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AutoQuiz: What is the Integral Action, Which is Part of a PID Algorithm, Often Called?

Today’s automation industry quiz question comes from the ISA Certified Control Systems Technician (CCST) program. Certified Control System Technicians calibrate, document, troubleshoot, and repair/replace instrumentation for systems that measure and control level, temperature, pressure, flow, and other process variables. This question is from the Level I study guide, Domain 4, start-up. Level I represents a […]

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Optimizing Multiphase Reactors with a Single Phase Product

For both batch and continuous reactors, completion control seeks to provide a complete conversion of all the reactants and consequently no excess accumulation of a reactant in a particular phase. If the reactants are in different phases and the product is a single phase, inventory control can be used for reaction completion control. The product […]

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Figure 1. Alarm management is not a static process, and it needs to be adjusted to match changes in the process and other new operational practices. Regular audits coupled with change management procedures help avoid undocumented modifications made by operators that can have potentially serious consequences.

Effective Alarm Management Planning Using ANSI/ISA-18.2

Although distributed control system (DCS) selection is one of the most important steps in the design of a new or upgraded process plant, some users now consider such a system a commodity and give its selection far less thought than it merits. The result is a generic control system that provides little more than the […]

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AutoQuiz: What Does a Symbol Depicting a Circle Inside a Box Represent?

Today’s automation industry quiz question comes from the ISA Certified Control Systems Technician (CCST) program. Certified Control System Technicians calibrate, document, troubleshoot, and repair/replace instrumentation for systems that measure and control level, temperature, pressure, flow, and other process variables. This question reflects those in the Level I study guide, Domain 2, loop checking. Level I […]

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Set Your Sights on ISA’s 2015 Division Symposia

Each year, ISA organizes technical division symposia and conference events at different locations throughout the U.S. These events are dynamic, and provide opportunities for members and leaders to interact with their peers in controlled settings where they can learn about the latest trends in their industries. Over the years, I have attended many different symposiums […]

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Getting the Most Out of Fluidized Bed Reactors

Fluidized bed reactors are extensively used in the petrochemical business. Often these are high volume plants with multiple lines of reactors. Even a small percentage improvement in yield and production rate can translate to millions of dollars a year in additional profit. Fortunately, the product rate can be inherently maximized by a straight forward temperature […]

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AutoQuiz: What is the Most Cost-Effective Way to Measure the Level of a Highly Corrosive Media?

Today’s automation industry quiz question comes from the ISA Certified Control Systems Technician (CCST) program. Certified Control System Technicians calibrate, document, troubleshoot, and repair/replace instrumentation for systems that measure and control level, temperature, pressure, flow, and other process variables. Which of the following measurement methods is most cost-effective for measuring the level of a highly […]

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How to Select the Right Industrial Network Ethernet Cable for Reliability and Performance

In 2013, the Ethernet cable celebrated its 40th birthday. The once simple cable has evolved into the foundation of modern Internet and global connectivity. Ethernet networking has gained momentum and popularity, penetrating lots of industrial applications, such as manufacturing, power utilities, oil and gas, and transportation. This includes energy-exhaustive machines, such as motor control centers, […]

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