What is calibration? Why does the instrument need calibration?

The calibration of instruments and measuring tools is to make instruments and equipment run normally without making mistakes. Secondly, it is required by relevant national laws and regulations, and it is difficult to obtain approval for instruments and measuring tools without test reports and standards.

All kinds of measurement standards used all over the world must be traced back to the same standard, so as to ensure the consistency of quality and not vary from place to place, so any instrument must be calibrated. In addition, the error of measuring instruments usually increases with time. Therefore, any instrument must be calibrated on time in order to maintain the required accuracy at any time.