Applies to X-t recorders used for the measurement of voltage and current which measure and record analogue electrical quantities as a function of time. Also applies to non-interchangeable accessories and accessories of limited interchangeability (e.g. shunts, impedance-elements) if they are used with the recorder and the adjustments have been made for the combination. IEC 1143-1 and IEC 1143-2 cancel and replace IEC 484 (1974).
DS/EN 61143-1/A1:1998 history
1998DS/EN 61143-1/A1:1998 Electrical measuring instruments - X-t recorders - Part 1: Definitions and requirements
1996DS/EN 61143-1:1996 Electrical measuring instruments - X-t recorders - Part 1: Definitions and requirements