Author name: Rabert T

What is Instrumentation & Control?

What is Instrumentation & Control? Instrumentation is defined as measurement and control of process variables within a production, or manufacturing area.                                        In other words, instrumentation & control is one that deals with automated measurements that controls the physical quantities like pressure, level, temperature, flow etc. What are the different classes in Measuring instruments? Explain …

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What are Analog & Digital Signals? Difference between these signals

Define Signals? Signals are defined as a source of information which varies with respect to independent variable. Signals are used in communicating information in any form. A data or information or message which is collected from one system is converted into electromagnetic wave and send to receiver end. The signals converted into electromagnetic wave can …

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manometer feature

Working and Types of Manometer

What is the working principle of a manometer? Describe various types of manometers used to measure pressure: Several types of manometers are used to measure pressure as laboratory or local indicating equipment 1. U-Tube Manometer: P1-P2 = (ρ-ρ1)*(h1-h2)*g  In general P1-P2=ρ*h*g Where ρ= Fluid Density h= Height g= Gravitational Constant = 9.8 ms-2 P2-P1 = …

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Difference between Sensor & Transducer

What is Transducer? The non-electrical quantity is converted into an electrical form by using electrical method. The techniques like measurement, manipulation and control are done in transducer. The device when actuated, transforms energy from one form to another is called a transducer. Transducers classification: The transducer classifications shown are: Active & Passive Transducer: Active transducer …

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RVDT- Rotary Variable Differential Transformer

What is RVDT? RVDT is a passive type transducer. RVDT means Rotary Variable Differential Transformer. It is also an electromechanical-based inductive transducer that converts angular displacement linear output. RVDT main function is used to sense the angular displacement into proportional electrical signal. LVDT and RVDT operate in similar ways. In contrast to RVDT, which uses …

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Ultrasonic Level Transmitter

Working Principle of Ultrasonic Level Transmitter: Distance (S) = [Speed of Sound in Air(C) * Time Delay (T)]/ 2 Where S:  Actual Distance to be measured, C: Speed or velocity of sound in air, T: Time Delay Level = Tank Height – Distance Minimum Measuring Distance (Xm): Maximum Measuring Distance (XM): Installation guidelines for Ultrasonic …

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hook up 123

Instrument Hook-up Diagrams

What is an instrument hook-up drawing? An instrument hook-up diagram, also known as an installation drawing, describes the scope of work between the mechanical and instrumentation departments. The hook up drawing explains how to properly install the instruments, from the tapping point in the process line up to the measuring and control instrument, to ensure …

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