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An example of results obtained with an automated pipettor (Pipettor#1) set to deliver 200 L is shown in Figure 13. In this particular example, two of the eight pipettor channels were slightly outside the acceptable range.
NOTE: If you wish, you can also flag pipettor channels which give a standard deviation above a certain limit. For example, the formula to indicate pass/fail with respect to a standard deviation limit of 2.0 could be: If(Std.Dev<2.0,Pass,Fail).
CREATING A CUSTOMIZED SUMMARY SECTION
You can create a customized report in a Notes section to report final results. An example of such a report is shown in
Figure 14. The Nominal Dispense Volume was brought into the Notes section by creating a summary linked to Sum#1 in thePipettor#1 Group Table. The formula for the linked summary is Sum#1@Pipettor#1.
To obtain a Pass/Fail outcome for the pipettor, a column was created in the Pipettor#1 Group Table in which the results from the Outcome column were converted to numerical values (
Figure 15.) The column is named
HiddenColumn, because it is normally hidden from view to simplify the Group Table. The formula for the hidden column is If(Outcome=,1,10).
The OVERALL PIPETTOR OUTCOME in the Notes section was created by adding another summary, linked to the Pipettor#1 Group Table with the formula: if (Max(HiddenColumn@Pipettor#1)>1,Fail,Pass). The formula refers to the numerical values in the hidden column if any one of the numerical values exceeds 1, the pipettor fails the performance check.
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