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Text version of the page
Classification of AUMA actuators
The following table illustrates the figures for selected
AUMA actuators
|
Figure |
AUMA 10-03-053 R006 V2R0 SA .2 AUMA NORM |
AUMA 10-03-053 R006 V2R0 SA .2 AUMA NORM with PVST |
|
Safety function |
OPEN/CLOSE |
OPEN/CLOSE with PVST |
|
safe |
367 FIT |
367 FIT |
|
Ko |
0 FIT |
162 FIT |
|
203 FIT |
41 FIT |
|
|
DCD |
0 % |
80 % |
|
MTBF |
201 a |
201 a |
|
SFF |
64 % |
92 % |
|
"^"[proof] ^ ys3r |
PFDAVG= 1.05 X 10 3 |
PFDAVG = 4.96x IO"4 |
|
T[Pr„„,] =2 vears |
PFDAVG= 1.92 X 10 3 |
PFDAVG= 6.55 X IO"4 |
|
T[Pr„„,] =5 vears |
PFDAVG = 4.53x10-3 |
PFDAVG= 1.13 X IO"3 |
|
SIL capability |
SIL 2 |
SIL 2 |
Please contact us for further SIL figures of other actua-
tor types.
Improvement of SIL capability
Regular function tests, for actuators the so-called partía
valve stroke tests (PVST), and/or the use of actuators in
redundant configuration (1oo2) can reduce the failure
probability of a safety-related system and thus improve the
SIL capability to SIL 3.
49