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About This Item

 

Full Description

Gives definitions, permissible limits of error for instruments and accessories under various conditions of operation, constructional requirements, marking, symbols, and testing, for ammeters, voltmeters, wattmeters, varmeters, phasemeters, power factor meters, frequency meters, ohmmeters, and synchroscopes, including multi-range and multi-purpose instruments of these types.
 

Document History

  1. AS 1042-1973

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    Direct-acting indicating electrical measuring instruments and their accessories

    • Most Recent
  2. AS C42-1964


    Electrical indicating instruments

    • Historical Version
  3. INT 103-1945


    Interim Specification for Indicating Ammeters and Volumeters (Panel type, with Maximum Flange Dimension not Exceeding 3 1/2 inches)

    • Historical Version
  4. AS C42-1930


    Indicating ammedters, voltmeters, wattmeters, frequency and power-factor meters

    • Historical Version
  5. AS C42-1927


    Indicating ammedters, voltmeters, wattmeters, frequency and power-factor meters

    • Historical Version