Displaying 1–25 of 668 results for Safety Instrumented Systems
A safety requirements specification often contains assumptions and gaps that can complicate development of a safety instrumented system. It’s important to assess how strong the bridge is for transposing detailed requirements into functional design.
As “Industry 4.0” gains ground among processors, the greater communication among devices embodied by the concept raises cyber-security challenges for plants’ safety instrumented systems (SISs). Here’s a high-spotting of some important issues.
A safety instrumented system usually includes a variety of low-demand safety instrumented functions (SIFs). Because these SIFs remain dormant for long periods, proof testing is an effective tool to detect and repair failures.
Safety instrumented systems (SISs) the instrumentation and controls intended for handling process manufacturing risks play a vital role in ensuring plant safety.
Understand Safety System Tradeoffs -- Each fieldbus approach has advantages and limitations.
Which approach do you prefer for safety instrumented systems?
Safety Instrumented Systems (SIS) are designed to monitor the process and control outputs to prevent or mitigate hazardous events. The design process strives for inherent safety, which is enhanced by applying multiple independent safety layers. Learn how to prevent accidents with prevention ...
Don't Fall for Safety System Myths -- Many misconceptions muddle maneuvers to manage risks.
Changes in technology have led to a variety of recent developments in process safety, including systems unlike traditional ones. A few do's and don'ts can help in selecting the most appropriate system.
The Mary Kay O'Connor Process Safety Center at Texas A&M University is offering a two-day course covering the verification of SIL and spurious trip rate for safety instrumented functions.
Many people working on safety-instrumented-system projects equate a functional safety audit with a functional safety assessment. However, they differ and, indeed, serve different purposes. This article clarifies the role of each.
A number of elements ranging from safety culture to functional safety management to safety instrumented systems are essential for achieving effective process safety. Maintaining it requires continuous and collective efforts.
Emerson 2-Wire Transmitters Approved For Safety Instrumented Systems
The updated IEC standard on functional safety states that leaving a safety instrumented system “as is” demands a determination that it meets requirements. Here’re pointers for assessing the acceptability of an existing SIS.
Poor management-of-change (MOC) procedures for industrial control systems have contributed to major catastrophes. The heightened emphasis on cybersecurity ratchets up the importance of effective MOC.
Security issues can impact functional safety. Simultaneously applying relevant standards for security and safety offers a viable way to align the two. This requires adopting and properly implementing three guiding principles.
Combined process control and safety system cuts costs and boosts efficiency.
Only experience can prove that safety systems will work when they have to
Exida Certifies Moore's Safety Trip Alarm -- STA is approved for Safety Instrumented Systems to IEC 61508:2010.
The stakes are just too high to give safety anything less than top priority, as the recent explosion at BPs Texas City, Texas, refinery unfortunately underscores. Despite that tragedy, the chemical industrys safety record remains exemplary.
This white paper addresses the controversy surrounding discussions about determining the equipment to use in safety instrumented systems (SIS) and the rules for maintaining them.
Do you really need SIL 3? Process plants rarely require that high a safety integrity level for instrumented protection
There are two main drivers for partial stroking of valves in safety systems: the desire to extend manual test intervals to as long as possible; and to reduce the amount of redundant hardware required for higher safety integrity levels. Like most things in life, it all boils down to one thing: ...
Combined process control and safety system cuts costs and boosts efficiency
Yokogawa Electric Corporation released ProSafe-RS R3.02.20, an enhanced version of the ProSafe-RS safety instrumented system (SIS).