Ensuring Great Results with an Infrared Thermometer

by Dynamix Group Writer

Infrared thermometers are temperature sensing devices that enable a user to measure temperatures quickly without touching the object being measured. It does so by making use of electromagnetic radiation. Also termed as pyrometers, infrared thermometers have numerous industrial and environmental uses. Amongst its most useful applications include places where quick spot temperature readings are required or where conventional temperature sensors can’t be easily used. When used incorrectly, the readings can often be misleading or plainly wrong. With these things in mind, avoiding errors and getting accurate results using an infrared thermometer gets easier-

Measuring More Than Required

Each infrared thermometer consists of a “distance-to-spot” ratio indicating the diameter of the area being measured as opposed to the distance from the target. If the thermometer has a distance-to-spot ratio of 12:1 for instance, the area measured would be one-inch in diameter when its 12 inches from the target. If you wish to measure a two-inch area under such a scenario by keeping the thermometer a few feet away, accurate results cannot be expected. The thermometer would also be measuring the outside area as well under such a case. Distance-to-spot ratios vary from as low as 1:1 to as high as 60:1 which is why you must check the label properly before use.

The Matter with Bright Shiny Objects

Infrared thermometers are accurate when measuring most objects. Shiny, reflective surfaces can affect accuracy, however. To set the target right, it’s advisable to put non-reflective tape over the shiny surface for better measurement. Some flat paint can also be applied for the purpose. Since reflective surfaces tend to have a low emissivity as compared to dull surfaces, the readings also vary. Oxidized metals, on the other hand, possess more emissivity than shiny, reflective metals. It is for this reason that an IR thermometer is an ideal choice when taking temperature readings on objects with low emissivity.

Obscured Optics and Temperature Shock

The accuracy of your IR thermometer can also be affected by the place you use it at. In places with dust or steam between the thermometer and the target, the chances of IR energy getting deflected before it reaches the thermometer are quite high. Your IR thermometer’s ability can also be hampered with a lens that has become foggy, is dirty or has scratches on it. In order to ensure accurate readings, enough time must be allowed for the thermometer to adjust to the temperature of its surroundings.

Whether you buy an online thermometer or get it from a physical store, great convenience, speed and accuracy can be confirmed with an IR thermometer when used correctly.

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