YSI BOD Analyst Pro - Manual (Page 71)

YSI BOD Analyst Pro ® User Manual 71
There are icons that function to size and position the plot to fit your needs. The use of these icons
is very intuitive however some discussion of their use may help you get started.
First click on the “magnifying glass” icon to open up a group of 6 more icons. These are listed in
the table below. Try using each on a practice graph. In this example plot the Y-values are >165
and <230 so the Define plot area tool worked well to “box in” in the data to better fill the screen.
In order to box in the data the Zoom out tool was used to get everything in view. Finally the icon
of a “hand” just below the magnifier can be activated and used to position the entire plot within
the view defined by the monitor screen.
Define plot area with box Define a specific time interval Define a specific BOD range
Return to original plot Zoom in tool (make plot larger) Zoom out too (make plot smaller)
The setup, sizing, and positioning of the graph is important since when you print the graph the
adjustments described help optimize the appearance of the printed graph on paper.
Next a second Sample will be added to the plot and the average value will also be displayed. The
second parameter is C-Raw T which is an abbreviated expression of Carbonaceous BOD of Raw
Sewage Thursday setup. The graph is shown below.
NOTE: To express the mean value line open Stats using the icon and click Plot Mean, then OK.