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About This Item

 

Full Description

Applies to direct acting indicating frequency meters, and to non-interchangeable accessories used with frequency meters.
 

Document History

  1. IEC 60051-4 Ed. 5.0 b:2018


    Direct acting indicating analogue electrical measuring instruments and their accessories title - Part 4: Special requirements for frequency meters

    • Most Recent
  2. IEC 60051-4 Ed. 4.0 b:1984

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    Direct acting indicating analogue electrical measuring instruments and their accessories. Part 4: Special requirements for frequency meters

    • Historical Version