WIKA T32.1S Sicherheitshandbuch Seite 18

Appendix: SIL declaration of conformity
EN
3.1 FMEDA Pt100 4-wire
(safety function for
4 ... 20 mA output)
λ [FIT]
5)
DU
λ [FIT]
5)
DD
λ +λ [FIT]
SU SD
SFF Sensor/Transmitter
PFD for T
avg proof
DC diagnostic coverage
3.2 FMEDA Pt100 3-wire
(safety function for
4 ... 20 mA output)
λ [FIT]
5)
DU
λ [FIT]
5)
DD
λ +λ [FIT]
SU SD
SFF Sensor/Transmitter
PFD for T
avg proof
DC diagnostic coverage
3.3 FMEDA Pt100 2-wire
(safety function for
4 ... 20 mA output)
λ [FIT]
5)
DU
λ [FIT]
5)
DD
λ +λ [FIT]
SU SD
SFF Sensor/Transmitter
PFD for T
avg proof
DC diagnostic coverage
1) Close coupled: The temperature transmitter is located in the connection head of the electrical thermometer.
2) Extension wire: The temperature transmitter is located outside of the connection head of the electrical thermometer, for
example in a cabinet distant from the measuring point
3) Low stress applies to a low vibration environment or the use of a cushioned sensor. Operation below 67 % maximum
rating according to specification
4) High stress applies to a high vibration environment. Operation above 67 % maximum rating according to specification
5) FIT = Failure in time, Unit: Quantity of failures per 10
6) Green marked values: SFF sufficient for SIL 2
7) Green marked values: PFD
Yellow marked values: PFD
18
SIL Declaration of Conformity
Functional safety per IEC 61508:2010
T32.xS
stand
alone
10
75
76
5)
- / 93,6 %
6)
1 year 4,52 * 10
7)
99,0 %
T32.xS
stand
alone
10
74
76
5)
- / 93,8 %
6)
1 year 4,38 * 10
7)
99,0 %
T32.xS
stand
alone
10
73
76
5)
- / 93,8 %
6)
4,33 * 10
1 year
7)
99,0 %
< 35 % of the maximum allowed value for SIL 2 (PFD
avg
< maximum allowed value for SIL 2 (PFD
avg
T32.xS with Pt100 4-wire
Close coupled
1)
Low stress High stress
3)
16 150
119 935
76 76
88,0 / 93,6 % 86,0 / 93,6 %
7,15 * 10 6,58 * 10
-5 -5
- -
T32.xS with Pt100 3-wire
Close coupled
1)
Low stress High stress
3)
19 200
113 836
76 76
81,3 / 93,8 % 80,0 / 93,8 %
8,32 * 10 8,76 * 10
-5 -5
- -
T32.xS with Pt100 2-wire
Close coupled
1)
Low stress High stress
3)
19 200
112 835
76 76
82,0 / 93,8 % 80,0 / 93,8 %
8,12 * 10 8,76 * 10
-5 -5
- -
h
9
avg
WIKA safety manual temperature transmitter T32.xS
Extension wire
2)
Low stress High stress
4) 3)
130 1.410
955 8.675
76 76
88,0 / 93,6 % 86,0 / 93,6 %
5,71 * 10 6,18 * 10
-4 -4
- -
Extension wire
2)
Low stress High stress
4) 3)
183 1.910
861 7.674
76 76
82,0 / 93,8 % 80,0 / 93,8 %
8,01 * 10 8,37 * 10
-4 -4
- -
Extension wire
2)
Low stress High stress
4) 3)
183 1.910
860 7.673
76 76
82,0 / 93,8 % 80,0 / 93,8 %
8,01 * 10 8,37 * 10
-4 -4
- -
< 0,0035)
avg
< 0,01)
4)
-3
4)
-3
4)
-3
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