YSI BOD Analyst Pro - Manual (Page 34)

YSI BOD Analyst Pro ® User Manual 34
SECTION 5 BATCHES
5.1 WHAT IS A "BATCH?"
A group of samples set up and read on a specific date is referred to as a Batch. The Batch is
identified by all of the samples for which the Initial DOs were read on that date. In the BOD
Analyst Pro software the Sample Date is used to locate a specific batch. If only the Initial DOs
have been read the batch is sometimes referred to as an Open Batch. If Initial and Final DOs
have been read the Final DOs will be automatically calculated and displayed when the batch is
displayed in the Bench Sheet.
You should verify that your computer date is correctly set since the day you read the Initial DOs
and the date you run the Final DOs set the Incubation Period for the Batch. If the date is
incorrect the BOD Analyst Pro software may not calculate BODs correctly.
There are several safeguards built into the program to help you avoid making a mistake. The date
and the day of the week are displayed as Current Date on the main screen at all times.
A Batch must be self-contained. That is, if there are any seeded Samples in the Batch then the
corresponding seed control samples must also be present. When a Batch is built a warning
message will be displayed and the batch will not be built if any mandatory samples or conditions
are not met. Once the Batch is built you may delete the seed control sample from the bench sheet,
although this is not common.
Above would be the appearance of a Bench Sheet before a Batch would be built on the date
07/12/2010. At the top left is the Data Directory field showing location of the database file. The
Sample Date defaults to the Current Date until you search for other Batches in the file.