Ultrasonic Open Channel Flow Meter – Preferred Solution for Medical Wastewater Discharge Monitoring [Dayu Electronics]
Ultrasonic Open Channel Flow Meter is a dedicated device for flow monitoring in open channels. Based on the ultrasonic non-contact ranging principle and combined with standardized weir/flume level-flow conversion models, it achieves real-time, accurate measurement of wastewater flow in open channels. The device does not require contact with the measured medium and is compatible with mainstream weirs and flumes such as Parshall flumes and V-notch weirs. It can be widely used in environmental protection, municipal engineering, wastewater treatment, and other fields requiring flow monitoring, meeting multiple needs including discharge metering, process control, and environmental supervision. It is an efficient solution for open channel flow monitoring.
The core features of this device are outstanding: non-contact measurement design fundamentally avoids medium blockage and corrosion issues; flow measurement accuracy is ±1%, with liquid level detection resolution of 1mm, accommodating both micro-flow and large-flow monitoring; IP65 protection rating, built-in lightning protection and anti-interference circuits, suitable for outdoor humid and corrosive complex conditions; no mechanical moving parts, low equipment failure rate, and controllable maintenance costs. Compared with traditional contact-type flow meters, its differentiated advantages are significant: no need to modify existing channels, can directly connect to standardized weirs/flumes, fast installation, low retrofit cost; non-contact design completely solves the equipment wear problems caused by suspended solids and viscous impurities in wastewater, with service life much longer than contact-type devices; full-range accurate monitoring, flexibly adaptable to flow fluctuation scenarios, with stronger adaptability.
On the technical level, the device adopts a high-frequency ultrasonic pulse time-difference algorithm combined with temperature compensation technology to ensure stable and accurate measurement data; supports 4-20mA analog output and Modbus RTU digital communication, seamlessly interfacing with central control and environmental monitoring platforms for real-time remote data transmission; built-in flow threshold alarm function provides automatic alerts for abnormal flow, facilitating rapid fault diagnosis. The technical specifications fully meet industrial-grade monitoring requirements.
This device has been successfully applied in the wastewater discharge flow monitoring project at Ningde Hospital's wastewater treatment plant. Given the characteristics of medical wastewater containing suspended solids and corrosive substances, the non-contact installation effectively prevents probe blockage and corrosion, ensuring long-term stable operation. The device accurately measures the discharge flow after wastewater treatment, uploading instantaneous and cumulative flow data to the supervision platform in real time. The data is traceable and verifiable, fully meeting the compliance requirements for discharge monitoring under the "Discharge Standards of Water Pollutants for Medical Institutions." Additionally, the design without mechanical parts greatly reduces on-site maintenance workload, meeting the demands of unattended operation, and provides accurate and reliable flow data support for hospital wastewater compliance discharge and refined management, making it the preferred equipment for medical wastewater discharge monitoring.