14
57-650 Eclipse
®
SIL Functional Safety Manual
7.3
Specific Model 705 Values
7.4
PFD Graph
Proof Test Interval
(months)
PFD avg.
(SIL 2)
PFD avg.
(SIL 1)
0
0.00E+00
0.00E+00
6
2.37E-04
4.05E-04
12
4.69E-04
8.06E-04
18
7.02E-04
1.21E-03
24
9.34E-04
1.61E-03
30
1.17E-03
2.01E-03
36
1.40E-03
2.41E-03
48
1.86E-03
3.21E-03
60
2.33E-03
4.01E-03
72
2.79E-03
4.81E-03
84
3.26E-03
5.62E-03
96
3.72E-03
6.42E-03
108
4.18E-03
7.22E-03
120
4.65E-03
8.02E-03
Eclipse
®
Model 705-51-xx-xxx
Eclipse
®
Model 705-51Ax-xxx
Eclipse
®
Model 705-510x-xxx
SIL
SIL 2
SIL 1
HFT
0
0
SFF
91.0%
84.5%
PFDavg
4.69E-04
8.06E-04
Proof Test Interval
Annually
(refer to table below for
other periods)
Annually
(refer to table below for
other periods)
Specific Model 705
9.00E-03
8.00E-03
7.00E-03
6.00E-03
5.00E-03
4.00E-03
3.00E-03
2.00E-03
1.00E-03
0.00E+00
0
1
2
3
4
5
6
7
8
9
10
Years
P
ro
b
a
b
il
it
y
70
5-5
10
*-*
**
705
-51A
*-**
*
PFD
AVG
(t) Eclipse
®
Enhanced Model 705