A Discharge Monitoring System (DMS) is a critical tool for accurately measuring water discharge, flow velocity, and water levels in rivers, streams, canals, and industrial effluents. Modern systems, like Aaxis Nano’s RQ-30 and RQ-30D, use non-contact radar technology to provide maintenance-free, flood-proof, and highly precise measurements, even in wide rivers or turbulent waters. Equipped with data loggers and real-time transmission, these systems enable remote monitoring, data integration, and actionable insights for water resource management, flood prediction, environmental monitoring, and industrial compliance. By combining accuracy, durability, and scalability, discharge monitoring systems help organizations make data-driven decisions that protect the environment, ensure sustainable water management, and optimize infrastructure operations.
What is Water Discharge Measurement?
Water discharge measurement refers to the process of quantifying the volume of water passing through a specific point over time. Typically expressed in cubic meters per second (m³/s), discharge measurement is critical for:
- Managing drinking water resources and irrigation systems
- Flood risk assessment and early warning systems
- Monitoring industrial effluent and wastewater compliance
- Studying hydrological and environmental patterns
Accurate measurement of water discharge helps authorities, researchers, and industries make data-driven decisions that protect both people and the environment.
How Discharge Monitoring Systems Work
Modern discharge monitoring systems, like Aaxis Nano’s RQ-30 and RQ-30D, use radar-based non-contact technology to measure:
- Water Level: Detects changes in river or stream height with millimeter precision.
- Flow Velocity: Measures the speed of water, even in wide rivers with varying flow patterns.
- Discharge Rate: Calculates total water volume passing a point by combining level and velocity measurements.
These systems often include data loggers for storing readings, and data transmission modules that send real-time information to servers, dashboards, or remote devices.
Advantages of Modern Discharge Monitoring Systems
- Non-Contact Measurement: Radar-based sensors like the RQ-30 and RQ-30D don’t touch water, reducing maintenance and risk of damage.
- High Accuracy: Can measure in wide rivers, tidal waters, and areas with turbulent or uneven flows.
- Flood-Proof & Durable: Built to withstand extreme weather, weeds, and turbidity.
- Real-Time Data & Remote Access: Supports monitoring from anywhere via 2G/3G/4G networks.
- Customizable & Scalable: Systems can integrate multiple sensors for complete cross-sectional flow profiling.
Applications of Discharge Monitoring Systems
- Environmental Monitoring: Track river health, sediment transport, and pollution.
- Urban & Rural Water Management: Manage dams, irrigation channels, and reservoirs.
- Disaster Preparedness: Flood early warning and emergency response planning.
- Industrial & Hydropower Projects: Ensure effluent compliance and optimize energy generation.
Our Products
Discharge Radar RQ-30 ADMS
A compact, high-performance system for reliable discharge measurement with integrated data logger and remote data transmission. Perfect for standard and extended water level ranges.
Key Features:
- Water Level Measurement: 0–15 m standard / 0–35 m extended, resolution 1 mm, radar frequency 26 GHz.
- Velocity Measurement: 0.08–16 m/s, accuracy ±0.01 m/s, direction recognition, measurement interval 8 sec.–5 h.
- Data Transmission: 2G/3G/4G, FTP/HTTP server support, MDS server with dashboard and user management.
- Data Logger: Storage up to 500,000 values, remote readout capability.
- Technical Advantages: IP66 protection, battery 24 Ah/12V, solar-ready, lightning & over-voltage protection.
Discharge Radar Sensor RQ-30D
Ideal for wide rivers with inhomogeneous flow, offering multiple velocity measurements across the river width for maximum accuracy.
Key Features & Advantages:
- Non-contact, maintenance-free, flood-proof operation.
- Measures in tidal waters, backwater situations, or where weed growth is present.
- Single water level measurement with multiple velocity readings for precise discharge calculation.
- Supports up to 7 slave devices, enabling complete flow profile measurement.
- Analog outputs (4–20 mA) optional for integration.
Technical Highlights:
- Water Level Measurement: 0–15 m standard / 0–35 m extended, 1 mm resolution, radar 26 GHz.
- Velocity Measurement: 0.08–16 m/s, ±0.01 m/s accuracy, measuring interval 8 sec.–5 h, radar 24 GHz.
- Automatic Vertical Angle Compensation: ±1° accuracy, ±0.1° resolution.
- Interface Options: SDI-12, RS 485, Modbus; outputs include discharge rate, flow velocity, water level, and quality parameters.
- Durability: IP67 protection, operating temperature –35 to 60°C, over-voltage & lightning protection.
Why Choose Aaxis Nano Discharge Monitoring Systems?
- ✅ High Accuracy & Reliability: Even in rivers with uneven flow velocity.
- ✅ Non-contact Measurement: Maintenance-free and flood-proof design.
- ✅ Flexible Data Access: Remote data readout and real-time transmission.
- ✅ Robust & Field-Proven: Resistant to weeds, turbidity, tides, and extreme conditions.
- ✅ Scalable Systems: Master-slave configuration allows for broad river measurement.
Applications
- River and stream discharge monitoring for water resource management.
- Flood warning systems and emergency water monitoring.
- Industrial effluent monitoring and environmental compliance.
- Tidal or backwater river studies.
- Hydrological research and flow velocity profiling.
Empowering Water Management with Real-Time Data
Aaxis Nano’s RQ-30 & RQ-30D Discharge Monitoring Systems provide reliable, actionable insights to support better water management, environmental protection, and infrastructure planning.
📞 Contact our experts today to discuss your water monitoring requirements and discover the perfect solution for your site.
