YSI 9600 - Manual (Page 109)

CENTER SCROLL
Centers graph at the mouse cursor. The pointer will change to a bullseye. Clicking anywhere on the graph
will cause that point to be moved to the center. This command stays active until you execute it again.
Shortcuts
Toolbar:
LIMIT DATA SET
This command limits the amount of data being processed. If you are not presently interested in
portions of the graph or table at the beginning or end of the study, you may want to use this
command to indicate only that portion that you are interested in. The program will have fewer
data points to handle and will respond to your commands quicker. Executing this command when
modifying a graph will change the pointer to a vertical arrow. Click once on the left end of that
part of the graph that you want and then click again at the right end. This command stays active
until you execute it again.
To limit the data in a table, move the pointer to the far left of the table into the row numbers area
and highlight from the desired cutoff point to the beginning or end of the data set, whichever is
desired. Then select the Limit Data Set option from the graph menu or use the toolbar shortcut.
To undo the limits choose Cancel Limits below. Alternately, you may remove the limits on a
graph by executing this command backwards. That is, click anywhere on the right side of the
graph first, and then click anywhere on the left side. The limits will be moved to the ends of the
file.
Shortcuts
Toolbar:
AUTOSCALE
Sets the scale of each parameter so that the minimum and maximum points fit comfortably on the
graph.
MANUAL SCALE
Takes you to the Graph Y-Axis dialog box where you can set the scale for each parameter.
Graph Y-axis dialog box
To manually scale a graph, double click on its Y-axis labels. A dialog will come up where you
can set the scale. Note that you can manually set the scale for some parameters and autoscale
others. When the autoscale box is checked, the high and low limits will be dimmed. See also the
Autoscale command in the Graph menu.
YSI Environmental 109 Model 9600 Nitrate Monitor