Author name: 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

Understanding the Working Principle of Multivariable DP Mass Flow Transmitters

What is a Multivariable Transmitter? Conventional Flow Calculation Methods Working Principle of DP Multivariable Mass Flow Transmitters How does a Multivariable Transmitter Work? Construction and Operation of Multivariable Flow Transmitters Formula Calculation for Mass Flow Rate Determination The calculation of mass flow rate (Qmass) by a multivariable flow transmitter involves a combination of sensor readings …

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Instrumentation and Control System Interview Questions and Answers

Welcome to our comprehensive collection of interview questions and answers covering various aspects of instrumentation, control systems, PLC, industrial automation, and electrical engineering. Explore the individual subjects listed below for insightful reading and planning.  PLC (Programmable Logic Controllers) Interview Questions and Answers Explore a wide range of PLC interview questions covering basic concepts, safety considerations, …

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6 Factors to Consider When Choosing an Oxygen Analyzer for your Application

How to Choose an Oxygen Analyzer for Your Application? Factor No.1: Oxygen Concentration Level Here’s a thorough explanation of each option: Low Oxygen Concentrations (1% or ppm) Gas Chromatography Electrochemical Oxygen Analyzers Zirconia Oxygen Analyzers Laser Oxygen Analyzers Increased Oxygen Concentrations (1 to 21% or More) Paramagnetic Oxygen Analyzers Click here to know more about …

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Troubleshooting of Oxygen Analyzer : Paramagnetic Type

What is a Paramagnetic Oxygen Analyzer? Click here to know more about Working Principle of Paramagnetic O2 Analyzers  Step by Step Troubleshooting Procedure for of 02 Analyzer : Paramagnetic Type A paramagnetic oxygen analyzer detects oxygen concentration using magnetic fields. Various errors can occur, including sensor, sampling system, chamber, calibration, and display issues, each with …

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Collection of Preventive Maintenance (PM) Procedures for Instrumentation and Control Systems

Please find attached a complete guide on how to maintain instruments and control systems. Checklists and step-by-step instructions for preventive maintenance have been put together for a wide range of instrumentation system such as level measurement systems, weighing scales, analysis instruments, control valves, PLCs, LVDTs, compressors, transformers, and more. Whether you’re conducting routine maintenance or …

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Step by Step Preventive Maintenance Procedure for O2 Analyzers : Paramagnetic Type

Step 1: Understanding Type of Paramagnetic O2 Analyzers Click here to know more about Working Principle of Paramagnetic O2 Analyzers  Step 2: Safety Precautions Step 3: General Inspections Step 4: Environmental Conditions Step 5: Sample Gas Filter Maintenance  Step 6: Gas Path Leak Tightness Check Step 7: Auxiliary Gas Check Caution: Conduct zero and span …

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4 – 20 mA to 1 – 5V, 3 -15 Psi and 0.2 – 1.0 Bar Signal Conversion Calculator

Step 1: 4 to 20 mA to 1 to 5V Signal Conversion Calculation Let us assume that you need to convert a standard current signal (I) in the 4–20 mA range to a standard voltage signal (V) in the 1–5 volt range. Here’s the formula: The output voltage signal  is  V = Vmin+{(I-Imin)/(Imax-Imin)} X (Vmax-Vmin) …

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Oxygen Analyzer Working Principle: Paramagnetic Type

Understanding the Paramagnetic Oxygen Analyzer How does a Paramagnetic Oxygen Analyzer Work? Operating Principles of Paramagnetic O2 Analyzers  Paramagnetic oxygen analyzers employ several different methods for accurate oxygen concentration measurement: Magnetic Proportional Flow Rate Method: Paramagnetic Oxygen Analyzer Magnetic Wind Method: Paramagnetic Oxygen Analyzer Magnetic Force Method (Dumbbell Type): Paramagnetic Oxygen Analyzer Magnetic Force Method …

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