The instrument calibration station employs digital technologies such as machine vision instrument recognition, multi-signal source control, and fully automated computer-controlled metrology to calibrate and verify locomotive pressure gauges, voltmeters, ammeters, and speedometers. The station can perform instrument maintenance and testing, and serves as a metrological standard for establishing metrological standards within the section. This significantly reduces the impact of subjective human factors, improves the accuracy and efficiency of instrument metrology testing, and reduces the investment in metrology personnel and facilities.