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We've been looking at the calibration costs for our multimeters and have come up with the idea of buying new ones every year. There would appear to be some adequate meters out there for <£40 - we're not talking about Fluke and the like stuff here.
Anyone else thinking /doing the same?
Cheers
Mark
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Joined: Feb 2004
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Super Hero
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Super Hero
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Yes, Mark, I always buy mine from the cheaper end of the range available at Maplin's! That way I don't feel the pain quite as badly when they "go missing"! 
Last edited by Geoff Hannis; 03/09/07 1:37 PM. Reason: Added the link.
If you don't inspect ... don't expect.
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Master
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That seems a bit wasteful IMHO. Another option Mark is to have only one multimeter calibrated and to use that as a reference for all your other meters in the event of any queries on readings. This is a cost efective way of ensuring that your multimenters are reading ok. Over the years I have found that there are very few situations that require the accuracy given by a calibrated meter. When that situation does arise then use the calibrated unit! 
There are things that are known and there are things that are unknown. In-between there are doors.
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Joined: Feb 2004
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Super Hero
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Super Hero
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You're spot-on there, John. Personally, I never have the need for anything beyond the little toy I use every day! Recommended.
If you don't inspect ... don't expect.
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Joined: Jun 2001
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Sage
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John, that was the other option that we were thinking about, which I forgot to mention.
Can I get my memory calibrated?
Cheers
Mark
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Joined: Feb 2004
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Super Hero
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Super Hero
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Too much cider, Mate.
If you don't inspect ... don't expect.
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Joined: Jan 2006
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Expert
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Expert
Joined: Jan 2006
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That seems a bit wasteful IMHO. Another option Mark is to have only one multimeter calibrated and to use that as a reference for all your other meters in the event of any queries on readings. This is a cost efective way of ensuring that your multimenters are reading ok. Over the years I have found that there are very few situations that require the accuracy given by a calibrated meter. When that situation does arise then use the calibrated unit! That's exactly what we do here too, we have 2 calibrated Flukes which is used for PPMs and each of us have a Fluke 73 for ordinary purposes ( these are tough and lasts years! )
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Visionary
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Visionary
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Although I agree with you we tryed the minimal number of devices calibration idea but got continually hammered by the QA so now all our Multimeters are Calibrated
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Joined: Feb 2004
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Super Hero
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Super Hero
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QA? Who are these people, Jobsworths? Or do they have a valid argument? Do they pay for all that calibrating (or do I pick up the tab yet again ... the taxpayer, that is). How may times were the multimeters found to be out of cal (did anybody check), I wonder?
Last edited by Geoff Hannis; 17/09/07 10:55 AM. Reason: Minor editing.
If you don't inspect ... don't expect.
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Master
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My department is ISO90001 certified and the auditers who check us out have no problem with this system of Multimeter calibration.  Exactly who are the QA people who audit your department and what qualifies them to make this statement. 
There are things that are known and there are things that are unknown. In-between there are doors.
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