Vega VEGAPULS 61, Safety Manual

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1 F unctional safety
1 . 1 I n general
T his safety manual applies to measuring systems consisting of
the VEGAPULS series
60
radar sensor in two - wire and four -
wire versions
4
…
20
m A / HART :
VEGAPULS
61
,
62
,
63
,
65
,
66
,
67
,
68
V alid hardware and software versions :
S erial number of the
electronics
S ensor software
VEGAPULS
61
,
62
,
63
,
65
,
66
>
13978716
from rev .
3
.
22
VEGAPULS
61
,
62
,
63
with increased sensitiv
-
ity
>
14165303
from rev .
3
.
25
VEGAPULS
67
,
68
>
14165303
from rev .
3
.
25
T he measuring system can be used for level measurement of
liquids and solids which meet the speci fi c requirements of the
safety technology .
T his is possible up to SIL
2
in a single channel architecture
(
1
oo
1
D ), and up to SIL
3
in a multiple channel , diverse
redundant architecture .
T he use of the measuring system in a multiple channel ,
homogeneous redundant architecture is excluded .
T he SIL declaration of conformity can be downloaded from our
homepage in the I nternet .
F urther abbreviations and terms are stated in IEC
61508
-
4
.
SIL S
afety
I
ntegrity
L
evel
HFT H
ardware
F
ault
T
olerance
SFF S afe F ailure F raction
PFD
avg
average P robability of dangerous F ailure on D emand
PFH P robability of a dangerous F ailure per H our
FMEDA F ailure M ode , E ff ects and D iagnostics A nalysis
λ
sd
R ate for safe detected failure
λ
su
R ate for safe undetected failure
S cope
A rea of application
SIL conformity
A bbreviations , terms
VEGAPULS series
60
-
4
…
20
m A / HART
3
F unctional safety
31338
-
EN
-
070510