The design accuracy of the radar level gauge is much more complicated than the design accuracy of the ordinary magnetic flap level gauge. If maintenance is not carried out at ordinary times, it will not only shorten the service life, but also cause errors in use, so how to maintain the radar level gauge What? The following editor will be introduced to you.
How to maintain the radar level gaugeHow to maintain the radar level gauge?1. Grounding protection. In order to prevent damage to electrical components due to leakage and interference with normal signal transmission, both ends of the signal interface between the radar monitoring head and the control room cabinet must be grounded.2. Instantaneous over-excitation voltage protection. The radar level gauge itself supports this function, but it should be installed as much as possible to avoid areas where lightning often moves, or take external lightning protection measures.3. Interfering signals. When the liquid level fluctuates violently in a short period of time, the cause should be found in time and the malfunction should be checked. Any obstacles under the antenna may weaken the signal and cause measurement deviations. Therefore, when the measuring medium is asphalt or volatile medium, the antenna should be cleaned regularly.4. Wiring port. The field terminals must be sealed and isolated to avoid short circuit of the power supply and corrosion of the terminals and circuit boards due to liquid intrusion.Points for Attention in the Maintenance of Radar Level Meter1. The measurement range is calculated from the point where the beam touches the lower part of the fuel tank, but under special circumstances, if the bottom of the fuel tank is concave or tapered, it cannot be measured when the object level is below this point.2. When the medium is at a low level, if the medium has a low dielectric constant, the bottom of the storage tank can be seen. In order to ensure the measurement accuracy, it is recommended to set the zero point at a low height C.3. Theoretically, the position of the antenna tip can be measured, but considering the effects of corrosion and adhesion, the final value of the measurement range should be at least 100 mm from the antenna tip.4. For overflow protection, the safety distance can be determined and connected to the blind zone.5. The minimum measurement range is related to the antenna.How to maintain the radar level gaugeWhat is a radar level gauge?The very short microwave pulses emitted by the radar level gauge are transmitted and received by the antenna system with very low energy. Radar waves travel at the speed of light. The running time can be converted into a level signal by electronic components.A special time extension method can guarantee the stability and accuracy of the measurement in a short time. Even under complex working conditions, there are false echoes, and the latest micro-processing technology and debugging software can be used to accurately analyze the object-level echoes.The radar level gauge is mainly composed of electronic components, antennas and fixed components. The occasional problem encountered in use is that some volatile organic compounds in the fuel tank will crystallize on the horn or antenna of the radar level gauge. As long as it can be checked and cleaned regularly, the maintenance is small.How to maintain the radar level gauge, I have already told you above, if you think the maintenance of the radar level gauge is too troublesome, you can find Huikedak Instruments, they are professional radar level gauge manufacturers, as long as it is related to the level gauge , They can solve it.
Post time: 21-09-21