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About This Item

 

Full Description

This part of IEC 60051 applies to direct acting indicating analogue frequency meters of the following types:
* pointer-type frequency meters (as defined in 3.2.11 of IEC 60051-1:2016);
* vibrating-reed frequency meters (as defined in 3.2.12 of IEC 60051-1:2016).
This document also applies to non-interchangeable accessories (as defined in 3.1.23 of IEC 60051-1:2016) used with frequency meters.

All current amendments available at time of purchase are included with the purchase of this document.

 

Document History

  1. BS EN IEC 60051-4:2021

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

    • Most Recent
  2. BS 89-4:1990


    Direct acting indicating analogue electrical measuring instruments and their accessories-Specification for special requirements for frequency meters

    • Historical Version
  3. BS 89:1977


    Specification for direct acting indicating electrical measuring instruments and their accessories

    • Historical Version