Instrumentation is defined as the art and science of measurement and control of process variables within a production or manufacturing area. The Colleges for Applied Instrumentation inculcates the practical knowledge about various instruments that are used to measure a physical quantity such as flow, temperature, level, distance, angle, or pressure. The Colleges for Applied Instrumentation offers teachings based on principles that are simple as direct reading thermometers and complex as multi-variable process analyzers. The teaching of Applied Instrumentation Courses is utilized in controlling system in refineries, factories, and vehicles. The control of processes is one of the main branches of Applied Instrumentation.