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Areej

https://automationforum.co
Control Valve

Control Valve Passing Even When Fully Closed: Causes, Symptoms, Troubleshooting and Solutions

Table of ContentsUnderstanding Control Valve Passing and Why It HappensWhat Does It Mean When a Control Valve Is Passing?How a Control Valve Should Close Under Normal ConditionsCommon Symptoms of a Passing Control ValveMajor Causes of Control Valve PassingControl Valve Shutoff Performance by Valve TypeHow...
Instrumentation Calculators

Instrument Range Calculator | Calculate Span, Rangeability, Turndown Ratio & Calibration Range

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Electrical

What motor bearings do?

Introduction The main function of motor bearings is to reduce friction and wear on rotating...
Communication

What is an OPC or Open process control?

What is OPC? OPC means "Open process control" or "Open platform communications" It is a standard...
Electrical

Introduction to Alternating Current

Introduction AC stands for Alternating Current and is symbolised by “~”. This current alternates both...
Electrical

Difference between the Rotor and the Stator

Introduction The stator and rotor both are the parts of the electrical motor. The significant difference...
Control System

What is a PID control action?

TWhat is a controller and why is it required in a process system?What is...
Condition Monitoring

Theory of Vibration sensors

Introduction Sensors used to measure vibration come in three basic types: displacement, velocity, and acceleration....
Instrumentation

Advantages/disadvantages of Pneumatic & Hydraulic Actuators

Pneumatic Actuators A set of devices into with one or more pneumo engines, which are determined...
Electrical

Fuse and Types of Fuses

What is a Fuse: The fuse is an electronic device, which is used to protect...
Electrical

What is Marshalling Cabinet or Marshalling Panel?

What is the purpose of marshalling cabinets? Marshalling means grouping of I/O. The marshalling panel...
PLC

Guidelines for PLC wiring

Introduction The PLC – programmable logic controller – is an industrialised computer designed specifically for...
Flow Measurement

What is Laser Doppler anemometer

Introduction  The Doppler effect is a method to measure linear velocity. When a narrow laser...
Interview Questions

PLC Interview Questions with Answers Part 2

This session is the continuation of  PLC Interview Questions with Answers Part 1 This...
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Latest articles

Control Valve

Control Valve Passing Even When Fully Closed: Causes, Symptoms, Troubleshooting and Solutions

Table of ContentsUnderstanding Control Valve Passing and Why It HappensWhat Does It Mean When...
Instrumentation Calculators

Instrument Range Calculator | Calculate Span, Rangeability, Turndown Ratio & Calibration Range

<!-- Google Fonts (safe to keep as a inside a WordPress "Custom HTML"...
Communication

Profibus PA Communication Problems: Causes, Symptoms and Troubleshooting Guide

Table of ContentsOverview of Profibus PA Communication Challenges What is Profibus PA Communication?Definition of Profibus...
Engineering

FAT vs SAT vs SIT: Three Critical Tests That Determine Whether Your Plant Is Truly Ready for Startup

Table of ContentsIntroductionPurpose of Factory Acceptance TestingFactory Acceptance Test ObjectivesFactory Acceptance Test ObjectivesPLC FAT...