Flow meter manufacturer from China（Kaifeng AFT Instrument Co.,ltd)

In the field of mechanical thermal processing, temperature test and control technology is very important to ensure the quality of electromagnetic flowmeter. With the progress of technology, the domestic temperature measurement and control equipment manufacturing level has made significant progress, some manufacturers have formed their own product characteristics and advantages. Temperature is an important physical quantity, in the modern industrial production process, such as temperature, pressure, flow, level and rotational speed and other physical quantities must be strictly measured and controlled. The temperature in each physical quantity is the most, it is estimated to occupy more than 50% of the total, so temperature measurement is an important subject. With the development of microelectronics and computer technology, instrumentation (two meters) has been developed rapidly. such as the domestic production of digital instrumentation precision of 1 per thousand, reliability 60,000...

1. precision grade and function    according to the measurement requirements and use of the instrument to select the accuracy of the meter, to achieve economic cost. For example, for trade settlement, product handover and energy metering occasions, should choose a higher level of precision, such as 1. Level 0, 0. Level 5, or higher level; For process control occasions, according to the control requirements of the selection of different precision grades; some just check the process flow, no need to do precise control and measurement of the occasion, you can choose a slightly lower precision level, such as 1. Level 5, 2. Level 5, even 4. Level 0, at which point the low-cost insertion of the electromagnetic flowmeter can be selected.   Different types of electromagnetic flowmeter function difference is also very large, simple can only measure one-way flow, some only output analog signals, multi-function can be two-way flow measurement, range switching, upper and lower alarm,...

External magnetic structure transmitter due to the stainless steel tube eddy Current loss caused by the adverse consequences: the excitation current increased, active power increased a lot, the measurement tube of eddy current loss increased a lot, than the total loss of the measurement tube is much larger. The angle of phase difference between voltage and current becomes smaller. The performance of the transmitter and the stability of the complete set of instruments are disadvantageous. When the transmitter's caliber is larger, the loss is greater and the phase angle becomes smaller, due to a greater difference between the current of the loss and the flux (including the flow signal). With you this excitation system has a large impact on the current parameters of the measurement tube. In order to improve the performance, the large-aperture electromagnetic flow transmitter adopts the internal magnetic structure. The so-called internal magnetic structure refers to the transmitter...

HNLDB series explosion-proof electromagnetic flowmeter using the latest technology in the world. Using constant current low frequency three-value rectangular wave or double frequency rectangular wave excitation, the advantages of the existing rectangular wave magnetic field, and overcome the shortcomings of the sine wave magnetic field, can also eliminate the power supply voltage fluctuation, power frequency changes and excitation coil impedance changes caused by the error, and has excellent 0-point stability and is not affected by the noise of the fluid. It has the characteristics of high stability and high reliability. Explosion-proof electromagnetic flowmeter measurement principle is based on Faraday law of electromagnetic induction, explosion-proof electromagnetic flowmeter consists of sensors and converters, sensors installed in the measurement pipeline, the converter can be connected with the sensor combination of the integrated electromagnetic flowmeter, the converter is install...

The GR series pipeline electromagnetic flowmeter measurement principle is based on Faraday electromagnetic induction law, the pipeline electromagnetic flowmeter consists of sensors and converters, sensors installed in the measurement pipeline, the converter can be connected with the sensor combination of the integrated electromagnetic flowmeter, The converter is installed in 30 meters away from the sensor or within 100 meters of the occasion, between the two by shielding cable connection known as separation type electromagnetic flowmeter. The GR pipeline electromagnetic flowmeter is used to measure the flow of conductive fluids in water, steel, petroleum, chemical, electric power, industry, Water Conservancy, hydrology and other departments, and can also measure corrosive conductive liquids such as acid, alkali and salt. The electromagnetic flowmeter works based on Faraday's law of electromagnetic induction. In the electromagnetic flowmeter, the conductive medium in the measuring t...

Volumetric Flowmeter (PD) The PD flowmeter is used to measure the volume velocity of a liquid or gas, which introduces the fluid into the metering space and calculates the rotational times. The impeller, gear, piston or orifice plate are used to shunt the fluid. PD Flowmeter is one of several methods to measure viscous liquids with high accuracy. But it also produces unrecoverable pressure errors and the need for moving parts. Turbine flowmeter When the fluid flows through the turbine flowmeter, the fluid rotates the rotor. The rotational speed of the rotor is related to the velocity of the fluid. The flow rate or total amount is deduced through the average flow velocity of the fluid which is felt by the rotor. The turbine flowmeter can accurately measure clean liquids and gases. Like PD flowmeter, the turbine flowmeter also produces unrecoverable pressure errors, and also requires moving parts. Electromagnetic flowmeter When a conductive fluid flows through an electromagnetic field, t...

