Technical data and ordering data
Leuze electronic
MSI 100/200
116
Safety-related characteristic parameters for IEC 61508 – low demand
With one-channel configuration
With two-channel configuration
From HW03
Up to HW02
From HW03
Up to HW02
HFT
0
0
1
1
SIL
1
1
3
3
PFD
avg
4.35 x 10
-3
4.35 x 10
-3
1.18 x 10
-4
1.18 x 10
-4
Proof test interval
60 months
60 months
60 months
60 months
Mission time
240 months
240 months
240 months
240 months
Substitute depiction as 1oo1 structure for IEC 61508 – low demand
(relevant characteristic values for the process
industry)
With one-channel configuration
With two-channel configuration
From HW03
Up to HW02
From HW03
Up to HW02
HFT
0
0
0
0
SIL
1
1
3
3
Safe failure fraction (SFF)
94.26 %
94.26 %
99.88 %
99.88 %
SD
873 FIT
873 FIT
910 FIT
910 FIT
SU
2379 FIT
2379 FIT
3700 FIT
3700 FIT
DD
32 FIT
32 FIT
21.18 FIT
21.18 FIT
DU
200 FIT
200 FIT
5.45 FIT
5.45 FIT
total
3484 FIT
3484 FIT
4637 FIT
4637 FIT
MTBF
32.44 years
(for MTTR = 8 h)
32.44 years
(for MTTR = 8 h)
24.37 years
(for MTTR = 8 h)
24.37 years
(for MTTR = 8 h)
PFD
avg
9.69 x 10
-5
(for T1 = 1 year)
9.69 x 10
-5
(for T1 = 1 year)
1.23 x 10
-4
(for T1 = 1 year)
1.23 x 10
-4
(for T1 = 1 year)
Safety-related characteristic parameters for EN 50156-2
SIL
Max. 3 (ref. IEC 61508)
Derating
Figure 14-3
Derating curve MSI-EM200-4RO
Legend:
T
A
= ambient temperature
I
L
= current output O
x
T [
A
°C]
I
[A]
L
0
0
0,
5
1
1,
5
2
2,
5
3
3,
5
4
4,
5
2
5
55
30
40
5
0
6
0
Each contact can be loaded with up to 4 A at an
ambient temperature of up to 40 °C.
At an ambient temperature of 55 °C, every con-
tact can be loaded with 1 A, two contacts can
be loaded with 1.4 A or one contact can be
loaded with 2 A.
