YSI BOD Analyst Pro - Manual (Page 69)

YSI BOD Analyst Pro ® User Manual 69
SECTION 9 GRAPHING
9.1 INTRODUCTION
The graphing function provides you the ability to produce time-series type graphs (data vs. time).
Up to two samples may be displayed on the same plot. The X-axis is time (date) and the Y-axis
may be one or two variables in the database. The Y-axis units are mg/l since the variables are the
Final BODs of Samples selected for time-series analysis.
Use Trending in the main menu but first make sure you have the correct database ready to load.
Check the Data Directory field (upper right) and if it is not correct click File / Open in the main
menu and use the Browse icon to locate and select the file you want to analyze. See the previous
section for specific details on using the Open file function.
Next click Trending / Graph on the main menu to open the blank Graph Utility form as shown
below. The Graph button allows you to search and view data on the screen. The Plot button
allows you to print the Graph you construct. In addition there is a Statistics form (Stats button)
that allows you to further analyze data and an Export Data function that allows you to export the
selected samples as a *.csv file directly into a spreadsheet application program such as MS Excel.
You determine the time axis using the Start Date and Stop Date. These can be conveniently
entered by using the drop down calendar icons. Select Samples from the Sample 1 and Sample 2
fields located top center. Each drop down list contains all of the samples stored in the database