Tri-Sen Blog

Harry Cheddie is the Director of Engineering for Cteris Consulting, located in Sarnia, Ontario, Canada. He is responsible for completing HAZOP and other safety studies for end users, teaching safety courses with an emphasis on IEC 61508 and IEC 61511, and Reliability, Availability & Maintainability (RAM) studies for Process Industries. Mr. Cheddie has over forty years of experience in the design, installation and maintenance of Process Control and Safety Instrumented Systems for the mining, petroleum, and petrochemical industries. Harry has a degree in Electrical Engineering and is a registered Professional Engineer in the Provinces of Alberta and Ontario, Canada. Harry is certified by the American Society for Quality as a Quality Engineer, and as a Reliability Engineer. He is the co-author of several textbooks published by ISA relating to the design of Safety Instrumented Systems