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  Measurement, Test and Calibration
  Gage RR on Digital indicators & Probes?

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Author Topic:   Gage RR on Digital indicators & Probes?
Lurker (<10 Posts)

Posts: 2
From:Windsor, Ont Canada
Registered: Mar 2000

posted 18 October 2000 09:37 AM     Click Here to See the Profile for AGS   Click Here to Email AGS     Edit/Delete Message   Reply w/Quote
We are trying to determine how to calibrate our digital indicators. Do we perform R&R or is zeroing the gage prior to each measurement sufficient for QS-9000?

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Jerry Eldred
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Posts: 136
Registered: Dec 1999

posted 18 October 2000 10:08 AM     Click Here to See the Profile for Jerry Eldred   Click Here to Email Jerry Eldred     Edit/Delete Message   Reply w/Quote
For QS9000 you may well need to do an MSA (R&R). But certainly these do need to be calibrated. You will see out-of-tolerance readings. If they are mounted on surface plates, even a small amount of contamination built up on the surface plate may be enough to cause out-of-tolerance readings.

The A to D converters in the digital indicators do have some amount of drift over time as well. And so there is the need to check and adjust as needed to assure accuracy.

Bottom line: Calibration is needed. R&R would be as necessitated by your product parameters (sounds like probably it is needed).


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Posts: 13
Registered: Aug 2000

posted 25 October 2000 12:57 PM     Click Here to See the Profile for e.s.deo   Click Here to Email e.s.deo     Edit/Delete Message   Reply w/Quote
Calibration will definitely be required.

There is quite a likelyhood that many of such equipments will be included in some national/international standards.

MSA is for the measurement system which has a much wider implication than the mere gauge.

If these equipments are included in your control plan, MSA must be carried out.

Only exception can be availibility of a similar MSA study.



[This message has been edited by e.s.deo (edited 25 October 2000).]

[This message has been edited by e.s.deo (edited 25 October 2000).]

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