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Thermocouple Types, Junctions, Connector and Tip Styles

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RTDs are completely passive sensing elements, requiring the…

Introduction to Power System Automation

Textbook

Those familiar with industrial instrumentation will find much within…

Legal Code

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Creative Commons Attribution 4.0 International Public License By…

Circuit Breakers and Disconnects

Textbook

Disconnect Switches Disconnects are switches designed to isolate…

The HART Digital/Analog Hybrid Standard

Textbook

A technological advance introduced in the late 1980’s was HART,…

Weighfeeders

Textbook

A special type flowmeter suited for powdered or granular solids is the…

Examples of PLC Systems

Textbook

Programmable logic controllers are essentially nothing more than…

Cascade Control

Textbook

A simple control system drawn in block diagram form looks like this:…

Non-contact Temperature Sensors

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Virtually any mass above absolute zero temperature emits…

Process/Instrument Suitability

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Every flow-measuring instrument exploits a physical principle to…

A Comparison of PID Controller Tuning Techniques

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In this section I will show screenshots from a process loop simulation…

Split-range Control

Textbook

There are many process control applications in the industry where it…

PID Control Terminology

Textbook

PID control can be a confusing concept to understand. Here, a brief…

Overpressure Protection Devices

Textbook

Fluid pressure exerts force on any surface area it contacts, as…

Weight-based Level Measurement

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Weight-based level instruments sense process level in a vessel by…

Bi-metal Temperature Sensors

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Solids tend to expand when heated. The amount that a solid sample will…

Functional Diagrams: the Flow of Information within a Control System

Textbook

A unique form of technical diagram for describing the abstract…

Analog Signal Conditioning and Referencing

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Modern analog-to-digital converters are phenomenally accurate,…

What is Internet Protocol (IP)?

Textbook

I remember first learning about the world-wide Internet, and wondering…

Introduction to Inductors and Inductance

Textbook

Any conductor possesses a characteristic called inductance: the…

Colorimetric and Potentiometric pH Measurement

Textbook

pH is the measurement of the hydrogen ion activity in a liquid…