posted 22 June 2001 04:58 AM              

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7.6d) requires that equipment shall be safeguarded from adjustments that would invalidate the measurement result.
Many of our scales, calipers etc have adjustment controls so that they can be adjusted if necessary. In the past our people have been told not to touch any of these controls (although they may need to tare the scales, or rezero the calipers). This has always worked ok.
Are we expected to seal the adjustment points to prevent tampering? Some of instruments would be hard or impossible to seal in this way. Any thoughts would be appreciated.

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Posts: 275
From:ILLINOIS
Registered: Mar 2000

posted 22 June 2001 11:28 AM               

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Just a thought - (and may be way off base here) I would view "Re-setting to O" a normal use practice for scales & digital calipers.

Why would this action not be "justified" ---- by 0 set -- we are not "Invalidating the "adjustment of the insturment" But verifying the normal state of the device.

Any one else have an opinion?

Regards
Jim

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From:Orillia, Ontario, Canada
Registered: Apr 2001

posted 22 June 2001 11:45 AM               

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I totally agree with Jim on this one. Our plant workers, toolroom and qa use micrometers on an hourly basis. I'm quite sure they get zeroed all the time. I don't see how that's an issue at all. I think what they are talking about here, as with everything else, they are expecting you to take 'reasonable precautions'. What is reasonable? That will obviously be up to your discretion. You will have to determine where there is calibrated equipment that could be tampered with easily that may affect quality.

[This message has been edited by Fire Girl (edited 22 June 2001).]

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From:nc
Registered: Apr 2001

posted 22 June 2001 03:28 PM               

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I have used the following;

...operators are allowed to make adjustments to the following families of measuring equipment ...then list!

Exceptions are to the following which are locked, sealed and controlled by _____

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From:New Britain, CT
Registered: Nov 2000

posted 22 June 2001 03:47 PM               

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And don't forget that those of you who are fortunate enough to have a Final Inspection Department, that these "inspection" instruments can be placed in a secure cabinet as a means of safeguarding. You have the additional comfort of knowing that you are checking other manufacturing instruments which may not be so secure. Also, in-process, 1st piece inspections are also used to explain the how you safeguard measuring instruments against tampering. Your QC personnel are above tampering. Right? Right.
energy

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