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Nguyên lý đo lưu lượng trong ống cống và sông, kênh, rạch
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Open Channel Flowmeter UVH-2000
Doppler Technology For Sewage, Wastewater or Industrial Effluents.
Accurate and stable flow measurements for open channels with Ultrasonic Pulse Doppler technology. The UVH-2000 measures velocity of flow which contain fine particles or slurries such as sewage and wastew
The UVH-2000 velocity meter employs Pulse Doppler technology, which provides flow velocities at multi-points on the ultrasound beam and an ultrasonic level gauge, which provides non-contact liquid level measurement.
The UVH-2000 is suitable for applications such as maintenance and flow management of industrial effluents, public utilities, sewage plants and sewage systems.
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Specifications
Measurement Method Flow velocity: Ultrasonic Pulse Doppler
Fluid level: Ultrasonic Pulse Transit Time
Fluids Sewage, waste water, Industrial Effluents, or other Fluids with suspended matters Fluids or small bubbles which reflect ultrasonic waves with a free water surface (turbidity, approx. 60~50,000 mg/L)
Fluid Temperature 0 ~ +40℃
Applicable open Channel Open channels: Rectangular, Circular, etc. Closed Conduit
Dimensions of Circular type: Inner diameter φ250 ~ 5000mm
Dimensions of Rectangular. Width 250 ~ 5000mm
Measurement Range Flow velocity: -5 ~ +5 m/s
Water level: 0 ~ 5000 mm
Measurement Accuracy Within ±3% of Full Scale
Main Unit Display LCD: 16 x 16 Characters
Displayed items: Flow rate/ Totalized Flow/ Flow Velocity/ Water Level,
Measurement Units. and Functions (at configuration)
Power Supply AC90 ~ 132V, 180 ~ 264V, DC19 ~ 29V
Power Consumption Approx. 38VA (AC100V), approx. 58VA (AC240), Approx. 24W (DC24V)
Output Signals Flow Rate: 4 ~ 20 mA DC (allowable resistance: less than 750Ω)
Totalized Flow: Photo MOS Relay (Insulated)
Flow Velocity: 4 ~ 20 mA DC (allowable resistance: less than 750Ω)
Water Level: 4 ~ 20 mA DC (allowable resistance: less than 750Ω)
Flow Velocity Meter Malfunction Warning: Photo MOS Relay (Insulated)
Level Gauge Malfunction Warning: Photo MOS Relay (Insulated)
Forward Flow Reverse Flow Discrimination: Photo MOS Relay (Insulated)
Ambient Temperature -10 ~ +50℃.
Ambient Humidity Less than 90% RH (non-condensation)
Main Unit Weight Approx. 16kg
Main Unit Dimensions W332 x H520 x D170 (including mounting bracket)
Options Multi Path Flow Velocity Measurement: Max. 4 Paths
Level Measurement: Radar Level Gauge
![](https://www.tokyokeiki.jp/Portals/0/images/products/db/ryutai/uvh-2000a.gif?1112)