Abstract: the scale vortex precession flowmeter installation and maintenance method of information produced by excellent flow meter, flow meter manufacturer to offer you the quotation. Precession vortex flow meter installed if maintain undeserved, not only affects the accuracy of measurement, serious when still can make the instrument damage: at the time of move precession vortex gas meter, sling should be set in the flowmeter at the ends of the flange neck position, do not under test. More flow meter manufacturers choose model price quote you are welcome to inquire, here is a scale vortex precession flowmeter installation and maintenance methods of the article details. Precession vortex flow meter installed if maintain undeserved, not only affects the accuracy of measurement, serious when still can make the instrument damage: at the time of move precession vortex gas meter, sling should be set on the flowmeter at the ends of the flange neck position, do not set in the measuring tube into the tube rods for hoisting, in order to avoid damage to the lining, also should prevent precession vortex flow meter connector socket damaged by collision. Must guarantee the precession vortex gas meter center and the center of the process piping is consistent, and good grounding line, otherwise it will cause error. Vortex precession flowmeter no mechanical moving parts, small size, corrosion resistance, stable performance; Can be directly display medium work pressure, temperature, flow rate of gas as well as standard conditions; The advantages of small span a wide range, the measurement error, has been widely used in oil and gas well production measurement and gas sales. In years of field application, we think the flowmeter zui suitable for relatively clean dry gas metering, gradually become the first measurement instrument of small and medium-sized gas metering. To guarantee the accuracy of the vortex precession flowmeter measurement, reduce the measurement error. Precession vortex gas meter generally does not need daily maintenance, but easily measured medium in the electrodes and the measurement of pipe wall adhesion or scaling, must be clean regularly measuring tube wall and electrode, pay attention to don't make lining, electrode is damaged. A failure occurs when the precession vortex gas flowmeter, please refer to the following reasons one by one to find, analyze reasons and troubleshooting. 1, whether full tube inside the pipeline, lining and whether scaling on the electrode. 2, all the cable connection is reliable. 3, whether meet the grounding requirements. 4, whether magnetic coil short circuit or open circuit, its whether the insulation to earth. 5, a leaky pipe, upstream and downstream of the valve whether have influence, installation location. Above is all there is in this article, you are welcome to inquire me manufacturer flowmeter selection, quotation, etc.
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Abstract: the characteristics and selection of split type electromagnetic flow meter scale information produced by excellent flow meter, flow meter manufacturer to offer you the quotation. Split type electromagnetic flowmeter measurement principle is Faraday's law of electromagnetic induction, main components are: split type sensor measuring tube, electrode, excitation coil, magnetic yoke iron core and shell. Split type electromagnetic flowmeter is mainly used for measuring conducting fluid in the closed pipeline. More flow meter manufacturers choose model price quote you are welcome to inquire, here is a split type electromagnetic flow meter scale characteristics and selection of articles for details. Split type electromagnetic flowmeter measurement principle is Faraday's law of electromagnetic induction, main components are: split type sensor measuring tube, electrode, excitation coil, magnetic yoke iron core and shell. Split type electromagnetic flowmeter is mainly used to measure volume flow of conducting liquid and slurry in the closed pipeline. Including acid, alkali, salt and other corrosive liquids. The products are widely used in petroleum, chemical, metallurgical, textile, food, pharmaceutical, paper making industries and environmental protection, municipal administration, water conservancy construction and other fields. Product introduction: 1, the measurement is not affected by fluid density, viscosity, temperature, pressure and conductivity change 2, the influence of the measuring tube unimpeded flow components, no pressure loss, straight pipe required lower 3, the series of nominal diameter DN15 ~ DN3000. Sensor lining and electrode materials have many choice 4, converter adopts novel excitation method, low power consumption, zero point stability, high precision. Flow range up to 1500:15, converter and sensor type or separation of a size 6, converter adopts 16-bit high-performance microprocessors, 2 x16lcd display, parameter setting is convenient, reliable programming 7, flow meter to measure the size of the system, two-way within three integrator: forward, reverse the amount and total amount of difference; Zhuang, reverse flow, and have a variety of output: current, pulse, digital communications, HART8, converter using surface mount technology ( SMT) , has self-check and self-diagnosis function product features: 1, suitable for electrical conductivity is greater than 5 ц s/cm 2, measure the volume of a conductive fluid flow measurement tube no activity and choke parts, small pressure loss 3, lining with different material and electrode has good anti-corrosion performance of 4, from the medium, the density, viscosity, temperature, pressure and the influence of the conductivity 5, low-frequency rectangular wave excitation, susceptible to interference resistance, stable and reliable to 6, converters, low energy consumption, easy and convenient installation, the user does not need to debug technical parameters: 1, precision grade: & plusmn; 0. 5%,± 1% 2, lining material: polyurethane, chloroprene rubber, ptfe, etc. 3, electrode material: stainless steel, hartz alloy, titanium, platinum iridium alloy, etc. 4, connection mode: flange clamp outfit, flange connection, etc. 5, medium temperature: 0 ℃ ~ 70 ℃ and 0 ℃ ~ 130 ℃ ( 0℃～180℃） 6, nominal pressure: 1. 0 mpa ~ 32 mpa7, protection grade: IP65, IP688, explosion-proof marks: ExibBT49, working voltage: 220 vac, 24 VDC, 1 installation conditions, straight pipe upstream > 10 & times; DN2, downstream straight pipe > 5 & times; DN3, DN = sensor above the nominal diameter is all there is in this article, you are welcome to inquire me manufacturer flowmeter selection, quotation, etc.
