Wuhan WTR Expert Technology Co., Ltd.
Doppler Ultrasonic Flowmeter
The SCJ-LL01 Ultrasonic Doppler Flowmeter is a device that measures the flow velocity of water bodies by utilizing the Doppler effect of ultrasonic waves. It integrates an internal signal processor and a proprietary flow velocity calculation algorithm, which can quickly and accurately calculate the flow velocity of water bodies. Moreover, it does not require calibration and has no drift.
Classification:
Contact:
Features
● Internal integrated pressure water level gauge, without external water level gauge, to achieve water level, flow rate, water temperature integrated monitoring;
● Standard RS485 interface, with a long communication distance.
● The flow rate range can be configured to achieve the best match between sampling accuracy and speed.
● The accompanying configuration program makes debugging and configuration simpler.
● High accuracy, and no drift, no calibration.
● IP68 waterproof grade to ensure the reliability of underwater work.
● Small in size, easy to install, less obstruction to water.
● It can be matched with our company's telemetry terminal to realize remote data transmission and provide a free platform to view data.
● Internal integrated pressure water level gauge, without external water level gauge, to achieve water level, flow rate, water temperature integrated monitoring;
● The handheld device and the sensor are wirelessly connected, free from the constraints of cables, making it more convenient for multiple people to operate;
● It is equipped with a built-in lithium battery and features a standard Type-c USB interface for connection to a computer or charging;
● With keyboard and LCD, easy to operate, intuitive reading, output results directly, no need for secondary calculation;
● High accuracy, and no drift, no calibration;
● IP68 waterproof grade to ensure the reliability of underwater work;
● Small in size, easy to install, less obstruction to water;
● The included carrying case and measuring rod facilitate convenient operation.
● The wireless acquisition module and cables can be directly mounted onto the measuring rod;
● The handheld device is connected to the sensor probe via wireless communication and can be hung on the body, freeing up both hands and preventing the handheld device from falling into water and getting damaged.
Parameter
| Parameter | Explanation |
|
Power supply |
DC12V /24V (DC 6-28V) standard DC12V |
|
Working current |
<45 mA @ DC12V 25℃ ① |
|
Working temperature |
0℃~60℃ |
|
Storage temperature |
-40℃ ~85℃ |
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Flow rate range |
0-12m/s (Settable range 0-4m/s;0-6m/s;0-8m/s;0-12m/s) ② |
|
Flow rate accuracy |
1% (1cm/s within 1 meter) |
|
Flow rate resolution |
1mm/s |
|
Water depth range |
0-10m |
|
Water depth accuracy |
±0.5% |
|
Water depth resolution |
1mm |
|
Water temperature range |
0℃~60℃ |
|
Water temperature accuracy |
±0.5℃ |
|
Waterproof grade |
IP68 |
|
Power consumption |
<0.5W @DC12V |
|
Power protection |
Reverse connection protection, static discharge protection |
|
working temperature limit |
-30℃~70℃ |
|
Communication interface |
RS485 interface (baud rate 9600, 8, N, 1), effective transmission distance 1000m (external 150 Ω matching resistor is required for > 300m) ③ |
|
Communication protocol |
Standard Modbus-RTU, function code |
|
Compensation |
Sound velocity compensation, user parameter compensation |
|
Ultrasonic frequency |
1MHz ±30Hz |
①The current consumption varies depending on the operating mode, with power specifications provided for the default continuous acquisition mode.
②The default flow velocity range is set to 0–6 m/s. A wider selected range enables faster data acquisition, albeit with a corresponding reduction in resolution; however, the resolution remains higher than 1 cm/s in all cases.
③ For communication distances exceeding 50 meters, voltage drop must be taken into account. Cables with a cross-sectional area of at least 1.5 mm² are recommended for distances beyond 100 meters, and even thicker cables are required for longer runs. Alternatively, increasing the supply voltage can help mitigate voltage attenuation over extended distances.
④Prior to powering the system, inspect all wiring connections carefully. Under no circumstances should the RS485 communication lines be connected to the power terminals, as this may result in permanent damage to the device’s communication module.
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FAQ
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Q: Are you trading company or manufacturer ?
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A
A: We are a manufacturer, committed to producing high accuracy, long-term stability, cost-efficient pressure/ level/ temperature measuring instruments.
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Q: What's your quality control system?
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A
A: All of our products are completed with inspection before shipment. And all of our products will be fully pre-inspection by QC departments before shipping to you . We have the certification of ISO, we could send the certification test of our company to you.
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Q: What is the warranty of your products?
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A
A: 2 years for level transmitter and pressure transmitter series others are 5 years from shipment date, for non-man-made damages.
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Q: What is your shipping method?
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A: Small orders are delivered with DHL, FedEx, TNT, UPS , EMS. Large orders are recommended to ship by sea.
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Q: Do you provide samples ?
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A: Yes,we have materials in stock to help you to get the samples as soon as we can.
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Q: How long will you give me the reply?
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A: We can support you 24Hours online service via email, skype, what'sapp, facebook etc within 1 hour.
Leave Message
If you have already experienced our product, please let us know your true feelings. Your satisfaction is our driving force for progress, while your suggestions are our valuable asset for continuous improvement.
Contact Us
Contact Us
Add: Lianxiang Enterprise Center, No.11 Fenghuang Avenue, Canglong lsland, Jiangxia Distrlct, Wuhan City Hubei Province
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