HB-DFM201 Ultrasonic Flow Meter
Product Introduction:
Ultrasonic flow meters calculate water flow using the acoustic time-of-flight method. They calculate the multi-layered average flow velocity by measuring the time difference between the transmission and reception of ultrasonic signals by a multi-channel transducer deployed underwater, and then calculate the flow rate based on the relationship between water level and cross-sectional area obtained from on-site cross-sectional measurements.
Integrating data acquisition, storage, processing, analysis, transmission, and communication functions, these flow meters are widely used in hydrological, water diversion, hydropower, water resources, and irrigation projects, and are applicable to water diversion projects, water fee settlement, and water resources management in the fields of water conservancy, hydropower, and municipal engineering.
PRODUCT DESCRIPTION
Features
1.Large cross-sectional water flow monitoring, measurement range up to 2000m
2. High flow velocity resolution, with a velocity resolution of 0.001m/s
3. Precise measurement, with an indication error of ±1% for artificial open channel flow measurement and ±3% for natural river flow measurement
4. Low power consumption, suitable for rainy weather
5. Industrial-grade components, three-level lightning protection, long-term stable operation
Technical Highlights
1. Water temperature self-calibration technology
2. Ship passage monitoring technology
3. Real-time monitoring technology for shellfish growth
4. Sediment monitoring technology
5. Low flow velocity, high bubble, and tidal flow measurement technology
6. Overcoming the challenge of ultrasonic "afternoon effect"
TECHNICAL DATASHEETS
| Parameter Type | Specification |
| Measuring Section Type | Artificial open channel, natural river, pipeline, culvert |
| Flow Velocity Measuring Range | ±(0.005~20) m/s |
| Flow Indication Error | ±1% for artificial open channel, +3% for natural river, ±0.5% for pipeline and culvert |
| Measuring Range | (0.3~2000) m |
| Communication Mode | Wired, wireless |
| Maximum Channel Number | 8 |
| Operating Temperature | (-40~85)℃ |
| Power Supply | AC220V, DC24V (mains power/solar energy) |
| Protection Grade | Main unit: IP65 |
| Transducer: IP68 | |
| Overall Dimension | 300×180×60 mm |
| Transducer Frequency | 28kHz/88kHz/200kHz/500kHz/1MHz |
| Max Working Pressure of Transducer | 1MPa/3MPa/5MPa/10MPa |
| Historical Data Storage | More than 5 years |
| Power Consumption | Continuous mode: ＜20W, Sleep mode: ＜1W |
| Installation Method | Pole mounting, rail mounting, wall mounting, cabinet mounting |
| Interface Type | Specification |
| RJ45 | 2 channels, isolated, 10M/100M/1000M |
| RS485 | 2 channels, high-speed magnetic isolation, baud rate optional from 2400bps to 460800bps |
| RS232 | 1 channel, debug port |
| Analog Input | 1 channel, isolated, 24-bit |
| Data Storage | 16G/32G |
| LCD Screen | 4.3-inch capacitive touch screen, 480*800 resolution |
| Transducer Interface | 16 channels, isolated, adjustable power |
| Wireless Communication | 10M/100M |
| Satellite Timing | Multi-band full-system support, 1PPS timing accuracy 2.5ns |
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