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Former Member
May 31, 2010 at 02:42 PM

control chart tolerance limits lines not shown

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As Run chart displays values of Single result, SPC Control charts also Displays these reults with tolerance limit with Showing lines of uper and lower limit Tolerence. I have an issue while showing these lines .when i am doing result recording control charts Some times shows tolerance limit lines and some times not ? Kindly clarify me the SPC control chart process too?but my main question is that why SAP some times shows Results and sometimes not .

More over I already did all settings as below

Sapmling procedure with Fixed samples ,and SPC inspection crieteria,

Inspection plan -Inspection task list cahracterstics

MIC

Sampling proceudre -active

SPC - Active

Required Chrac.-Active

Single result -Active

Fixed scope -Active

All settings of number ranges is set

Control chart 115 -Shewchart X bar is using .