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
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Instrumentation Calculators

Measurement Uncertainty Calculator: Calculate Combined and Expanded Uncertainty Using GUM

Measurement Uncertainty Calculator - GUM Method #muc-wrap, #muc-wrap * { box-sizing: border-box !important; } #muc-outer { background: #eef2f8 !important; background-image: linear-gradient(rgba(15,23,42,0.045) 1px, transparent 1px), linear-gradient(90deg, rgba(15,23,42,0.045)...
SIS/ESD

Shutdown Philosophy: Engineering Documentation for Process Safety and Emergency Shutdown Systems

Table of ContentsWhat is Shutdown Philosophy and Why is it Important? What Is a Shutdown Philosophy in Process Safety?Why Is Shutdown Philosophy Important in Engineering Projects?What Is the Shutdown Level Hierarchy?How Is a Shutdown Philosophy Developed?What Should a Shutdown Philosophy Document Include?Shutdown Philosophy and Cause...
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PLC

Logic Gates in PLC Programming: A Guide with Truth Tables and Ladder Logic Diagrams

Programmable Logic Controllers (PLCs) are crucial in industrial automation, controlling machinery and processes by...
Instrumentation Questions

Quiz on Distributed Control Systems(DCS)

Test your knowledge of Distributed Control Systems (DCS) with this comprehensive quiz. Covering essential...
Instrumentation Calculators

Transmitter Calibration Span, LRV and URV Value Calculator from Measured 4 to 20 mA

Table of ContentsHow to Use the CalculatorKey Concepts of this CalculationStep 1: Understand the...
How to

RTD Tolerance Calculation

Table of ContentsWhat is RTD Tolerance?RTD Standards and Accuracy ClassesRTD Tolerance Testing for IEC...
PLC

PLC Programming Example: Using Timers to Control Motors with a Single Switch

Table of ContentsPLC Programming Example on TimersLadder LogicIncorporating Turn-Off Timer and On-Delay TimerSimulation StepsSimulation...
Industrial Automation

Ingress Protection IP and NEMA Ratings: Selecting the Right Enclosure for Your Application

Table of ContentsWhat is Ingress Protection (IP)  Purpose Ingress Protection (IP)Structure of Ingress Protection (IP)...
Instrumentation Questions

PLC (Programmable Logic Controller) Knowledge Quiz

Welcome to the PLC (Programmable Logic Controller) Quiz! This quiz is designed to test...
Control Valve

Control Valve Leakage Testing, Types, and Calculation Standards

Table of ContentsClassification of Control Valve LeaksLeakage Tests & Calculations in a Control ValveTypical...
How to

Choosing Between Thermocouples and RTDs: A Practical Guide for Temperature Sensing

Table of ContentsBasics of Resistance Temperature Detectors (RTDs)Advantages and Disadvantages of Resistance Temperature Detectors...
Instrumentation Tools

Pressure Safety Valve Sizing Excel Tool for Gas Applications

Table of ContentsAPI 520 Relief Valve SizingCritical Flow Safety Valve SizingSizing Safety Valves for...
SIS/ESD

Understanding 2 out of 2 SOV: Working & Configuration

Table of ContentsUnderstanding the Need for RedundancyIntroducing 2 out of 2 SOV RedundancyConfiguration and...
Process Control

Wellhead Control Panel (WHCP): Working Principle, Components, Types, Design and FAQs

Table of ContentsWhat is a Well Head Control Panel (WHCP)?Principle of Well Head Control...
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Instrumentation Calculators

Measurement Uncertainty Calculator: Calculate Combined and Expanded Uncertainty Using GUM

Measurement Uncertainty Calculator - GUM Method #muc-wrap, #muc-wrap * { box-sizing: border-box !important;...
SIS/ESD

Shutdown Philosophy: Engineering Documentation for Process Safety and Emergency Shutdown Systems

Table of ContentsWhat is Shutdown Philosophy and Why is it Important? What Is a Shutdown...
Procedures

Hydraulic System Pressure Switch Troubleshooting: Step by Step Safe Procedure

Table of ContentsWhat Is a Hydraulic Pressure Switch and How Does It Work?Hydraulic Pressure...
Instrumentation Questions

Advanced PLC Interlock Troubleshooting Quiz for Process Industries | 25 Practical PLC Diagnostics Questions for Instrumentation and Automation Engineers

Why PLC Interlock Troubleshooting Matters in Modern Process Industries  Modern process industries depend on reliable...