Vega VEGAPULS 68 - Principle of operation

DC
D
75 %
MTBF = MTTF + MTTR 0.45x10
6
h
VEGAPULS 61, 62, 63
E013 (no measured value available)
2 … 20 min
depending on the
application
E042/E043 (hardware error) <2 min
E036/E037 (no executable sensor software) <25 h
VEGAPULS 65, 66
E013 (no measured value available)
2 … 8 min
depending on the
application
E042/E043 (hardware error) <2 min
E036/E037 (no executable sensor software) <15 h
VEGAPULS 68 and VEGAPULS 61, 62, 63 with increased
sensitivity
E013 (no measured value available)
2 … 36 min
depending on the
application
E042/E043 (hardware error) <4 min
E036/E037 (no executable sensor software) <80 h
Single channel architecture 1oo1D
SIL SIL2
HFT 0
Sensor type Type B
Applies to overfill and dry run protection:
SFF 81 %
PFD
avg
T
Proof
= 1 year
T
Proof
= 5 years
<0.157x10
-2
<0.779x10
-2
Fault reaction time
Specific characteristics
VEGAPULS series 60 - 4 … 20 mA/HART 11
Functional safety
31338-EN-070510