KROHNE H250 M40 Safety V2 EN - Manual (Page 2)

CONTENTS
2 www.krohne.com 06/2013 - 4000904202 MA H250 M40 SIL R02 en
H250 M40
1 Introduction 3
1.1 Field of application ........................................................................................................... 3
1.2 User benefits .................................................................................................................... 3
1.3 Relevant standards / Literature....................................................................................... 3
2 Terms and definitions 4
2.1 Description of the considered profiles............................................................................. 4
3 Description 5
3.1 Functional principle.......................................................................................................... 5
3.2 Description of the subsystem........................................................................................... 6
4 Specification of the safety function 7
4.1 Description of the failure categories ............................................................................... 7
5 Project planning 8
5.1 Applicable device documentation .................................................................................... 8
5.2 Project planning, behaviour during operation and malfunction...................................... 8
6 Life time / Proof tests 9
6.1 Life time............................................................................................................................ 9
6.2 Proof tests ...................................................................................................................... 10
7 Safety-related characteristics 11
7.1 Assumptions ................................................................................................................... 11
7.2 Specific safety-related characteristics .......................................................................... 12
8 Annex 16
8.1 Annex 1 ........................................................................................................................... 16
8.2 Annex 2 ........................................................................................................................... 17
9 Notes 18
MA_H250_M40_SIL2_R02_en_904202_PRT.book Page 2 Wednesday, June 26, 2013 9:04 AM