Applications

Why HYSTERESIS is important for Pressure Measurement?

According to Merriam-Webster, hysteresis is the “lagging of a physical effect on a body behind its cause (as behind changed forces and conditions).” Thus, when outside forces act on an object, that object will either immediately spring back to its original state, or more likely, and it will somehow change or exhibit properties from previous deformations. …

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YS1700 Function Block Programming

Convert Yokogawa YS1700 Text Program to Function Block

I almost can’t trace back when the Yokogawa YS1700 launched, but based on the YS1700 successor the Yokogawa YS170 was discontinued in 2008. Therefore we assume the Yokogawa YS1700 began since 2008. This new controller upgrades with several features, for instance, the new LCD, shorter body length, 1000 steps text Program and 400 modules of …

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Variable Area vs Mass Flow

Variable Area Flow Meter vs Mass Flow Meter for Gas Flow Measurements

Comparison between Variable Area Flow Meter and Mass Flow Meter often compare of Volumetric Flow and Mass Flow Measurements. Advantages of Mass Flow Over Volumetric Flow Measurements Mass Flow meter is having widest Turndown Ratio, Fast Response Time, High Accuracy and also High Repeatability Mass Flow Rate independence to pressure and temperature changes Pressure and Temperature Compensation does not …

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Magnetic Flow Meter – Principle and Application

What is Magnetic Flow Meter A magnetic flow meter (mag meter, electromagnetic flowmeter) is a transducer that measures fluid flow by the voltage induced across the liquid by its flow through a magnetic field. A magnetic field is applied to the metering tube, which results in a potential difference proportional to the flow velocity perpendicular to the flux …

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Gas Sampling using Digital Mass Flow Meter

How to perform Gas Sampling using Digital Mass Flow Meter?

How to perform Gas Sampling using Digital Mass Flow Meter The Vögtlin red-y compact 2 meters is used as the heart of a reliable automatic in the analytical world, low-cost gas sample taking the device. Emission or environment measurements often demand periodic sampling of a fixed amount of gas and collect them in containers or sample bags. …

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Basic understanding of Pressure Measurement

What is Pressure Measurement? Pressure, flow, level, and temperature are the four common plant measurements. Of the four, the pressure is the most fundamental and common. The three remaining measurements can be inferred from pressure-flow (orifice plates, pitot tube, venturi), temperature (pressure thermometer), and level (hydrostatic ‘Head’ pressure). It can also infer density (pressure for …

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Mass Flow Meter and Controller Overview

How Measurement and Control of Low Gas Flow Rates?

Introduction There are several fundamental measurement techniques for flow meters, such as: Electromagnetic Flow Meters Thermal Mass Flow Meters Coriolis Mass Flow Meters Differential Pressure Flow Meters Vortex Flow Meters Position Displacement Flow Meters (PD Flow Meters) Turbine Flow Meters Variable Area Flow Meters Other than the ones mentioned above, there are some less known …

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