KROHNE H250 M40 Safety V2 EN - Manual (Page 3)

INTRODUCTION
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3
H250 M40
www.krohne.com 06/2013 - 4000904202 MA H250 M40 SIL R02 en
Introduction
1.1 Field of application
Measurement of volume flow rate of liquids, gases and vapours that shall meet the special safety
requirements according to IEC 61508.
The measuring device meets the requirements regarding
• Functional safety in accordance with IEC 61508-2:2010 (Edition 2)
• EMC directive 2004/108/EC and NAMUR recommandation NE21
• ATEX directive 94/9/EC
• PED directive 97/23/EC
For further information please refer to the H250 M40 Declaration of Conformity at the
Downloadcenter of the KROHNE-Website www.krohne.com.
1.2 User benefits
Use for
• Volume flow monitoring
• Continuous flow measurement and local analog indication
• Easy commissioning
• Excellent price-performance ratio
1.3 Relevant standards / Literature
[N1] IEC 61508-2:2010 - Functional Safety of Electrical/Electronic/Programmable Electronic
Safety-Related Systems
[N2] Electrical & Mechanical Component Reliability Handbook, 2nd Edition 2008, exida L.L.C.
ISBN 978-0-9727234-6-6
[N3] IEC 60654-1:1993-02 2nd edition, Industrial process measurement and control
equipment - Operating conditions - Part 1: Climatic conditions
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