KROHNE H250 M9 Safet V1 EN - Manual (Page 7)

PROJECT PLANNING
5
7
H250
www.krohne.com 02/2012 - 4000656701 MA H250-M9 SIL R02
Project planning
5.1 Applicable device documentations
5.2 Project planning, behaviour during operation and malfunction
• Average temperature for the parts in the display section M9 has to be +40°C over a long
period of time. The max. allowed process temperature in relation to max. ambient
temperature is shown in Figure 5-1.
• Under normal conditions the maximum operating time will be 10 years.
• Requirements made in the Handbook have to be kept.
• Repair and inspection intervals have to be based on the safety calculations.
• Follow the KROHNE repair instructions in the printed Handbook
• Modifications made without specific authorisation of the manufacturer are strictly prohibited.
• For help to find the correct Description code see ANNEX 1.
[D1] TD H250 Rxx en
Technical datasheet H250 – Variable area flowmeter
[D2] MA H250 Rxx en
Handbook including installation and operating instructions
[D3] exida FMEDA report: KROHNE 05/06-20 R007
Figure 5-1: Relation between process temperature, ambient temperature and temperature of display section M9
MA_H250_M9_SIL2_R02_en_656701_PRT.book Page 7 Thursday, March 1, 2012 10:26 AM