February 19, 2019 CE – Safety Instrumented Systems

Continuing Education – Evening Lecture
Final Elements in Safety Instrumented Systems

Presenter: Chris O’Brien
Partner and Executive Vice President
Exida Consulting LLC

Tuesday, February 19, 2019
5:15pm-5:30pm – Networking
5:30pm-6:30pm – Dinner & Presentation
6:30pm-6:45pm – Q&A Session & Closing Remarks

PDH Credit: 1 credit

Ashford Boardroom
KBR Inc.
242 Chapman Road
Newark, DE 19702

$30 Members
$35 Non-members & Guests
$15 Students
$15 KBR Employees
$15 WEBEX option

Dinner will be provided with registration for live attendance. Webex information will be provided one day in advance.


Most safety functions include some mechanical components. These components can range from single devices such as pressure relief valves to more complicated subsystems such as hydraulic power units, and in some cases the entire safety function is accomplished through mechanical devices. Understanding the analysis and modeling techniques for mechanical devices is a prerequisite to designing and maintaining effective safety functions. The proper specification, design and integration of final elements is necessary to ensure a SIL capable system is deployed. Actual performance of integrated final assemblies reveals that too many are not performing reliably throughout their mission time. Failure causes can be grouped into several key categories including; specification, design, and maintenance. These failures modes are evidence that the current processes need to be enhanced. This talk will review underlying issues with current systems and provide recommendations for improving design and maintenance activities.


Chris O’Brien is a Partner and Executive Vice President with Exida Consulting LLC. He has over 30 years of experience in the design, manufacturing, and marketing of automation, reserve power systems, and safety related equipment. He focuses on supporting new and existing customers with their implementation of the functional safety, alarm management, and cybersecurity standards.

He works extensively with clients implementing the IEC 61508, IEC 61511, IEC 62061, ISO 13849, and ISO 26262 functional safety standards. Additionally he provides system level analysis and review, turbomachinery assessment as well as reliability analysis for mechanical devices.

He was formerly Vice President of the Power Systems Business Unit of C&D Technologies, a business that specialized in the design and implementation of high reliability back up power systems. Prior to that, he was with Moore Products/Siemens Energy and Automation where he held several positions including General Manager of the Instrumentation Division.

Chris is the author of multiple papers, articles, and the book Final Elements and the IEC 61508 and IEC 61511 Functional Safety Standards. He has been awarded 5 patents, including a patent of the industry’s first safety rated pressure transmitter. He has a Bachelor of Mechanical Engineering from Villanova University and is a Certified Functional Safety Expert.


Please register no later than Monday, February 18, 2019 at 5:00 PM. Cancellation requests received by the registration deadline will be fully refunded.

Should you have any further questions, please do not hesitate to reach out to Cynthia Tarun at cbtarun@gmail.com 832-341-4960 (Mobile).