TY - JOUR N2 - A metrological verification of a high precision digital multimeter was made by the laboratory of calibration of programmable electrical multifunction instruments of the National Institute of Metrological Research (INRIM) in order to verify its accuracy and stability. The instrument had been tested for a period of six months for five low-frequency electrical quantities (DC and AC Voltage and Current and DC Resistance). Its stability and precision were compared with the accuracy specifications of the manufacturer. As a new approach, a performance index of the DMM was introduced and evaluated for each examined measurement point. The DMM showed a satisfactory agreement with its specifications to be considered at the level of other top-class DMMs and even better in some measurements points. L1 - http://www.czasopisma.pan.pl/Content/111963/PDF/06_MMS-2019-2_06-12.pdf L2 - http://www.czasopisma.pan.pl/Content/111963 PY - 2019 IS - No 2 EP - 296 DO - 10.24425/mms.2019.128356 KW - digital multimeter KW - calibration KW - measurement uncertainties KW - low-frequency electrical measure-ments KW - performance index KW - measurement specifications A1 - Galliana, Flavio A1 - Lanzillotti, Marco PB - Polish Academy of Sciences Committee on Metrology and Scientific Instrumentation VL - vol. 26 DA - 2019.06.25 T1 - Evaluation of a high-precision digital multimeter by the laboratory of calibration of multifunction electrical instruments of INRIM SP - 283 UR - http://www.czasopisma.pan.pl/dlibra/publication/edition/111963 T2 - Metrology and Measurement Systems ER -