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  Measurement, Test and Calibration
  Is R & R study required for process monitoring instruments ?

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Author Topic:   Is R & R study required for process monitoring instruments ?
Ravi
Lurker (<10 Posts)

Posts: 1
From:Bangalore, karnataka, India
Registered: Jun 2001

posted 22 June 2001 05:56 AM     Click Here to See the Profile for Ravi   Click Here to Email Ravi     Edit/Delete Message   Reply w/Quote
Sir,
Is R & R study required for process monitoring instruments or is it only for the product monitoring/measuring instruments only.

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Sincerly,
Ravi kumar.

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Jerry Eldred
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Posts: 136
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Registered: Dec 1999

posted 22 June 2001 08:58 AM     Click Here to See the Profile for Jerry Eldred   Click Here to Email Jerry Eldred     Edit/Delete Message   Reply w/Quote
I'll try to give you my layman's answer. I am not an MSA / R & R expert, rather I am a metrology engineer with 25 years experience (so take my attempt from that perspective).

R& R is needed for any measuring instrument whose readings/accuracy/stability you depend upon for product specs. I don't know what aspect of the production you are monitoring, but my guess is (based on your wording) that it may be needed. If you are monitoring a quantitative specified parameter or using readings from this monitor to determine whether you are in or out of control on your process, I would think, yes.

If you could elaborate a little more, that may be helpful. I understand if you don't want to put actual process details on the web (you could put fictitious representations of the process).

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Marc Smith
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From:West Chester, OH, USA
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posted 22 June 2001 09:21 AM     Click Here to See the Profile for Marc Smith   Click Here to Email Marc Smith     Edit/Delete Message   Reply w/Quote
Jerry is, as always, correct. However the key word in your question:

-> Is R & R study required for process monitoring
-> instruments or is it only for the product
-> monitoring/measuring instruments only

Is the word required. Do you mean required by QS-9000 or ISO 9001:2000?

In the world of Best Practices you would do an R&R on both inspection/test and process instruments, as Jerry points out. But, as Jerry also says, we need more info to go beyond these general statements.

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