Goble, W.
HP Automation Safety: Safety in software
It seems like everything I touch lately that has software in it is going bad. My desktop (PC) performance has deteriorated so badly that I decided to give it a lobotomy and reformat th..
HP Automation Safety: Valves in safety applications
As the safety lifecycle (SLC) methods of ISA84.01 and IEC61508 arebecoming more widespread, engineers who design safety instrumentedsystems (SISs) are starting to think more about the valves theyuse. ..
HP Automation Safety: A new year
Each year I spend a little time reflecting on the past year and planning strategic activities for the next. I think about my personal, business and professional goals. The year 2001 wa..
HP Automation Safety: Types of equipment certification
It is clear that field equipment manufacturers are focusing development and marketing energy on the safety instrumented systems (SIS) market. The number of new product certification announcements in t..
HP Automation Safety: Safety certification or proven in use?
In almost every safety system design class, the question is asked: "Do I need special equipment for safety instrumented systems?" Some available equipment has been certified by organizations like T..
HP Automation Safety: Complacency
We have the misfortune to be witness to what will probably be judged the worst man-made incident in recent history: the terrorist attack on the World Trade Center in New York. This incident occurred d..
HP Automation Safety: Partial valve stroke testing
Some of the new technology in safety instrumented systems includes smart valve positioners that run diagnostics. These devices automatically run a partial valve stroke test of the valves and actuators..
HP Automation Safety: Getting your functional safety program started
Several operating companies know about relatively new functional safety standards like ANSI/ISA 84.01 and IEC61508. Many are convinced that the economic benefits of safety life cycle implementation ar..
HP Automation Safety: A safety culture
I have come to the conclusion that it is hard to maintain a good safety record in the HPI. I have met many topnotch control engineers with good safety orientation. They seem to be doing..
HP Automation Safety: The trend toward SIL2
A new market study I worked on shows that the percentage of SIL3 safety instrumented functions (SIFs) is decreasing. SIFs are getting classified more and more as SIL1 and SIL2. Why is t..
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