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
twitter
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...
spot_img

Keep exploring

PLC

Step-by-Step PLC Battery Replacement and Maintenance Procedure

Table of ContentsWhat is a PLC battery?Why does a PLC need a Battery?Types of...
Instrumentation Questions

Quiz: DP Type Flow Measurement Transmitter Troubleshooting

Welcome to the ultimate quiz on Differential Pressure (DP) Flow Measurement Transmitter Troubleshooting in...
Instrumentation Calculators

Engineering Units to PLC Raw Counts Conversion Calculator 

Table of ContentsPurpose and use of the Engineering Units to PLC Raw Counts CalculatorHow...
Control Valve

Why Measuring Control Valve Cv is Essential for Proper Valve Sizing ?

Table of ContentsWhat is Cv?Practical Applications of Cv MeasurementFrequently Asked Questions (FAQ) on Control...
Instrumentation Calculators

Essential Engineering Calculators for Process and Instrumentation Engineers

In process and instrumentation engineering, accuracy, efficiency, and precision are very important. Whether it’s...
Engineering

Cable Tray Size Calculation: Formula, Sizing, Fill and Worked Example

Table of ContentsHow Do You Calculate Cable Tray Size?Importance of Cable Tray Sizes and...
Instrumentation Questions

Test Your Expertise in Temperature Control Loop Troubleshooting: Top 25 MCQ

Temperature control loops are critical in maintaining consistent and precise process conditions in various...
Checklist

Checklist for Cable Glanding & Termination 

Table of ContentsSection 1. Safety MeasuresSection 2. Required DocumentationSection 3. Gland Specification CheckSection 4....
PLC

Understanding Watchdog Timers in PLCs

A Watchdog Timer (WDT) is a critical component of embedded systems, particularly Programmable Logic...
Industrial Automation

Why is a 250-Ohm Resistor Important for HART Communication?

Table of ContentsRole of HART Communication in Industrial AutomationEssential Purposes of the 250-Ohm Resistor...
Instrumentation Calculators

Pressure Unit Conversion Calculators 

Welcome to our comprehensive collection of Pressure Unit Conversion Calculators your one-stop solution for...
Instrumentation Calculators

How to Calculate Minimum Flow Rate for Flow Meters from Turndown Ratio?

Flow meters are essential parts of systems that need to monitor flow accurately. However,...
Load more

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...