Description
| For Downloads | Data Sheet – User Manual – Other Documents – Certificates | |
| Setup Software | Testing Software | |
| For Purchase | Call / WhatsApp / Telegram: +91 8148834200 | |
| For Technical Support | Call / WhatsApp / Telegram: +91 8148834211 | |
This radar flow meter uses a non-contact method to monitor water flow rate and water level.It mainly consists of a water flow meter and a water level meter. The flow meter collects the surface flow rate of the fluid and calculates the average flow rate of the water section through the model.The water level meter measures the water level and cross-sectional information to calculate the cross-sectional area of the flow, and uses the formula flow = average flow rate × cross-sectional area × correction coefficient to get the flow rate.The correction coefficient is based on the standard value obtained from the actual measurement environment.
Radar Flow Meter View
Our radar flow meter uses the Doppler radar velocity measurement principle.When measuring the water surface, the radar flow sensor emits microwaves toward the water. These microwaves are absorbed and reflected upon encountering the surface. The flow meter probe receives part of the reflected wave, converting it into an electrical signal.The measurement circuit processes this signal and measures the Doppler frequency shift, allowing the calculation of the water flow rate based on the signal processing algorithm. The radar water level meter uses FMCW modulation, with a triangular wave as the modulation signal.
| Power supply | DC 10-30V |
| Max. power consumption | 1.3W |
| Component temperature and humidity resistance | -40℃~+80℃, 0%RH~95%RH (non-condensing) |
| Measure flow rate frequencyfrequency | 24.00GHz |
| Flow rate range | 0.1 ~20m/s |
| Flow rate accuracy | ±2% |
| Flow rate resolution | 0.01m/s |
| Measure distance frequency | 76GHz~81GHz |
| Water level range | 0.1 ~ 65m (maximum range when measuring water level only) |
| Range accuracy | ±1mm |
| Range resolution | 1mm |
| Usage height | 0~20m |
| Protect class | IP67 |
Radar Flow Meter Installation
Select the installation site
The selection of the measuring channel section is directly related to the accuracy of the data. To ensure the accuracy of the results, the following conditions should be met:
1. There are no huge rocks blocking the water in the test channel section, no large whirlpools, turbulence, etc.
2. The water flow in the test channel section is stable and concentrated.
3. The test channel section needs to be hardened and the measuring section should be regular.
4. The test channel section should be kept smooth to prevent the accumulation of floating objects.
Install the radar flow meter in the middle of the channel or river, or as close to the center as possible. Ensure that one side of the inclined surface faces the water flow direction.
Antenna beam range
The radar flow meter integrates a water level meter and a current meter. The water level meter antenna beam angle is 6×6°, and the radar antenna angle is 30×80°. When the water level meter illuminates the water surface, the illuminated area is similar to a circle. When the current meter illuminates the water surface, the illuminated area is similar to an elliptical area. As shown in the figure. An accurate understanding of the irradiation range of radar waves helps to choose a suitable installation location to avoid interference from branches on both sides of the river and floating debris in the water.
Installation height
Under the same conditions, the higher the installation height, the weaker the echo and the worse the signal quality. Especially for scenes with low water flow velocity, the ripples are small and more difficult to measure. At the same time, the area of radar wave irradiation will be larger.The beam might irradiate the bank of the channel and be interfered with by moving targets on the bank. Installing it too low is not conducive to anti-theft protection; thus, the recommended height for pole installation is 3-4 meters.
Notes
1.During the installation of the flow meter, ensure that the water level meter and velocity meter radar remain unblocked. Any obstruction can affect measurement accuracy.
2. When installing the flow meter, try to ensure that the upper surface of the shell is horizontal and installed in the middle of the channel.
3. Position the velocity meter beam to face the incoming water direction. Ensure the horizontal angle with the water flow direction is 0 degrees.
4. Dynamic targets only affect the velocity meter. When the channel is hardened and free from weeds or trees, the measurement data remains unaffected even if the beam irradiates both sides of the channel.