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How to select ultrasonic flowmeter and electromagnetic flowmeter of Henan flowmeter manufacturer 1. Pipe-section ultrasonic flowmeter and pipe-section electromagnetic flowmeter 1. Medium ultrasonic flowmeter can measure conductive media, such as gasoline, diesel, alcohol, etc., but cannot be measured Strong acid and strong base. Electromagnetic flow meters can measure liquids with high conductivity, and can measure strong acids and alkalis. Cannot measure petroleum products and organic solvents, etc. 2. Accuracy (1) The accuracy of the monophonic ultrasonic flowmeter is 1.0, and the flow rate range is 0.25m/s—12m/s; the accuracy of the Henan electromagnetic flowmeter is 0.5, and the flow rate range is 0.5m/s—12m/s; Initial flow rate: ultrasonic flowmeter 0.03m/s; electromagnetic flowmeter 0.2m/s. Taking the DN600 caliber as an example, the accuracy of the ultrasonic flowmeter is 1.0, the minimum flow rate to ensure the accuracy is 305m/h, the accuracy of the electromagnetic flowmeter is 0.5508 m/h initial flow measurement, the ultrasonic flowmeter is 30.5 m/h initial flow measurement, electromagnetic flowmeter The flowmeter is 203 m/h, and the measurement with ultrasonic flowmeter will reduce leakage. 3. Repair and maintenance of ultrasonic flowmeter manufacturers If the pipe segment sensor fails, it only needs to replace the transducer after the water is cut off; if the electromagnetic flowmeter fails, the entire pipe body needs to be disassembled and repaired. 4. Regularly verify the online verification. It is recommended to invite professional measurement personnel from the local provincial metrology institute to use a high-precision portable ultrasonic flowmeter to perform on-site verification and correction every two years, which will not affect normal production and reduce the waste of manpower and material resources. 5. Cost budget Large-diameter pipeline ultrasonic flowmeters (mono) will cost less than electromagnetic flowmeters. 2. Pipe-segment ultrasonic flowmeter and insertion-type ultrasonic flowmeter 1. Installation and construction The installation of the pipe-segment-type flowmeter requires the installation of water and production. The insertion-type flowmeter can be installed under pressure; the installation of the insertion-type ultrasonic flowmeter needs to be drawn on the pipeline. Point drilling, welding, which may cause human error, segment sensors avoid this. 2. The maintenance and repair of the pipe-type flowmeter needs to stop the water and replace the transducer; the plug-in flowmeter can be replaced and repaired with water. 3. The pipe-type ultrasonic flowmeter has no on-site installation error, and the accuracy is higher than the plug-in ultrasonic flowmeter. Two-channel ultrasonic flowmeter and two-channel ultrasonic flowmeter 1. Two-channel ultrasonic flowmeter is more stable when measuring small flow and large flow, and is not prone to drift. 2. Two-channel ultrasonic flowmeter can realize one use and one backup Function, when one sensor fails, the other can work normally. 3. Accuracy of dual-channel ultrasonic flowmeter: 0.5 grade. Ultrasonic flow meters are susceptible to power disturbances. 2. The battery-powered flowmeter avoids the situation that the normal-powered flowmeter cannot work normally in the event of an accidental power failure. 3. The IP68 protection level of the battery-powered ultrasonic flowmeter host can be immersed in water, and it is more troublesome to replace the battery after the IP68 waterproof host. 4. Accuracy: The battery-powered ultrasonic flowmeter is one level more accurate than the normal-powered ultrasonic flowmeter. (The battery-powered protection class is IP68. The accuracy of the battery-powered wall-mounted type IP65 is the same as that of the normal-powered type. The battery-powered ultrasonic flowmeter of the IP65-grade wall-mounted battery-powered ultrasonic flowmeter is very convenient to replace the battery.)
