Standard [WITHDRAWN]
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This standard specifies the minimum requirements and tests for electrical apparatus for the detection and measurement of combustible gases, toxic gases or oxygen using software and/or digital technologies. Additional requirements are specified if compliance is required for the operating mode with low demand mode and the Safety Integrity Level 1 (SIL 1) in accordance with the EN 61508 series. The responsible Committee is Subcommittee UK 966.1 "Mess- und Warngeräte für gefährliche Gase" ("Measurement and warning devices for dangerous gases") of the DKE (German Commission for Electrical, Electronic and Information Technologies) at DIN and VDE.
This document replaces DIN EN 50271:2002-05; VDE 0400-21:2002-05 .
This document has been replaced by: DIN EN 50271:2019-03; VDE 0400-21:2019-03 .