Emerson ROSEMOUNT 5300 Dokumentacja Strona 76

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Reference Manual
00809-0600-4026, Rev BA
December 2011
Rosemount Process Radar
5-20
Failure Rate Data
The FMEDA report includes failure rates and common cause Beta factor
estimates. The full report is accessible at
www.emersonprocess.com/rosemount/safety/PriorUse.htm.
Useful Lifetime
The established failure rates of electrical components apply within the useful
lifetime, which should be based on experience. According to IEC 61508-2,
7.4.7.4, note 3, the useful lifetime often lies within a range of 8 to 12 years for
transmitters.
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