Utilities
Acquisition Preferences
The Acquisition preference settings determine how traces behave as Vertical Offset or Horizontal
Delay changes. To access them, choose
Utilities > Preference Setup
and open the
Acquisition
dialog.
Offset Setting constant in:
l
Volts
moves the Vertical Offset level indicator with the actual voltage level.
l
Div
(isions) keeps the Vertical Offset level indicator stationary. The waveform remains on the
grid as you increase the gain; whereas, if Volts is selected, the waveform could move off the
grid.
Delay Setting constant in:
l
Time
moves the Horizontal Delay indicator relative to the 0 point at the center of the grid.
l
Div
(isions) keeps the Horizontal Delay indicator stationary. The trigger point remains on the
grid as you increase the timebase; whereas, if Time is selected, the trigger point could move
off the grid.
Note:
The Offset value is always in the vertical unit, and the Delay is always in time. However,
whenever Div is selected, these values are scaled proportional to the change in gain or
timebase, thereby keeping the division of the grid constant.
Reset trigger counter before starting a new acquisition
is selected by default. It clears the trigger
counter each time a new acquisition command is sent. It is only made active for deselection when
trigger Holdoff is set.
Calibration
Calibration ensures that the output from the analog-to-digital converters (ADCs) accurately represents
the input. The instrument is calibrated at the factory prior to shipment. So that it maintains specified
performance, it is factory set to perform an automatic calibration routine upon start-up and whenever
conditions warrant it, based on your automatic calibration selection.
Warm up the oscilloscope for at least 10 minutes prior to use to give the instrument time to complete
the automatic calibration procedure. You will see a warning message on the Calibration dialog when
the oscilloscope is still in the warm-up phase.
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