval. (See page 59,
Recalling a Setup
The oscilloscope can recall the last setup before the oscilloscope was powered off,
any saved setups, or the default setup. (See page 92,
Default Setup
The oscilloscope is set up for normal operation when it is shipped from the
factory. This is the default setup. To recall this setup, push the
Default Setup
button. To view the default settings, refer to
Appendix D: Default Setup
.
Triggering
The trigger determines when the oscilloscope starts to acquire data and to display
a waveform. When a trigger is set up properly, the oscilloscope converts unstable
displays or blank screens into meaningful waveforms.
Triggered waveform
Untriggered waveforms
For oscilloscope-speci
fi
c descriptions, refer to the
Operating Basics
chapter. (See
.) Refer also to the
Reference
chapter. (See page 96,
When you push the
Run/Stop
or
Single
button to start an acquisition, the
oscilloscope goes through the following steps:
1.
Acquires enough data to
fi
ll the portion of the waveform record to the left of
the trigger point. This is called the pretrigger.
2.
Continues to acquire data while waiting for the trigger condition to occur.
3.
Detects the trigger condition.
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