KROHNE H250 M9 Safet V2 EN - Manual (Page 2)

CONTENTS
2 www.krohne.com 06/2013 - 4000656702 MA H250-M9 SIL R03
H250 M9
1 Introduction 3
1.1 Fields of application ......................................................................................................... 3
1.2 User benefits .................................................................................................................... 3
1.3 Relevant standards / literature........................................................................................ 3
2 Terms and definitions 4
3 Description 5
3.1 Functional principle.......................................................................................................... 5
4 Specification of the safety function 6
4.1 Description of the failure categories ............................................................................... 6
5 Project planning 7
5.1 Applicable device documentations................................................................................... 7
5.2 Project planning, behaviour during operation and malfunction...................................... 7
6 Life time / Proof tests 8
6.1 Life time............................................................................................................................ 8
6.2 Proof tests ........................................................................................................................ 9
7 Safety-related characteristics 10
7.1 Assumptions ................................................................................................................... 10
7.2 Specific safety-related characteristics .......................................................................... 10
8 Annex 11
8.1 Annex 1 ........................................................................................................................... 11
8.2 Annex 2 ........................................................................................................................... 12
9 Notes 13
MA_H250_M9_SIL2_R03_en_656702_PRT.book Page 2 Wednesday, June 26, 2013 9:08 AM