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  Calibration and MSA forum

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Author Topic:   Calibration and MSA forum
Miguel Gonzalez
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posted 21 July 1998 01:48 PM     Click Here to See the Profile for Miguel Gonzalez   Click Here to Email Miguel Gonzalez     Edit/Delete Message   Reply w/Quote
I have this question.
Looking at the MSA manual, I noticed that all examples are referred to mechanical instruments (calipers, micrometers, plug gages, pin gages, etc.) and I was trying t find an example of an electronic device like an oscilloscope or mutimeter, etc.
My question is;
If I have a multimeter in my control plan, do I have to perform a complete MSA study?

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Christian Lupo
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posted 21 July 1998 03:39 PM     Click Here to See the Profile for Christian Lupo   Click Here to Email Christian Lupo     Edit/Delete Message   Reply w/Quote
Miguel-

"Complete" in the context of an MSA study is a relative term, or depends on the equipment. You can do a "complete" MSA study on a voltmeter (or any of the other equipment you mentioned) if all you are checking is Bias, linearity, and stability.

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Miguel Gonzalez
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posted 21 July 1998 04:25 PM     Click Here to See the Profile for Miguel Gonzalez   Click Here to Email Miguel Gonzalez     Edit/Delete Message   Reply w/Quote
Thanks for the fast response.
Actually, my question was more related to know if electronic devices (eg. multimeters)are to be considered into the msa element.
If yes, In case of a multimeter which it is used to measure DC Voltage, Do I have to perform bias, linearity and stability studies for that range only?

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Christian Lupo
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posted 22 July 1998 08:38 AM     Click Here to See the Profile for Christian Lupo   Click Here to Email Christian Lupo     Edit/Delete Message   Reply w/Quote
If the multimeter is listed in the control plan you must perform an MSA in the range the instrument is used.

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Miguel Gonzalez
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posted 22 July 1998 12:12 PM     Click Here to See the Profile for Miguel Gonzalez   Click Here to Email Miguel Gonzalez     Edit/Delete Message   Reply w/Quote
Christian,

Thanks for your inputs.
Your comments pretty much help me to solve my problem.

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