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Ultrasonic flow meter
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LQM830 series ultrasonic flowmeter adopts advanced integrated circuit design, which combines the threshold comparison gate circuit delay method and high-speed ADC correlation method, so that the flow meter can adapt to the environment of industrial field, and the measurement is more convenient, economical and accurate.
Measuring principle:
The ultrasonic waves are alternately received/transmitted after traversing the fluid in the pipe at an oblique angle. When the ultrasonic wave passing through the water is opposite to the flow direction of the water, the propagation speed will be slower; on the contrary, when the flow direction of the water is the same, the propagation speed will be faster. The propagation time difference between the two ultrasonic waves is converted into a flow rate.
Ultrasonic flowmeter and electromagnetic flowmeter, because the instrument flow channel is not set up any obstacles, are no obstruction flowmeter, is suitable for solving the problem of flow measurement of a class of flow meter, especially in the large diameter flow measurement has more prominent advantages. It can not only measure the medium flow of large pipe diameter, but also can be used to measure the medium that is not easy to contact and observe. Its measurement accuracy is very high, almost free from the interference of various parameters of the measured medium, especially to solve the problem of flow measurement of strong corrosive, non-conductive, radioactive and flammable and explosive media that other instruments cannot.
Product features:
1. The unique sound wedge material of the key component of the sensor ensures stable and reliable measurement
2. The measurement is not affected by the thermophysical parameters such as temperature, pressure, viscosity and density of the measured fluid, which can measure the flow rate of strong corrosive medium and non-conductive medium.
3, innovative calculation methods, measurement values are more accurate.
4. A pair of sensors can realize DN25-DN1200mm full-caliber measurement without additional selection
5. Pipe-type and plug-in installation are optional, simple and beautiful to install
6. The sensor signal cable can be extended to 300 meters to ensure signal transmission
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Model: LQM830 Flow rate range 0.03~12m/s Accuracy ± 1% reading, ± 0.5 reading (customizable) Pipe diameter range 25mm~1200mm Pipe Carbon steel, stainless steel, PVC Output Pulse output: 0~10KHz; current output: 4-20mA, maximum load 750Ω Digital Communication RS232/485 interface, support MODBUS protocol Power 24VDC or 220VAC Environment Ambient temperature:-20~60 ℃; medium temperature: 0~80 ℃ Host material ABS plastic Protection level Host: IP65; Sensor: IP68 Cable 10m