YSI BOD Analyst Pro - Manual (Page 85)

YSI BOD Analyst Pro ® User Manual 85
As seen in the figure above the 3 seed sample lines are no longer marked, the BOD values are all
calculated, and the average of the 3 values is reported as the Final BOD (47 mg/l in the example).
This option includes notes UM for seed samples and S for samples used with seed. The UM
identifies that the user “manually unmarked” the seed samples. The S identifies that samples
using seed were calculated with the Seed Correction Factor that was out of range. For example in
the first YSI Test sample the calculation would be (2.370-0.158)/0.01 = 221.20), as displayed.
IMPORTANT!
BOD Analyst Pro® software is a “database-based” program. Therefore by checking and
unchecking the Take 2 Leave 1 rule there is an effect on older stored batches you open and view.
In other words any new criteria apply to all old batches that are stored in the database. So if a rule
was checked “ON” in an old batch, when you run your batch and uncheck it as “OFF”, the view
will exhibit the change. For example, assume you open an older completed batch, the program
opens the older batch with the Take 2 Leave 1 rule as unchecked or “OFF” even if it was
originally “ON” when the batch was run. Redefinition of batches can lead to potential problems.
To avoid any unintended changes to old batches we recommend that you always print your bench
sheets so that a hard copy of each batch is stored for reference.
In addition, we recommend that you use the “print screen” function on your PC of established
criteria since there can often be multiple users in the laboratory. Print screens can be copied to
other documents thus providing printed documentation to review your criteria settings.