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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Control Valve

How to Troubleshoot On-Off / Shutdown Valve

Table of ContentsProblem No.1: On-Off Valve Feedback output signal IssueProblem No.2: On-Off Valve is...
Calibration

9 Step Zirconia Oxygen Analyzer Calibration Procedure

Table of ContentsWhat is Zirconia Oxygen Analyzer?Working Principle of Zirconia Type Oxygen AnalyzerWhy Calibration...
Engineering Standards

Codes and Standards for Control Valve Selection in Industrial Applications

Table of ContentsASME (American Society of Mechanical Engineers)ANSI/FCI (American National Standard Institute/Fluid Control Institute)IEC...
Instrumentation

Control Valve Flow Coefficient (Cv) in Industrial Applications

Table of ContentsDefinition of Valve Flow Coefficient (Cv)Significance of Cv in EngineeringStep-by-Step Guide to...
SAT Activities

Site Acceptance Test (SAT) Procedure for PLC Systems

Table of ContentsSection 1: Overview of SAT for PLC SystemsSection 2: Pre-SAT PreparationSection 3:...
Pressure Measurement

Pressure Gauge Failure: Causes, Solutions & Troubleshooting Guide

Table of ContentsFactor No.1: Mechanical VibrationFactor No. 2: PulsationFactor No. 3: Extreme TemperatureFactor No....
Calibration

Differences Between Validation and Calibration

Table of ContentsUnderstanding Validation and CalibrationValidation: Definition and PurposeCalibration: Definition and PurposePerforming Calibration and...
How to

Step By Step Troubleshooting Guide for Motorized Control Valve (MOV)

Table of ContentsProblem No.1: Actuator Motor Not StartingProblem No.2: Actuator Motor Running ContinuouslyProblem No.3:...
Flow Measurement

Understanding the Working Principle of Multivariable DP Mass Flow Transmitters

Table of ContentsWhat is a Multivariable Transmitter?Conventional Flow Calculation MethodsWorking Principle of DP Multivariable...
Interview Questions

Instrumentation and Control System Interview Questions and Answers

Welcome to our comprehensive collection of interview questions and answers covering various aspects of...
Analytical Instrumentation

6 Factors to Consider When Choosing an Oxygen Analyzer for your Application

Table of ContentsFactor No.1: Oxygen Concentration LevelFactor No.2: Entire Gas Mixture CompositionFactor no.3: Environmental...
How to

Troubleshooting of Oxygen Analyzer : Paramagnetic Type

Table of ContentsWhat is a Paramagnetic Oxygen Analyzer?Step by Step Troubleshooting Procedure for of...
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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...