Electronic instrument calibration system, electronic instrument calibration method and relevant product

The embodiment of the invention provides an electronic instrument calibration system, an electronic instrument calibration method and a relevant product. An electronic instrument is a multimeter or aclamp meter. According to the system, a calibration source is controlled to output a calibration point through a main control module; the main control module sends a collection instruction to the electronic instrument; the electronic instrument collects the calibration point according to the collection instruction to obtain a collection value; the electronic instrument sends the collection value to the main control module; the main control module determines a calibration coefficient according to the collection value and a standard value corresponding to the calibration point; the main controlmodule sends the calibration coefficient to the electronic instrument; and the electronic instrument saves the calibration coefficient and performs calibration according to the calibration coefficient. In this way, through wir