Pepperl+Fuchs KFD2-STC4-Ex Series User Manual

2014-09
20
Safety Manual SIL KFD2-ST*4-(Ex)*, KFD2-CR4-(Ex)*
Abbreviations
5 Abbreviations
DCS Distributed Control System
ESD Emergency Shutdown
FIT Failure In Time in 10
-9
1/h
FMEDA Failure Mode, Effects and Diagnostics Analysis

s
Probability of safe failure

dd
Probability of dangerous detected failure

du
Probability of dangerous undetected failure

no effect
Probability of failures of components in the safety path that have
no effect on the safety function

not part
Probability of failure of components that are not in the safety path

total (safety function)
Safety function
HFT Hardware Fault Tolerance
MTBF Mean Time Between Failures
MTTR Mean Time To Repair
PFD
avg
Average Probability of Failure on Demand
PFH Probability of dangerous Failure per Hour
PTC Proof Test Coverage
SFF Safe Failure Fraction
SIF Safety Instrumented Function
SIL Safety Integrity Level
SIS Safety Instrumented System
T
proof
Proof Test Interval
Safety Manual SIL KFD2-ST*4-(Ex)*, KFD2-CR4-(Ex)*
www.acornfiresecurity.com
www.acornfiresecurity.com

Pepperl+Fuchs KFD2-STC4-Ex Series Specifications

General

Brand	Pepperl+Fuchs
Model	KFD2-STC4-Ex Series
Category	Power Supply
Language	English