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| add time： | 2016-01-16 17:12:18 |
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Ultrasonic flowmeter in flow meter is a non full open tubular channel measurement of free surface flow in nature. Non full pipe flow of water called open channel, open channel flow measurement of water flow in open channel flowmeter. Open channel flowmeter except the circular and U shape, trapezoidal, rectangular and other shapes.
Open channel flowmeter application field all the urban water diversion canal; thermal power plant water diversion and drainage, sewage treatment flow and drainage; industrial and mining enterprises water discharge and water conservancy projects and agricultural irrigation channels.
Product features
1, can measure the non full tube (round tube, egg shaped tube or other shaped tube) flow
2, can be measured channel (circular canal, rectangular canal or other shaped canal) flow
3, can measure the natural river, stream flow
4, can be measured sewage discharge channel or pipe (sewer) flow
5, can be measured forward and reverse flow rate and flow
6, can provide instantaneous flow value and cumulative flow value
7, the output signal: RS-485, Modbus, 4-20Ma current signal and multi-channel switching
8, the sensor can be in the worst of the field and the long-term work of sewage water quality
9, optional short message or GPRS wireless module to achieve remote telemetry
10, the sensor housing for polycarbonate, protection class IP68
11, built-in automatic temperature compensation
12, blind area can be adjusted, shielded probe near the interference signal
In many non full of water, high flow (or flow), the natural flow of free water surface state measurement of fluid flow and predicate in open channel flow detection. Due to the open channel flow is bigger or smaller, fluid tend to have certain corrosion or entrained impurities, using general pipe flowmeter flow detection is very difficult. Such as in the field of industrial enterprises drainage, hospital wastewater, agricultural irrigation, urban sewer drainage, open channel flow detection especially ultrasonic non contact type open channel flow meter for the preferred traffic detection instrument.
Ultrasonic open channel flow meter and the corresponding Parshall flume equipped with uses ultrasonic propagation in the air to measure liquid level, and continue the level information transmission to the host, host through the operation system, automatic measure instantaneous flow and cumulative flow and storage. The instrument adopts the international advanced technology and fluid can complete the flow detection, and has a sound level measurement function, control function, data transmission function and man-machine communication function. This machine is a set of ultrasonic receiving sensor, servo circuit, temperature compensation sensor and compensation circuit unit, integrating host, monitor, control signal output and serial data or analog output unit for various flow measuring instruments.
In industrial field, the measurement of fluid flow meter is called flow meter or flow meter. Flow meter is one of the most important instruments in industrial measurement. With the development of industry, the accuracy and the range of flow measurement requirements more and more high, in order to adapt to a variety of purposes, various types of flowmeters appeared, widely used in petroleum and natural gas, petrochemical, water treatment, food and beverage, pharmaceutical, energy, metallurgy, pulp and paper, and building materials industries.
