Good morning ladies and gentlemen. I have a query that is not PCDMIS specific but affects all of us that report to ISO Audit teams on a yearly basis. We had our 3 CMMs calibrated over a month ago and the following results were generated by the Hexagon techs. As required, the individual machines go thru a perassessment inspection to the factory specs prior to adjustment. Our Sheffield was found to be about .0006" out of factory spec tolerance for the Y-axis linear displacement test (over 2000 mm). And of course adjustments were made and the machine retested. The questions are these. First, do I need to cover my *ss to an ISO auditor over the possibility of us inspecting product with this CMM that could be deemed nonconforming because of the error prior to the calibration? Am I covered by any outside documentation to the fact that this is a common fact found in our world as one may ask, how do I know this machine is measuring to spec 3 days after the calibration? I believe GE Aviation once directed some literature on measurement uncertainty towards this. Second, do I need even present the preassessment data to an ISO auditor or just submit validation that the CMM was calibrated on such and such a date and say here's the cert saying it passed factory spec assessment? Please get back to me asap as we're getting close to that date.
