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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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Interview Questions

Top 30 Refinery Instrumentation Interview Questions and Answers for Maintenance

Securing a position as an Instrumentation Maintenance position in a refinery requires a thorough...
How to

How to simulate 4-20ma signal with Loop Calibrator ?

Table of ContentsStep 1. Safety PrecautionsStep 2. Required Tools and EquipmentStep 3. Preparation for...
PLC

UP Counter in PLC Programming

Table of ContentsWhat is an UP Counter?Key Components of an UP CounterBasic Operation of...
Instrumentation Questions

PLC Timers Quiz

Welcome to the PLC Timer Quiz! This quiz is designed to test and enhance...
Instrumentation Calculators

4 to 20 mA Transmitter Output Process Value Calculator

Table of Contents4 to 20 mA Transmitter Output Process Value CalculatorFormula for 4 to...
Commissioning

Differential Pressure Transmitter Commissioning Checklist for Flow Measurement Applications

Table of ContentsSection :1 Preliminary InspectionSection :2 Preparation for CommissioningSection :3 Safety MeasuresSection :4...
Industrial Automation

Importance of Instrument Air in Process Plant

Table of ContentsWhat is Instrument Air?What is the Purpose of Instrument Air in a...
Instrumentation Questions

Quiz: Understanding LEL (Lower Explosive Limit) in Gas Detection

Discover the fundamentals of LEL (Lower Explosive Limit) gas detection through this comprehensive quiz....
Instrumentation Tools

Pressure Safety Relief Valve Basic Sizing Tool – Liquid Applications

Table of ContentsSafety Valve Sizing - Liquid ServiceFormula and Calculation for Pressure Safety Valve...
PLC

Retentive Timer On (RTO) in PLC Programming

Table of ContentsWhat is Retentive Timer On (RTO)?Components of an RTO TimerHow the RTO...
Industrial Automation

Steam Turbine Interlocks and Associated Protection Systems

Table of ContentsTurbine Trip Interlocks OverviewSteam Turbine Interlock Scenarios and Management  This document outlines critical...
PLC

Understanding Remote I/O in PLC Control Systems

Table of ContentsWhat is I/O in the PLC control System?What is Remote I/O?How Remote...
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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...