Dear Experts,
I am trying to explore the feature "Classed recording" for an Quantitative MIC. I referred QM expert Craig's earlier post on classed recording topic. But i am having fundamental doubts in this topic.
I have created a Quantitative MIC with the below data
Lower spec. limit - 29 mm
Upper spec. limit - 31 mm
Target spec. limit - 30 mm
No of classes - 2
Class width - 0.5mm
Class midpoint - 30 mm
I have assigned the MIC in inspection plan and i have created the Inspection lot for the lot qty of 30 Ea with inspection type 89. While performing the result recording for the inspection plan the below
Class | Lower Class limit | Upper class limit | Class size | Valuation |
1 | 14.5 | 29.5 | Rejected | |
2 | 29.5 | 30 | Accepted | |
3 | 30 | 30.5 | Accepted | |
4 | 30.5 | 62 | Rejected |
But i was expecting only 3 class will be created as given below.. Is my understanding is correct?
Class | Lower Class limit | Upper class limit | Class size | Valuation |
1 | 29 | 29.5 | ||
2 | 29.5 | 30 | ||
3 | 30 | 30.5 | ||
My queries are given below
1. How the Lower class limit for class 1 is calculated as 14.5 ?
2. How the Upper class limit for class 4 is calculated as 62?
3. How the Valution is showing automatically as "Accepted" and "Rejected"?
4. How to update the results for this scenario in column "Class size" ?
Please provide your inputs for my understanding on this issue