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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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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,...
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 in Process Automation?What Is a Bypass in Process Automation?What Is Override Control in Process Automation?Inhibit vs Bypass in DCS, PLC and SISHow Inhibit and Bypass Work in Control LogicInhibit and...
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Instrumentation Calculators

Collection of Instrumentation Signal Conversion Calculators

Instrumentation Signal Conversion CalculatorsPV to 4-20mA scaling calculator4-20mA to PV scaling calculatorCalculator for 3-15...
Instrumentation Tools

Fluid Velocity Excel Calculator for Instrumentation Design Engineers

The "Fluid Velocity Calculation Excel Tool in Pipeline" is designed for use in instrumentation...
Checklist

Instrumentation Cable and Wiring Inspection Procedure: Essential  checklist for Project Engineers

Table of ContentsPlanning Phase Documentation ReviewTools and Team CoordinationSafety MeasuresPre-Installation InspectionInstallation InspectionPost-Installation InspectionDocumentation and...
Instrumentation Calculators

Pounds per Square Inch (psi) to Inch of Mercury (inHg) Pressure Unit Conversion Calculator

This calculator allows you to convert pressure values from Pounds per Square Inch (psi)...
Flow Measurement

Why Turndown Ratio is Important when Selecting a Flow Meter ?

Table of ContentsWhat is Turndown Ratio?What is the formula for turndown ratio?Why is Turndown...
Instrumentation Calculators

Inch of Water (inH2O) to Standard Atmosphere (atm) Pressure Unit Conversion Calculator

This calculator provides a simple way to convert pressure values from Inch of Water...
Instrumentation Questions

Advanced Process Control Challenge: 25 Essential APC Questions

Welcome to the Advanced Process Control (APC) Quiz, a comprehensive test designed to assess...
Instrumentation Calculators

Pascal (Pa) to Millimeter of Water Column (mmWC) Pressure Unit Conversion Calculator

This calculator enables quick and accurate conversion of pressure values from Pascal (Pa) to...
Instrumentation Calculators

mmH2O to Pa Calculator

millimeters of water column (mmHâ‚‚O or mmWC) to Pascals (Pa) using the conventional conversion...
Control Valve

Why You Should Use Control Valve Positioners?

Table of ContentsBasics of Control Valve PositionersPurpose of a Positioner in a Control ValveHow...
Instrumentation Calculators

Inch of Water (inH?O) to Pascal (Pa) Pressure Unit Conversion Calculator

This calculator enables you to quickly convert pressure values from Inches of Water (inH?O)...
Instrumentation Calculators

Torr to Millimeter of Mercury (mmHg) Pressure Unit Conversion Calculator

This calculator enables you to easily convert pressure values from Torr to Millimeter of...
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Latest articles

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...
Procedures

Galvanic Isolator Troubleshooting Procedure in an Analog Input Loop

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