Archive | Process Measurement & Control

ISA Process Measurement & Control Division

What-Are-Indicators-of-Potential-Competency-Gaps-in-Industrial-Process-Operators

What Are Indicators of Potential Competency Gaps in Industrial Process Operators?

Developing and maintaining competent process operators is critical to business performance in the process industries. This blog post focuses on four signal classes that are leading and lagging indicators of competency gaps in process operators. The evidence of history is that if not addressed, these gaps increase the risk of non-optimal outcomes leading to reduced […]

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benefits-guided-wave-radar-technology

What Are the Benefits of Guided Wave Radar for Level Measurement in Process Industries?

Level is among the most frequently measured process variables in industrial plants. Level readings are used for local indication, process automation and visualization in control systems. Additionally, they are crucial for managing inventory and enforcing safety limits for overfill, leak detection or dry-run protection of pumps. Other applications range from automated ordering systems, to communicating […]

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Pressure Meter

How to Select the Optimal Temperature Sensor

In industrial environments, high process temperatures, pressures, and vibration make it necessary to have a robust temperature sensor. Fast response time, accuracy, and stability are also needed. While several types of temperature sensors are available, such as thermistors, infrared pyrometers, fiber optic, and others, the two most commonly used in the process measurement industry are […]

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industrial laser with sparks flying around

How to Use Plant-Wide Feedforward for More Flexible and Efficient Production

The pressure to reduce inventories, coupled with changing market demands and fluctuations in raw material and energy prices, requires a process plant to be able to respond quickly to maintain optimum operation. To most efficiently support changes in production rate or product grade, flows must change in unison throughout the plant. Feedback loops cannot do […]

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Factory control room

What are the Benefits of Identifying Deadtime and Ramp Rate

In Tip #70, we learned that deadtime was the key to loop performance. The Control Talk blog The ABCs of Controller Tuning describes how tuning settings can be reduced to a simple function of deadtime. The InTech article PID Tuning Rules and the article’s online appendices describe the fundamental relationships between deadtime, performance, and tuning. […]

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Chemical factory

How to Smooth the Transition Between Batch and Continuous Operations

Processes often include a mixture of batch and continuous operations. For liquid products made in a batch operation, most of the time the batch flow is off because the drain valve is closed during the batch. When done, the batch is drained quickly. This discontinuous batch flow cannot directly feed continuous operations downstream. For traditional […]

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