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 and 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.

Classification of valve actuators – Electrical, Hydraulic and Pneumatic

Valve Actuators  Valve actuators are devices that allow valves to be positioned. They can be used to fully open and close a valve, or modulate the position of the valve in an application that requires constant and precise control, such as regulating the fuel flow into a gas turbine or to boilers. Applications of Valve …

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HART transmitter calibration procedure – For pressure transmitter

What is a HART transmitter? How do you calibrate a HART pressure transmitter? Purpose and Scope: The detailed description of this process explains how to calibrate HART pressure transmitter using standards in the process area. Tools required for HART pressure transmitter calibration: Safety Process Industry Calibration Process: Basic Safety and General Aspects Calibration Setup Calibration …

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PV to 4-20mA scaling calculator

4-20 mA signals are used to transmit physical process values, such as temperature, pressure, liquid level, or other physical quantities. The current in the loop represents the equivalent physical process value. Example: A temperature transmitter with a temperature range of 0 to 1000 degrees Celsius produces 7.2 mA in an analogue loop, which is equal …

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Calibration of level troll – Displacer level meter calibration

What is Displacer Level Sensor?  What is level troll calibration? Purpose and Scope: This procedure includes calibration instructions for level transmitters and controllers of the displacer type that have been calibrated with process liquid in the procedure area. Tools required for Calibration: Safety Basic Safety &  General Considerations for Process Industries Calibration Process Calibration Setup …

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Industrial thermometer calibration

What is an industrial thermometer? The gas-actuated, bimetal, or expansion principle is used in the operation of temperature gauges. They have a measurement range of -200 to +700 °C. Moreover, all instruments can be used in thermowell. The thermal condition of a homogeneous substance is measured by thermometers. The measuring system and the body that …

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How to calibrate Fieldbus transmitters?

What is FF transmitter? Fieldbus is a bidirectional communication protocol that enables real-time, closed-loop control between intelligent field devices and host systems. A host may be any software programme, such as a process control, asset management, or safety system at a plant, or a technician’s portable or notebook device. FF is an open standard that …

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Types of level measurement

Describe the various types of level measurements. Level measurement of fluid is categorized into two groups 1. Direct Level Measurement 2. Indirect level measurement Let us discuss direct-level measurement in detail. Direct Method  It is also known as the Mechanical method. This method is considered a local indication method. Direct-level measurement is a simple & …

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