Custom rosemount guided wave radar level transmitter for business for transportation

Magnetic flap level meter how to prevent freezingMagnetic Flap Level Gauge is usually used to measure the level of liquid in a vessel. In order to prevent the magnetic flip-flop level gauge from freezing in the cold environment, the following methods can be taken:1. Heating device: install a heating device, such as an electric heating strip or heater, to keep the temperature around the magnetic flip-flop level gauge within a safe range to avoid freezing.2. Insulation: Add insulation layer around the magnetic flap level gauge, such as insulation material or insulation cover, to slow down the temperature drop and prevent the direct contact of cold air to the equipment.3. Use antifreeze: use antifreeze instead of water in the level gauge, choose antifreeze suitable for low temperature environment can effectively prevent freezing.4. Regular inspection and maintenance: Regularly inspect the magnetic flap level gauge and its surrounding equipment to ensure the normal operation of the heating device and insulation, and promptly find and solve problems that may lead to freezing.5. Selection of materials suitable for low-temperature environment: When designing and selecting the magnetic flap level meter, give priority to the use of cold-resistant materials suitable for low-temperature environment in order to improve the cold-resistant performance of the equipment.By taking these measures, the magnetic flap level gauge can be effectively prevented from freezing in the cold environment to ensure the normal operation and safety of the equipment.

“Facts speak louder than words”. Radar level meter in the use of the process, the most commonly occurring failure is irregular jump, this situation occurs for many reasons, the natural solution is also quite a lot. Many people read a lot of related content, their own home when the problem occurs but do not know how to solve it. Why is this? Perhaps the reason for the problem is that there is no example to illustrate, do not know which situation belongs to their own home. In view of this situation, today through a typical case of kaidi, to say how to solve this situation of irregular jumps.Case:Service content: change 120G movementSite details (temperature, pressure, media): lime baking sodaSite use of which instruments: 120G radar material level meterSite use: no regular jumps.Judgment analysis: serious accumulation of dust on site, radar probe clogging.Solution: Replace the movement, the site plus blowing.From this case, it can be seen that the reason why the radar level meter appears irregular jumps, because there is a serious accumulation of dust on the scene, resulting in the radar probe is blocked, the measurement appears irregular jumps.The reason has been found, how to solve it? kaidi after-sales engineers mainly from two aspects of processing.First, replace the original movement with a new one.Second, increase the blowing device at the site. The irregular jumping of this situation has much to do with the site environment, which is too dusty. If you want to solve the problem fundamentally, you should control the effect of dust on the radar level meter probe, and the best way is to increase the blowing device.This is one of the cases in which the radar level meter appears to jump irregularly, and the other radar level meter also appears to jump irregularly. In real life, there is almost no identical working condition, no identical case. Whether the radar level meter malfunction, or radar level meter malfunction, we can be through the past cases to learn from each other, to find the suitable radar problems and solutions.If there is a failure, we really can not start, there is no reference examples. There is another way, that is to find the relevant engineers, through them to find out the reasons for the problem, and then through the reasons to find a solution, so relatively speaking, it is much easier.

Level gauges are commonly used in industrial production to measure the height of a liquid or the volume of a liquid in a container. The daily inspection of liquid level meter is very important to ensure the accuracy and reliability of the liquid level meter, as well as timely detection and resolution of potential failure problems. In this article, we will introduce the contents and methods of daily inspection of liquid level meter.I. Appearance checkAppearance check of the level meter is mainly to check whether the external parts of the level meter are intact, including the level meter body, connecting pipelines, valves and sensors. First of all, check whether there is obvious damage or breakage of the level meter body, such as cracks, scratches, etc.. Secondly, check the tightness of the connecting piping to ensure that there is no air leakage at the connection. Finally, check whether the valves and sensors are working properly, such as whether the opening and closing are flexible and whether there is abnormal sound, etc.II. liquid level measurementThe core function of the liquid level meter is to measure the height of the liquid or the volume of the liquid in the container. Therefore one of the focuses of daily inspection of the liquid level meter is to carry out liquid level measurement. First, check whether the measurement range of the level meter matches the actual demand, such as whether it can measure the highest and lowest level of the liquid. Secondly, carry out level measurements, observe whether the measurement results are accurate and stable and compare them with the actual liquid level.III. Power-on inspectionThe level meter usually needs to be connected to the power supply to work normally, therefore, the power-on check is one of the important parts of the daily check of the level meter. First of all, check whether the power cord is intact and free from breakage and damage. Secondly, turn on the power and observe whether the level meter starts normally and whether the display shows the level information normally. At the same time, you also need to check whether the alarm system of the liquid level meter is working normally, such as alarm indicator, sound alarm and so on whether it can send out alarm signals normally.IV. Cleaning and maintenanceThe daily inspection of the liquid level meter also includes cleaning and maintenance work. First, the external surface of the level meter is cleaned regularly to ensure that there is no dust and debris attached. Second, clean the measuring parts of the level meter to remove dirt and deposits that may affect measurement accuracy. When cleaning, care should be taken to use appropriate cleaning agents and tools to avoid damage to the level meter. In addition, regularly check the sealing performance of the level meter, such as whether the waterproof seal is intact, to ensure the normal operation of the level meter in a humid environment.V. Record and analyzeThe last step in the daily inspection of the level meter is to record and analyze the inspection results. The date, time, inspection content and results of each inspection should be recorded for subsequent analysis and comparison. At the same time, you can also compare and analyze the results of multiple inspections to understand the level meter's working status and performance changes, and timely detection and resolution of potential faults.The daily inspection of liquid level meter includes appearance inspection, liquid level measurement, power-on inspection, cleaning and maintenance, as well as recording and analysis. Through regular daily inspection of the liquid level meter, it can ensure the normal operation and accurate measurement of the liquid level meter, and improve the production efficiency and product quality. At the same time, it can also timely find and solve the problem of liquid level meter failure, to avoid production interruption or other safety hazards caused by failure. Therefore, the daily inspection of liquid level meter is very important and should be given enough attention and concern.

