exida Recorded Webinars

Safety Alarms: At the Intersection of Alarm Management and Functional Safety

Recording Date: March 2018

“Safety Alarms” (aka Safety Related Alarms) are commonly used as safeguards or independent protection layers to prevent the escalation of hazardous scenarios. Despite this simple purpose, there is a wide range in the interpretation of what a safety alarm is, its requirements and how it should be managed. Some schools of thought advocate that safety alarms have a risk reduction > 10 and must be implemented in a safety instrumented system (SIS) that is compliant with IEC 61511. Others would say that all alarms implemented in an SIS are safety alarms. Still others would say that safety alarms can be implemented in a BPCS, and they may be assigned a risk reduction factor ≤ 10.

This webinar will highlight the current “body of knowledge” contained in ISA-18.2, EEMUA 191, UK HSE’s OG47, IEC 61511, and ISA-84. It will also discuss where industry is heading in terms of new guidance, interpretations, and requirements. Organizations such as the UK HSE, NAMUR, and ISA are updating existing guidelines or developing new ones. ISA is developing a new standard on Safety Controls, Alarms and Interlocks (ISA-84-91.03).

This webinar will discuss how to identify what is a safety alarm (and what this means to the end user). It will also discuss how risk reduction, safety integrity level, identification as a safeguard or independent protection layer, and use as a mitigation or prevention barrier, impacts requirements.

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About the Presenter:

Todd Stauffer

Todd Stauffer Todd Stauffer, PE, is responsible for exida’s alarm management products and services (training, consulting, SILAlarm™ rationalization software). He is an editor and voting member of the ISA-18.2 standards committee on alarm management and currently is the co-chair of ISA-18.2’s Working Group 3 (Basic Alarm Design). He is an instructor for ISA’s training class “Introduction to the Management of Alarm Systems”. Todd is also exida’s representative on the EEMUA 191 committee. Todd has experience leading alarm philosophy development workshops for clients and performing alarm philosophy gap analyses. He has published and presented numerous papers on alarm management. Recent works include “Implementing an Effective Alarm Management Plan” and “Benchmarking the Use of Alarms as Safeguards and IPLs”. His article “Don’t be Alarmed: Avoid Unplanned downtime from alarm overload“ was selected as Intech magazine’s best article of the year in 2007.