Calibration is the process of determining and adjusting an instrument’s accuracy to make sure its accuracy is within the manufacturer’s specifications.
Calibration is an essential part of industrial measurement and control. It can be defined as the comparison of specific values of the input and output of an instrument with a corresponding reference standard.
It offers a guarantee to the device or instrument that it operates with the required accuracy and the range specifications under the stipulated environmental conditions. Calibrated devices permit a manufacturer or processor to produce a quality product with desirable or required specifications. By this process, the errors and corrections are revealed.
Calibration must be performed periodically to test the validity of the performance of the device or the system and requires the use of a standard for comparison of values. These comparisons require operator skill, availability of good reference standards, and standard environments.