Altana Auto-Chart Bedienungsanleitung PDF herunterladen (Seite 26)

6.4 xR-Chart: The voice of the process

... records the mean and range values for several checkzones per individual car (1) and

automatically calculates the process limits. One filter per report needs to be created. At

least two checkzones need to be selected to calculate a range, usual amount of

checkzones are 4 to 10 (2).

Example:

Typically the xR-chart checks how critical colors or high runners are performing over time.

Three reports (horizontal, vertical left and right) were defined for the color "Black":

Finished QC-Report in Excel:

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Altana Auto-Chart Bedienungsanleitung Seite 26