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Common Faults and Solutions for Electromagnetic Flowmeters

Electromagnetic flowmeters are widely used in various industries for accurate flow measurement. However, they may encounter operational issues that can be broadly categorized into two types: (1) faults originating from the instrument itself, such as structural or component failures; and (2) faults caused by external factors, such as improper installation, flow changes, sedimentation, and scaling. […]

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The Structure and Functions of Electromagnetic Flowmeters

Electromagnetic flowmeters are widely used in industrial applications for measuring the flow rate of conductive liquids. Their structure is composed of several critical components, each with a unique function. This article provides an in-depth explanation of the components, their roles, and the key considerations for their design and application. 1. Magnetic Circuit System The magnetic

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Application of Magnetic Level Gauges in Environmental Engineering

Dalian Zero Instrument Technology Co., LTD Magnetic level gauges have become essential instruments in environmental engineering due to their corrosion resistance, high reliability, and multi-functional integration capabilities. This article explores their core applications, technical advantages, real-world case studies, and common challenges encountered in various environmental treatment scenarios. 1. Core Applications in Environmental Engineering 1.1 Wastewater

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Differential Pressure Flow Meters: Principles, Installation, and Applications

1. Principle of Differential Pressure Flow Measurement When a fluid completely fills a pipeline and flows through a primary element (such as an orifice plate or nozzle), a local constriction is created. This results in an increase in velocity and a decrease in static pressure. Consequently, a differential pressure (DP) forms before and after the

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What to Do When the Straight Pipe Length for Flowmeters is Insufficient?

Flowmeters often require a certain length of straight pipe (straight run) upstream and downstream to ensure accurate readings. However, in many practical installations, site conditions make it difficult or impossible to meet these requirements. So, what can you do in such situations? Below are detailed methods to address insufficient straight pipe length for flowmeters. 1.

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How to Handle Flowmeter Indications During Plant Shutdown

When a plant is shut down, it is expected that all flowmeters should indicate zero flow. However, it’s common to encounter false flow readings across various types of flowmeters. This article explains the possible causes and provides detailed handling methods for different types of flowmeters, ensuring correct zero indication and avoiding potential misjudgments. 1. Differential

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Technical Installation Guide for Electromagnetic Flowmeters

1. Site Assessment 1.1 Pipe Conditions Ensure the inner wall of the pipeline is smooth, corrosion-free, and free of deposits. Installation should be on horizontal or vertical straight sections of pipe. Avoid installing near elbows, branch connections, or diameter reductions. 1.2 Fluid Characteristics The fluid must have a minimum conductivity (typically > 5 μS/cm). Avoid

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The Use of Thermal Mass Flow Meters for Measuring Flammable Gases: Safety Considerations

In industrial processes, accurately measuring gas flow rates is crucial for efficiency, safety, and regulatory compliance. Thermal mass flow meters (TMFMs) have become a popular choice for measuring the mass flow of gases due to their precision, ease of installation, and ability to directly measure mass without the need for additional pressure or temperature compensation.

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The Importance of Measuring Small Hydrogen Gas Flow Rates and the Appropriate Instruments for the Task

Hydrogen is an essential gas with widespread applications in industries ranging from energy production to chemical manufacturing and medical research. Its significance is rapidly increasing due to its role as a clean fuel in the transition towards sustainable energy systems. However, measuring the flow rate of hydrogen, especially in small amounts, can be challenging. Accurate

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