Cover DIN EN IEC 60051-4 VDE 0411-51-4:2022-07
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DIN EN IEC 60051-4 VDE 0411-51-4:2022-07

Direct acting indicating analogue electrical measuring instruments and their accessories title

Part 4: Special requirements for frequency meters

(IEC 60051-4:2018); German version EN IEC 60051-4:2021
Class/Status: Standard, valid
Released: 2022-07
VDE Art. No.: 0400526

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.