Uncover hidden vulnerabilities in Safety Instrumented Systems and master lifecycle management strategies to prevent catastrophic failures and ensure true operational reliability.
Safety Instrumented Systems (SIS) are designed to reduce the likelihood and consequences of hazardous events, yet many organisations assume that once a system has been installed and commissioned, its safety performance is assured. In reality, the effectiveness of a Safety Instrumented Function (SIF) depends on continuous management throughout the safety lifecycle. Poor proof testing, alarm overload, bypass management failures, inadequate maintenance, and undocumented changes can significantly degrade safety performance over time without being immediately visible to operators or management.
While Safety Integrity Levels (SIL) and risk reduction targets are often established during project design, maintaining those performance requirements throughout operation presents a different set of engineering challenges. Understanding how operational practices, reliability data, human factors, and asset management decisions affect SIS performance is critical for ensuring that safety systems continue to provide the protection assumed during risk assessments.
This session examines the practical realities of Safety Instrumented System lifecycle management and explores the factors that commonly erode safety performance after commissioning. Participants will gain insight into proof testing, SIL verification, alarm management, performance monitoring, reliability considerations, and the operational practices required to sustain functional safety outcomes throughout the life of an asset.
Key Topics Discussed:
Controls & Functional Safety Engineer | Helping Industries Design Reliable Systems & Achieve Safety Compliance
Muhammad Junaid Atta is an Instrument and Control Systems Engineer specializing in Functional Safety across oil, gas, and petrochemical sectors. He has delivered key projects in Australia, New Zealand, and the Middle East, focusing on Safety Instrumented Systems, LOPA, and SIL verification. Junaid has worked with global engineering firms such as Beca, Worley, SGS ECL, and Farabi Petrochemicals, KBR, Fluor and JGC where he contributed to improving plant reliability, compliance, and operational safety. His approach combines technical precision with a deep understanding of IEC 61511 and ISA standards to deliver safe and efficient process automation solutions. Beyond his professional career, Junaid actively volunteers within the Pakistani and engineering communities in New Zealand. He worked as regional relationship manager and general secretary with Pakistan Association of New Zealand. He has contributed to events promoting professional networking, youth engagement, and cultural exchange knowledge sharing specially his video series “Pehla Qadam” very popular across social media with around 500K views where he focused on settlement of new migrants in New Zealand. His volunteer work reflects his commitment to empowering professionals, fostering collaboration, and strengthening cross-cultural ties within the engineering and wider community.
