KROHNE H250 M40 Safety V1 EN - Manual (Page 8)

5
PROJECT PLANNING
8
H250 M40
www.krohne.com 02/2012 - 4000904201 MA H250 M40 SIL R01 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 KROHNE repair instructions in the printed operating 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 H250/M40-Rxx-en
Technical datasheet H250/M40 – Variable area flowmeter
[D2] MA H250/M40-Rxx-en
Handbook including installation and operating instructions
[D3] exida FMEDA report: KROHNE 10/10020361 R010
MA_H250_M40_SIL2_R01_en_904201_PRT.book Page 8 Thursday, March 1, 2012 10:08 AM