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

Turndown Ratio Calculator for Flow Meters and Process Instruments

Table of ContentsIntroduction to Turndown Ratio in Process IndustriesWhat Turndown Ratio Means In InstrumentationWhy...
FAT Activities

Factory Acceptance Test Procedure for Distributed Control System DCS

Table of ContentsWhat is Factory Acceptance Test in DCS SystemsPurpose of DCS Factory Acceptance...
Process Control

Why Split Range Control is Used in Industrial Automation

Table of ContentsWhat is Split Range Control in Process Control SystemsHow Split Range Control...
Instrumentation Questions

Flow Measurement Selection in Application Scenarios for Process Industries EPC Design Engineering

Why Flow Measurement Selection is Critical in EPC Design Engineering  In projects in the EPC...
Communication

Why 75 Ohm Termination Resistor is Used in ControlNet?

Table of ContentsWhat is a Termination Resistor in ControlNet?Purpose of a ControlNet Termination ResistorHow...
Engineering

Top 10 Control Valve Sizing Software Used in Process Industries

Table of ContentsWhy Control Valve Sizing Software Is Important in Modern IndustriesAccurate Cv Calculation...
Procedures

Running Inspection Procedure for Analyzer and Sampling System in Process Industries

Table of ContentsRunning Inspection Procedure for Analyzer and Sampling SystemWhy Running Inspection Is ImportantWhat...
Instrumentation Calculators

Signal-to-Noise Ratio (SNR) Calculator for Instrumentation and Control Systems

Table of ContentsIntroduction to Signal-to-Noise Ratio in InstrumentationWhat Is Signal-to-Noise Ratio (SNR)?SNR Formula and...
Instrumentation Questions

Control Valve Cv Calculation Quiz for Instrumentation Engineers

Introduction to Control Valve Cv Calculation and Valve Sizing Control valve sizing is a critical...
SCADA

Cloud Based SCADA in Industry: Benefits, Architecture, Security and Real Use Cases

Table of ContentsIntroduction to Cloud Based SCADA in IndustryWhat Is Cloud Based SCADA?Why Cloud...
Engineering

Anti-Surge Control Valve Selection and Sizing – Complete Engineering Guide

Table of ContentsIntroduction to Compressor Surge and Its RisksEffects of Surge on Compressor SystemsWhat...
Instrumentation Calculators

Profibus Segment Calculator for DP and PA Network Design

Profibus DP/PA Segment Calculator ...
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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...