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 Questions

Control Valve Cavitation Troubleshooting Quiz

Advanced Control Valve Cavitation Troubleshooting Questions Control valve cavitation occurs when liquid pressure falls below vapor pressure, creating vapor bubbles that later collapse as pressure recovers. In process plants, this can produce severe noise, vibration, trim erosion, pitting, unstable flow, and premature valve failure. The...
Communication

PROFIBUS Communication Failure Step by Step Diagnosis

Table of ContentsWhat Is a PROFIBUS Communication Failure?Common PROFIBUS Communication Failure SymptomsPROFIBUS Communication Failure vs PROFIBUS Slave FailureCommon Causes of PROFIBUS Communication ErrorsHow to Troubleshoot PROFIBUS Communication FailureStep 1 Identify the PROFIBUS Failure PatternStep 2 Check PLC and PROFIBUS Master & Slave DiagnosticsStep 3...
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Instrumentation

Instrument Air Header Schedule

Table of ContentsWhat is an Instrument Air Header?What is the use of an instrument...
Electronics

Transistor Mode of Operation

Table of ContentsTransistor Cut-off, Saturation, Active RegionTransistor Transistor Operation Transistor Modes of OperationFormula of TransistorCut-off...
Instrumentation

Instrument Cable Schedule: Template, Example, Format and Complete Guide

Table of ContentsWhat is the instrument cable schedule?Detailed Explanation of Instrument Cable ScheduleWhat is...
Instrumentation

Instrument Tray Layout

What is the instrument Tray layout? The Instrument Tray Layout is the diagram that indicates...
Instrumentation

Instrument Location Layout

Table of ContentsWhat is instrument location layout?What are the details in the instrument location...
Calibration

Instrument Calibration in Process Industries – Complete Guide

Table of ContentsEssential Documents Required for CalibrationTools and Equipment Required for CalibrationStep-by-Step Calibration Flow...
Electronics

Latches In Digital Electronics

What is meant by Latches in digital electronics?          Latches is defined as a logical...
Instrumentation

LVDT

Table of ContentsWhat is LVDT?What is the law of LVDT?What is the working principle...
Instrumentation

Active and Passive Transducer

Table of ContentsActive TransducerWhat is meant by Active Transducer?Block Diagram of Active TransducerWhy active...
Flow Measurement

Working Principle of Transit Time Flowmeter

Table of ContentsWorking Principle of Transit Time FlowmeterMounting of Transit type FlowmeterDescribe various types...
Pressure Measurement

What are the major problems in a pressure transmitter and how to troubleshoot it?

Table of ContentsIntroduction to pressure transmitterHow to troubleshoot the problems in a pressure transmitter?Some...
Instrumentation

Instrument Loop Diagrams

Table of ContentsWhat is an Instrument loop diagram?What sources are required to make a...
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Instrumentation Questions

Control Valve Cavitation Troubleshooting Quiz

Advanced Control Valve Cavitation Troubleshooting Questions Control valve cavitation occurs when liquid pressure falls below...
Communication

PROFIBUS Communication Failure Step by Step Diagnosis

Table of ContentsWhat Is a PROFIBUS Communication Failure?Common PROFIBUS Communication Failure SymptomsPROFIBUS Communication Failure...
Instrumentation Calculators

Measurement Uncertainty Calculator: Calculate Combined and Expanded Uncertainty Using GUM

Measurement Uncertainty Calculator - GUM Method #muc-wrap, #muc-wrap * { box-sizing: border-box !important;...
SIS/ESD

Shutdown Philosophy: Engineering Documentation for Process Safety and Emergency Shutdown Systems

Table of ContentsWhat is Shutdown Philosophy and Why is it Important? What Is a Shutdown...