SPC and Statistics
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If you press the Information button a dialog box is presented where you can enter various check values
for the selected variable.
If you have marked Auto recalculation of limits on the first page, the UCL
X
, LCL
X
, UCL
R/S
and LCL
R/S
,
fields will show current value of the control limits. If you disable automatic recalculation you can manually
enter control limits in these fields.
Cam limit is only applicable if cam can be calculated.
Check one or more of the check boxes in the Trend Deviation Alarms frame to have the SPC and TDA
data monitored for any of the following deviations:
One out: One point outside control levels
Seven up: Seven points consecutively increasing
Seven down: Seven points consecutively decreasing
Seven above: Seven points consecutively above average
Seven below: Seven points consecutively below average
Mid gather: More than 90% of the points in mid third
End gather: Less than 40% of the points in mid third
If a deviation is detected an event of type SPC is generated and stored in the Event Log (see also View
Event Log).
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