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Firstrate Sensor Co.,Ltd is a leading sensor Manufacturer with 60 years Experience
Recommended Flow Metering Equipment Firstrate Integrated Ultrasonic Radar Flowmeter
2026-11-12
As smart water services continue to be widely deployed, the requirements for online metering at river and sea outfalls as well as industrial liquid pipelines are becoming increasingly stringent. The flow regime inside pipelines is unstable: short‑term high flow in rainy seasons alternates with low, partially‑filled flow in dry seasons, and the medium contains suspended solids. Conventional flowmeters can hardly cope with such diverse working conditions. Many projects seek an integrated flow monitoring solution with redundant measurement capability and strong environmental adaptability during equipment selection. Featuring a dual‑technology integrated design, the integrated ultrasonic‑radar flowmeter launched by Firstrate has become the preferred flow sensing device for numerous system integrators.
Most traditional flow monitoring solutions rely on a single ultrasonic or radar flowmeter. Once the flow regime changes, measurement accuracy drops sharply, and valid data may even become unavailable. Breaking the limitations of single‑technology instruments, this integrated flowmeter from Firstrate incorporates a pressure liquid level sensor, water immersion sensor, radar level module, Doppler ultrasonic and Doppler radar flow measurement modules. The water immersion sensor detects the internal pipeline status in real time and automatically switches the measurement channel. When the pipe is partially filled, radar flow measurement and radar water level acquisition are activated; under full‑pipe conditions, ultrasonic flow measurement and pressure‑based water level monitoring take over. The two modes switch seamlessly. Combined with an intelligent flow algorithm, the meter continuously outputs a full set of monitoring data including instantaneous flow, cumulative flow, water level and flow velocity after cross‑section parameters are entered.
Its top‑mounted design is a major highlight. It keeps the probe away from the silt accumulation zone at the pipe bottom and reduces measurement errors caused by sediment covering the sensor over time. Customizable mounting brackets are available to suit circular pipes, box culverts and outfall channels. Measurement is implemented purely by electronic components with no rotating parts, so entanglement by fibrous debris is avoided and long‑term maintenance workload is reduced. The integrated ABS housing offers excellent sealing with an IP68 protection rating. It can remain submerged and operate reliably in highly humid manholes for a long time, adapting to harsh media such as sewage and chemical fluids.
Equipped with an RS485 communication interface and supporting the standard Modbus‑RTU protocol, the device boasts great compatibility and connects to most IoT acquisition platforms. Operation staff can remotely track flow variations, set threshold alarms and promptly detect pipe overflow or abnormal sewage discharge. It runs on 12–24 V DC power, fitting complex power supply environments at industrial sites. Two independent channels for flow and water level measurement provide redundancy. Both ultrasonic and radar velocity channels support bidirectional flow, and the dual water level acquisition channels deliver high resolution. Stable readings are maintained at high or low flow velocities and varying water depths, ensuring accurate records of instantaneous and cumulative flow.
In online monitoring projects for coastal outfalls, tides alternate full‑pipe and partially‑filled states. Previously deployed flowmeters often lost data during flow regime transitions. After replacement with this integrated ultrasonic‑radar flowmeter, the device automatically identifies working conditions and switches measurement modes to achieve round‑the‑clock continuous metering, supplying consistent and trustworthy data for pollutant source tracing and total discharge accounting. Beyond municipal outfalls and drainage networks, it is also widely applied in liquid transmission pipelines for petroleum and chemical industries to meet the demands of online industrial fluid monitoring.
Firstrate keeps refining its sensing solutions targeting metering pain points of pipe networks and outfalls. Leveraging dual‑wave integrated intelligent flow measurement and automatic flow regime recognition, this integrated ultrasonic‑radar flowmeter resolves flow metering challenges under variable working conditions. It delivers stable and reliable technical hardware for smart water management and online industrial fluid monitoring, supporting the industry’s digital control of flow data.
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