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Smart gas Roots (waist wheel) flow meter Intelligent gas waist wheel (Roots) flowmeter is a new generation flowmeter that integrates flow, temperature, and pressure detection functions, and can automatically compensate for temperature and pressure. Gas is a compressible fluid, and its volume value is closely related to temperature and pressure. In order to unify standards for both parties, it is necessary to convert the actual volume into a standard volume under reference conditions (101.325 kPa 20°C). In order to achieve this purpose, the smart gas waist wheel flowmeter can accurately correct the volume of gas; it is an ideal instrument for gas measurement in urban gas, petroleum, chemical, electric power, metallurgy and other industries. more
TUF Series Portable Ultrasonic Flow Meter The TUF series ultrasonic flow meter utilizes the principle of low voltage and multiple pulsation time difference, adopts the high-precision and ultra-stable differential transmission of double-balanced signals and differential receiving digital detection technology to measure the acoustic wave transmission time in both the downstream and counter-current directions, and calculates the flow rate according to the time difference.It has the characteristics of good stability, small zero drift, high measuring accuracy and high anti-interference of measuring range over wide. more
LDB Intelligent Type Electromagnetic Flow Meter The LDB intelligent type electromagnetic flow meter consists of a sensor and a converter. It is based on Faraday's law of electromagnetic induction, which is used to measure the volume flow of conductive liquid with conductivity greater than 5μs/cm. It is an inductive meter for measuring the volume flow of conductive medium. In addition to measuring the volume flow of general conductive liquid, it can also be used to measure the volume flow of strong corrosive liquids such as strong acid and alkali and uniform liquid-solid two-phase suspension liquid such as slurry, pulp and paper pulp. more
LKQ Thermal Gas Mass Flow Meter LKQ thermal gas mass flow meter is a mass flow measurement and monitoring meter,which can detect air, natural gas, hydrogen, oxygen, chlorine, nitrogen and ammonia, ammonia, coal gas, phosgene, flue gas and various chemical mixtures, without pressure and temperature compensation. It can be widely used in petroleum, chemical, metallurgy, electric power, water treatment, paper, food, medicine, cement, textile and various production, scientific research units for process control and gas flow measurement. Widely used in: flow measurement of steel plant, coking plant gas. more
LLGQ Gas Roots /Waist Wheel Flow Meter The gas roots flowmeter has been used as a volumetric meter for more than 100 years. With the features such as high precision, wide range, small volume, light weight, convenient installation and maintenance, reliable and durable service life, it is widely used in natural gas, coal gas, air and other gas flowmeters.It is an ideal flowmeter device for urban gas, oilfield chemical, scientific research and other departments at home and abroad. more
High Precision Gas Turbine Flow Meter Gas turbine flowmeter is a new generation of high precision, high reliability gas precision measuring meter integrating temperature, pressure, flow sensor and intelligent flow totalizer developed by the advanced technology of flow meter at home and abroad, optimized by theories of gas mechanics, fluid mechanics and electromagnetics, which has excellent low pressure and high pressure metering performance. more
LUGK Multi Variable Type Vortex Flow Meter Mass vortex flowmeter, simple to install. Connection mode: flange and clamping connection. It has superior reliability and stability due to no movable part, and the detecting portion has only a simple configuration of the vortex generator. Low pressure loss, no leakage point, and high safety performance. Robust sensor construction for high temperature (up to 3500 ° C), high pressure fluid. more
LUGC Steam Gas And Liquid Insert Type Vortex Flow Meter The Insert Type vortex flowmeter is simple in structure and can be made into online installation type.Applicable to large diameter gas, steam flow measurement, etc.Easy installation, no pipe design. more
LUGB Flow Instrumentation Vortex Flow Meter The vortex flowmeter is a speed type flow instrument which has a wide range of uses. It is suitable for flow metering, measurement and control of liquids, steam and most gases. more
■Microelectromechanical chip processing technology
■Large range ratio, high sensitivity, high precision
■Multiple structures, multiple signal outputs
Product Origin:
ChinaShipping Port:
Huangpu portLead Time:
3~5 Working DaysMOQ:
1overview
The MEMS gas mass flowmeter is an intelligent all-electronic gas mass flow meter developed by the company using micro-electromechanical system (MEMS) flow sensor chip technology and computer adaptive technology. The main technical performance is at the international leading level. High sensitivity, high precision, and large range ratio. For industrial environments, MEMS gas mass flowmeters incorporate a variety of electromagnetic compatibility design with anti-jamming measures, and have a variety of signal outputs, enabling network management functions through communication interfaces: this product also has its performance, installation and maintenance. Unique advantages, can be widely used in petroleum, gas, chemical, smelting, energy and other fields.
Product features
■With the microelectromechanical system chip processing technology, large-scale integrated circuit production technology and material processing technology, the size of the sensor is reduced to the micron level, so that the sensitivity of the flowmeter is greatly improved.
■Multi-sensor integration is realized on a single chip, which greatly improves the range ratio of the flowmeter.
■Combined with the microcomputer intelligent technology of the secondary instrument, the flow meter has better repeatability and realizes accurate and reliable measurement.
