Labom CI4 Series Sil Instructions

Transmitter PASCAL Ci4
Type series CI4xxx
SIL Instructions
Safety-related parameters
Safety Integrity Level
Operating Modes
Achitecture
Device Type
Hardware Fault Tolerance
Safe Failure Fraction
Failure rate for safe detected failures
Failure rate for safe undetected fail-
ures
Failure rate for dangerous detected
failures
Failure rate for dangerous undetected
failures
Probability of a dangerous undetect-
ed failure per hour
Mean time between failures =
Mean time to failure
Mean time to dangerous failure
Inspection Interval
Probability of a dangerous undetected
failure on demand
for MTTR = MRT = 8 h
LABOM Mess- und Regeltechnik GmbH Im Gewerbepark 13 27798 Hude Germany
Hotline: +49 4408 804-444 Fax: +49 4408 804-100 e-mail: sales@labom.com www.labom.com
SIL2
Low and continuous demand mode
1oo1
B
HFT 0
SFF 95,29 %
 -7
1,81∙10
1/h
SD
 -7
3,11∙10
1/h
SU
 -7
3,42∙10
1/h
DD
 -8
4,13∙10
1/h
DU
-8
4,13∙10
PFH 1/h
MTBF 130 a
=
MTTF
MTTF 2764 a
d
T 1 year
1
-4
1,84∙10 3,64∙10
PFD
2 years 3 years
-4 -4
5,45∙10
SA_001_2019-07_10.00
5 years
-4
9,06∙10
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