Don’t position the infrared thermometer too far away, or at an angle, when taking the temperature of the comparator as it may provide an inaccurate reading. The best way to control the emissivity and temperature of a surface, ensuring that you get the true reading of an infrared thermometer, is by using a solid black body. You can also calibrate thermometers using the following methods. How Do You Calibrate An Infrared Thermometer. If you aim it at the inside of their body, sure. How do you Calibrate an Infrared Thermometer? With both types of calibrators, you set the preferred temperature and then wait for the calibrator to achieve it. If the two temperatures don’t match, either adjust the thermometer’s calibration or send it to the manufacturer for calibration. Thermometers used frequently must be calibrated frequently (weekly or monthly). Product successfully removed from the product comparison! For measurements of many materials, inputting the right emissivity value is as easy as checking the chart. Chart values, however, are just estimates. Product successfully added to the product comparison! with certification traceable to National Standards. Cheaper infrared thermometers use this emissivity setting by default and you cannot adjust it yourself. An infrared thermometer is a thermometer which infers temperature from a portion of the thermal radiation sometimes called black-body radiation emitted by the object being measured. How to perform verification to determine the accuracy of IR thermometer; What is an Infrared (IR) Thermometer. In order to check the accuracy of an IR thermometer out in the field, a Thermometer Comparator and high-accuracy, calibrated ‘master’ thermometer such as a Reference Thermometer are required. This is an especially important consideration when bringing a thermometer in from the outside. For most calibrations, cleaning the infrared thermometer’s lens is not recommended. Each thermometer will be assigned an ID number. Water. Calibrating your thermometer is quick and easy. Hold the infrared thermometer at the recommended measurement distance and make sure that the lens is perpendicular to the surface of the ice water. If neither an industrial black body or a comparator cup are available, however, you can do a quick … Confirm Accuracy Using Another Trusted Pyrometer. But, if you’re making caramel, tempering chocolate, cooking sous vide, grilling a steak, or doing any number of other tasks that require a precise temperature, having a thermometer you can trust is clutch. Thermometers must be maintained to an accuracy of at least plus or minus (±) 1°C. You’re halfway there. Here’s a video of a black body infrared thermometer in use. Short of using a black body, the next best way to calibrate your infrared thermometer is to use a simple, inexpensive Infrared Comparator Cup. You can also calibrate thermometers using the following methods. If the reading of an instrument is found to be inaccurate when validated using a calibrated thermometer it must then be sent to a laboratory to be repaired or re-calibrated. Ice Water Slurry Method It is best to calibrate your infrared thermometer at more than one temperature (at 41°F [5°C] and 140°F [60°C] for example) and the Infrared Comparator Cup makes it easy. So if you find the ℃/℉ button on your thermometer, just press it to change the temperature unit displaying on the screen readout. Hold the infrared thermometer at the recommended measurement distance and make sure that the lens is perpendicular to the surface of the ice water. It will make your outcome more accurate and precise. How do you know that your infrared calibrations are accurate? Place the thermometer comparator on a flat surface. ETI owns full copyright in respect of all content, text and images in or on its catalogues, websites and emails and their reproduction in part or in whole is prohibited without ETI's prior written consent. Infrared black body source We recommend using a Fluke 4180 Precision Infrared Calibrator. Oven thermometer. UKAS accredited certification of IR Thermometers may be obtained from ETI on application and quotation. Add clean tap water until the container is full. The process of validation, where an instrument is comparison checked for accuracy, is what is described here. Usually if an infrared thermometer support temperature unit switch, there will be a button called ℃/℉ on it. Calibrating Your Thermometer. What you need is a calibrator, of which there are two types: a black body calibrator and a flat-plate IR calibrator. In most infrared thermometers, you hold a button for a couple of seconds to access the calibration settings. An easy way to calibrate an infrared thermometer is to make a crushed ice and water mix in a bath. Pan. Depending on what you’re pointing your infrared thermometer at you’re going to get a variation in emitted infrared energy. A dry-block provides a better measurement because it has a known accuracy. Instruments rugged non-contact infrared thermometer. This compact IR thermometer has an easy-to-use backlit display for use in all environments. Temperature gradients on the radiation source 4. Though an infrared thermometer calibration is not an easy task, you can be successful with proper planning and setup. Do not bring the infrared thermometer too close to the target area of the blackbody especially at high temperatures. So how can you test it? *accuracies and thermal stability for other instruments can vary. 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