■The structure simplification brought by the technical progress makes the flowmeter greatly reduce the pressure loss and reduce the energy consumption compared with the traditional mechanical instrument.
■LCD display instantaneous flow and cumulative flow, clear and intuitive, easy to read.
■Product integration of electromagnetic compatibility design technology, with high anti - interference ability.
■The flow meter with RS485 communication module, with the upper computer network can achieve centralized management.
■Optional 4~20mA standard current signal output.
■Some products have passed the national explosion-proof certification, marked as Ex ia llC, ExdllCT4.
Measuring principle
Microelectromechanical system (MEMS) sensing technology, the chip is integrated on the silicon chip has mechanical and electrical characteristics of micron level sensor, it is not simply to miniature mechanical and electrical function on a chip, but only made with modern materials technology and large scale integrated circuit technology for the combination of new mechanical and electrical characteristics of MEMS chip can obtain some macro mechanical and electrical device cannot reach.
At the same time, due to the use of multi-sensor and micro-heat source technology, it has excellent zero point stability, short response time and large range and other characteristics.
LKM blood series gas mass flowmeters are mainly composed of power supply module, MEMS flow sensor chip, signal processing module, A/D conversion module, EEPROM memory, PTC real-time clock module and display module, as shown in the flow meter principle block diagram (figure 1).
LKM is made by using the heat transfer effect of flowing fluid to change the temperature distribution of measured capillary wall.
The mass flow rate of the gas can be measured by using the principle of capillary heat transfer and temperature difference calorimetry, which is not affected by the temperature and pressure in a certain range. The expected value of the flow rate measured by the sensor is equal to that determined by the flow detection. The diverter generates a stable laminar flow state between the main channel and the capillary to adjust the flow rate through the flow controller.
FS1015CL series gas mass flow sensor is specially designed for the measurement and process control of various kinds of medical gases. The product is made of the microcomputer system (MEMS) flow sensor chip developed by our company, which is suitable for all kinds of clean gases.Low cost, easy to install, no need of temperature pressure compensation, can replace the volume type or pressure difference type of traditional flow meter.The measurement range is up to 150SLPM, and the ISO 15mm connection mode is applicable to various medical equipment such as ventilator and anesthesia machine.
FS4001 series gas mass flow sensors are specially designed for the measurement and process control of various low-flow gases.This series of sensors are manufactured by microelectromechanical system (MEMS) flow sensor chip developed by our company.Suitable for all kinds of clean and dry gases.
FS4003/08 series gas mass flow sensor is specially developed for common gas flow measurement.The sensor can directly measure gas mass flow without bypass setting and low pressure loss.The sensor can be used for flow monitoring of air or nitrogen in the purification industry, as well as for environmental detection industry (such as atmospheric sampler) and analytical instrument (such as chromatographic analyzer).
FS5001B series gas mass flow sensor is specially designed for the measurement and process control of various types of low-flow gas. All of these sensors are made by the microcomputer point system (MEMS) flow sensor chip developed by our company, which is applicable to various clean and dry gases.The sensor adopts label installation, which makes the installation size more compact, and can easily realize multi-sensor integration in small space.
FS6122 series medical CPAP sensor module is designed for the CPAP system of domestic ventilator (continuous positive pressure ventilation system).The sensor integrates MEMS mass flow chip and MEMS pressure chip, thus providing the necessary output signal for CPAP system.
MF5806-G series MEMS intelligent gas cylinder flowmeter based on proprietary MEMS sensor technology and Internet of things technology provides a complete solution for the filling, storage, transportation and use of gas cylinders.
The FS7002 mass flow rate/anti-blockage sensor is made by using the microcomputer electrical system (MEMS) flow sensor chip independently developed by our company, which is suitable for cleaning and drying gases of various general purposes.Unique packaging technology enables it to measure flow in different ranges under the same pipe diameter, mass production to ensure high reliability, high performance and low cost.
• Flow Range: FS8001:(0~500)sccm;FS8003:(0~6)SLPM • Accuracy: ± (2+0.5FS) • Repeatability: ± 1.0 • Output: Linear:analog voltage0.5~4.5VDC/I²C • High sensitivity • Low pressure drop • Miniature design for easy installation
MF4000 series gas mass flowmeter is specially designed for measuring the flow of low-speed airflow in gas pipelines with pipe diameter of 3mm-8mm. Thread and various quick interfaces can easily realize mechanical interface conversion and meet the requirements of various gas pipelines of users. This product can be used for various industrial applications such as process control and atmospheric sampling.
ME5000 series gas mass flowmeter is the company combined with micro-electromechanical system (MEMS) flow sensor chip technology and many years of computer adaptive technology experience, the development of intelligent electronic gas mass flowmeter, the main technical performance in the international leading level, with high sensitivity, high precision, large range ratio and other characteristics.
MF5100 series gas mass flow meter has the function of gas recognition. It can work for a long time with battery power supply, display instantaneous and cumulative flow, and provide impulse signal. In the condition of external power supply, it can also output RS485/4-20mA /o~5Vdc and other signals.
MF5200 series oxygen mass flowmeter is specially designed for the hospital center oxygen supply system.The flowmeter has detachable display, RS485 network communication interface and user-defined alarm function to better achieve network transmission and traffic monitoring.
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