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

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 through PLC based sequencing, pressure instrumentation, permissives, alarms, trips and automatic standby selection. For automation and instrumentation professionals, understanding this logic is essential for DCS configuration, PLC programming, control panel...
Procedures

Galvanic Isolator Troubleshooting Procedure in an Analog Input Loop

Table of ContentsIntroduction to Galvanic Isolator TroubleshootingUnderstanding a Typical 4 to 20 mA Analog Input LoopCommon Symptoms of Galvanic Isolator ProblemsStep by Step Galvanic Isolator Troubleshooting ProcedureIndustrial Troubleshooting Case Study: Incorrect DCS Pressure ReadingSafety Precautions for Galvanic Isolator TroubleshootingGalvanic Isolator Selection and Maintenance Best...
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SAT Activities

Control Valve Site Acceptance Test (SAT) Procedure – Step-by-Step Field Guide

Table of ContentsWhy a Thorough Control Valve  SAT MattersSAT Purpose and ScopePreparatory Activities -...
Instrumentation Calculators

Advanced Venturi Tube Flow Calculator – Formula, Working & Applications

Advanced Venturi...
Instrumentation Questions

Control Valve Hunting Troubleshooting – Advanced MCQ Quiz

What Is Control Valve Hunting? Control valve hunting is a common and expensive problem in...
Control Valve

ESDV vs EBDV – Fail Close vs Fail Open | Emergency Shutdown Valve vs Emergency Blowdown Valve

Table of ContentsEmergency Valves in Process Safety SystemsWhat is an ESDV (Emergency Shutdown Valve)?What...
PLC

PLC Permissive Logic Troubleshooting Procedure for Instrumentation Engineers

Table of ContentsWhy PLC Permissive Logic is Critical in Process PlantsWhat is PLC Permissive...
Engineering

JB Grouping in Industrial Automation and Instrumentation – Complete Practical Guide for EPC, Site and Commissioning Engineers

Table of ContentsJB Grouping in Process Industry Instrumentation SystemsWhat Is JB Grouping in Instrumentation...
Instrumentation Calculators

PLC Raw Count Calculator: Comparison with PLC Internal Scaling Blocks, Real-World Use Cases and Practical Benefits

Advanced PLC Raw Count Calculator @import url('https://fonts.googleapis.com/css2?family=Poppins:wght@400;600;700;800&display=swap'); :root{ --brand-500: #0b3c5d; --brand-600: #083047; --muted:...
Instrumentation Questions

Gas Turbine Start Interlock & Trip Test Procedure – Advanced Quiz

Why Gas Turbine Startup Interlocks and Trips are Critical Starting up a gas turbine is...
Instrumentation

Beyond Zero: Understanding the Dead Zero Problem in Industrial Analog Signals

Table of ContentsAnalog Signals in Industrial Process ControlUnderstanding Analog Signals in Process InstrumentationCommon Process...
Engineering

Hybrid Level Measurement Selection Procedure for EPC Instrumentation Engineers

Table of ContentsHybrid Level Measurement in EPC ProjectsWhat Is Hybrid Level Measurement in Instrumentation...
Instrumentation Calculators

Coriolis Mass Flow Calculator – Complete Guide for Instrumentation & Process Engineers

Coriolis Mass...
Instrumentation Questions

Refinery Instrumentation Quiz – Advanced Level

This advanced refinery instrumentation quiz is for people who are already experienced in developing,...
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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...
Instrumentation Calculators

Pressure Transmitter Overrange Protection Calculator: Calculate Pressure Surge and Overpressure Risk

Table of ContentsWhat Is Pressure Transmitter Overrange Protection?Pressure Transmitter Overrange Protection Calculator ParametersHow to...
Instrumentation Questions

Advanced Instrument Logic Diagram Quiz for Process Control Systems in Process Industries

Instrument Logic Diagram Quiz Introduction An Instrument Logic Diagram displays the interaction of process conditions,...