Thread Content
1. Avoid the feed port. The first installation requirement is to avoid the feed port. because. During the injection process of the material, a reflection signal with an amplitude larger than the normal measurement will be generated. False echo signals with much larger echoes will have a great impact on the measurement of the radar level meter. Therefore, try to avoid the feed opening when installing. In addition, if it is installed outdoors, such sunshade and rainproof facilities must be used appropriately. As shown in figure ① error: Do not install the instrument above the incoming material flow. The cable or rod should avoid the material opening ② Pay attention correctly: Sunshade and rainproof measures should be taken during outdoor installation. 2. Avoid agitators. For containers with agitators, when installing radar level meters, be sure to avoid agitators. Fan blades that avoid the stirrer will produce irregular false signals during stirring. This false signal will cause false echoes, which will have a great impact on the measurement of the radar level meter. Especially when the dielectric constant is relatively small, or when the dielectric constant is relatively low, the impact of the stirrer will be more serious. Therefore, be sure to avoid the fan blades of the stirrer when installing. 3. Ensure that the radar antenna is deep for conventional non-contact radar, whether it is a rod antenna or a horn antenna. We all need to ensure that the antenna must at least extend into the inside of the can, which means that the length of the antenna must be at least 10mm longer than the distance between the tube and the tube. Only by ensuring that the antenna is deep into the tank can we minimize the possibility of receiving false signals. 4. Make sure that the waveguide (cable) does not touch the bottom of the tank. When the waveguide (cable) touches the bottom of the tank, a strong false echo signal will also be generated. So it should be at least 1-5cm away from the bottom of the tank. Of course, it will cause a 1-5cm blind area at the bottom. That is to say, the closer the distance to the bottom of the tank, the smaller the blind area at the bottom. Remember, the still pipe cannot touch the bottom of the tank. 5. The installation position of the vault tank is for the vault tank. The instrument cannot be installed in the exact center of the vault. Because in addition to indirect echoes, it will also be affected by multiple echoes. Multiple echo signals may be larger than the true echo signal. This will cause the meter to display false false level values. Therefore, when installing a vaulted tank, the radar level meter needs to be installed in the center of the tank top. 6. Installation position of the conical tank. For this kind of conical tank, if the top of the conical tank is flat, the meter can be installed in the middle of the top to ensure that the measurement reaches the bottom of the conical tank. 7. The installation position of the solid stockpile bin. When measuring the solid stockpile, the stockpile will produce a stockpile surface. Therefore, when choosing a radar level meter, you must choose a radar level meter with a universal flange. Adjust the universal flange to further adjust the angle of the radar antenna, and try to align the radar antenna with the material pile control surface. This can ensure the accurate value and accuracy of the pile measurement.