Hach BioTector B7000 User Manual page 33

16. Run Span Calibration. This function starts the Span Calibration cycle. The span calibration reactions are
run at a single range programmed by the RANGE in this menu below. At the end of the span calibration
cycle, BioTector automatically calculates the Span Adjust factors and displays it for Span Adjusts above.
Unless it is manually modified, the same Span Adjust factor calculated for the programmed RANGE in
this menu is used for the other two ranges as well. The span reactions operates in the same manner as a
normal reaction, but the Sample Pump reverse operation is disabled to prevent the contamination of the
standard solution connected to calibration/manual port. Span Calibration reactions have the prefix of
"SC".
17. Run Span Check. This function starts the Span Check cycle. The operation is similar to the Span
Calibration cycle above, but BioTector does not update any Span Adjust values at the end of the span
check cycle. Span Check reactions have the prefix "SK".
19. Span Program. Span Program function allows the user to program the number of span reactions to be
carried out during the Span Calibration and Span Check cycles. It is recommended not to modify the
factory set Span Program value unless it is absolutely necessary. Any unnecessary modification in this
setting may have an impact on the span adjust values.
20. Span Average. Span Average function allows the user to program the number of reactions to be
averaged at the end of the Span Calibration and Span Check cycles. It is recommended not to modify the
factory set Span Program value unless it is absolutely necessary. Any unnecessary modification in this
setting may have an impact on the span adjust values.
21. Range. Range function allows the user to program the operation range at which the Span Calibration and
Span Check reactions are carried out. If the selected range is in conflict with the programmed
CALIBRATION STANDARD concentration in this menu, system automatically displays a "Caution!
Reaction Range or Standard is Incorrect" warning. See System Range Data menu in order to select the
correct operation range or correct standard solution.
22.-24. TIC/TOC/TN Standard. TIC/TOC/TN Standard function allows the user to program the
concentrations of the TIC / TOC (mgC/l) and TN (mgN/l) standard solution used in Span Calibration
reactions. If the programmed concentration level is in conflict with the programmed RANGE above,
system automatically displays a "Caution! Reaction Range or Standard is Incorrect" warning. See System
Range Data menu in order to select the correct operation range or correct standard solution. If one or
more of the Standard concentrations are programmed as 0.0mg/l, system does not calculate or update
any Span Adjust factors and therefore omits any span related warnings defined above. See Section 6
Calibration Standards for the details of BioTector standard solutions and preparation procedures. In VOC
and TC – TIC systems, it is recommended to run the TIC and TOC calibrations separately using separate
standard solutions.
27.  Span Program. Span Program is a link to Maintenance, System Configuration, Sequence Program,
Span Program menu.
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