Are Permissives Safety Instrumented Functions?
I am often asked the question, “Are permissives safety instrumented functions?” I always respond [...]
Alarm IPL and Alarm Rationalization
Very frequently I run into situations where alarm rationalizations conflict with the results of [...]
Certification of Applications
For a significant amount of time now, end users of safety automation have been [...]
Should SIS Components by SIL Rated?
Certification of SIS components has received a level of respect among some practitioners of [...]
Fire and Gas Maginot Line
I’ve always found it hard to explain why a SIL 3 fire and gas [...]
Fire Detector Cone of Vision
Now that performance-based fire and gas system design is becoming more prevalent, knowledge of [...]
How are Dispersion Models and Fire and Gas Maps Different?
Dispersion modeling and fire and gas mapping are different activities, but are closely related. [...]
What is the Difference Between PHA and LOPA?
I was asked via e-mail what the difference between a PHA and a LOPA [...]
SIS Should Only Be Used as an IPL Once
Another mistake that I commonly run into when reviewing HAZOP/LOPA studies (i.e., studies where [...]
Predicting Reliablility from Components?
So you’re probably wondering why I’ve posted a picture of my son with his [...]
Things LOPA Can’t do… Part 1 of Many
As industry becomes more familiar with LOPA and more studies are performed, I frequently [...]
Enerfest to showcase Kenexis services at ISA Calgary
Kenexis Canada Partner Enerfest will be showcasing their service and product lines at the [...]
Kenexis opens new World Headquarters
New facility doubles the size of original office – conference room upgrades, training facility, [...]
When LOPA Attacks!
I have to say that I’m a little bit concerned over a large number [...]
Kenexis Selected to Present at 2011 ISA Safety & Security Symposium
Kenexis President Ed Marszal was selected to present on the topic of “Best Practices in [...]
Kenexis selected to provide ISA training in the UAE
Kenexis and ISA craft agreement to market and execute the EC-50/52/54 series ISA SIS Engineering [...]
SIS Bypass Activity Metrics
Recently a question was posted on the ISA regarding what metrics are available for [...]
Kenexis Selected to Present at 2011 AIChE Spring Conference
Kenexis Sr. Engineer Peter Hereña was selected to present two topics at the AIChE Spring [...]
Kenexis Selected to Present at 2011 NPRA Reliability and Maintenance Conference
Kenexis President Ed Marszal was chosen to present at the NPRA Reliability and Maintenance Conference [...]
Why Calculate Nuisance Trip Rate?
A lot of people have expended a lot of effort in calculating nuisance trip [...]
SIS Documentation
The publication of my Emerson Exchange presentation on the Emerson web site (see below) [...]
Kenexis to Support ISA Safety System Design Webinar
International Society of Automation (ISA) and Knovel are sponsoring a complimentary webinar on Wednesday, December [...]
Kenexis to Support ISA Safety System Design Webinar
International Society of Automation (ISA) and Knovel are sponsoring a complimentary webinar on Wednesday, December [...]
Kenexis to Support ISA Safety System Design Webinar
International Society of Automation (ISA) and Knovel are sponsoring a complimentary webinar on Wednesday, December [...]
Kenexis Featured at Upcoming IDC Safety Conferences
Kenexis Consulting Corporation today announced that President Ed Marszal has been selected as the keynote [...]