CENELEC - EN IEC 60051-2
Direct acting indicating analogue electrical measuring instruments and their accessories - Part 2: Special requirements for ammeters and voltmeters
|Publication Date:||1 April 2021|
|ICS Code (Measurement of electrical and magnetic quantities):||17.220.20|
This part of IEC 60051 applies to direct acting indicating ammeters and voltmeters having an analogue display.
NOTE For multi-function instruments, see IEC 60051-7.
It also applies to:
• direct acting indicating ammeters and voltmeters whose scale marks do not correspond directly to their electrical input quantity, provided that the relationship between them is known;
• direct acting indicating ammeters and voltmeters and accessories having electronic devices in their measuring and/or auxiliary circuits.
This document does not apply to:
- special purpose instruments which are covered by their own IEC standards;
- special purpose devices which are covered by their own IEC standards when they are used as accessories.