Monday, August 26, 2019 at 8:00 AM AKDT
Thursday, August 29, 2019 at 5:00 PM AKDT

Add to Calendar 


aeSolutions Anchorage Office 
3800 Centerpoint Drive, Suite 620
Conference Center
Anchorage, AK 99503

Driving Directions 



Safety Instrumented Systems: A Life-Cycle Approach (ISA EC50) - Anchorage

CEU Credits: 3.2
Course Hours: 8:00 a.m. - 4:00 p.m.

Certification of Completion: A Certificate of Completion indicating the total number of CEUs earned will be provided upon successful completion of the course.

Course and Certificate Program: This course is required for the ISA/IEC 61511 SIS Fundamentals Specialist Certificate Program 
Your course registration includes your registration for the exam.

Cost:  $3,800  ($3,100 for current ISA members. Use code ISAMEMBER)


This course focuses on the engineering requirements for the specification, design, analysis, and justification of safety instrumented systems for the process industries. Students will learn how to determine safety integrity levels and evaluate whether proposed or existing systems meet the performance and documentation requirements defined in the ISA 84 (IEC61511) standard.

This course is required for the ISA84 Safety Instrumented Systems Certificate Programs. When you register for the course, the certificate exam is included with your registration.

Those who successfully complete this course and pass the exam receive the designation of ISA84 SIS Fundamentals Specialist.

You will be able to:

  • Differentiate between process control and safety control
  • Implement the ISA84 (IEC 61511) standard
  • Evaluate process risk levels
  • Select Safety Integrity Levels (SILs) for Safety Instrumented Functions (SIFs) using a variety of techniques
  • Analyze the performance of different logic system technologies
  • Analyze the performance of various sensor, logic, and final element configurations, as well as the impact of diagnostics, test intervals, common cause, system size, imperfect manual testing, and bypassing
  • Determine optimum system test intervals
  • Specify and select safety instrumented systems
  • Apply the documentation requirements for process safety management, regulations, and industry standards

You will cover:

  • Introduction: Accidents and Resulting Regulations | Lessons Learned From Past Accidents | Standards & Guidelines of Interest
  • Scope & Safety Life Cycle: Management Issues | Design Life Cycle |
  • Safety Layers: Independent Safety Layers | Separation of Control and Safety
  • Risk, Hazard Analysis, Safety Integrity Levels: Hazard Identification | Risk Assessment | Selecting Safety Integrity Levels | Layer of Protection Analysis
  • Failure Modes & Reliability Concepts: Safe vs. Dangerous | Failure Mode vs. Technology | Failure Rates | Modeling Techniques | Test Intervals | Fault Tolerance Requirements
  • System Technologies: Pneumatic | Relay | Microprocessor | Field Devices | Certification | Prior Use
  • System Design: Requirements Specification | General Design Issues (Environment, Interfaces, Bypasses, Resets, etc.)
  • Operations and Maintenance: Installation | Operation & Maintenance | Testing | Management of Change | Decommissioning

Classroom/Laboratory Exercises:

"The lab sessions were very helpful. I was very pleased with the course. More so than any other technical course I have been to. I feel that I really learned something."
- Shawn Coughlan
  • Calculate device failure rates
  • Model system performance for relay and software-based logic systems
  • Model the impact of different configurations, field devices, automatic diagnostics, manual test intervals, common cause, and imperfect manual testing and bypassing
  • Determine the SIL (safety integrity level) of a sample functions and design a system to meet the performance requirements
Instructor: Paul Gruhn,
2019 ISA President, PE, CFSE,and ISA Life Fellow 
Gruhn is a Global Functional Safety Consultant with aeSolutions, a process safety, cybersecurity and automation consulting firm. He serves as a Co-Chair and
long-time member of the ISA 84 standard committee (on safety instrumented systems), and continues to develop and teach ISA courses on safety systems. He also developed the first commercial safety system modeling program. Gruhn has written two ISA textbooks, numerous chapters in other books and dozens of published articles.



A hand-held/scientific calculator should be brought to class.

Textbook Included:

Safety Instrumented Systems: A Life-Cycle Approach cover img  

Safety Instrumented Systems: A Life Cycle Approach 
By Paul Gruhn, PE, CFSE and Simon Lucchini, CFSE, MIEAust CPEng