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

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Active

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Electronic (PDF)

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10 minutes

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200 business days

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ENGLISH

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.

CEI EN IEC 60051-4 PDF