The Process Analyst allows Operators to edit the
vertical scale of a selected analog pen to display more appropriate
values, if necessary. The vertical scale for digital or alarm pens
cannot be edited.
To edit the vertical scale:
Click Edit
Vertical Scale on the navigation toolbar. The Edit Vertical
Scale dialog box appears.
Click the Limits or Engineering Scale
option. The Limits values displayed are the current values used by
the vertical scale. The Engineering Scale values are obtained from
the trend tag.
Enter a new Minimum value and Maximum value,
and then click OK.