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Areej

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Instrumentation Calculators

Advanced Instrument Air Compressor Interlock Logic and Control Quiz for Automation and Instrumentation Professionals

Instrument Air Compressor Interlock Logic Quiz Introduction Instrument air compressors are critical utility equipment controlled through PLC based sequencing, pressure instrumentation, permissives, alarms, trips and automatic standby selection. For automation and instrumentation professionals, understanding this logic is essential for DCS configuration, PLC programming, control panel...
Procedures

Galvanic Isolator Troubleshooting Procedure in an Analog Input Loop

Table of ContentsIntroduction to Galvanic Isolator TroubleshootingUnderstanding a Typical 4 to 20 mA Analog Input LoopCommon Symptoms of Galvanic Isolator ProblemsStep by Step Galvanic Isolator Troubleshooting ProcedureIndustrial Troubleshooting Case Study: Incorrect DCS Pressure ReadingSafety Precautions for Galvanic Isolator TroubleshootingGalvanic Isolator Selection and Maintenance Best...
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Interview Questions

PLC Interview Questions with Answers Part 1

In this session we are gonna discuss about some PLC Interview Questions with Answers and...
Electrical

Different types of time delay relays

Introduction Time delay devices are used for delaying the start-up, shutdown, recycling, or continuation of...
Electrical

Time delay relays

Introduction The time delay relays are special purpose relays or logic components that have some...
Instrumentation

Working of Dead Weight Tester

Description The dead weight tester apparatus consists of a chamber that is filled with oil-free...
Electrical

Basics of Motor Control

Introduction The energy distribution systems used in large commercial and industrial applications can be complex....
Electrical

Introduction to Induction Motor

Introduction One of the most common electric motors used in most applications is known as...
Instrumentation

What is an annunciator ?

INTRODUCTION The purpose of an alarm system (annunciator) is to bring attention to an abnormal...
Electrical

Introduction to Electrical Power Transformer

Definition of Transformer A transformer is a static machine used for transforming power from one circuit to...
Electrical

What is Microprocessor Based Relay?

Introduction Microprocessor relays provide many functions that were not available in electromechanical or solid-state designs....
Condition Monitoring

Introduction to Vibration measuring devices

Table of ContentsDefinitionUnits of VibrationSome effects of VibrationVibration-measuring devicesStroboscope MethodReed VibrometerSeismic-Mass TransducerVibration measuring instruments,...
Communication

Difference between VLAN and VPN

Introduction A local area network is defined as a computer network that is in the...
Instrumentation

Hazardous Areas and Zonal Classification

Introduction A HAZARDOUS area / environment may be potentially prone to: • An accident • The creation...
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Latest articles

Instrumentation Calculators

Advanced Instrument Air Compressor Interlock Logic and Control Quiz for Automation and Instrumentation Professionals

Instrument Air Compressor Interlock Logic Quiz Introduction Instrument air compressors are critical utility equipment controlled...
Procedures

Galvanic Isolator Troubleshooting Procedure in an Analog Input Loop

Table of ContentsIntroduction to Galvanic Isolator TroubleshootingUnderstanding a Typical 4 to 20 mA Analog...
Instrumentation Calculators

Pressure Transmitter Overrange Protection Calculator: Calculate Pressure Surge and Overpressure Risk

Table of ContentsWhat Is Pressure Transmitter Overrange Protection?Pressure Transmitter Overrange Protection Calculator ParametersHow to...
Instrumentation Questions

Advanced Instrument Logic Diagram Quiz for Process Control Systems in Process Industries

Instrument Logic Diagram Quiz Introduction An Instrument Logic Diagram displays the interaction of process conditions,...