One would think that simple math would be sufficient when dealing with safety systems?  For the most part this is true, as today, simplified formulas are widely accepted for modeling safety instrumented systems.  The calculations used to help predict the performance of a specific safety design are derived from statistical formulas that ...

Was not the response I was expecting to hear from an audience member during my presentation on new SIS (safety instrumented system) hardware development at this week’s ISA Expo.  He obviously was concerned over my suggestion that with new SIS technology there’s no degradation of safety when you have a partial shutdown and, ...

Earlier this week I listened in as some world recognized experts blathered on about the dangers of embedded safety systems.  These gentlemen represented one of the market leaders in process safety, and I was hoping to learn some new things about our industry.   Their discussion covered topics such as layers of protection, benefits ...

Working in and around process safety applications for most of my professional career (just under 20 years), I've enjoyed watching, discussing and participating on many technical challenges and advances regarding safety instrumented systems (SIS).  Now as we begin a new year, a new wave of technology is beginning to unfold that will ...