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Infrared Thermometer calibration

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scott schmidt

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Posted 27 January 2017 - 05:29 PM

Our facility uses the ice slurry method to calibrate our infrared thermometers. We use a NIST traceable red dye thermometer to verify that the slurry is 32 degrees. My problem here is that the K-State thermometer calibration guide does not support this method. Does anybody know where I can get supporting HACCP documentation to continue using this method. The alternative would be to purchase a black body machine but they are very expensive. I chose the infrared thermometers to take external temperatures as our facility processing all raw products. Can anybody help?



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Posted 28 January 2017 - 04:07 PM

Hi Scott,


This may seem what a simple minded solution - but it worked recently for one of our clients.


Contact the food safety division (if they have one) of the manufacturer of your infrared thermometers and put this question to them - they should be able to provide what you need.

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Glenn Oster
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Posted 01 February 2017 - 11:44 PM

Hi Scott,


What you may require is a “Comparator Cup”.  


The supplier of your infrared thermometer should be able to sell you one of these. 

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Posted 02 February 2017 - 06:43 PM

The company Thermoworks provides instructions on how to verify that your infrared thermometer is reading properly.  http://www.thermowor...ibrate_infrared  They also sell the Comparator Cup and Portable Infrared Calibrator, blackbody target.  We just use the cup method and it seems to have worked for us, but we are just testing for cold temps, not hot.


However, I agree with SQF Consultant that it could not hurt to contact the manufacturer and see what information they can provide for you.

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