What are the faults of the precession vortex flowmeter? Can the problem be solved?

by:Kaidi Sensors     2022-05-12
Precession vortex flowmeter is one of the commonly used flowmeters for measuring gas. It is inevitable that problems will occur during operation or for a long time. It does not mean that the quality of the products produced by the manufacturer has problems. No matter what is used for a long time, there will be some small problems. Therefore, it is the kingly way to learn some simple maintenance methods and skills of precession vortex flowmeters. Some people may say that there are problems. It is also correct to ask the manufacturer to repair it. But if it's just a small problem, waiting for the manufacturer to repair it is a waste of time and delays production. It's really worth the loss! Share with you what are the faults of the precession vortex flowmeter? Can the problem be solved? The faults that are easy to occur during operation are mainly due to the following five points: 1. The temperature and pressure of the precession vortex flowmeter are normal, and there is no instantaneous flow display. show. One is to reduce the lower limit cutoff frequency of the flowmeter (so that the flowmeter can be used, but it will reduce the accuracy of the flowmeter). Second, is to replace the small-scale flowmeter. 2. The preamplifier has no current input. The flowmeter has no power supply, and the flowmeter is powered by 24V external power supply or battery. 3. The preamplifier has no frequency output. Replaceable preamplifier. 4. The main precession vortex flowmeter plate is damaged. Replaceable flowmeter motherboard. 3. In the use of the flowmeter, there is a fault due to the lack of medium flow in the pipeline where the flowmeter is located or the flow rate is lower than the lower limit value. The reason for this kind of failure is that the gas consumption through the pipeline is too small, which is lower than the lower limit value measured by the instrument itself, so the flowmeter has no flow display. At this time, the air discharge valve should be opened to artificially increase the gas volume to observe whether the instrument is working normally; Correctly determine the cause of the failure. Fourth, in the use of the flowmeter, there is a problem of water or other debris in the gas channel of the flowmeter. Such problems are caused by the presence of accumulated water in the measured gas, which affects the normal operation of the flow sensor, or the impurity in the gas blocks the vortex generator in the gas channel, causing the flowmeter to fail. In case of such problems, the flowmeter should be removed, the accumulated water inside the channel should be removed, and the blocked foreign objects should be checked and eliminated, and attention should be paid to troubleshooting such problems in future use. 5. In the failure of the flow meter, there are components damaged, such as sensors, preamplifiers, current modules, etc., which belong to the normal loss of instrument components, and the corresponding accessories can be replaced. Maintenance of the precession vortex gas flowmeter Corresponding measures for the failure of the precession vortex gas flowmeter We have formulated corresponding measures according to some failures of the precession vortex gas flowmeter in the verification above. Daily maintenance of precession vortex gas flowmeter The daily maintenance of the flowmeter should do the following. ①Strengthen the technical training of employees and enhance the quality awareness of employees operating according to standards. ②Strictly implement the equipment maintenance system, organize special personnel to maintain, and ensure the good operation of the equipment. ③ Improve the quality assessment system to further enhance the sense of responsibility of employees. The above is a brief introduction to the precession vortex flowmeters that are prone to failures. In addition, it is necessary to pay attention to the operation of the precession vortex flowmeter during long-term and high-load operation.
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