YSI BOD Analyst Pro - Manual (Page 77)

YSI BOD Analyst Pro ® User Manual 77
SECTION 10 CUSTOMIZING YOUR PROGRAM
The BOD Analyst Pro software has significant flexibility to cover the wide variety of ways that
people measure and analyze BODs. Some features are simple and a matter of personal preference.
Other features may be important in regulatory reporting. This section describes the advanced
settings that you can use and specify in YSI BOD Analyst Pro software. You make your choices
on several forms under the Setup menu.
10.1 THE BARCODE SCANNER
The YSI barcode scanner can only be used with the YSI 5100 DO instrument; however some
“third party” barcode scanners can be directly connected to your PC and used in tandem with
BOD Analyst Pro and a YSI DO instrument. With third party scanners you must click on the
Sample Name cell in the table for “typing-free” bottle number entry.
The primary purpose of the barcode scanner is to eliminate human error. Depending on exactly
how you measure BODs, it may save you time. At the YSI Instrument Parameters form you set
the barcode scanner to be ON or OFF. For the YSI barcode scanner this box must be set to ON. In
addition the box just above for Bottles must be set ON to provide the appropriate prompts
necessary for bottle number entry. The following table describes options for each setting.
Setting Description for YSI BOD Analyst Pro used with YSI 5100
ON
Bottle numbers can be scanned in, entered from the YSI 5100
instrument, or entered from the computer keyboard.
OFF
Bottle numbers CANNOT be scanned in. Entry must be done
from the YSI 5100 instrument or the computer keyboard.
10.2 AUTO STABILIZATION
The BOD program can automatically monitor the DO reading for stability. You set the criteria for
stability based upon your needs. You also set the program related to when and how to store the
reading once it is stable. The advantage to Auto Stabilization is that you no longer have to make a
decision about stability for every single reading. The program makes the decision for you based
upon your criteria. It provides consistency and frees you up to do other things. This feature may
also save you time because readings are stored as soon as they are stable.
There are two basic stability criteria, hold time and change. For example, assume that the settings
are Hold Time is 10 seconds and Change is 0.05 mg/L. What this means is that if in the most
recent 10 second interval the minimum reading and the maximum reading do not differ by more
than 0.05mg/L then the reading is considered to be stable.
Note that the hold time will be the minimum time that it takes to get a reading. The program also
allows you to define one set of criteria for blanks and another set for all other samples.