Sicherheitstechnische Kenngrößen - Endress+Hauser Liquiphant FTL51B Handbuch

Liquiphant FTL51B mit Elektronikeinsatz FEL61
1.1 Sicherheitstechnische Kenngrößen
SIL_00301_01.19
General
Device designation and permissible types
Safety-related output signal
Fault signal
Process variable/function
Safety function(s)
Device type acc. to IEC 61508-2
Operating mode
Valid hardware version
Valid so ware version
Safety manual
Type of evalulation
(check only one box)
Evaluation through – report/certificate no.
Test documents
SIL - Integrity
Systematic safety integrity
Hardware safety integrity
FMEDA
Safety function
2),3)
λ
DU
2),3)
λ
DD
2),3)
λ
SU
2),3)
λ
SD
SFF
PFD (T = 1 year) 3)
avg 1
PFH 3)
PTC 4)
2),3)
λ
total
Diagnostic test interval
Fault reaction time 6)
Comments
None
Declaration
Our internal company quality management system ensures information on safety-related systematic faults which become evident
in the future
1)
Observe limitation by diagnostic test interval
2)
FIT = Failure In Time, number of failures per 10
3)
Valid for average ambient temperature up to +40 °C (+104 °F)
For continuous operation at ambient temperature close to +60 °C (+140 °F), a factor of 1.5 should be applied
4) PTC = Proof Test Coverage
5)
All diagnostic functions are performed at least once within the diagnostic test interval
6)
Maximum time between error recognition and error response
Endress+Hauser
(single channel architecture)
Test sequence A
Test sequence B
5)
9
h
Liquiphant with electronic insert FEL61
FTL51B–**A1*************+LA
2-wire
Thyristor output is blocked (I < 3.8 mA)
Level switch for liquids
Overfill protection or operating maximum/minimum detection
Type A
Low Demand Mode High Demand Mode
01.00.ww (ww: any double number)
01.01.zz (zz: any double number)
FY01004F
Complete HW/SW evaluation parallel to development incl.
FMEDA and change request acc. to IEC 61508-2, 3
Evaluation of "proven in use" performance for HW/SW incl. FMEDA
and change request acc. to IEC 61508-2, 3
Evaluation of HW/SW field data to verify „prior use" acc. to
IEC 61511
Evaluation by FMEDA acc. to IEC 61508-2 for devices w/o so ware
TÜV Rheinland / 968/FSP 1388.01/19
Development documents
Single channel use (HFT = 0)
Multi channel use (HFT ³ 1)
MIN MAX
35 FIT 19 FIT
140 FIT 106 FIT
151 FIT 167 FIT
5 FIT 41 FIT
90% 94%
1.52 × 10 -4 8.49× 10
3.47 × 10 -8 1/h 1.94 × 10
95% 96%
25% 44%
331 FIT 333 FIT
≤ 60 s, except RAM check ≤ 10 min
≤ 3 s
Konformitätserklärung
Type B
1) Continuous Mode
Test reports Data sheets
SIL 2 capable
SIL 2 capable
SIL 2 capable
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—
—
—
—
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-5 —
-8 1/h —
—
—
—
—
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SIL 3 capable
SIL 3 capable
SIL 3 capable
A0039470
5