Flow meter

Intrinsically Safe (IS) Instruments are critical safety devices designed for use in hazardous environments where explosive gases, vapors, or dust may be present. These instruments operate by limiting the electrical energy available to a level that is too low to ignite a potential explosive atmosphere, thus providing a key layer of safety in industries such […]

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.

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

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

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

Target flow meters are widely used to measure the flow of liquids, gases, or steam. Below are the common faults encountered in practice, their possible causes, and recommended maintenance solutions. 1. No Flow Display Possible Causes: Power FailureIssues such as circuit breaks, short circuits, or power module damage can result in the flow meter failing

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.

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

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

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.