Infrared thermometers are used to measure an object’s temperature from a safe distance, without having to actually touch the object. These types of thermometers are incredibly useful for electrical applications. Some examples would be: measuring the temperature of motors, circuit panels, & transformers. By using them you can locate hot spots in these systems to help prevent problems.
What are some of the advantages of using an infrared thermometer?
- It is fast (in the millisecond range). An infrared thermometer gives you a nearly instant reading. Conventional thermometers are typically slower at measuring an objects actual temperature. This allows a user to gather more data, faster.
- It captures temperatures of moving parts. Allowing users to accurately monitor equipment and systems while they are in operation.
- Measurements can be taken on potentially hazardous or physically inaccessible objects.
- Allows the measurements of high temperatures (greater than 1300 degree celsius). In such applications contact thermometers cannot be used and have a substantially limited lifespan.
- There is no interference or energy loss. They allow poor heat conductors such as plastic or wood to be measured accurately.
There are many varieties. Some are listed below are some that are available:
- Mini Thermometers – These are pocket-sized units that are perfect for technicians to gather a quick reading. This type of thermometer is typically in-expensive, but limited in its capabilities. Many HVAC(heating,ventilation, and air conditioning) technicians find this type useful.
- Stick Style Thermometers – This type of thermometer would be classified as a mid-range thermometer. Basic models in this mid-level price range have an innumerable amount of applications. Just a few of these are: food preparation, fire safety, HVAC, electrical, and refrigeration.
- Gun Style Thermometers – A gun style infrared thermometer can range from a basic model to an advanced model. The most advanced being a Data Logging High Range 50:1 Infrared Thermometer. This style of gun is probably the most recognizable. It has a pin-point accuracy that sets it apart from some of the basic, lesser quality models of thermometer. This style is often used in industrial capacities.
In the past, infrared thermometers have generally been too expensive for the basic technician to own. But with the recent advancements in technology, the costs have fallen dramatically. Allowing many to add this useful tool to their arsenal. If you are in the market for an infrared thermometer, understand your needs and be aware of what you are buying.
Joseph Macdonald is one of the founders of Electrical Toolshed, a supplier of infrared thermometers and borescopes.
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