Inspec Insights

What Wikipedia Can’t Tell You About Calibration Frequency

by Tom Snyder, Vice President Service

Have you ever looked at a piece of equipment and thought, “we don’t use this very often so let’s extend its calibration frequency”?

It’s not a bad idea, it can save some money, and eliminate downtime due to equipment out of the building for calibration and it’s a good use of your company’s Quality System.  However, there are a few things to be aware of when you’re adjusting your calibration frequencies.

Start by looking at the last several certificates for the piece of equipment, you’re looking for trends.  Was it found in tolerance during the two previous calibrations?  If so you may want to consider increasing the frequency; a rule of thumb is to go 1.5 times the frequency.  So with two consecutive calibration certificates showing in tolerance as found and as left you could increase the frequency from 12 months to 18.

Performing an interim check will allow you to extend the frequency as well. The more data you have that shows the equipment is performing within its range the better you will be when you are audited.  Speaking of audits; you’ll want to be aware that an auditor may target the items that were extended, but, if you have the documentation to support the extension there shouldn’t be any issues.   This would include the calibration reports and/or interim check data.

On the opposite side, most customers don’t think about what to do if the equipment failed calibration on one of the previous calibration visits.  At that point you should look to decrease the calibration interval.

So in the end, it comes down to managing your calibration frequencies based on data and not on usage.  If you have questions about calibration frequencies give us a call any time and we’ll be happy to talk you through the options.

1 comment

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  • sharpener | Apr 19, 2016
    I would like to thank wikipedia calibration frequency. The services I am using to get more knowledge on every best essay article from this website. I am interested to learn the calibration and frequency from this website.

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