10 Truths of Safety Instrumented Systems


10 Truths of Safety
Instrumented Systems



May 30, 2007

Selection and design of safety systems is not trivial, and it never has been.

Operating companies in the process industries must face compliance with new safety standards such as IEC61508 and IEC61511, while implementing safeguards that provide asset protection, all without disrupting asset utilization or compromising production targets. What are the fundamental selection criteria for safety and critical control equipment? What key principles must be clarified in order to ensure successful selection and implementation of the system?

By learning the 10 truths of safety instrumented systems (SISs), you can improve your ability to engineer a system that complies with IEC and ANSI/ISA standards, increases uptime, and ensures optimal asset utilization.

Truths 1-3 are highlighted below. Click on the underlined topics for more information. Control Engineering will send you Truths 4-6 in July, and Truths 7-10 in September. Or, view all 10 Truths to ensure the success of your safety systems today.

Truth 1
SIL is a measure of safety, but has no impact on plant uptime .
SIL rating is a measure of the risk reduction capability and probability of failure-on-demand. It measures only the 'Fail Safe' nature of the device, and should not be the primary or sole measurement considered when selecting a safety system.

Truth 2
Quality of an SIS has a direct impact on plant performance .
Quality isn't always implemented the same way by every company. Quality Assurance procedures differ between vendors, regardless of product compliance with safety standards and certifications. Nevertheless, a vendor must make sure that their SIS performs to the intended specification. Receive a FREE DVD “An Inside look at Triconex processes.”

Truth 3
Many companies will sell you a safety system, but few are able to address your specific needs . Operating companies in the process industries that are pursuing regulatory compliance represent tremendous potential for any manufacturer that offers some form of process control technology or automation. Many such manufacturers are scrambling to ensure their products offer some level of compliance for use in safety applications. Unfortunately, while most of these 'new' products offer solutions for the fail safe side, only a few of them can address the need for safety and process uptime simultaneously.

Sponsored by:
Invensys Triconex www.triconex.com

Triconex 15345 Barranca Parkway Irvine California

Unauthorized use, duplication or distribution is strictly prohibited.
Invensys Legal Policy

Hidden Costs and Side Effects Associated with Safety
Systems Embedded with Control Systems
Attend Webcast or Download Presentation - June 5th 2007 (PDT)

Return to top

No comments
The Engineers' Choice Awards highlight some of the best new control, instrumentation and automation products as chosen by...
The System Integrator Giants program lists the top 100 system integrators among companies listed in CFE Media's Global System Integrator Database.
The Engineering Leaders Under 40 program identifies and gives recognition to young engineers who...
This eGuide illustrates solutions, applications and benefits of machine vision systems.
Learn how to increase device reliability in harsh environments and decrease unplanned system downtime.
This eGuide contains a series of articles and videos that considers theoretical and practical; immediate needs and a look into the future.
Salary and career survey: Benchmarks and advice; Designing controls; Remote data collection, historians; Control valve advances; Hannover Messe; Control Engineering International
System integration: Best practices and technologies to help; Virtualization virtues; Cyber security advice; Motor system efficiency, savings; Product exclusives; Road to Hannover
Collaborative robotics: How to improve safety, return on investment; Industrial Internet of Things, Industrie 4.0: World views; High-performance HMI, Information Integration: OPC and OMG
This article collection contains several articles on the Industrial Internet of Things (IIoT) and how it is transforming manufacturing.
PLCs, robots, and the quest for a single controller; how OEE is key to automation solutions.

Find and connect with the most suitable service provider for your unique application. Start searching the Global System Integrator Database Now!

Getting to the bottom of subsea repairs: Older pipelines need more attention, and operators need a repair strategy; OTC preview; Offshore production difficult - and crucial
Digital oilfields: Integrated HMI/SCADA systems enable smarter data acquisition; Real-world impact of simulation; Electric actuator technology prospers in production fields
Special report: U.S. natural gas; LNG transport technologies evolve to meet market demand; Understanding new methane regulations; Predictive maintenance for gas pipeline compressors
click me