1. Product Introduce
RD-SVR series radar flowmeter can continuously measure the flow of water in rivers and open channels and obtain surface
flow velocity and water level height by non-contact measurement. For the regular channel section, the flow results are calculated
using conventional mathematical formulas. For the irregular channel section, the flow results are obtained by using the plot
method and calculuscalculation. The non-contact measurement method is not affected by impuritiessuch as sediments and water
plants, which reduces maintenance costs and increasesreliability.
2.Product Feature
(1) The two-in one product directly completes the flow calculation, and the embedded hydraulic model is related to the section
shape,roughness, slope,water level and so on. The flow meter directly outputs flow rate, water level,instantaneous flow and
accumulated flow without taking up other computing resources.
(2) Supportarray multi-point measurement, flow monitoring of ultra-wide sections byconfiguring 1 set of flow meters and N sets
of flow meters.
(3) Doesnot destroy the flow of water, to ensure accurate measurement data.
(4) 7x24online automatic monitoring, unattended.
(5) Easy installation and installation, low power consumption and economicalapplication.
(6) IP68 protection level, maintenance free.
3.Product Advantage
(1) Scientific flow calculation (hydraulicmodel)
Flow section cross-section flow rate =section cross-sectional area * section average flow velocity, how to obtain the average
flow velocity of the section has always been a difficult point in the field. For this reason, our company has developed a
fluid mechanics model incooperation with Tsinghua University, and through continuous experimentation,the model is revised.
Create a 3D model for a given section.
The relationship between the average flow velocity of the section and the surface velocity obtained by gridding.
TheK-value curve (related to the water depth) between the surface velocity and theaverage velocity of the section is
delineated to calculate the average flowvelocity of the section.
(2) Non-contactmeasurement advantages
a. Itis not affected by water quality, reducing maintenance costs, and is safe andreliable.
b.It doesnot destroy the flow of water, to ensure the accuracy of the measurement.
c.7*24honline automatic monitoring, no personnel on duty.
d.Easyto construct and install, low power consumption and economical.
4.Application Scenarios and Solutions
(1) Irrigation open channel water flowmonitoring system
(2) Open channel flow online monitoring Solutions
The open channel radar online measuring station is composed of a radar flow meter,a wireless data transmission module
and a solar power supply module. The radar flowmeter collects the real-time water level of the section and the real-time
flow velocity of each section, and calculates the real-time flow of the section according to the three-dimensional model of the
section, which is sent by thewireless module to the management center through the mobile phone network. Theentire system is
powered by a solar module.
(3) Installation Notes
According to the width of the open channel and the shape of the bottom, optimize the number of devices, and select the bridge
installation or pole installation according to the actual situation. Selection and configuration recommendations:
a. Installed in an environment where the water surface is gentle and stable, there is no backflow and vortex, and the water surface
is in the measurement range.
b.Avoide nvironments such as drains, vertical drops, baffles, and river bends.
c.The center axis of the device should be consistent with the direction of waterflow, and the central axis of the radar flowmeter
should be perpendicular to the water surface.
5.Technical Parameters
Speed range | 0.1m/s~20m/s (related to water flow) |
Speed measurement accuracy | ±0.01m/s ;±1%FS |
Flow meter frequency | 24GHz |
Flow meter beam angle | 12° |
Ranging range | 30m, 70m (optional) |
Ranging accuracy | ±2mm |
Water level meter frequency | 26GHz |
Water level gauge beam angle | 7° |
Water level gauge antenna | Lens antenna |
Attitude angle intelligent perception and compensation | Horizontal angle, roll angle accuracy ±1°; resolution ±0.1° |
Data interface | RS-485, MODBUS protocol, LoRa.LoRaWAN,NB-IOT,GPRS |
Baud rate | 9600-115200 |
Operating Voltage | DC6~30V Advice 12V |
Power consumption | Operating current <80mA, standby current <55mA |
Operating temperature | -35℃~+70℃ |
Ambient temperature output (optional) | Accuracy ±1°C; resolution 0.1°C |
Protection level | IP68 |
Product Size | 278*140*271mm (length * width * height) |
Product weight | 4.3kg |