| Variance Warning Limits
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From this dropdown list, you can select the Variance warning limits type:
- None. (If selected, the analysis will not generate any warning limits on the Variance chart.)
- Use defined UWL and LWL
- If Use defined UWL and LWL option is selected, the analysis will look for variables named *_RUWL and *_RLWL for each characteristic (where '*' is the name of the characteristic) and use the values in the respective variables as the Upper warning limit and Lower warning limit values.
- Each time the value in the *_RUWL or *_RLWL variable changes moving downward in the column, the system will create a new set on the Variance chart.
- If a value in the *_RUWL or *_RLWL variable is blank, the system will use the previous valid value found in the respective column.
- If no valid values are found in the
*_RUWL variable, the
Calculated UWL will be used as the
Variance chart UWL value if the
Calculate if defined variance limits are blank checkbox is selected. If this option is not selected, the chart will not have a UWL.
- If no valid values are found in the
*_RLWL variable, the
Calculated LWL will be used as the
Variance chart LWL value if the
Calculate if defined variance limits are blank checkbox is selected. If this option is not selected, the chart will not have a LWL.
- Calculate UWL and LWL
- Calculate UWL . If this option is selected, the
UWL value will be computed for the
Variance chart and there will be no
LWL.
- Calculate LWL. If this option is selected, the
LWL value will be computed for the
Variance chart and there will be no
UWL.
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| Check Variance Warning Limits
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Select this checkbox to raise and alarm if a warning limit violation is found.
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| Calculate if defined variance limits are blank
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Select this checkbox to calculate the
Variance chart warning limit, if you have selected to
Use defined UWL and LWL option in the
Variance Warning Limits dropdown list, and the variable with the defined
UWL or
LWL has a blank or invalid values.
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| Process Sigma Multiplier
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Use this miniscroll to select a user defined process sigma multiplier for calculating the warning limits on the
Variance chart.
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| Variance Warning Limit label type
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In this dropdown list, choose the
Warning limit label type on the
Variance chart:
- Text only
- Text and number
- Number only
- None
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| Upper Variance Warning limit label name
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In this textbox, enter the label for the
Upper variance Warning limit when the
Text only or the
Text and number option is selected.
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| Lower Variance Warning limit label name
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In this textbox, enter the label for the
Lower variance Warning limit when the
Text only or the
Text and number option is selected.
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| Variance Warning Limit violation name
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In this text box, enter the
Variance Warning Limit Violation name to be used in the generated alarms spreadsheet and on the
Variance chart legend.
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