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Safety Instrumented Functions and Systems

Textbook

A Safety Instrumented Function, or SIF, is one or more components…

Boiler Water Level Control System Example

Textbook

Steam boilers are very common in industry, principally because steam…

Elementary Thermodynamics

Textbook

Thermodynamics is the study of heat, temperature, and their related…

Controller Output Current Loops

Textbook

The simplest form of 4-20 mA current loop is the type used to…

Fluid Power Systems

Textbook

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

Instruction List (IL) Programming

Textbook

(Will be addressed in future versions of this book)

Proper Care and Feeding of Pneumatic Instruments

Textbook

Perhaps the most important rule to obey when using pneumatic…

Electronic Structure

Textbook

Earlier in this chapter you were shown a model of a nitrogen atom with…

Common Educational Fallacies

Textbook

When I began teaching full-time in 1998, most of what I thought I…

Industrial Instrumentation Summary for Teachers

Textbook

To summarize some of the key points and concepts for teaching: Do not…

Practical Topic Coverage

Textbook

Nearly every technical course teaches and tests students on…

Analog Electronic PID Controllers

Textbook

Although analog electronic process controllers are considered a newer…

Basic Feedback Control Principles

Textbook

Before we begin our discussion on process control, we must define a…

Error Corrections

Textbook

Abdelaziz, Ahmed (June 2014) Identified numerous typographical errors…

The Concept of Integration

Textbook

Suppose we wished to measure the consumption of propane over time for…

Active Reading and Outlining Documentation

Textbook

Learning from reading printed text is a kind of problem-solving…

Electrical Resistance and Ohm’s Law

Textbook

To review, voltage is the measure of potential energy available to…

Ultrasonic (Sound) Echo Level Measurement

Textbook

A completely different way of measuring liquid level in vessels is to…

Practical Measures of Reliability

Textbook

In reliability engineering, it is important to be able to quantity the…

Cascade Control

Textbook

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

FOUNDATION Fieldbus Design Philosophy

Textbook

To understand just how different FOUNDATION Fieldbus is from other…

Introduction to Calculus

Textbook

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

Transmitter Damping Adjustments

Textbook

The vast majority of modern process transmitters (both analog and…

Vibration Physics

Textbook

One very convenient feature of waves is that their properties are…

FOUNDATION Fieldbus Function Blocks

Textbook

Data-processing modules within FF systems are known as function…

Practical Measures of Reliability

Textbook

In reliability engineering, it is important to be able to quantity the…

Control Valve Characterization

Textbook

Control valves are supposed to deliver reliable, repeatable control of…

Instrument Turndown (Rangedown)

Textbook

An important performance parameter for transmitter instruments is…

Pneumatic Actuator Response

Textbook

A limitation inherent to pneumatic valve actuators is the amount of…

What is Internet Protocol (IP)?

Textbook

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

Circuit Failure Analysis

Textbook

Perhaps the most valuable skill an instrument technician can possess…

Analog Signal Conditioning and Referencing

Textbook

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

4-wire (“self-powered”) Transmitter Current Loops

Textbook

DC electric current signals may also be used to communicate process…

Periodic Table of the Elements

Textbook

All substances are comprised of various elements in various…

Analyzer Sample Systems

Textbook

Some analyzers measure the composition of a process stream by directly…

Pneumatic PID Controllers

Textbook

A pneumatic controller receives a process variable (PV) signal as a…

The Basics of Control Relays

Textbook

An electromechanical relay is an electrical switch actuated by an…

Introduction to Optical Analysis

Textbook

Light is known to interact with matter in very specific ways, which…

Differential (87) Current Protection

Textbook

One of the fundamental laws of electric circuits is Kirchhoff’s…

Control Valve Sizing

Textbook

When control valves operate between fully open and fully shut, they…