cv formula

A Little About Valves

What is Cv ? If you are a mechanic, you would probably say that it is the joints that are on a front wheel drive vehicle, however if you work in the field of process automation you might know that it pertains to control valves. Cv is the capacity of a control valve, or the […]

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ISA99 issues security draft for committee ballot

ISA99, Security for Industrial Automation and Control Systems, has issued a draft standard for committee ballot. ISA-62443.03.03 (99.03.03): Security for Industrial Automation and Control Systems: System Security Requirements and Security Assurance Levels, prescribes the system security requirements related to seven foundational requirements defined in ISA-99.01.01-2007 and assigns system security assurance levels to the system under […]

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leo-panel-for-insights

Getting the Most out of an ISA Student Membership

This is an excerpt from an ISA Insights article, “One surprising way to get the most out of ISA student membership” by Leo Staples, 2011 ISA President./box] How can students expand their technical bases and pick up the interpersonal skills hiring employers want? ISA student membership offers many opportunities for professional enhancement. Here are a […]

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ISA12 Members Maintain a High Activity Level at October Meetings

More than forty ISA12 (Electrical Equipment for Hazardous Locations) Members will gather in Cape Cod, Massachusetts October 3-7 to cover topics such as intrinsic safety, gas detectors, instrument purging, and fiber optics.  ISA12 covers the work of 40 standards, including 25 adoptions of IEC standards. During the week, the group will be working on submission […]

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Michael Lopresti

Young Innovators: Internship Opportunities Lead to Automation Future

InTech magazine has launched a new column called “Young Innovators.” The column will focus on “talking shop with the next generation.” The inaugural contribution comes from Michael Lopresti. Lopresti is a senior Industrial Engineering student and collegiate swimmer at the University of Missouri, dually enrolled in the Crosby MBA program. Here is an excerpt from […]

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Estimated Standard Deviation

Because an exact number for standard deviation could only be obtained by taking an infinite number of measurements, the below formula calculates the estimated standard deviation. Let’s take a set of measurements from a temperature transmitter with a range of 0-100 deg, Celsius. IDEAL VALUES     AS FOUND VALUES 0 1 10 12 20 21 30 […]

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Omer Bin Abdul Aziz

Ice Cream Castles in the Land of Automation

On a flight back home the other day, my plane passed above a thick band of monsoon clouds. With the worldly worries left thousands of feet down, I indulged myself in views out of my window seat.   I was enjoying a warm cup of tea inside the comfort of an air conditioned cabin, while the freezing temperature outside […]

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PFDavg for 1oo2 voting devices with common cause

Viewpoint on ISA TR84.0.02 Simplified Methods and Fault Tree Analysis

Abstract: ANSI/ISA-S84.01-1996 and IEC 61508 require the establishment of a safety integrity level for any safety instrumented system or safety related system used to mitigate risk. Each stage of design, operation, maintenance, and testing is judged against this safety integrity level. Quantitative techniques can be used to verify whether the safety integrity level is met. […]

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Honors and Awards

ISA Honors Outstanding Achievements

ISA is proud to recognize individuals who have made outstanding contributions to the Society and to the automation community. The distinguished grade of Fellow is conveyed by ISA to qualified senior members who have made exceptional engineering or scientific contributions to the field of automation. In addition, deserving and qualified individuals, both members and non-members, […]

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