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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Industrial Automation

Pneumatic force balance instruments

Table of ContentsIntroduction to force balance instrumentsWhat is a force balance instrument?What is the...
Instrumentation

Skills required for Instrumentation Engineer

Table of ContentsWhat Skills are needed for Instrumentation Engineer?Technical Skills:Research Skills:Communications Skills:Problem-solving Skills:Skills for...
Instrumentation

Non Technical Interview Preparation for Instrumentation and Control Technician

Below mentioned are few non technical questions and sample answers which can be provided...
Instrumentation

Cause and Effect Drawings

Table of ContentsWhat is cause-and-effect drawing?Detailed Explanation of Cause & Effect DrawingsWhat are documents...
Level Measurement

Zero Suppression and Zero Elevation

Table of ContentsWhat is Hydrostatic Pressure?Theory of Hydrostatic Pressure:What is the Hydrostatic Pressure Formula?Level...
Level Measurement

Troubleshooting of DP Type Level Transmitter

Table of ContentsHow do you measure tank level with DP transmitter?For example in the...
Instrumentation

SAMA Drawing

What is SAMA Drawing? SAMA diagrams are commonly used in the process industry and are...
Instrumentation

Control Narrative

Table of ContentsWhat is the control narrative?Detailed Explanation of Control NarrativeWhat is the purpose...
Flow Measurement

Troubleshooting of DP Type Flow Measurement

Table of ContentsWhat is DP flow meter?To troubleshoot issues with a DP type flow...
Instrumentation

What is Cable Tray and How it is used in Industrial applications?

Table of ContentsWhat is Cable Tray?Describe the Purpose of Cable Tray?Classification of Cable Trays1....
Instrumentation

Instrument Bill of Material

Table of ContentsWhat is an Instrument Bill of Material?What is the purpose of the...
Instrumentation

Instrument Junction Box (JB) schedule

Table of ContentsWhat is an instrument junction box?Why is a junction box necessary?Why are...
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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...