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TUF Ultrasonic Open-Channel Flowmeter
The instrument controls the sensor to transmit ultrasonic signals toward the water surface. The ultrasonic waves are reflected by the water surface and received by the sensor. Based on the round-trip travel time of the ultrasonic signal, the instrument calculates the distance between the sensor and the water surface and, combined with the installation height, determines the liquid level (in meters). The measured level is then converted into the corresponding flow rate using a preset level–flow relationship table, with the output expressed in liters per second or cubic meters per hour.
Product Application
● Outflow channels of wastewater treatment plants
Key words:
Classification:
- 产品描述
- Product Features
- Performance Index
- Field Application
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- Non-contact measurement: The sensor does not come into contact with the fluid, avoiding corrosion and fouling from wastewater; resistant to acids, alkalis, and corrosion, and can operate reliably in humid environments for long periods.
- Direct flow measurement: Can be used directly to measure flow in open channels.
- High adaptability: Compatible with various weirs, including V-notch, trapezoidal, and rectangular weirs.
- Built-in flow–level tables: Common flow–level relationships are preloaded, allowing for immediate use.
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Parameters
Details
Measurement Range
10 L/s ~ 10,000 L/s (determined by the specifications of the corresponding flow weir)
Cumulative Flow
8-digit decimal, automatically resets to zero after reaching 8 digits
Level Range
0.4 ~ 2 m (0.4 m from the probe bottom is a blind zone; measurement range is 0.4 ~ 2 m)
Blind Zone
0.4 m
Resolution
0.001 m
Accuracy
±5% (uncertainty of 1–3% for the corresponding flow weir, plus 1–2% instrument measurement error)
Distance Measurement Accuracy
±3 mm (calibrated within a 1 m range)
Repeatability
±0.1%
Temperature Compensation
Automatic
Digital Communication
RS485, Modbus RTU protocol
Analog Output
Isolated 4–20 mA
Relay Output
SPDT, closes once per cumulative preset m³; optional liquid level alarm, upper limit, and lower limit alarms
AC Power Supply
220 V ±10%, 6 W (26 W during semi-heated operation)
DC Power Supply
12 V ±2 V, 85 mA (no 4–20 mA output or relay operation when using DC)
Material
Transmitter: PC
Sensor: ABS housing
Cable
Standard 25 m; can extend up to 200 m in use; specify if over 200 m is required at ordering
Protection Rating
Transmitter: IP66
Sensor: IP68
Operating Temperature
-20 ~ 55℃
Related Information
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Tengine Innovation (Beijing) Instruments Inc.
Email: contact@tengine.com.cn
WhatsApp: +86 133 3109 8301
Address: Floor 6, Building 8, Yard 1,
Nongda South Road, Haidian District, Beijing
Copyright©2022 Tengine Innovation (Beijing) Instruments Inc.
Copyright©2022 Tengine Innovation
(Beijing) Instruments Inc.