I. Installation of mass flow meters1. Mass flow meter is through the vibration of the sensor to achieve the measurement, in order to prevent external interference, the instrument installation site can not have a large source of vibration, and take reinforcement measures to stabilize the instrument near the pipeline.2. Mass flow meter work to use the excitation of the magnetic field, so it can not be installed in large transformers, motors, pumps and other equipment to produce a large magnetic field near, at least and they have to maintain a distance of 0.6 ~ 1.0m or more, in order to avoid interference.3. Mass flow meter sensor and pipeline connection should not be stress (mainly torque), for this reason, the sensor should be in a free state coal connected to the pipeline has been well supported.4 straight pipe mass flow meter is best installed vertically, so that the instrument can be deactivated to make the measurement of pipeline emptying, so as to avoid scaling, if installed horizontally, it is necessary to two measurement pipe at the same level.5. Bend flowmeter horizontal installation, if the measurement of liquid, the shell should be facing down to avoid the accumulation of gas in the measurement tube, if the measurement of gas, the shell should be facing up to avoid the accumulation of condensate measurement tube.6. Sensor and transmitter connection cable should be specified in the manual, because the transmitter accepts low-level signals, so it can not be too long, and should use the thermal mass flow meter manufacturer's special cable.II. Routine maintenance of the mass flow meter1. Zero check and adjustment.Check every two to three months, in the case of production allows, the installation of important monitoring points in the quality of the flowmeter, the zero check time should be appropriately shortened zero drift value is large, should first check the cause, to be ruled out, and then zero point adjustment.2. Flowmeter sealing performance inspection and maintenanceFlowmeter in corrosive gases, humidity or dusty environment, we should always pay attention to check the sensor junction seal intact, in order to prevent corrosion of the terminals, resulting in the instrument can not operate normally!3. Check the working parametersa. Often pay attention to whether the set operating parameters have changed, the display of the flow rate, density, temperature value is normalb. When the flow meter is running, pay attention to check the pressure difference before and after the flow meter.c. Check the flow transmitter menu at any time whether the working parameters are normal4. Regularly observe the flowmeter fault indication.According to the type of flowmeter, specifications, thermal mass flow meter manufacturers of different fault display and content are different, the different fault alarm instructions, you can check the product manual to determine the cause of the failure, processing.5. Flowmeter cycle calibration.Flowmeter use for a period of time, according to the requirements of the periodic calibration, in order to determine the performance of the flowmeter, according to the quality of the flowmeter national calibration procedures, the quality of the flowmeter calibration cycle according to the use of the situation is determined6. flowmeter visual inspectionCheck the meter indication, whether the cumulative value is consistent, sweep away the dust and dirt, instrumentation, electrical junction box and component box sealing is good, flowmeter line with or without damage and corrosion, flowmeter meter body and connectors with or without damage and corrosion, check the flowmeter and the process piping connection with or without leakage, check the heat preservation and accompanying heat with or without damage.III. Mass Flow Meter Common Failureshardware failureThis kind of failure is more harmful, and not easy to judge, it is more complicated to deal with.a. Installation is not standardized: non-standard installation can directly lead to zero drift of the flowmeter, bringing measurement error; if the installation error is the flowmeter can not work. b. Wiring problems: when the wiring is wrong, the transmitter can not work.b. Wiring problems: wiring errors when the transmitter can not work. If the wiring is not serious, resulting in coil circuit resistance value is too large or too small, the lesser brought about by the measurement error, the heavier the transmitter can not work.c. Changes in the process medium: If the measurement medium appears to be trapped gas, gasification or two-phase flow and other phenomena, the transmitter will send out an alarm; serious transmitter stop working.d. Transmitter failure: a part of the transmitter device failure may lead to transmitter zero drift over the limit to bring the measurement error; or a part of the device failure, resulting in transmitter failure can not work; or some kind of functional failure of the transmitter. This type of failure can be simply judged by replacing the transmitter.e. Sensor failure: sensor measurement tube if leakage, the measurement medium will be filled with the case leading to the measurement tube vibration damping increases, the transmitter drive voltage soars; or the medium temperature is too high, damage to the measurement tube on the coil, resulting in drive, detection voltage imbalance. This type of failure is the most difficult to judge, because it rarely occurs, and the transmitter does not correspond to the alarm information, can only be based on experience and a combination of factors to determine.software failurea. Wrong parameter settings: incorrect flow and density coefficients are bound to cause measurement errors; if the coefficient of difference is too large, the transmitter alarm and stop working.b. Zero calibration error: flowmeter installation (including new installation and removal and reinstallation) must be strictly in accordance with the requirements of the zero calibration, otherwise it will cause errors; long-term operation of the flowmeter has not been disassembled should also be zero calibration on a regular basis in order to eliminate the cumulative effect of the installation of stress. Special attention should be paid to, if there is a flow of zero calibration, it is possible to destroy some of the memory parameters. c. I / O configuration error: I / O (input / output) is wrong, the flowmeter system can work normally, but the secondary table is displayed abnormally. If the output adopts frequency signal, the pulse equivalent of both ends should be the same; if RS-485 communication is used, the communication protocol should be ensured.