KROHNE DK 32-DK 34-DK 37 Safety V1 EN User Manual
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CONTENTS
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www.krohne.com
02/2012 - 4000574702 MA DK32 34 37 SIL R02 en
DK32 - DK34 - DK37
1 Introduction
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1.1 Field of application ........................................................................................................... 3
1.2 User benefits .................................................................................................................... 3
1.3 Relevant standards / Literature....................................................................................... 3
2 Terms and definitions
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2.1 Description of the considered profiles............................................................................. 4
3 Description
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3.1 Description of the subsystem........................................................................................... 5
3.2 Functional principle.......................................................................................................... 6
4 Specification of the safety function
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4.1 Description of the failure categories ............................................................................... 7
5 Project planning
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5.1 Applicable device documentation .................................................................................... 8
5.2 Project planning, behaviour during operation and malfunction...................................... 8
6 Life time / Proof tests
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6.1 Life time............................................................................................................................ 9
6.2 Proof tests ...................................................................................................................... 10
7 Safety-related characteristics
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7.1 Assumptions ................................................................................................................... 11
7.2 Specific safety-related characteristics .......................................................................... 12
8 Annex
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8.1 Annex 1 ........................................................................................................................... 18
8.2 Annex 2 ........................................................................................................................... 18
9 Notes
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MA_DK32_34_37_SIL_R02_en_574702_PRT.book Page 2 Thursday, March 1, 2012 9:53 AM