Radar level transmitter wholesale manufacturer today: The third case is that, during the commissioning stage of a platform construction, when the liquid level is higher than 3800mm, the radar level meter of the dirty oil tank will frequently jump to 0mm, which leads to the shutdown of the fourth-stage production unit. After on-site inspection, the power supply voltage of the radar level meter transmitter is only 9.5V, which is lower than the working power supply voltage of the radar level meter. By further searching for the cause of the failure, found that when the high liquid level, the voltage at the power supply is 23.7V, the safety gate output drops to 9.7V, judged as a safety gate transmitter failure. After replacing the safety grid, the voltage returns to normal, the cabin radar level meter in the test to rule out the problem. Discover even more info at radar type level transmitter.
Working principle: Tube in the liquid level meter has a magnetic float, float design, according to the proportion of medium float magnet steel and container liquid level at the same level, wholesale liquid level gauge in a semiconductor magnetel liquid level gauge sensor LED display scale, and orderly arranged from top to bottom, and LED module corresponding to the magnetic field magnetic sensor, the magnetic semiconductor, triggering the corresponding digital circuit, liquid level above the red LED display, The LED below the liquid level gauge is displayed in green, the red in gas phase, and the green in liquid phase. The red-green junction is the actual liquid level in the container.
Measuring principle of radar water level meter: The radar level gauge adopts the working mode of transmitting-reflecting-receiving. The electromagnetic wave emitted by the antenna is reflected by the surface of the measured object and then received by the antenna. After measuring the distance from the water surface to the radar antenna, the elevation of the water surface can be calculated according to the elevation of the radar antenna. The radar water level meter adopts pulse wave technology with low power consumption. It can be powered by two-wire 24 VDC, 485 interface output, or can be directly powered by 12 VDC, SDI-12 interface output, with high accuracy and wider application range.
Level Measurement Considerations: Taking advantage of a specific technology’s ability to reliably address the level measurement in either of these vessels, especially the blowdown flash tank, in a plug-and-play type installation and commissioning format is an easy way to ensure optimal performance. This forgoes calibration, external hardware or inputs. Estimates of up to 49 percent of the energy can be recovered through the use of flash steam routed to heat exchangers or the deaerator to preheat boiler makeup water or support the deaeration process, respectively. In addition, better level control technology at the boiler side eliminates energy losses resulting from unnecessary blowdown to prevent carryover conditions.
So what can be done about these difficulties? Under the condition of strong dust, on the one hand, the radar with high transmitting energy can be selected, on the other hand, the measurement software with continuous measurement algorithm of wave-loss waiting can be selected. When the radar encounters strong dust, it will not misjudge the measurement result even if the radar loses wave for a short time. After entering the state of continuous measurement algorithm, if the reflection wave of real material surface can be recognized within the set waiting time, the correct measurement value of material surface can be obtained. In the past, only a few foreign radars have this function. At present, there are also domestic radars with this function, and the practical application effect is very good.
As one of the most professional magnetic level indicators manufacturers in China,Guangdong Kaidi Energy Technology Co., Ltd. provides customized solutions for a range of industrial automation process applications,such as mechanical float level indicator.We specialized in radar level gauge, fork type level switch,etc. These were implemented successfully, and KAIDI magnetic level gauge manufacturers products,such as radar level meter, magnetic level indicators, can be used in many different industries such as food & beverage, water, energy, pharmaceutical etc. See extra info on https://www.kaidi86.com/. Our Radar Level Meter has a range of up to 150 meters, frequency up to 120GHz and an accuracy of ±1mm, which can cope with various complex measurement conditions.
Ground interference refers to one of the two output ends of the radar level gauge (or compensation line), and its AC voltage to the ground is called the ground interference voltage. This disturbance is also known as longitudinal, in-line mode or in-line state disturbance. Generally speaking, the interference voltage to ground can reach several volts or even more than 100 volts. The above is the interference of the radar level gauge we discussed. When we install or use the radar level gauge, we can also determine whether your use environment will cause these interferences to the level gauge according to the above situation. If these conditions exist, anti-interference measures must be taken to ensure that the level gauge can serve you better.
Working principle: Working principle of radar level gauge: UHF electromagnetic waves are transmitted to the liquid level of the container under test through the cable or antenna. When the electromagnetic wave touches the liquid level and is reflected back, the instrument detects the time difference between the initial wave and the echo, thereby calculating the liquid level height. Select guided wave radar or airborne radar according to the dielectric constant and measurement length of the measured medium.
Temperature Compensation- Precision in Any Environment Another advancement in guided radar level measurement technology is the incorporation of mechanisms that compensate for temperature variations. Temperature fluctuations in microwave module circuits can lead to inaccuracies in measuring levels. To tackle this challenge, radar level measurement systems have implemented creative solutions. A crucial aspect of these advancements involves allocating a portion of the radar transmission pulse as a reference pulse. This reference pulse serves as a benchmark for comparing measurements enabling temperature calibration. When temperature changes occur the radar sensor can adjust its measurements accordingly ensuring that environmental conditions have no impact on accuracy. This temperature compensation feature is particularly valuable in applications where significant temperature shifts are common. Industries dealing with temperatures or processes prone to variations, such as petrochemical or food manufacturing sectors, rely on precise measurements. Radar sensors equipped with temperature compensation mechanisms rise to the occasion by delivering reliable results despite changing conditions.
Measurement accuracy, the accuracy of ordinary radar is generally ±10mm, and the accuracy of precision radar is ±3mm. Selection according to the actual needs of production. Range, according to actual needs, choose the antenna size. Note that the actual range is reduced in complex environments. Antenna type and antenna size, the larger the antenna size, the larger the measured range and the stronger the anti-interference ability. The antenna types of radar level gauge are rod type, bell mouth type, paraboloid and so on.