Campbell Scientific RTDAQ Software - Manual (Page 195)

Section 7. Monitoring Data in Real-time
7.6.6.1 Scaling Tab
Use the Scaling tab to control how the X and Y axes are scaled for the display
of data in the graphical area. You may select the Y-Axis tab to configure the
y-axis used by default on the left side of the XY Plot’s graphical area. You
may select the Right Y-Axis tab to configure the y-axis used on the right side
of the XY Plot’s graphical area (if it is used). You may select the X-Axis tab
to configure the x-axis used in the graphical area. Each of the three scales has
independent settings, but all are configured in a similar manner.
Use the Scaling Option box to select whether Automatic or Custom scaling
will be used for the selected axis. When automatic scaling is used, the
maximum and minimum values of the currently displayed set of data points
help to determine what the maximum and minimum limits of the display are.
A display scaling may have its scale adjusted automatically whenever a point is
graphed, if necessary.
When Custom Limits are selected for the scaling, the user provides the
maximum and minimum values to be used for scaling the axis. If a point falls
outside of this specified range, it will not be drawn in the graphical area of the
XY Plot. Use this option when you do not need to see points that extend above
the maximum value or below the minimum value. There will be no re-scaling
as the points are drawn, which sometimes makes the graphical display easier to
view.
Check the Logarithmic box to use a base 10 logarithmic scale for displaying
items on the axis. If the box is unchecked, linear scaling between the maximum
and minimum will be used.
When using logarithmic scaling with custom limits, the
maximum and minimum values should be positive numbers, and
the maximum value should be greater than the minimum value. NOTE
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