Other Safety-Related Characteristic Values; Useful Lifetime Of Electrical Components - Endress+Hauser Proserve NMS80 Functional Safety Manual

Declaration of conformity
6
1.1

Other safety-related characteristic values

Characteristic value as per IEC 61508
1)
MTBF
System reaction time as per DIN EN 61508-2
1) According to Siemens SN29500 This value takes into account failure modes relevant to the function of the
electronic components.
1.2

Useful lifetime of electrical components

The established failure rates of electrical components apply within the useful lifetime as
per IEC 61508-2:2010 section 7.4.9.5 note 3. In accordance with DIN EN 61508-2:2011
section 7.4.9.5 national footnote N3, appropriate measures taken by the manufacturer
and operator can extend the useful lifetime.
Proserve NMS80
Value
29 Jahre
In "Expert mode":
User configurable
Endress+Hauser