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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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 Switch Operating PrinciplePressure Switch Hysteresis. Set Point and Reset PointNormally Open and Normally Closed Pressure Switch ContactsHydraulic Pressure Switch vs Pressure TransmitterCommon Hydraulic Pressure Switch Problems and SymptomsPressure Switch Not...
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 PLC interlock systems to protect personnel, equipment, and production. Troubleshooting PLC interlocks requires strong knowledge of process control, field instrumentation, PLC diagnostics, permissive logic, shutdown sequences, and industrial automation practices....
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Instrumentation Calculators

PLC Power Supply Calculator – Complete Guide for Accurate PLC Power Sizing

Table of ContentsWhy You Need a PLC Power Supply Calculator?Understanding PLC Power Consumption CalculationKey...
PLC

Difference Between Triconex PLC and Other PLCs: A Complete Guide

Table of ContentsWhat is a Triconex PLC?What are Conventional PLCs?Key Differences Between Triconex PLC...
Instrumentation Questions

Advanced Electromagnetic Flowmeter Troubleshooting Quiz – 25 Expert Questions

Electromagnetic flowmeters are the most important tools in process industries. They monitor the volumetric...
Engineering

Avoiding Mistakes in Instrumentation Cable Tray Installation: A Guide for EPC Projects

Table of ContentsWhat is an Instrumentation Cable Tray?Common Mistakes in Instrumentation Cable Tray InstallationAdditional...
Commissioning

Pressure Gauge vs Pressure Transmitter: When Readings Don’t Match, Who Should You Trust?

Table of ContentsWhy Do Pressure Gauges and Transmitters Sometimes Disagree?Step-by-Step Troubleshooting GuideScenario 1: The...
Instrumentation Tools

Zirconia Oxygen Analyzer Nernst mV Output Online Calculator – Free Excel Tool

Zirconia Oxygen...
Engineering Standards

Key Instrumentation & Control (I&C) Standards Every Engineer Should Know

Table of ContentsWhy Standards Important in Industrial InstrumentationIEC (International Electrotechnical Commission) StandardsISO (International Organization...
Instrumentation Tools

Radar Level Transmitter Calculator for Tank Level Measurement

Table of ContentsWhy radar level transmitters are usedRadar Level Transmitter Calculator - Free Excel...
Instrumentation Questions

Advanced Quiz on Practical Troubleshooting of DO Signals in PLC for Process Industries

Digital Output (DO) signals are the backbone of PLC-based automation, controlling actuators, valves, motors,...
Engineering

Intrinsic Safety Protection Systems: Understanding Ex ia, Ex ib, and Ex ic

Table of ContentsWhat is Intrinsic Safety (IS)?Fault Tolerance and Zener Diodes in IS BarriersExia...
Field Instrumentation

4-20 mA Loop Troubleshooting with Loop Calibrators : A Practical Guide

Table of ContentsWhat is a Loop CalibratorWhy 4-20 mA Loops are Critical in Process...
HVAC

Method Statement for Installation of HVAC Dampers

Table of ContentsObjective of the HVAC Damper Installation Method StatementScope of HVAC Damper Installation...
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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...
Instrumentation Calculators

Capacitance Level Sensor Calculator: Calculate Liquid Level and Capacitance for Instrumentation Applications

Capacitance Level Sensor Calculator :root{ --bg:#F2F5F3; --panel:#FFFFFF; ...
SIS/ESD

How are ESD Signals Selected? Complete ESD Signal Selection Guide

Table of ContentsWhat Is an ESD Signal in an Emergency Shutdown System?Why Is ESD...