Directed Electronics 3100 Instrucciones de operaciones Pagina 32

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Mode switch is set to "max"
λ
sd
49 FIT safe detected failure (1 FIT = failure/10
9
h)
λ
su
387 FIT safe undetected failure
λ
dd
163 FIT dangerous detected failure
λ
du
18 FIT dangerous undetected failure
SFF > 97 % Safe Failure Fraction
DC
S
11 % Diagnosis coverage DC
S
= λ
sd
/(λ
sd
+ λ
su
)
DC
D
90 % Diagnosis coverage DC
D
= λ
dd
/(λ
dd
+ λ
du
)
Mode switch is set to "min"
λ
sd
39 FIT safe detected failure
λ
su
373 FIT safe undetected failure
λ
dd
168 FIT dangerous detected failure
λ
du
36 FIT dangerous undetected failure
SFF > 94 % Safe Failure Fraction
DC
S
9 % Diagnosis coverage DC
S
= λ
sd
/(λ
sd
+ λ
su
)
DC
D
82 % Diagnosis coverage DC
D
= λ
dd
/(λ
dd
+ λ
du
)
Mode switch is set to "max"
λ
sd
39 FIT safe detected failure
λ
su
352 FIT safe undetected failure
λ
dd
182 FIT dangerous detected failure
λ
du
43 FIT dangerous undetected failure
SFF > 93 % Safe Failure Fraction
DC
S
10 % Diagnosis coverage DC
S
= λ
sd
/(λ
sd
+ λ
su
)
DC
D
81 % Diagnosis coverage DC
D
= λ
dd
/(λ
dd
+ λ
du
)
Mode switch is set to "min"
λ
sd
45 FIT safe detected failure
λ
su
361 FIT safe undetected failure
λ
dd
173 FIT dangerous detected failure
λ
du
37 FIT dangerous undetected failure
SFF > 94 % Safe Failure Fraction
Overll protection
Dry run protection
Functional safety
32 OPTISWITCH 310 0 C - with two-wire output
29955-EN-060112
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