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Measurements after Calibration Expiry - Page 2

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calibration past due date measurement equipment and gages, measurement (general)
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  Post Number #9  
Old 13th September 2018, 06:29 PM
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Re: Measurements after Calibration Expiry

Quote:
In Reply to Parent Post by AndyN View Post

In which case, you aren't managing the measurement resource effectively!
Well...I agree with you about 93.68%...

Sometimes stuff just breaks without showing off. This is earth after all.

I have a CMM, it's been a workhorse for 8 years, never even thought of failing validations or calibrations...I moved it from 3mnths to 6mnths...3 years later I moved it to a year...then I randomly checked it 2mnths after a cal with no issue...checked it just 'cause I was training someone else how to do the verify and cal...

The stupid thing was WAY out, and we had to recheck 2mnths worth of work.

As Mr. Gump said, "It happens". A rarity...but it happens...

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  Post Number #10  
Old 13th September 2018, 07:59 PM
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Lightbulb Re: Measurements after Calibration Expiry

Quote:
In Reply to Parent Post by Ninja View Post

A rarity...but it happens...
Which, in and of itself, no justification for treating EVERYTHING the same way.
  Post Number #11  
Old 14th September 2018, 10:30 AM
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Re: Measurements after Calibration Expiry

Hmmm, in line with the OP (what to do when calibration wasn't done)
...justifiably extended to what happens after you get on it and find an issue by Scott
...extended further by me to include anytime you find it "out"...

Yeah, I would treat that SITUATION the same way pretty much every time.

All equipment treated the same, no.
But the situation of "Something should have gone right and didn't" is pretty rote when it comes to calibration and verification.
  Post Number #12  
Old 14th September 2018, 11:10 AM
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Re: Measurements after Calibration Expiry

Whether the gauge does/ does not exceed calibration tolerance/limits is one issue. Really the same activities should occur whether the instrument went past its calibration cycle or not. There still needs to be a review of potential impact to the product/ process.

There is another fundamental issue of the instrument going past its cycle. Was someone not paying attention? Is there not enough planning and such around the due date? Should some grace period be built in? Should spare/ backup instruments be purchased?

Fundamental to the quality system should be everyone working together. People handling calibration should not have to fight with people to have their instruments calibrated on time.
Thanks to BradM for your informative Post and/or Attachment!
  Post Number #13  
Old 14th September 2018, 03:02 PM
dwperron

 
 
Total Posts: 228
Re: Measurements after Calibration Expiry

Exactly!

Using an overdue tool is the same as using an uncalibrated tool - a non-conformance.
If they are working to a quality system this should be cause for a corrective action.

Most companies have a policy for a calibration cycle extension. Stuff happens. If these folks had that policy the problem goes away.

Another question this raises is why was he looking for answers as to what to do. It should be covered in their quality system, they should have the answers already documented.
Thanks to dwperron for your informative Post and/or Attachment!
  Post Number #14  
Old 14th September 2018, 04:38 PM
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Re: Measurements after Calibration Expiry

You are both correct...overdue = uncalibrated = unacceptable.
I simply posit that inaccurate (broken, drifted, junk, whatever) gets handled the same way...

It happens frequently (mores the pity), but it is never OK.

IME, calibration is one of those things in the category of "NVA but required"...and I figure that's why it falls down so often.
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