FDC300 Radar Doppler Flow Meter

Radar Doppler Flowmeter

I. Product Introduction

The Radar Doppler Flowmeter is a specially designed instrument for measuring flow velocity and water level in natural water bodies. Utilizing advanced radar technology, the instrument's ranging radar unit operates at 80GHz, while the speed measurement radar unit operates at 24GHz, ensuring accurate measurements even in harsh environments with high suspended sediment content, abundant floating vegetation such as aquatic plants, and during icy conditions. The measurement point is located at the front of the body, without disturbing the flow field, making it suitable for various flow monitoring scenarios such as water level stations, irrigation canals, and sewage and rainwater pipe networks.

II. Measurement Principle

The Radar Doppler Flowmeter operates based on the Doppler effect in physics. When the electromagnetic waves emitted by the radar sensor contact the fluid surface, they produce a frequency shift due to fluid motion. This frequency shift is directly proportional to the fluid velocity. By measuring the frequency difference between the transmitted and received waves, the flow velocity can be determined, and subsequently, the flow rate can be calculated. Additionally, the radar sensor can measure the liquid level by determining the time difference of the reflected waves. This measurement method not only provides high accuracy but is also suitable for two-phase flow measurements, addressing complex flow field issues that other flowmeters find challenging.

III. Radar Doppler Flowmeter Product Features

1. Non-contact Measurement: Utilizes radar technology for non-contact measurement, minimizing environmental impact and reducing maintenance costs.

2. High Precision Measurement: Offers high measurement accuracy and a wide measurement range, suitable for various flow velocity and liquid level measurement requirements.

3. Linear Measurement: Provides linear measurement results, eliminating the need for complex calibration curve calculations.

4. High Reliability: Fully enclosed design meets IP68 dust and waterproof requirements, ensuring stable operation in various harsh environments.

5. Easy Installation and Maintenance: Compact structure, easy installation, and low maintenance costs.

IV. Radar Doppler Flowmeter Technical Specifications

Performance Parameters

• Measured Variables: Flow Velocity, Liquid Level

• Measurement Range:

• Flow Velocity: (0.1~2) m/s

• Liquid Level: (020) m / (030) m (optional)

• Accuracy:

• Flow Velocity: 3%±0.01 m/s

• Liquid Level: 0.2%±0.01 m

• Resolution:

• Flow Velocity: 0.01 m/s

• Liquid Level: 0.001 m

• Response Time: 10s~60s (adjustable via communication protocol)

• Input Signal: Electromagnetic Waves

• Transmission Frequency:

• Flow Velocity: 24GHz

• Liquid Level: 80GHz

• Transmission Power: EIRP 20 dBm

• Antenna Angle:

• Flow Velocity Measurement: 13°*26°

• Liquid Level Measurement: 6°*6°

• Protection Class: IP65

Output Parameters

• Transmitter Output:

• Output Type: (420) mA Output, (05) V Output

• Output Accuracy: %0.5 F.S

• Output Load: 250Ω

• Communication Output:

• Output Type: RS485

• Communication Protocol: MODBUS

• Relay Output:

• Relay Type: Double SPDT / Double SPDT + Double SPST

Power Parameters

• Power Supply: AC: 220V; DC: (9~30) VDC

• Power Consumption: ≤4W

Electrical Interface

• Electrical Interface: M20*1.5 Cable Gland

Environmental Conditions

• Operating Temperature: (-20~60) °C

• Storage Temperature: (-20~80) °C

V. Application Scenarios

The Radar Doppler Flowmeter is widely used in flow monitoring scenarios such as water level stations, irrigation canals, sewage and rainwater pipe networks. It is particularly suitable for measuring flow velocity and liquid level in harsh environments with high suspended sediment content, abundant floating vegetation, and icy conditions.

VI. Ordering Information

For more product information or to place an order, please contact our customer service team. We will provide you with professional technical support and high-quality after-sales service.

FDC300-Radar-Doppler-Flow-Meter-Instruction-Manual.pdf