Product Description
This radar flow meter uses a non-contact method to monitor water flow rate and water level. It is mainly composed of water flow meter and water level meter. The flow meter is used to collect the surface flow rate of the fluid and calculate 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 calculated based on the standard value obtained from the actual measurement environment.
Our radar flow meter uses the Doppler radar velocity measurement principle. When measuring the water surface, the radar flow sensor emits microwaves to the water surface, and the microwaves are absorbed and reflected when they encounter the water surface. Part of the reflected wave is received by the flow meter probe, and then converted into an electrical signal, which is processed by the measurement circuit and the Doppler frequency shift is measured. The water flow rate can then be calculated based on the signal processing algorithm. The radar water level meter uses FMCW modulation, with a triangular wave as the modulation signal.

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, with one side of the inclined surface facing 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. It is possible that the beam will irradiate the bank of the channel and be interfered by moving targets on the bank. If it is installed too low, it will not be conducive to anti-theft protection, so the recommended height for pole installation is 3-4 meters.
Specification
| Power supply |
DC 10-30V |
| Max. power consumption |
1.3W |
| Component temperature and humidity resistance |
-40ºC~+80ºC, 0%RH~95%RH (non-condensing) |
| Measure flow rate frequency |
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 |
Company Information



How to proceed an order?
1. Let us know your requirements or application.
2. We quote according to your requirements or our suggestions.
3. Customer places payment for formal order.
4. We arrange the production.
Glad to answer your questions,Contact me
FAQ
1.Q: How long is the delivery?
-- Mostly within 10days
2.Q:Can I get a sample?
-- Sure, contact our sales please
3.Q:What is your MOQ?
-- 1pcs
4.Q: How about warranty time?
-- 12-18months
5.Q: How can I visit your factory?
-- Fly to Xi'an air port, it's our pleasure to pick you up.
6.Q:How do you control your quality ?
-- We have EPR system .we control from parts, process, testing, packing ,retesting.
7.Q: Do you have test report for each product?
-- Yes,we have test report for each product.
8.Q: Can you customize product for us according to our required specifications?
-- Yes,we are OEM manufacturer,we could customize products according to your required specifications.
Every Sensor will be tested two times before reach you, after that sport test for the third time. Make sure about the quantity.Welcome to order our products.