The present situation and trend of partial discharge tester is an indispensable instrument in industrial production. China's vast territory, industrial types complete, so the level of the demand for instrumentation is very large. In the "XV" period, about 75,000 ~8.0 per year, this is a big market, competition is very fierce. Domestic level instrument manufacturers numerous, but mostly technical content is lower, lower prices of products, sales of many, but the value is not high. High-grade modern new instruments are mostly imported, especially for large enterprises with the level of instrumentation are basically imported instruments, even pressure or differential pressure level meter is also used in the radar level meters are imported or joint venture pressure or differential pressure transmitter. Therefore, the development, production high-grade advanced level instrument is still occupy the domestic level instrument market key. The following specific analysis of various...

The acoustic flowmeter is a non-contact instrument which has been applied in recent years, which is suitable for the fluid and large diameter flow which is not easy to be contacted for measuring and observing. The flow measurement of open flow can be carried out by linkage with water level meter. The use of ultrasonic flowmeter than not in the fluid to install the measuring elements so that the flow of fluid will not change the state, no additional resistance, installation and maintenance of instrumentation can not affect the production line operation is an ideal energy-saving flowmeter. At present, industrial flow measurement generally exists the problem of large diameter and big flow measurement, which is because the general flowmeter will bring difficulties in manufacturing and transportation with the increase of measuring pipe diameter, the cost increase, the energy loss increase, installation not only these shortcomings, ultrasonic flowmeter can be avoided. Because all kinds of ul...

1.Measurement method of natural gas flow China's natural gas measurement is usually expressed in volume, the statutory unit is cubic meters. The standard state of natural gas flow measurement in China is: absolute pressure is 0.101325MPa, temperature is 23.15 ℃. Natural gas flow metering methods are many, available flow meters are also many, according to the principle of work is roughly divided into: differential pressure flowmeter, volumetric flowmeter, Speed type Flowmeter 3 types. In terms of measurement standards, the world's most national standards of measurement gradually to the IS05167 "with the hole plate to measure the flow of fluid filled with circular tube," China's natural gas measurement standards are also revised to sy/t6143-1996 "natural gas flow standard orifice measurement method." 2. Survey of automatic metering of orifice-plate flowmeter The so-called automatic metering, is to use the transmitter real-time detection of natural gas flow...

The existence and development of electromagnetic flowmeter has three advantages, such as market, human resource and Industry Foundation, and China's instrumentation industry is cultivating and has already appeared with this scale and ability of enterprises. Chinese instrumentation enterprises will not only be limited to the current comparative advantage to the middle and low product areas of development, the industry's outstanding enterprises have been able to make breakthroughs in some high-tech areas, breaking the foreign and imported products eminence, almost monopoly situation. On the one hand, give full play to the industry comparative advantage, consolidate and expand the status and achievements in the general product field, on the other hand, in scientific instruments and test control high-tech areas to make breakthroughs, narrowing the gap is the development of domestic enterprises. Welcome to our website:  http://www.aft-flowmeter.com

HNLD Series Electromagnetic flowmeter measurement principle is Faraday law of electromagnetic induction, the main components of sensors are: measuring tubes, electrodes, excitation coils, iron core and magnetic yoke shell. The electromagnetic flowmeter is mainly used to measure the volume flow in the conductive liquid and slurry in the closed pipe. including acid, alkali, salt and other strong corrosive liquid. Electromagnetic flowmeter is widely used in petroleum, chemical, metallurgy, textile, food, pharmaceutical, paper and other industries as well as environmental protection, municipal management, Water conservancy construction and other fields. Product Features: 1.The measurement is not affected by the change of fluid density, viscosity, temperature, pressure and conductivity; 2. No obstruction flow parts in the measuring tube, no pressure loss, low requirement of straight pipe; 3. Series Nominal path dn15~dn3000. Sensor lining and electrode materials have a variety of options; 4....

There are many types of sensor structures in the turbine flowmeter, here are several widely used types: 1, thrust-type turbine flow sensor: The structure of such products using plane or ball point contact, contact points and sensor axes coincide, point contact advantage is that the friction moment is very small, can be used for lower lower limit flow, but large flow wear seriously. The bearing is flat type. This type of structure is only used for small-caliber (dn≤15mm) sensors, and it is characterized by its high sensitivity. 2, reverse-push turbine flow sensor: The reverse-push structure within a certain flow range can make the impeller in the floating state, there is no contact point, no reason surface friction and wear, can prolong the use of time. 3, tangential-type turbine flow sensor: for micro-flow measurement of the turbine flow sensor. The fluid flows from the tangential direction of the impeller, impacting its blade rotation. Because the measured flow is small, in order to i...