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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 Questions

Quiz on RTD and Thermocouple Selection for Instrumentation Design Engineers

Welcome to the RTD and Thermocouple Selection Quiz for instrumentation design engineers! Selecting the...
PLC

Understanding PLC Redundancy: Cold, Warm & Hot Redundancy

Table of ContentsDefinition: PLC RedundancyImportance of PLC RedundancyTypes of PLC RedundancyTypes of Redundancy in...
FAT Activities

Factory Acceptance Test (FAT) Procedure & Checklist for Marshalling Cabinets

Table of ContentsPurpose of the FAT Procedure for Marshalling CabinetScope of the FAT Procedure...
Temperature Measurement

Why Thermocouple Reference Junction Compensation(CJC) is Essential for Accurate Temperature Measurement ?

Table of ContentsDifferential Temperature MeasurementCold Junction Compensation - CJCTechniques for Reference Junction CompensationReference Diagram...
Instrumentation Calculators

Cable Tray Fill Percentage Calculator

Table of ContentsWhat is Cable Tray Fill Percentage?Definitions in Cable Tray Fill CalculationsImportance of...
Cybersecurity

Cybersecurity Standards for PLCs

Table of ContentsWhat is Cybersecurity in PLCs?PLC Cybersecurity and Regulatory RequirementsImportance of PLC Cybersecurity...
Installation Procedure

Step-by-Step Guide: Installing & Removing a DP Transmitter with a 5-Way Valve Manifold

Table of ContentsComponents of a 5-Way Valve ManifoldMain Functions of a 5-Way Valve ManifoldStep-by-Step...
Instrumentation Questions

Top 25 Essential MCQ for Gas Analyzer Instrument Technician Interview

Welcome to the Gas Analyzer Instrument Technician Quiz! Designed for professionals in process industries,...
FAT Activities

Factory Acceptance Test(FAT) Procedure for Differential Pressure(DP) Transmitter

Table of ContentsRequired Reference Documents DP Transmitter FATStep by Step Factory Acceptance Test (FAT)...
PLC

How to Calculate and Minimize Voltage Drop in PLC Wiring?

Table of ContentsWhat is Voltage Drop in PLC Wiring?Why is Voltage Drop Calculation Crucial...
Commissioning

Safe Commissioning & Removal of DP Transmitters with a 3-Way Valve Manifold

Table of Contents3 - Way Valve Manifold Essential Component for DP TransmittersBringing a DP...
Checklist

Control Room Workstation Maintenance Procedure with Checklist

Table of ContentsScopeSafety PrecautionsRisk AssessmentWork Permit RequirementsOperational ClearanceControl room Workstation Healthiness Check ProcedurePost-Maintenance ChecksDocumentation...
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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...
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...