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

Displacer Level Transmitter Calibration Calculator for Dry Calibration Step by Step Guide

Table of ContentsDisplacer Level Transmitter Calibration Calculator Complete GuideDisplacer Level Transmitter Dry Calibration Weight...
Automation

Alarm Setpoint Field Validation Checklist for Process Instruments: Complete Guide for Instrumentation and Control Engineers

Table of ContentsWhat Is Alarm Setpoint Field Validation in Process Instruments?Why Alarm Setpoint Validation...
Instrumentation Questions

Troubleshooting Bently Nevada 3500 Series Vibration Monitoring System Quiz for Process Industries

Introduction to Bently Nevada 3500 Series Troubleshooting Quiz The Bently Nevada 3500 series vibration monitoring...
Industrial Automation

Safety Light Curtain Working Principle: How Does a Safety Light Curtain Work?

Table of ContentsWhat is a Safety Light Curtain?Main Components of a Safety Light CurtainHow...
Instrumentation Calculators

Shield Grounding Noise Calculator for Instrumentation: A Practical Engineer Guide

Automation

How to Choose the Right HMI Display for Industrial Automation

Table of ContentsIntroduction to HMI Display Selection in Industrial AutomationWhat Is an HMI Display...
PLC

ControlLogix 5590 Explained: Next-Gen PLC for Smart Manufacturing

Table of ContentsIntroduction to Next-Generation PLCsWhat is ControlLogix 5590 PLC?Key Features of ControlLogix 5590...
Instrumentation Questions

Can You Solve Closed Tank Level Measurement Failures? Advanced Instrumentation Troubleshooting Quiz

Closed Tank Level Measurement Troubleshooting Quiz for Process Industry Professionals When the process is pressured,...
SIS/ESD

Top Critical Mistakes in Safety Instrumented System Design as per ISA 84 Standard and How to Avoid Them

Table of ContentsWhy Safety Instrumented System Design Mistakes Matter in Process IndustriesWhat Is a...
Control Valve

Globe vs Ball vs Butterfly Control Valves Complete Comparison Guide for Flow Control Selection and Applications in Process Industries

Table of ContentsIntroduction to Control Valve Selection in Process IndustriesWhat is a Globe Valve...
Instrumentation Calculators

IS Barrier Earth Fault Current Calculator | Intrinsic Safety Loop Design Tool

Table of ContentsWhat is an IS Barrier Earth Fault Current Calculator?Why IS Barrier Earth...
Calibration

Differential Pressure Switch Calibration Procedure

Table of ContentsWhat Is a Differential Pressure Switch and How Does It Work?Why Differential...
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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...