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Pressure Sensor Accessories

Textbook

Multiple accessories exist for pressure-sensing devices to function…

On/off Shut-off Valves

Textbook

An on/off valve is the fluid equivalent of an electrical switch: a…

Chemical Reactor Temperature Control Example

Textbook

Sometimes we encounter a diversity of instrument signal standards in…

Basics of Electrical Current

Textbook

Current is the name we give to the motion of electric charges from a…

Instrument and Process Equipment Symbols

Textbook

This section shows some of the many instrument symbols found in…

Overpressure Protection Devices

Textbook

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

Process Flow Diagrams

Textbook

To show a practical process example, let’s examine three…

Fluid Power Systems

Textbook

Given the ability of pressurized fluids to transmit force over long…

Pilot Valves and Pneumatic Amplifying Relays

Textbook

Self-balancing mechanisms consisting solely of a baffle/nozzle…

Split-range Control

Textbook

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

Valve Packing

Textbook

Regardless of valve type, all stem-actuated control valves require…

Self-balancing Pneumatic Instruments Principles

Textbook

A great many precision instruments use the principle of balance to…

Valve Failure Modes

Textbook

An important design parameter of a control valve is the position it…

Legal Code

Textbook

Creative Commons Attribution 4.0 International Public License By…

Common Control Valve Problems

Textbook

Valves can experience a number of problems, most of them either…

Teaching Technical Practices (Labwork)

Textbook

Labwork is an essential part of any science-based curriculum. Here,…

Valve Positioners

Textbook

The reason why a pneumatic control valve’s stem position…

Mathematical Problem-solving Techniques

Textbook

Some problem-solving techniques are unique to quantitative problems,…

Solenoid Valves

Textbook

A very common form of on/off valve used for pneumatic and hydraulic…

Introduction to Power System Automation

Textbook

Those familiar with industrial instrumentation will find much within…

Dampers and Louvres

Textbook

A damper (otherwise known as a louvre) is a multi-element flow control…

Symbolic Versus Numerical Calculus

Textbook

Calculus has a reputation for being difficult to learn, and with good…

What is Internet Protocol (IP)?

Textbook

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

Relay Circuits and Ladder Diagrams

Textbook

Electromechanical relays may be connected together to perform logic…

The International System of Units

Textbook

The very purpose of physics is to quantitatively describe and explain…

Rotating Magnetic Fields in Three-phase AC Induction Motors

Textbook

The following animation shows how the “rotating” magnetic…

Ratio Control

Textbook

Most people reading this book have likely had the experience of…

Analog Electronic PID Controllers

Textbook

Constructing PID control systems using discrete components is a…

Ions in Liquid Solutions

Textbook

Many liquid substances undergo a process whereby their constituent…

LRV and URV Settings, Digital Trim (Digital Transmitters)

Textbook

The advent of “smart” field instruments containing…

Electrical Pressure Elements

Textbook

Several different technologies exist for the conversion of fluid…

P, I, and D Responses Graphed

Textbook

Visualizing the actions of P, I, and D tuning parameters using graphs…

Insertion Flowmeters

Textbook

This section does not describe a particular type of flowmeter, but…

Force-balance Pressure Transmitters

Textbook

An important legacy technology for all kinds of continuous measurement…

Introduction to Calculus

Textbook

Few areas of mathematics are as powerfully useful in describing and…

Common Control Valve Problems

Textbook

Valves can experience a number of problems, most of them either…

Energy in Chemical Reactions

Textbook

A chemical reaction resulting in a net release of energy is called…

Assessing Student Learning

Textbook

As a general rule, high achievement only takes place in an atmosphere…

Thermistors and Resistance Temperature Detectors (RTDs)

Textbook

One of the simplest classes of temperature sensor is one where…

4-wire “Passive” Versus “Active” Output Transmitters

Textbook

Some self-powered (4-wire) analog electronic transmitters are designed…

Temperature Sensor Accessories

Textbook

One of the most important accessories for any temperature-sensing…