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Recorded Webinars: How Effective are the Proof Tests of your Final Elements?
Most engineers who design and verify safety instrumented functions (SIFs) understand how hard it is to design a manual proof test with high effectiveness (also called high proof test coverage).
Proof test coverage is an important variable in Safety Instrumented System design that can impact risk reduction by an entire SIL level. This is shown in PFDavg calculations.
Everyone in functional safety will tell you that “safety” will vary from site to site, let alone manufacturer to manufacturer. We will start the webinar with the exida approach to unravelling these safety differences.
This webinar will explain proof test coverage, why this is an important safety parameter, and show that the real objective is to detect failures NOT detected by automatic diagnostics. The seminar will explain how proof test coverage is calculated and show several examples of proof test procedures along with the test coverage.
Recorded Webinars: Personnel Certification: Going for GOLD in the New Year
Have you ever wanted to become a leader? A mentor? Or just want to be able to understand and do more for your company and yourself? Have you ever shopped around and searched for the Personnel Certification that was right for you but got confused by all the acronyms from various organizations? This webinar will clear up any confusion. It will help guide those interested in becoming better personally in the field of Functional Safety, Alarm Management, or CyberSecurity.
News Item: New White Paper - Improving Reliability & Safety Performance of Solenoid Valves by Stroke Testing
Solenoid valves integrated into the design of emergency shutdown (ESD) valves used in industrial process systems, can tend to bind, i.e., to become stuck in one position, when not moved for long periods of time. This binding, also known as failure due to excessive stiction, has significant negative impacts on…
White Paper: Improving Reliability & Safety Performance of Solenoid Valves by Stroke Testing
Solenoid valves integrated into the design of emergency shutdown (ESD) valves used in industrial process systems, can tend to bind, i.e., to become stuck in one position, when not moved for long periods of time. This binding, also known as failure due to excessive stiction, has significant negative impacts on…
VEGA Grieshaber KG - PROTRAC 30 Series
IEC 61508 in the Safety Automation Equipment List
VEGA Grieshaber KG - VEGAMET 391
IEC 61508 in the Safety Automation Equipment List
VEGA Grieshaber KG - VEGAVIB / VEGAWAVE 60
IEC 61508 in the Safety Automation Equipment List
VEGA Grieshaber KG - VEGACAP 60
IEC 61508 in the Safety Automation Equipment List
Honeywell - SmartLine ST 700 Standard HART
IEC 61508 in the Safety Automation Equipment List
Weir Valves & Controls USA, Inc. - Atwood & Morrill FREE FLOW
IEC 61508 in the Safety Automation Equipment List
Blog Entry: High Demand Diagnostic Credit?
The IEC 61508 standard states that automatic diagnostics can only lower the dangerous undetected failure rate if those diagnostics execute 100 times faster than the expected demand rate. That requirement has always seemed excessive to many of us here at exida. As an accredited Certification Body we must enforce that…
Recorded Webinars: Industrial Automated Control System 〈IACS〉 Cybersecurity Program Management (IEC 62443)
The presence of threats, and the success of attacks has been felt by virtually every individual and organization around the world. Protecting assets must be a well-organized, wide ranging effort that involves everyone who has assets to protect. There are organizational conflicts to understand, policies to create, and specific security activities to coordinate. This webinar discusses key aspects of a Industrial Automated Control System (IACS) Cybersecurity Program, provides concrete recommendations for getting started, and references that provide additional insight.
Blog Entry: Reducing Project Lifecycle Cost with exSILentia®
The international functional safety standard IEC 61511 provides the safety lifecycle as a steadfast guideline to assess and mitigate risk for manufacturing processes including refineries, chemical, petrochemical, pulp and paper, and power plants. To achieve a functionally safe system, it is essential to follow each requirement in the standard. However,…
News Item: exida’s Dr. William Goble Presenting Paper at RAMS 2017
exida Founder Dr. William Goble will be presenting a paper at the 63rd Annual Reliability and Maintainability Symposium (RAMS) Conference in Orlando, FL on January 23rd, 2017. The paper is entitled “PROPERLY CREDITING DIAGNOSTICS IN SAFETY INSTRUMENTED FUNCTIONS FOR HIGH DEMAND PROCESSES”. This paper proposes that the 100X requirement used…
Recorded Webinars: Applying the Principles of the Functional Safety Lifecycle
Analyzing High Pressure in a Batch Chemical Reactor
The functional safety lifecycle provides a method to analyze, implement, and maintain a safety instrumented system, from project scope definition to decommission. Using a batch chemical reactor example, this webinar will walk through each step of the lifecycle. A high pressure deviation will be used as the starting point in the process hazard analysis. The resulting hazard scenario is subsequently analyzed in a layer of protection analysis. Requirements for a SIF are described in the safety requirements specification. After conceptual design is created SIL verification is performed, and the resulting SIF design is converted into an application program. Finally, life events including proof testing, maintenance activities and process demands are recording during operation.
Blog Entry: IF COMPUTERS RULED THE WORLD…
What if the best minds of the world got together to generate the optimum requirements specification for human co-habitation? And built it into one large decision matrix to run on the best super-computers? Decisions would be made solely on objective criteria; no mental arbitration, no skipping steps, no checking with…
Rosemount Tank Radar (an Emerson company) - 5408 Level Transmitter (4-20 mA HART)
IEC 61508 in the Safety Automation Equipment List
News Item: exida Exhibiting at Texas A&M - 72nd Instrumentation and Automation Symposium
exida will be exhibiting and presenting a workshop at this year's Texas A&M - 72nd Instrumentation and Automation Symposium in College Station, TX on January 24-26, 2017. exida's Senior Cybersecurity Engineer Dave Johnson will be presenting a workshop entitled ” Connecting Equipment and Zone/Conduit Security Levels” on Wednesday the 25th…
News Item: New White Paper - Reducing Project Lifecycle Cost with exSILentia®
The international functional safety standard IEC 61511 provides the safety lifecycle as a steadfast guideline to assess and mitigate risk for manufacturing processes including refineries, chemical, petrochemical, pulp and paper, and power plants. To achieve a functionally safe system, it is essential to follow each requirement in the standard. However,…
White Paper: Reducing Project Lifecycle Cost with exSILentia®
The international functional safety standard IEC 61511 provides the safety lifecycle as a steadfast guideline to assess and mitigate risk for manufacturing processes including refineries, chemical, petrochemical, pulp and paper, and power plants. To achieve a functionally safe system, it is essential to follow each requirement in the standard. However,…