Search
Blog Entry: I Don’t Want No D*** Diagnostics!
After a false trip incident, I heard a control engineer express his displeasure with the automatic diagnostics in a new safety rated transmitter. The transmitter diagnostics were annunciated by sending the analog current out of range. In this case, the current went to 3.6 milliamps. The problem was that the…
Blog Entry: The Safety Lifecycle as a Risk Control Loop
I have been doing a number of recent projects introducing the safety lifecycle to companies that are new to the field. As a result I have been playing with various ways to think about the overall safety lifecycle philosophy. As many of the more experienced readers are aware, the overall…
White Paper: Using Alarms as a Layer of Protection
Alarms and operator response to them are one of the first layers of protection in preventing a plant upset from escalating into a hazardous event. This paper discusses how to evaluate and maximize the risk reduction (or minimize the probability of failure on demand) of this layer when it is…
News Item: exida Featured as the Cover Story for the March/April Issue of InTech Magazine
Dr. William Goble, CFSE, exida Principal Partner authored the cover story featured in the March/April 2012 issue of InTech Magazine , titled “The FMEA Method.” A powerful reliability tool for data analysis that lasts for decades. A Failure Mode and Effects Analysis (FMEA) is a system reliability and safety review…
News Item: exida Featured in Applied Automation Magazine
Dr. William Goble, CFSE, exida Principal Partner authored an article featured in the February 2012 issue of Applied Automation Magazine , titled “Can You Depend on That Sensor?” An instrumentation device that is supposed to keep your process from erupting during an upset may sit there for years if there…
News Item: exida Featured in April Issue of Chemical Processing Magazine
Todd Stauffer, exida’s Director of Alarm Management co-authored an article for the April Issue of Chemical Processing Magazine titled “Making Some Alarming Moves.” Most process plants strive to enhance their productivity and extend their asset life. One of the easiest and most effective ways to achieve such improvements is to…
Blog Entry: Too Good to be True
A.K.A You’re About to Severely Under-Design your SIF and Put your People at Risk. Twice this week alone, and much more often than I like to remember, I’ve had safety system designers blindly follow certificates that contain data that simply cannot be true. They get a certificate from an equipment…
News Item: EXIDA CERTIFIES MOORE INDUSTRIES STA SAFETY TRIP ALARM FOR FUNCTIONAL SAFETY
exida, an accredited global certification company, has certified Moore Industries’ STA logic solver for functional safety, ensuring that it meets the functional safety requirements for Safety Integrity Level (SIL) 3 capable per IEC 61508. “Moore Industries has a strong development process that meets the requirements of SIL 3 - IEC…
Rotex Automation - Type 52S
IEC 61508 in the Safety Automation Equipment List
Rotex Automation - Type 32P
IEC 61508 in the Safety Automation Equipment List
Rotex Automation - Type 32D
IEC 61508 in the Safety Automation Equipment List
Blog Entry: To Be an Alarm…Or Not to Be?
That is the question. When your alarm does not meet the definition as defined in the ISA-18.2 standard and/or the criteria established in your alarm philosophy document , it is not an alarm. By ISA-18.2 definition “an alarm is an audible and /or visible means of indicating to the operator…
Blog Entry: We’re Only Human
We’re only human. Most of the time, that is a good thing. But humans seem to accept more risk over time when nothing bad has happened. We lose our vigilance. We take more chances. A close call might only be remembered as an unusually rare anomaly instead of a call…
Valmet Flow Control Private Limited - N1 Series
IEC 61508 in the Safety Automation Equipment List
Valmet Flow Control Private Limited - RNP Series
IEC 61508 in the Safety Automation Equipment List
L&T Valves - Butterfly Valves
IEC 61508 in the Safety Automation Equipment List
L&T Valves - Ball Valves
IEC 61508 in the Safety Automation Equipment List
Flowserve - MXa
IEC 61508 in the Safety Automation Equipment List
Blog Entry: Do you have class?
Are alarm classes defined in your alarm philosophy document (APD) as required by the ISA-18.2 standard? The use of classes (classification) is a new alarm management concept for many. If your APD was created before June 2009, chances are alarm classes are not defined. Alarm classification is a method for…
News Item: Functional Safety - An IEC 61508 SIL 3 Compliant Development Process Book Available for the Kindle
exida’s best selling book Functional Safety - An IEC 61508 SIL 3 Compliant Development Process is now available for the Kindle. The intent of this book is to provide the reader with an example development process for safety application products that meets all of the requirements for Safety Integrity Level…
Page 133 of 146 pages. ‹ First < 131 132 133 134 135 > Last ›