User manual

WaveSurfer 3000/3000z Oscilloscopes Operator's Manual
Acquisition
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 keeps the amount of Offset in the amount of Volts specified, regardless of the V/div setting. As
the Offset is adjusted, the trace will appear to move up or down relative to the zero level.
l Div(isions) keeps the Vertical Offset level indicator stationary. The waveform remains on the grid as
you change V/div, but your Offset value will change.
Delay Setting constant in:
l Time keep the Horizontal Delay at the amount of time specified, regardless of the Time/div setting.
The Horizontal Delay indicator moves 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.
Trigger Counter Setting 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.
Select Disable Hardware Accerlerated View to disable the fast update of the display.
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