HomeAuthorsPosts by Sundareswaran Iyalunaidu

Sundareswaran Iyalunaidu

With over 24 years of dedicated experience, I am a seasoned professional specializing in the commissioning, maintenance, and installation of Electrical, Instrumentation and Control systems. My expertise extends across a spectrum of industries, including Power stations, Oil and Gas, Aluminium, Utilities, Steel and Continuous process industries. Tweet me @sundareshinfohe
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Instrumentation Calculators

Thermocouple Color Code and EMF Calculator for Instrumentation Engineers

Table of ContentsThermocouple Color Code and EMF Calculator for Instrumentation EngineersWhat Is a Thermocouple Color Code and EMF Calculator?Why Thermocouple Wire Color and Polarity MatterHow to Use the Thermocouple EMF CalculatorThermocouple EMF Calculation FormulaType K Thermocouple EMF Calculation ExampleHow to Interpret Thermocouple EMF Calculator...
Procedures

RTD Checking With a Multimeter: Three Tests, Resistance Calculation and Troubleshooting

Table of ContentsWhat Is an RTD and How Does It Work?Tools Required for RTD Testing and Safety PrecautionsThree Important Checks for RTD Testing With a MultimeterHow to Test an RTD With a Multimeter Step by StepPT100 Resistance Versus Temperature TableHow to Test Two Wire,...
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Temperature Measurement

Master Temperature Calibrators: Precision Tools for Accurate Temperature Instrument Calibration

Table of ContentsDry Block CalibratorsAdvantages of Dry Block Calibrators:Disadvantages of Dry Block Calibrators:Applications of...
PLC

Designing 2 out of 4 Voting Logic in Control Systems: A Step-by-Step PLC Ladder Diagram Tutorial with Video

Table of ContentsDefinition of Voting 2 out of  4 LogicInputs and Outputs of Voting...
Pressure Measurement

Rangeability vs. Turndown Ratio and their Implications for Pressure Transmitter Selection

Table of ContentsRangeability: Definition and CalculationTurndown Ratio: Definition and CalculationWhat is Rangeability?Why is Rangeability...
Interview Questions

Electrical and Instrumentation Project Engineer Interview Question and Answer Guide

Table of Contents1. What are inspection points for a cable tray installation?2. What are...
Analytical Instrumentation

Types of Oxygen Analyzers: Applications and Measurement Methods

Table of ContentsWhat is an Oxygen Analyzer?Stack Gas Oxygen AnalyzersInert Gas Oxygen AnalyzersApplications of...
Instrumentation Calculators

Flowrate to Differential Pressure (DP) Calculator

Flow Transmitter Differential Pressure Calculator For the purpose of calculating the differential pressure of the...
How to

Pressure Switch Troubleshooting and Maintenance in Industrial Process Areas

Table of ContentsSafety PrecautionTools Required for Pressure Switch TroubleshootingUnderstand the System and Type of...
Control Valve

Common Challenges and Solutions for Industrial Control Valve Actuators

Industrial control valve actuators are critical components in various processes across industries such as...
Control Valve

Relationship Between Cv and Kv in Control Valves

Table of ContentsFlow Coefficient DefinitionImportance and ApplicationVariability and StandardizationDefinition of CvDefinition of KvConversion FactorRelationship...
PLC

Designing 2 out of 3 Voting Logic in Control Systems: A Step-by-Step PLC Ladder Diagram Tutorial with Video

In this content, you'll discover how to implement 2 out of 3 voting logic...
Interview Questions

Why not use 0-20mA & 0-15psi instead of 4-20mA & 3-15psi?

Table of ContentsUnderstanding the 4-20mA Current Loop:Understanding the 3-15 psi Pressure SignalWhy use 4-20...
PLC

Common Causes of Programmable Logic Controller(PLC) Failure and Mitigation Strategies

Table of ContentsFactor No.1: Module FailureFactor No.2: Power Supply IssuesFactor No.3: Ground IntegrityFactor No.4:...
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Instrumentation Calculators

Thermocouple Color Code and EMF Calculator for Instrumentation Engineers

Table of ContentsThermocouple Color Code and EMF Calculator for Instrumentation EngineersWhat Is a Thermocouple...
Procedures

RTD Checking With a Multimeter: Three Tests, Resistance Calculation and Troubleshooting

Table of ContentsWhat Is an RTD and How Does It Work?Tools Required for RTD...
SIS/ESD

Inhibit vs Bypass in Process Plants: DCS, PLC and ESD/SIS Differences

Table of ContentsWhy Understanding Inhibit vs Bypass in Process Plants MattersWhat Is an Inhibit...
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...