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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Control Valve

Control Valve Passing Even When Fully Closed: Causes, Symptoms, Troubleshooting and Solutions

Table of ContentsUnderstanding Control Valve Passing and Why It HappensWhat Does It Mean When a Control Valve Is Passing?How a Control Valve Should Close Under Normal ConditionsCommon Symptoms of a Passing Control ValveMajor Causes of Control Valve PassingControl Valve Shutoff Performance by Valve TypeHow...
Instrumentation Calculators

Instrument Range Calculator | Calculate Span, Rangeability, Turndown Ratio & Calibration Range

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Instrumentation Questions

Advanced Multivariable Transmitter Challenge: Flow, Pressure & Temperature Integration

Combining the power of many process sensors differential pressure, static pressure, and temperature into...
Instrumentation Calculators

Circular HVAC Duct Air Velocity Calculator for Engineers

HVAC experts engaged in the design, installation, and maintenance of ducted air distribution systems...
Engineering

How to Fix Common Cable Management Issues using Cable Tray Accessories

Table of ContentsImportance of Proper Cable ManagementTypical Issues with Cable ManagementHow Cable Tray Accessories...
Communication

CC-Link Industrial Network Protocol: Architecture, Variants, and Applications

Table of ContentsWhat is CC-Link?Origins and Development Timeline - CC-Link ProtocolApplications of CC-Link in...
Control Valve

Control Valve Selection and Recommended Practices for Harsh Process Conditions

Table of ContentsStep 1. Valve Body and Material SelectionStep 2. Trim Material and Cavitation...
Instrumentation Questions

Advanced I/O List Quiz for EPC Instrumentation Engineers – 25 Expert-Level MCQs with Explanations

For instrumentation engineers working on EPC projects, accurately creating an I/O list is absolutely...
Instrumentation Calculators

Rectangular Duct Air Velocity Calculator for HVAC Engineers

The Air Velocity in a Rectangular Duct Calculator is a useful and necessary tool...
Level Measurement

Guided Wave Radar Level Transmitters: Complete Troubleshooting & Maintenance Guide

Table of ContentsProbe Installation and Scarring IssuesFoam and Surface EffectsAntenna (Probe) Contamination and CleaningFlooding,...
DCS

Understanding Permissive Logic and Trip Interlocks in Industrial Systems

Table of ContentsExample of a Permissive ConditionImplementation Platforms for Permissive LogicBehavior of a Permissive...
Calibration

Why Calibration Isn’t the Same as Re-ranging in Process Instrumentation

Table of ContentsWhat is Calibration?What is Re-ranging?Calibration vs. Re-ranging: Key DifferencesPractical Understanding Through a...
Instrumentation Calculators

Gas Flow Unit Conversion Calculator: Standard Cubic Feet per Minute (SCFM) to Standard Liters per Minute (SLPM)

Engineers, technicians, and system designers can use the SCFM to SLPM Conversion Calculator to...
Instrumentation Questions

Top 25 Advanced MCQs on Boiler Control & Interlock Logic for Instrumentation and Control Engineers

This advanced quiz on Boiler Control Systems and Interlocks is for instrumentation and control...
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Latest articles

Control Valve

Control Valve Passing Even When Fully Closed: Causes, Symptoms, Troubleshooting and Solutions

Table of ContentsUnderstanding Control Valve Passing and Why It HappensWhat Does It Mean When...
Instrumentation Calculators

Instrument Range Calculator | Calculate Span, Rangeability, Turndown Ratio & Calibration Range

<!-- Google Fonts (safe to keep as a inside a WordPress "Custom HTML"...
Communication

Profibus PA Communication Problems: Causes, Symptoms and Troubleshooting Guide

Table of ContentsOverview of Profibus PA Communication Challenges What is Profibus PA Communication?Definition of Profibus...
Engineering

FAT vs SAT vs SIT: Three Critical Tests That Determine Whether Your Plant Is Truly Ready for Startup

Table of ContentsIntroductionPurpose of Factory Acceptance TestingFactory Acceptance Test ObjectivesFactory Acceptance Test ObjectivesPLC FAT...