Flow meter device manufacturer by Kaidi86: When the cover above the closed metal cover is opened, the false signal disappears, the overall noise line decreases, and the echo curve decreases. After analysis, it is determined that the closed metal cover is the main cause of false signals, the radar level meter antenna is made of plastic, and the radar waves emitted by the antenna leak into the external environment. The closed metal shield is used to cover the instrument, and the leaked radar wave signal is received by the antenna after several reflections inside the shield, generating a false level. Therefore, the metal shield was modified to a ring-shaped non-sealed shield at a later stage, and the radar level meter jump was significantly reduced. See more details at flow instrumentation.
So what are the installation technical requirements for radar water level meters? The installation of the radar water level meter must be vertical to the object to be measured; there should be no obstructions between the measured object and the radar water level meter, otherwise it will affect the reflection of radar waves, that is, affect the measurement accuracy; the center of the radar water level meter is far from the shore of the water body. The distance must be greater than the radius of the transmitting beam, otherwise the measurement accuracy will also be affected; the installation cantilever bracket of the radar water level meter must be firm, and cannot be shaken up and down; in order to protect the radar water level meter, the water level meter can be installed on the cantilever bracket. Iron box, put the radar water level meter probe.
Any appreciable gain in boiler feedwater achieved through the process reduces the amount of energy (fuel) required at the boiler— in fact, every 10.8°F (6°C) rise in boiler feedwater amounts to a one percent savings in fuel cost. Inadequate level controls can inhibit the deaeration process (level too high) or reduce/shutdown feedwater flow to the boiler (level too low). The former affects hardware longevity and efficiency, while the latter risks production losses and possible damage to pumps.
Radar level measurement technology symbolizes precision and innovation in industrial level sensing. Its non-contact operation, resilience in challenging environments and ability to handle measurement scenarios have earned it a reputation. Furthermore, with the integration of IIoT capabilities and temperature compensation features radar sensors continue to evolve and make contributions to advancing processes. As automation and digitalization become more widespread across industries, radar level measurement continues to be a technology that ensures efficiency, safety and reliability in their operations. By relying on radar sensors as guardians, industries can confidently navigate the intricacies of level measurement with unwavering precision.
KAIDI level transmitter manufacturer is dedicated in providing complete customized solutions for a wide range of industrial automation process applications – in material level, liquid flow, pressure and temperature. We are constantly developing and innovating, our core vision – “to provide solutions that exceed customers’ expectations. In 2012, the company successfully expanded its operations both locally and internationally, achieving global success and recognition for quality fork type level switch, magnetic level gauge products and services. Read extra details at https://www.kaidi86.com/. Suitable for chemical industry, petroleum industry, metallurgical industry, water conservancy and electronic industry, etc.
Humidity interference, when the humidity increases, it will cause the insulator resistance to decrease, the dielectric constant to increase, the skeleton to be fluffy, and the resistance to increase, resulting in an increase in leakage current and changes in capacitance and inductance. Also, it softens the colloid and reduces measurement accuracy. Chemical interference, chemical interference usually refers to some corrosive gases, such as acids and alkalis. The long-term action of these gases will not only damage the instrument and internal components, but also conduct electricity with the metal, affecting the normal operation of the radar level transmitter.
If the radar level meter is unreasonably selected, the interference echo cannot be handled well, and the reliability of the instrument will be reduced. Therefore, the following factors should be considered when selecting a radar level meter: Conductivity and dielectric constant of the measured medium. The measured medium is a conductive liquid or a liquid with a dielectric constant above 4. Generally, a common radar is selected. Liquids with small dielectric constants (dielectric constants below 2) and some conductive solids often use precision radars or guided wave radars due to the large amount of interference echoes.
In addition, some silos in cement plants are very high, such as homogenizing silos of 50cm. It takes time and energy to board high silos to debug radar, so it is recommended to choose HART handheld operators that can be debugged remotely in the central control room. In the central control room, the range and other basic parameters can be set, and the radar echo waveform can be observed, and the waveform can be used for remote diagnosis and debugging, greatly reducing the on-site work intensity of the staff, to avoid the risk of climbing operation. The smart radar level gauge commonly used at present also has a function similar to “driving recorder”, that is, when the material surface mutation occurs on the scene, it can capture the radar echo waveform at that time, which is very useful for debugging the silo under complex conditions.
When the distance between the liquid level of the measured medium and the electromagnetic wave transmitter is less than 4m, the guided wave radar is selected. If the distance between the liquid level of the measured medium and the electromagnetic wave transmitter is greater than 4m and less than 35m, select the guided wave radar with the guided wave cable. When the distance between the liquid level of the measuring medium and the electromagnetic wave transmitter is greater than 35m, or when the liquid level of the measuring medium is high temperature, high viscosity or solid liquid level, the air-shooting radar should be selected.
Product features: The gas display is red and the liquid display is green, the luminous display is clear, the observation is large, and the visual distance is long. The liquid level sensor can be clearly displayed by red and green light column, which is suitable for application in dark places and more eye-catching at night. The body is made of stainless steel, the level meter display device does not contact the medium in the container, and there is no leakage. Suitable for first, second and third class containers, suitable for containers containing flammable, toxic and corrosive media.