KROHNE DK 32-DK 34-DK 37 Safety V2 EN - Manual (Page 8)

5
PROJECT PLANNING
8
DK32 - DK34 - DK37
www.krohne.com 06/2013 - 4000574703 MA DK32 34 37 SIL R03 en
Project planning
5.1 Applicable device documentation
5.2 Project planning, behaviour during operation and malfunction
• The stress levels shall be average for an industrial outdoor environment and shall be similar
to exida Profile 2 or Profile 4 with temperature limits within the manufacture’s rating. Other
environmental characteristics are assumed to be within the manufacturer’s ratings.
• Under normal conditions the maximum operating time will be 10 years.
• Requirements made in the operating manual have to be kept.
• Repair and inspection intervals have to be based on the safety calculations.
• Follow the repair instructions of the manufacturer in the printed manual.
• Modifications made without specific authorisation of the manufacturer are strictly prohibited.
• Follow the installation and operating instructions.
• The application program in the safety logic solver is configured to detect under-range and
over-range failures and does not automatically trip on these failures; therefore these failures
have been classified as dangerous detected failures. The failure rates of the safety logic
solver are not included in the listed failures rates.
• The parameters given by the FMEDA are considered as planning support. The end user is
responsible for the overall functional safety of the application.
• For help to find the correct order text see annex 1.
[D1] TD DK32/34/37-Rxx-en
Technical datasheet DK32, DK34, DK37 – Variable area flowmeter
[D2] MA DK32/34/37-Rxx-en
Handbook including installation and operating instructions
[D3] exida FMEDA report: KROHNE 08/11-46 R009 Version 2
MA_DK32_34_37_SIL_R03_en_574703_PRT.book Page 8 Wednesday, June 26, 2013 9:17 AM