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AutoQuiz: How Do You Measure Water Level in a Tank?

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. Click this link for information about the CCST program. This question is from the Level I […]

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How to Build an Industrial Calibration System Business Case

An investment into calibration equipment and systems must be financially justified, just like any other business investment. But does a cheaper cost of purchase always mean a higher return on investment? Not necessarily. When building a business case for calibration system investment, what may seem at the outset to be cheaper may not necessarily be […]

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AutoQuiz: How Do You Calculate the Resistance of Copper Wire?

Today’s automation industry quiz question comes from the ISA Certified Automation Professional certification program.  ISA’s internationally recognized CAP certification provides a non-biased, third-party, objective assessment and confirmation of an automation professional’s skills. The CAP exam is focused on direction, definition, design, development/application, deployment, documentation, and support of systems, software, and equipment used in control systems, […]

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The Case for Diverse Tank Gauge Measurement Technologies

Safe handling and storage of bulk petroleum products has challenged the oil industry for decades. Accidents in petroleum storage terminals and refineries have demonstrated all too clearly how it can go badly wrong. Investigations into the root causes of these accidents have also given us a range of standards and regulations to be followed. As […]

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Advance Your Career in March with Training from ISA

In March, ISA’s popular Technical Training Camp travels to Arizona for four consecutive weeks of intensive training classes with an emphasis on the practical application of knowledge and skills. This is an opportunity to expand your abilities and experience in automation engineering and safety. Also next month, join other automation professionals for ISA’s new Extreme […]

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AutoQuiz: What is the Standard Range for Pneumatically Transmitted Signals?

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. Click this link for information about the CCST program. This question comes from the Level I […]

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Multi-Objective Control of Nonlinear Boiler-Turbine Dynamics

Abstract: This paper investigates multi-objective controller design approaches for nonlinear boiler-turbine dynamics subject to actuator magnitude and rate constraints. System nonlinearity is handled by a suitable linear parameter varying system representation with drum pressure as the system varying parameter. Variation of the drum pressure is represented by suitable norm-bounded uncertainty and affine dependence on system matrices. […]

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Plant Historians Deliver Insight and Improve Operations

Plant historians became popular in process plants in the 1980s. More recently they are being used broadly throughout industry to improve operations, identify problems, and find opportunities for enhancement. An early forerunner of historians were electromechanical pen-and-paper chart recorders. They produced a graph of one or more measured values over a period of time for […]

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