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Appendix: SIL declaration of conformity
GB
Functional safety per IEC 61508:2010 / IEC 61511:2004
3.1 FMEDA Pt100 4-wire
(safety function for
4 ... 20 mA output)
λ
[FIT]
5)
DU
λ
[FIT]
5)
DD
λ
+λ
[FIT]
5)
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]
5)
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]
5)
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
T32.xS
stand
alone
10
75
76
- / 93,6 %
6)
1 year
4,52 * 10
7)
-5
99,0 %
T32.xS
stand
alone
10
74
76
- / 93,8 %
6)
1 year
7)
4,38 * 10
-5
99,0 %
T32.xS
stand
alone
10
73
76
- / 93,8 %
6)
1 year
4,33 * 10
7)
-5
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
3)
High stress
16
150
119
935
76
76
88,0 / 93,6 % 86,0 / 93,6 %
7,15 * 10
6,58 * 10
-5
-4
-
-
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
-5
8,76 * 10
-4
-
-
T32.xS with Pt100 2-wire
Close coupled
1)
Low stress
3)
High stress
19
200
112
835
76
76
82,0 / 93,8 % 80,0 / 93,8 %
8,12 * 10
8,76 * 10
-5
-4
-
-
h
9
< 0,01)
avg
WIKA safety manual temperature transmitter T32.xS
Extension wire
2)
4)
Low stress
3)
High stress
130
1.410
955
8.675
76
76
88,0 / 93,6 %
86,0 / 93,6 %
5,71 * 10
6,18 * 10
-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
-4
8,37 * 10
-
-
Extension wire
2)
4)
Low stress
3)
High stress
183
1.910
860
7.673
76
76
82,0 / 93,8 %
80,0 / 93,8 %
8,01 * 10
8,37 * 10
-4
-
-
< 0,0035)
avg
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4)
-3
4)
-3
4)
-3
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