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Abstract: The information on how to ensure the measurement accuracy of the intelligent vortex flowmeter during installation is provided by the excellent flowmeter and flowmeter production and quotation manufacturers. The intelligent vortex flowmeter is mainly used for the flow measurement of the medium fluid in the industrial pipeline, such as gas, liquid, steam and other media. No moving mechanical parts, so high reliability and low maintenance. Instrument parameters can be stable for a long time. Vortex flowmeters use piezoelectric stress. More flowmeter manufacturers choose models and price quotations. You are welcome to inquire. The following is the article details on how to ensure the measurement accuracy of the intelligent vortex flowmeter during installation. The intelligent vortex flowmeter is mainly used for the flow measurement of the medium fluid in the industrial pipeline, such as gas, liquid, steam and other media. No moving mechanical parts, so high reliability and low maintenance. Instrument parameters can be stable for a long time. The vortex flowmeter adopts piezoelectric stress sensor, which has high reliability and can work in the working temperature range of -20℃～+250℃. Vortex flowmeter is a new type of flowmeter with international advanced level, which is successfully developed based on the principle of Karman vortex flow. Because it has the incomparable advantages of other flowmeters, it has developed rapidly since the 1970s. According to relevant data, it has been widely used in various fields. It will dominate the flow instrument in the future, and it is the most ideal alternative to the orifice flowmeter. 1. Vortex flowmeters are calibrated one by one before leaving the factory. Since the outflow coefficient is calculated by the software, the final comparison calculated by the computer is different from the scene environment. Therefore, in order to ensure the measurement accuracy, it is recommended to Each flowmeter is calibrated in real flow, and the calibrated outflow coefficient is compared with the calculated result, and the difference is calculated and modified. 2. Modification of the Reynolds number, there is a positive relationship between the flow coefficient of the vortex flowmeter and the Reynolds number. When the mass fluid changes, the Reynolds number changes in inverse proportion, thus causing the flow coefficient to change. 3. The influence of temperature on the vortex flowmeter and its modification. The change of fluid temperature causes the change of density, which leads to the change of the relationship between differential pressure and flow rate. The modification of temperature change is to use the temperature instrument to measure the on-site temperature and then output it to the secondary instrument to modify the error caused by the temperature change. 4. Collapsible proofreading. When the vortex flowmeter measures the flow of steam and gas, the collapsible calibration of the fluid must be carried out. For the detailed calibration coefficient, please refer to the throttling installation design manual. 5. Calculation of steam mass flow, when the vortex flowmeter measures steam, the flow value is first obtained from the differential pressure signal, and then the density is obtained from the steam temperature and pressure values ​​to calculate the steam flow quality. Haines Automation Instrumentation is a professional manufacturer of electromagnetic flowmeters, turbine flowmeters, vortex flowmeters, magnetic flap level gauges, thermocouples, thermal resistances, bimetal thermometers and pressure gauges of various specifications, etc., as well as the production of various As a manufacturer of non-standard flowmeters, the company has advanced management level, modern professional production equipment, and accurate calibration devices. The above is the whole content of this article. You are welcome to inquire about the flowmeter selection and quotation of our factory. 'How to Ensure the Measurement Accuracy of Smart Vortex Flow Meters During Installation'
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The gas mass flowmeter consists of a gas flow quality sensor and a digital display integrator. The gas mass flowmeter adopts the American Microbridge gas flow mass sensor and pressure sensor. The airflow quality sensor is based on the heat transfer principle that the heat taken away by the airflow quality flowing through the sensor is proportional to its output voltage. The pressure sensor is that the pressure of the gas is proportional to the output voltage, that is, the gas mass flow and gas pressure are simultaneously converted into analog signal output. The function of the digital display integrator is to convert the airflow quality analog electrical signal output by the airflow quality sensor into a digital signal through the A/D inside the single-chip microcomputer. After calculation and processing, the mass flow rate of the gas is converted into the corresponding volume flow rate under the standard state or the mass flow rate under the standard state. After data processing and calculation, the real-time flow and cumulative flow are calculated respectively, and sent to four-digit and eight-digit digital tubes for display. The volume of fluid is a function of fluid temperature and pressure, and is a dependent variable, while the quality of fluid is a quantity that does not change with time, space temperature, and pressure. As mentioned above, the flow measurement values ​​of commonly used flowmeters, such as orifice flowmeters, turbine flowmeters, vortex flowmeters, electromagnetic flowmeters, rotor flowmeters, ultrasonic flowmeters and oval gear flowmeters, are fluid volume flow. The amount of fluid involved in activities such as scientific research, production process control, quality management, economic accounting, and trade transfer is generally mostly quality. Measuring only the volumetric flow rate of the fluid by using the above-mentioned flowmeter often cannot meet people's requirements, and it is usually necessary to try to obtain the mass flow rate of the fluid. In the past, the quality of the fluid could only be obtained indirectly through methods such as correction, conversion, and compensation after measuring the parameters of the fluid such as temperature, pressure, density, and volume.
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