What should be noted when using a high-frequency radar water level gauge?

      Radar water level gauge It is an advanced radar level transmitter with a measurement range of 70 meters. The antenna has been further optimized, and a new high-speed microprocessor enables faster signal analysis and processing, making the instrument well-suited for solid materials, process vessels, or environments where heavy dust, crystallization, and condensation are common.

　　Precautions for using radar water level gauges:

　　1. When measuring liquid materials with a high-frequency radar level gauge, the sensor axis should be kept perpendicular to the surface of the medium; when measuring solid materials, since solid media exhibit an angle of repose, the sensor should be tilted at a specific angle.

　　2. Radar water level sensors should, as far as possible, avoid equipment that can cause spurious reflections within the beam’s emission angle. In particular, within the antenna’s 1/3‑cone‑shaped radiation zone, obstacles should be kept clear (since the closer an obstacle is, the stronger the spurious reflection signal). If avoidance is not feasible, it is recommended to use a refractive plate to deflect excessively strong spurious reflections. This reduces the energy density of the false echoes, enabling the sensor to more easily filter out these unwanted signals.

　　3. The radar level gauge is positioned away from the feed inlet to prevent spurious reflections.

　　4. Radar level transmitters should not be installed at the center of an arched tank (as this would amplify spurious echoes received by the sensor), nor should they be mounted too close to the tank wall; the mounting location should be at a distance equal to half the vessel’s radius.

　　5. Avoid installing high-frequency radar level transmitters in areas with strong eddies. For example, when agitation or vigorous chemical reactions are present, it is recommended to use a waveguide or a bypass pipe for measurement.

　　6. If the radar level gauge is mounted on a connecting pipe, the antenna must extend beyond the pipe. For horn antennas, the extension should be at least 10 mm; for rod antennas, the connecting pipe should be 100 or 250 mm long, with a nozzle diameter of no less than 250 mm. Reducing the nozzle diameter can help minimize interference echoes caused by the nozzle.

　　7. Regarding waveguide antennas: The inner wall of the waveguide must be smooth, and the waveguide must be oriented with its opening at the bottom to achieve the required low liquid level before measurements can be taken inside the pipeline. Radar water level gauge The template should be aligned with the axis of the waveguide opening. If the measured dielectric constant is less than 4, a reflector must be installed at the end of the waveguide, or the waveguide’s end should be bent into an elbow to refract the reflected wave back from the bottom of the vessel.