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 Questions

Preparation of IO List Documentation in EPC Engineering in Process Industries: Advanced Quiz for Instrumentation and Control Engineers

Why IO List Documentation Matters in EPC Engineering Projects  The IO list is the heart of instrumentation engineering in EPC projects since it integrates field instruments, signal kinds, control systems and execution documentation in a single structured project reference. If the IO list is not...
Procedures

Faulty Thermocouple Replacement Procedure in Process Area: Complete Step-by-Step Field Guide for Instrumentation Engineers

Table of ContentsIntroduction to Thermocouple Replacement in Process AreasPurpose and Scope of the Thermocouple Replacement ProcedureWhen a Thermocouple Should Be ReplacedCommon Signs of a Faulty ThermocoupleHow to Confirm the Fault Before ReplacementPre Job Planning and Work PreparationResponsibilities of Operations and Instrumentation PersonnelReview of P&ID,...
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Instrumentation Questions

Radiometric Level Measurement: 25 MCQs for Engineers & Technicians

This assessment will test your knowledge of radiometric level systems, including how to fix...
Temperature Measurement

Why Install Thermowells at a 45° Angle? Engineering Logic Explained

Table of ContentsWhat is a Thermowell?Why Install a Thermowell at a 45° Angle?Importance of...
PLC

Hot Standby in PLC Systems: Architecture, Working, and Benefits

Table of ContentsWhat is Hot Standby in PLC?Need for Redundancy in PLC SystemsVisualizing Hot...
How to

How to Read a Datasheet of a Temperature Transmitter ?

Table of ContentsPractical Guide using Rosemount 3144P as a Case StudyHow to read the...
Instrumentation Calculators

Online PT1000 RTD Calculator – Convert Resistance (Ω) to Temperature (°C) Instantly

A Resistance Temperature Detector (RTD) is a very accurate temperature sensor that works by...
Instrumentation Questions

Process Instrument Calibration MCQ Challenge – NIST, ISO 17025, ISA Standards & Calculations

In industrial settings, mastering process instrumentation calibration is very important for making sure that...
Calibration

Smart Pressure Transmitter Sensor Trim Guide with Diagrams & Calibration Steps

Table of ContentsSmart Pressure Transmitter Signal Flow DiagramWhat is Sensor Trim?Types of Sensor TrimsZero...
Control Valve

How to Troubleshoot a Control Valve Passing Problem after Overhauling: Complete Root Cause Analysis

Table of ContentsCase Summary: Control Valve Passing After OverhaulUnderstanding Control Valve PassingRoot Cause Exploration:...
Engineering Standards

30+ International Standards for Control Systems: The Complete Guide for Automation & Instrumentation Engineer

Table of ContentsProgrammable Controllers and Industrial LogicIndustrial Communication and Data IntegrationFunctional Safety and Risk...
Instrumentation Calculators

Mean Time To Repair (MTTR) Calculator for Process Instrumentation Downtime Analysis

This Mean Time To Repair (MTTR) Calculator is a must-have for instrumentation and maintenance...
Instrumentation Questions

Test Your Knowledge: Instrument Logic Diagram Quiz Based on Real DCS to MCC Logic Diagram

This advanced quiz is for professionals and students who want to learn how to...
Control System

How to Read a DCS Cascade Control Loop Diagram: A Complete Guide with Example

Table of ContentsWhat is a Loop Diagram?What is Cascade Control?Purpose of a DCS Cascade...
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Instrumentation Questions

Preparation of IO List Documentation in EPC Engineering in Process Industries: Advanced Quiz for Instrumentation and Control Engineers

Why IO List Documentation Matters in EPC Engineering Projects  The IO list is the heart...
Procedures

Faulty Thermocouple Replacement Procedure in Process Area: Complete Step-by-Step Field Guide for Instrumentation Engineers

Table of ContentsIntroduction to Thermocouple Replacement in Process AreasPurpose and Scope of the Thermocouple...
Documentation

Instrument Index Generator for EPC Instrumentation Projects

Table of ContentsInstrument Index Generator for Efficient Instrumentation Documentation ManagementWhat is an Instrument Index...
Instrumentation Calculators

Control Valve Flow Characteristic Calculator: Linear, Equal Percentage, and Quick Opening Guide

Table of ContentsWhy Use a Control Valve Flow Characteristic Calculator? What Is a Control Valve...