Specifies 'probability of failure on demand'
February 1st 2008 ABB's new generation of HART
transmitters, the TTH300 and the
TTF300, feature SIL2 certification
from TUV. Units are suitable for a
range of chemical processing and
oil and gas applications.
The TTH300 specifies a
'probability of failure on demand'
of 0.01 to 0.001. This has been
achieved through the use of
redundancy and is particularly
useful on a safety critical
application. It also allows
replacement of the failed sensor
at the most cost-effective time. More articles from ABB Limited: | 
