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Safety Integrity Level


Save 25% with a team discount when you register three or more attendees under one group registration and pay online (with one credit card).  Team discount cannot be combined with any other discounts or promotions.

This course focuses on the principles involved in the design of safety instrumented systems (SIS) that conform to the requirements of ANSI/ISA-61511-2018. (IEC 61511 Mod). In this intensive 2-day course, we will teach you how to evaluate the need for a safety instrumented function (SIF), evaluate potential system architectures, and analyze the system to determine its predicted performance, from both a risk reduction and reliability standpoint.

Combine this course with Layer of Protection Analysis and save!


  • Those who will be involved in the design, evaluation, operation and maintenance of safety instrumented systems
what will i learn in this course?
  • Learn how to design, specify and evaluate performance of safety instrumented functions within a safety instrumented system
  • Learn the importance of good maintenance procedures for the integrity of your systems
  • Gain an understanding of the regulatory requirements for safety instrumented systems
  • 1.2 CEUs, 1.2 COCs, 2.0 CMs, ABIH approval #10-242

Dates & Locations

Start/End Dates Location Information Register
22 May - 23 May 2019 ABS Group | Spring, TX
Location/Hotel Information
13 Nov - 14 Nov 2019 ABS Group | Spring, TX
Location/Hotel Information


Day 1: 8:00 a.m. to 5:00 p.m.
  • Introduction
    • OSHA and EPA regulations
    • CCPS guideline documents
    • ANSI/ISA-84.00.01-2004 (IEC 61511 Mod) life cycle
  • Developing the System Requirements
    • Layers of protection and LOPA
    • Inherently safer design
  • Safe Instrumented Function (SIF) Performance Calculations
    • Probability of failure on demand (PFD)
    • Spurious trip rate
  • ANSI/ISA-84.00.01-2004 (IEC 61511 Mod) Overview
    • Safety integrity levels (SIL)
    • Hardware fault tolerance of SIF architectures
    • Proven in use and certified devices and logic solvers
    • Safety requirements specification (SRS)
  • Workshop 1: High Level SIF design for tank overfill scenario
  • Introduction to Devices and Failures
    • Device failure modes
    • Common cause failure
    • Diagnostics
Day 2: 8:00 a.m. to 4:00 p.m.
  • Design Concerns
    • Alarm problem
    • Human factors (man/machine interface)
    • Plant production environment
  • Workshop 2: High Level SIF design for tank overfill scenario revisited
  • Installation, Commissioning and Validation
    • Factory acceptance test (FAT)
    • Site acceptance test (SAT)
  • Operational and Mechanical Integrity
    • Proof tests
    • Compensating measures
    • Bypass management
    • Managing changes
    • Access security
    • Operating with detected faults
  • Workshop 3: SIF design for isostripper addition scenarios
  • Implementing Your Own Program
  • Course Summary and Wrap-up


Mr. Scott Sandler - Senior Process Risk Consultant, ABS Consulting

John Farquharson - Senior Risk/Reliability Engineer, ABS Consulting

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