YSI BOD Analyst Pro - Manual (Page 21)

YSI BOD Analyst Pro ® User Manual 21
7. Read Finals. Five days later restart BOD Analyst Pro software. Friday 07/01/2010 would
appear as Current Date rather than the simulated 6/28 in this example. Select the Sample
Date to load the batch. The Sample Date is the date that the Initials were read, not the current
date. Incubation would read 6/28/2010 to 7/1/2010 in an actual 5-day run.
Select Read from the top line menu and then Finals from the Main Menu. Follow the
prompts on the YSI or the PC to read the Day-5 readings. The results automatically load into
the program when confirmed. The prompts move down the table from bottle 1 to 13 in order.
Once complete the program displays a message indicating completion. Retakes of Finals
(and Initials) are allowed under certain conditions. Read Section 6 and Section 7 for more
detail related to taking DO readings. Calculations of BOD are displayed based on criteria set
up when the batch was created. Results that do not meet criteria may be marked (green).
Once the Finals are read and the Manual Check icon is clicked to apply test criteria the
calculations are made and BODs for each sample except the Dilution Blank are displayed. Note
the green marked rows where the criterion was to check all three dilutions and use the Seed BOD
closest to the 50% depletion rule. Bottle #6 was the closest and shown as 130 in the Final BOD
column. It is good practice to print the Bench Sheet at this time to create a hard copy of the
results. File / Exit closes the program and may prompt you to save results if you have not already
done so.