7
SAFETY-RELATED CHARACTERISTICS
18
IPAQ C520/R520
www.inor.com
02/2019 - 86B520S001 - AD 520 SIL R1.4 en
Single TC sensor
Dual TC sensor with activated sensor drift monitoring
The boxes marked in light grey in the following tables mean that the calculated PFD
avg
and/or
PFH values are within the allowed range for SIL 2 according to table 2 / 3 of IEC 61508-1 but do not
fulfill the requirement to not claim more than 35% of this range, i.e. to be better than or equal to
3.50E-03 respectively 3.50E-07 1/h.
The boxes marked in medium grey mean that the calculated PFD
avg
and PFH values are within the
allowed range for SIL 2 according to table 2 / 3 of IEC 61508-1 and do fulfill the requirement to not
claim more than 35% of this range, i.e. to be better than or equal to 3.50E-03 respectively
3.50E-07 1/h.
The boxes marked in dark grey indicate that the PFD
avg
respectively the PFH values do not fulfill
the requirements for SIL 2 of table 2 / 3 of IEC 61508-1.
Failure category
SFF PFD
avg
at T
proof
=
PFH
SIL AC
λ
SD
λ
SU
λ
DD
λ
DU
[FIT]
[%]
1 year
2 years
5 years
10 years
Close
coupled low
stress
0
0
492
45
91.6
2.27E-04
4.22E-04
1.01E-03
1.98E-03
4.50E-08
SIL 2
Close
coupled high
stress
0
0
2297
140
94.3
7.24E-04
1.33E-03
3.15E-03
6.19E-03
1.40E-07
(SIL 2)
Extension
wires low
stress
0
0
1297
140
90.3
7.00E-04
1.31E-03
3.13E-03
6.16E-03
1.40E-07
(SIL 2)
Extension
wires high
stress
0
0
18397
2040 90.0
1.02E-02
1.90E-02
4.56E-02
8.98E-02
2.04E-06
(SIL 1)
Failure category
SFF PFD
avg
at T
proof
=
PFH
SIL AC
λ
SD
λ
SU
λ
DD
λ
DU
[FIT]
[%]
1 year
2 years
5 years
10 years
Close
coupled low
stress
0
0
597
41
93.6
2.10E-04
3.88E-04
9.21E-04
1.81E-03
4.10E-08
SIL 2
Close
coupled high
stress
0
0
4387
50
98.9
3.44E-04
5.61E-04
1.21E-03
2.30E-03
5.00E-08
SIL 2
Extension
wires low
stress
0
0
2387
50
97.9
2.96E-04
5.13E-04
1.16E-03
2.25E-03
5.00E-08
(SIL 2)
Extension
wires high
stress
0
0
40197
240
99.4
2.11E-03
3.15E-03
6.27E-03
1.15E-02
2.40E-07
(SIL 1)
Содержание IPAQ C520
Страница 22: ...8 APPENDIX 22 IPAQ C520 R520 www inor com 02 2019 86B520S001 AD 520 SIL R1 4 en...
Страница 23: ...APPENDIX 8 23 IPAQ C520 R520 www inor com 02 2019 86B520S001 AD 520 SIL R1 4 en...
Страница 25: ...APPENDIX 8 25 IPAQ C520 R520 www inor com 02 2019 86B520S001 AD 520 SIL R1 4 en...
Страница 27: ...NOTES 9 27 IPAQ C520 R520 www inor com 02 2019 86B520S001 AD 520 SIL R1 4 en...
