6 Safety Manual
44
6.6.3
Redundant use of the system
If the transmitter is used redundantly (HFT > 0), it can meet SIL 3 according to DIN EN 61508-2, 7.4.3.2 (systematic suitability)
and 7.4.4.2.4 (suitability of the architecture).
707071 safety architecture
1oo1D
This corresponds to architecture category 2 according to DIN EN ISO 13849, i.e.
the system has a safety channel and an additional diagnostics channel.
Hardware failure tolerance
HFT = 0
Safe failure fraction
SFF
≥
90 %
CCF
If the system is used redundantly: calculation according to DIN EN 61508 Part 7
Appendix D and/or DIN EN ISO 13849-1 Table F.1 at least 65
Average failure probability of a safety
function on demand (overall system)
SIL 2:
Low demand: PFD
avg
< 10
-2
High demand: PFH < 10
-6
Interval for the proof test T
i
max. 10 years
Lifetime
10 years
Planned operating duration
Mission time (T
M
)
max. 10 years
Architecture according to DIN EN ISO
13849-1
Category 2
MTTF
d
-DC
avg
according to DIN EN ISO
13849-1 Table K.1
PL c:
≥
22 years (DC
avg
≥
60 %)
Modes of operation and software class
according to DIN EN 60730-2-9
The system has the following modes of operation: 2K
Only in the case of redundancy: 2N
Software class C
Safety feature
Requirement / comment
Содержание dTRANS T06
Страница 16: ...3 Mounting 16 3 Mounting 3 1 Dimensions...
Страница 18: ...3 Mounting 18 3 4 Dismounting Place screwdriver in release catch and press upwards 1 Remove housing upwards 2...
Страница 30: ...5 Startup of the device 30 Here is a summary of the parameters from the figure above...
Страница 31: ...5 Startup of the device 31...
Страница 40: ...6 Safety Manual 40 0 0 6 6 0 0 6 6 7 0 0 6 0 0 6 0 0 6 0 0 6 8...
Страница 59: ...6 Safety Manual 59...
Страница 79: ...8 Device info 79...
Страница 103: ...12 What to do if 103...
Страница 104: ...13 Certificates 104 13 Certificates SEBS A 093409 14 V1 0...
Страница 110: ...13 Certificates 110...
Страница 111: ......