2014-09
14
Safety Manual SIL KFD2-ST*4-(Ex)*, KFD2-CR4-(Ex)*
Safety Recommendation
Our experience has shown that the useful life time of a Pepperl+Fuchs product
can be higher
if there are no components with reduced life time in the safety path (like
electrolytic capacitors, relays, flash memory, opto coupler) which can
produce dangerous undetected failures and
if the ambient temperature is significantly below 60 °C.
Please note that the useful life time refers to the (constant) failure rate of the
device.
3.4 Installation and Commissioning
During installation all aspects regarding the SIL level of the loop must be
considered. The safety function must be tested to ensure the expected outputs
are given. When replacing a device, the loop must be shut down. In all cases,
devices must be replaced by the same type.
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www.acornfiresecurity.com
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