Temperature Measurement Scales

In air conditioning and heating applications it is necessary to accurately measure temperature to offer control of the temperatures relative to the application for which the HVACR equipment is serving. There are four separate temperature scales used to measure temperature and it becomes necessary at times to have the ability to convert between the different scales. The two most common scales used by most people are Fahrenheit and Celsius. Fahrenheit is mostly used in the United States where the culture has resisted changing from standard measurements to the metric system. Celsius is used throughout the world including the United States and Canada. Scientist often use Kelvin and Rankine measuring scales to measure temperature. These temperature scales, Rankine and Kelvin, are uncommonly used in popular culture no matter where you live in the world except by the scientific community and are often used to measure extreme temperatures.