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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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Automation

Understanding RTU (Remote Terminal Unit): Key Components, Functions, and Applications in Industrial Automation

Table of ContentsRemote Terminal Unit (RTU) and Its ComponentsApplications of RTUsBenefits of RTUsDifferences Between...
Instrumentation Questions

PROFIBUS Quiz: Top 25 Advanced Interview MCQs with Answers for Automation Professionals

Welcome to the ultimate PROFIBUS communication quiz! This quiz is intended for professionals in...
Temperature Measurement

How to Calculate Temperature Transmitter 4-20mA Output Using Linear Equation and Percentage Method ?

Table of ContentsUnderstanding the Key ParametersStep 1: Calculate the Slope (m)Step 2: Find the...
Interview Questions

Ratio Control System MCQs in Industrial Instrumentation

Welcome to the "Ratio Control System in Process Instrumentation" quiz! Designed for process industry...
How to

How to Troubleshoot Industrial Temperature Transmitters ?

Table of ContentsProcedure for Troubleshooting Temperature Transmitters in PLC Analog Input LoopSafety PrecautionsRequired Tools...
Instrumentation Calculators

Coriolis Flow Meter Output Frequency Calculator

Table of ContentsDefinition of Coriolis Flow Meter Output FrequencyDefinition of Pulse Scaling Factor (PSF)Formula...
Automation

Top HMI Software in Industrial Automation

Table of ContentsWhat Defines Human Machine Interface (HMI) Technology?How Does HMI Relate to IoT...
Flow Measurement

Why Drain and Vent Holes are Essential for Efficient Orifice Plate Operation?

Table of ContentsWhat is Orifice Plate Drain Hole and Vent Hole?What is the Purpose...
Calibration

Step-by-Step Procedure to Calibrate an Absolute Pressure Transmitter

Table of ContentsWhat is an Absolute Pressure Transmitter?Applications of Absolute Pressure TransmittersPurpose and ScopeTools...
Instrumentation Tools

Instrument Air System Design Excel Tool for Design Engineer

Table of ContentsDownload Link for Instrument Air System Design Excel Tool for Design Engineer Overview...
Instrumentation Questions

Closed-Loop Control Valve Troubleshooting: HART, Fieldbus and Diagnostics Skills Quiz

Here is the spacer for Control Valve Troubleshooting Quiz! This newer quiz is meant...
Commissioning

How to Safely Zero a DP Transmitter with 3-Way Valve and 5-Way Valve Manifolds ?

Table of ContentsHow to Zero a Differential Pressure Transmitter using a 5 way-Valve Manifold...
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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...