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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

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...
Control Valve

Control Valve Actuator Failure Due to Valve Torque

Table of ContentsWhat Is Valve Torque and Why Is It Important?What Is Valve Torque...
Instrumentation Questions

PLC Analog Input Troubleshooting Quiz with 25 Practical Engineering Questions

Why PLC Analog Input Troubleshooting Skills Matter  Troubleshooting PLC Analog Input is a very important...
Procedures

Solenoid Valve Energized but Valve Not Actuating: Troubleshooting Instrumentation Control Circuits in Hydraulic Systems

Table of ContentsWhy Is My Solenoid Valve Energized but Not Actuating?Understanding How a Hydraulic...
Instrumentation Calculators

RTD Tolerance Calculator for Accurate Temperature Measurement

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Documentation

SIL Verification Report (Safety Integrity Level Verification Report)

Table of ContentsUnderstanding the SIL Verification Report  What is a SIL Verification ReportObjectives of a...
Cybersecurity

Top Companies in Industrial Cyber Security: Best OT Security Vendors for Industrial Automation

Table of ContentsIntroduction to Industrial Cyber SecurityWhy Industrial Cyber Security Matters for Modern IndustriesWhat...
Cybersecurity

What is Two Factor Authentication for Remote PLC Programming in Process Automation?

Table of ContentsWhy Two Factor Authentication is Essential for Secure Remote PLC Programming in...
PLC

PLC Input ON but Output Not Energizing: Complete Troubleshooting Guide

Table of ContentsWhy Is the PLC Input ON but the Output Not Energizing?Why This...
Instrumentation Questions

Advanced pH Analyzer Troubleshooting Quiz | Test Your Industrial Engineering Skills

Why Advanced pH Analyzer Troubleshooting Skills Matter in Process Industries  Accurate pH measurement is vital...
Instrumentation Calculators

Venturi Flowmeter Calculator for Liquid Flow Sizing and Pressure Loss According to ISO 5167 – 4

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Latest articles

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...