Lightweight, high accuracy, good repeatability, responsive turbine flowmeter

LWY Series turbine flowmeter has a simple structure, lightweight, high accuracy, good repeatability, responsive, installation and maintenance easy to use features. Typical applications for water, diesel fuel, methanol and other no impurities, no strong corrosive liquid, if there are special features and display instrument can also be quantitative control, excessive alarm is ideal for flow measurement and energy meter. Features 1, sensor carbide bearing push stop, not only to ensure accuracy, improve wear resistance, and has a simple structure, strong and easy accessibility features 2, a variety of transmitter models: three-wire pulse output; two wire 4 ~ 2OmA current output; site display and output 4 ~ 2OmA; battery-powered, etc., for different occasions 3, intelligent processing: multi-point non-linear meter factor correction to ensure full scale precision 4 meter factor, totalizer retentive, ten years is not lost works fluid flow through the sensor housing, the dry flow impeller blades and angled fluid momentum of the blade has a rotational torque to overcome the friction torque and fluid resistance after the blades rotate, the moment After equilibration speed and stability, under certain conditions, the velocity is proportional to the rotational speed, since the blade has a magnetic permeability, which is in the signal detector (composed of a permanent magnet and coil) of the magnetic field, the magnetic lines cutting blade rotates, periodically changing the coil of the magnetic flux, so that the ends of the coil induces an electrical pulse signal which is amplified shaping amplifier is formed with a certain level of continuous rectangular pulse wave, can be remote to the display instrument, showing the instantaneous flow of fluid or total. In a certain flow range, pulse frequency f of fluid flowing through the sensor (instantaneous flow rate Q) is proportional to the flow rate is calculated as follows: the basic performance parameters measure liquid medium (304 or 316 stainless steel, 2Cr13 steel or nickel and corundum Al2O3 not corrosive mm diameter threaded connection 4,6,10,15,20,25,32,40 flange connection (25), (32), (40), 50,65,80,100,125,150, 200 (DN25-40 conventional threaded connection, flange connection to be special order) Accuracy class 1, 0.5 (a particular segment of traffic up 0.2) Repeatability ± 0.2% of indicated value Medium temperature -20 ℃ ~ + 120 ℃ Ambient temperature: -20 ℃ ~ + 55 ℃, humidity: 5-95% Protection class IP67 Explosion levels ExmⅡCT6 ExdⅡBT6 12VDC 24VDC power supply or battery-powered (3.2V 10AH) output signal pulse output voltage amplitude: high ≥8V, Low ≤0.8V transmission distance ≤1000 meters standard current 4-20mA DC straight pipe downstream of the flowmeter upstream ≥20DN ≥5DV measuring range and nominal diameter DN mm normal measurement range m3 / h extended flow range m3 / h General Nominal pressure MPa high-pressure type pressure MPa 4 0.04-0.25 0.04-0.4 6.3 25 6 0.1-0.6 0.06-0.6 6.3 25 10 0.2-1.2 0.15-1.5 6.3 25 15 0.6-6 0.4-8 6.3 25 20 0.8-8 0.45- 25251-10 0.5-10 9 6.3 6.3 (flange 4.0) 2532 6.3 1.5-15 0.75-15 (flange 4.0) 25402-201-20 6.3 (flange 4.0) 25504 -402-40 2.5 25657-704-70 8010-1005-100 2.5 25 2.5 2.5 2510020-200 2512525-250 10-200 13-250 15-300 2.5 2515030-300 1.6 16 200 80-800 40-800 1.6 16 LWQ series gas turbine flowmeter flow meter is learned at home and abroad advanced technology optimized design, a combination of gas mechanics, fluid mechanics, electromagnetic theory and developed its own particular LWQ -D series set temperature, pressure, flow sensors and intelligent flow totalizer in one of the new generation of high-precision, high reliability gas precision measuring instruments having excellent low and high pressure measurement of performance, as well as a variety of signal output fluid low sensitivity disturbances, widely used in the measurement gas, coal gas, liquefied petroleum gas, light hydrocarbon gas and other gases. Product features using the new sensors, low starting flow, pressure loss, anti-vibration and anti-pulsating flow of good performance, easy corrosion, good reliability, long service life. High and high-performance microprocessors using the new integrated chip, the precision, the whole powerful, superior performance. The use of advanced micro-power high-tech, low power consumption machine. That can be battery-powered long run, it can be operated by an external power supply. Press the flow frequency signals can be divided eight automatic meter factor linearity correction, the instrument may need to improve the accuracy of the user. . Uses EEPROM data storage technology, with historical data storage and query capabilities, and three historical data recording modes to choose from. Flowmeter meter head can be rotated 180 degrees, installation is simple and convenient. High accuracy, usually up to ± 1.5% R, ± 1.0% R0. Repeatability is good, short-term repeatability of up to 0.05% to 0.2%, it is due to good reproducibility, in trade settlement is the preferred flow meter basic parameters meter diameter (mm) and connections 25,40,50 , 25,40,50 65,80,100,125,150,200,250,300 flange connection, can be screwed ± 1.5% accuracy class meter Material Body: 304 stainless steel or cast aluminum converter: Aluminum Impeller: ABS or high-quality aluminum corrosion conditions Medium temperature: -20 ℃ ~ 80 ℃, humidity: 5-95% Ambient temperature: -30 ℃ ~ 60 ℃, atmospheric pressure: 80kpc-106kpc Power supply external power supply: + 24VDC, suitable for 4-20mA output, pulse output, RS485, etc., the whole power consumption <1W power inside: Group 1 3.6V10AH lithium battery, no signal output, average power consumption ≤1W, can be connected to the use of more than three years. Signal line connected internally threaded M20 * 1.5, or other proof grade ExiaⅡCT4 or ExdⅡBT6 protection IP65