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Go Back   The Elsmar Cove Forum > ISO (International Organization for Standardization) Standards > ISO 17025 - Calibration, Measurement Gages and Test Laboratories > Gage R&R (GR&R) and MSA (Measurement Systems Analysis)


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  #1  
Old 21st July 1998, 02:48 PM
Miguel Gonzalez
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Please Help! DMM Multimeter - Perform a complete MSA study?

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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  #2  
Old 21st July 1998, 04:39 PM
Christian Lupo
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Default

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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  #3  
Old 21st July 1998, 05:25 PM
Miguel Gonzalez
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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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  #4  
Old 22nd July 1998, 09:38 AM
Christian Lupo
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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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  #5  
Old 23rd July 1998, 01:12 AM
Miguel Gonzalez
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Christian,

Thanks for your inputs.
Your comments pretty much help me to solve my problem.
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Old 6th December 2006, 02:00 PM
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Default Re: DMM Multimeter - Perform a complete MSA study?

i have a similar problem, to perform bias, linearity and stability studies, how many and which points do you use for every range?
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Old 6th December 2006, 02:41 PM
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Default Re: DMM Multimeter - Perform a complete MSA study?

Quote:
Originally Posted by Miguel Gonzalez View Post

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?
I suggest doing a thorough uncertainty study, then you will know everything that the DMM contributes to a given measurement.....then if you need to do MSA, you have all information on the meter, so you only need other contributions.
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