SAP QM Calibration Equipment Register Worksheet
ISO 9001, AS9100 and IATF 16949 all expect monitoring and measuring equipment to be calibrated and traceable. In SAP, test equipment is managed through equipment or production resources and tools linked to calibration inspections. This worksheet is the register you can compare against.
| Equipment ID | Description | Interval (days) | Last calibrated | Permitted error (+/-) | As-found error | As-left error | As-found in tolerance (1 = yes) | As-found % of tolerance | Next due | |
|---|---|---|---|---|---|---|---|---|---|---|
1 | 25% | |||||||||
1 | 66.7% | |||||||||
0 | 130% | |||||||||
1 | 45% |
Enter errors in the instrument's own unit. An instrument found out of tolerance needs an impact review of products measured since its last good calibration. Next due dates are typed in; check them against the interval and the last calibration date.
Reconcile calibration with SAP
Optional discussion on comparing calibration registers to SAP equipment and inspection data.
Optional. The tool and every export work without this. No spam.
How to use it
Add each instrument with its interval, last calibration date and permitted error. After each calibration, enter the as-found error (what the instrument read before adjustment) and the as-left error (after adjustment). The sheet flags instruments found out of tolerance and shows how much of the tolerance the as-found error used. Export to Excel for audits or to reconcile with SAP.
- Record as-found before any adjustment
- Use the same unit as the permitted error
- Set the next due date from the interval
- Open an impact review for every failure
How calibration is handled in SAP QM
Test equipment can be maintained as equipment master records or production resources and tools, and calibration is planned through inspection lots created for the equipment. The lot has characteristics for the calibration points and a usage decision that sets the status of the equipment. Scheduling uses maintenance plans or the equipment's inspection interval. Plan the design with your plant maintenance team since PM and QM share this data.
Reading the result
As-found in tolerance equals 1 when the absolute as-found error is no greater than the permitted error. Percent of tolerance shows the margin: an instrument at 90 percent still passes but is close to drifting, which may justify a shorter interval. A failure at 130 percent has used more than the whole tolerance, so measurements made with it need review.
Common mistakes
Recording only the as-left result so drift is never seen. Extending intervals with no history to support it. Treating equipment status as blocked in SAP while the shop floor still uses it. Not recording the calibration standard used and its own traceability.
Frequently Asked Questions
What is as-found versus as-left?
As-found is the error before any adjustment, which shows how the instrument performed in service. As-left is the error after adjustment. Standards expect you to keep as-found data to judge the validity of earlier measurements.
How do I set a calibration interval?
Start from the manufacturer recommendation and the usage, then adjust using history. Instruments that always pass with little drift can be extended with justification, while those near the limit need a shorter interval.
Does this replace SAP?
No. It is a register for planning, audits and reconciliation. Equipment status and calibration lots belong in the system where they link to usage and blocks.
What if an instrument fails?
Remove it from use, review measurements made since the last good calibration, assess product impact and record the action. Open a quality notification if product could have been shipped with wrong measurements.
If you want calibration due dates and failures compared with SAP equipment data, Netray can help build that reconciliation.
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