MSA SUPREMATouch - Page 79

SUPREMATouch
78
Special conditions to comply with the requirements of IEC 61508
MSA
US
Safety-relevant parameters without using the MLE 10 Modules
1
Except Inputmodules [MCI, MPI, MFI, MSI]; → HFT = 0!
Safety-relevant parameters using the MLE 10 Modules
1
Except Inputmodules [MCI, MPI, MFI, MSI]; → HFT = 0!
Concerning the configuration variations it has to be considered, that the sensors were not part of
the test and their suitability for the respective Safety Integrity Level [SIL] has to be proven seper-
ately.
PFH PFD SFF l
DU
l
DD
HFT
Configuration 1 3.8*10
-7
[4% of SIL1]
< 2*10
-3
[2.1% of SIL1]
97% 393 fit 4555 fit 0
Configuration 2 2.5*10-8
[3% of SIL2]
1.3*10
-4
[1.3% of SIL2]
97% 393 fit 4555 fit 1
1
Configuration 3
8.2*10-9
[8% of SIL3]
4.0*10
-5
[4.0% of SIL3]
97% 393 fit 4555 fit 1
PFH PFD SFF HFT
Configuration 1 With and without CAN Modules: < 4*10
-7
< 2*10
-3
92% 0
Configuration 2 With and without CAN Modules: < 7*10
-8
< 2*10
-4
94% 1
1
Configuration 3
Without CAN Modules: = 3,4*10
-8
< 2*10
-5
94% 1With CAN-Bridge: = 4,4*10
-8
With CAN-Bridge and CAN-LWL: = 5,3*10
-8