Editing a Control Definition
Introduction
UniCel DxC Systems Instructions For Use A13914
Quality Control
October 2005
Page 6-11
6
Editing a Control Definition
Introduction
The assigned mean, SD, constituent code, and bar code IDs of a previously defined
control may be edited. The QC File Number associated with any defined control may
not be edited.
Editing Precautions
• Changing the mean and/or standard deviation may affect subsequent QC statistical
data. Changing previously defined mean and/or SD to zero will set the mean to
zero, and the SD to 99999.
• Subsequent data points will be compared to the new mean and SD.
Editing a Control
Follow the steps below to edit a control.
Step
Action
1
Select the QC icon from the menu bar.
2
Select the control option number beside the Control Name and select
Define [F2].
3
Select the chemistry field for modification.
4
Type the modified assigned mean, standard deviation (1 SD), or
constituent code.
5
A Define/Edit Control dialog box prompts the operator to choose how the
changes will be applied to subsequent data. Select the desired option, or
type the item number of the desired action and press the [Tab] key.
Select <Cancel> to exit the Define/Edit Control dialog box without saving
the modified values.
6
If a change was made to the mean, SD, or constituent code, the change is
reflected in the Define/Review view. If changes were not saved, the
previously defined mean/SD are shown.
Note: If the assigned mean and SD were modified and the existing data
points were not deleted, all previous flagging will remain based on original
assigned mean and SD.
7
Exit the Define/Edit Control screen by selecting Done [F10].