How to solve the problem of intelligent vortex flow meter pipeline with flow meter but no output

Abstract: The intelligent vortex flowmeter meter pipeline has a flow meter without output. How to solve the information is provided by the excellent flowmeter and flowmeter production and quotation manufacturers. The intelligent vortex flowmeter is mainly used for the flow measurement of the medium fluid in the industrial pipeline, such as gas, liquid, steam and other media. No moving mechanical parts, so high reliability and low maintenance. Instrument parameters can be stable for a long time. The vortex flowmeter adopts piezoelectric stress type. More flowmeter manufacturers choose models and price quotations. You are welcome to inquire. The following is how to solve the problem of intelligent vortex flowmeter pipeline with flow meter but no output. The intelligent vortex flowmeter is mainly used for the flow measurement of the medium fluid in the industrial pipeline, such as gas, liquid, steam and other media. No moving mechanical parts, so high reliability and low maintenance. Instrument parameters can be stable for a long time. The vortex flowmeter adopts piezoelectric stress sensor, which has high reliability and can work in the working temperature range of -20℃～+250℃. (1) The possible cause of the failure is that the power supply is faulty or the power supply is not connected. Therefore, it is necessary to check whether the power supply voltage meets the requirements and whether the power supply polarity is correct. Such as the current output type vortex flowmeter, if the polarity of the power supply is reversed, the output current is 0mA instead of 4mA (2) The possible cause of the failure is the disconnection of the connecting cable or the wrong wiring. It is necessary to check whether the line is unblocked, and if there is a fault, rewire and check. (3) The possible cause of the failure is that the ripple coefficient of the power supply is too large. A filter electrolytic capacitor can be used for testing during inspection. Generally, a capacitor is required.³100μF, 50V. (4) The possible cause of the failure is that a certain stage of the vortex flowmeter amplifying board is faulty. The changes of the output can be observed by observing the waveforms of the input and output terminals of the amplifier, or by injecting the human body induction signal from the input terminal. If there is no change at the output, the amplifier is not working properly. In the actual maintenance, other types of flowmeter mainboards on site can also be used for inspection. It is determined that the amplifying plate is faulty and should be replaced. (5) The possible cause of the failure is the damage of the vortex flowmeter sensor. The detection method is to first increase the flow rate, and replace the vortex main board with the same type of vortex flowmeter. If the main board failure is eliminated, check the generator. The damage of the vortex flowmeter occurs mostly in the steam measurement system. Because the technician opens the valve too fast, the high temperature and high pressure water vapor entrains the condensed water and violently impacts the vortex generator, causing its damage, which is often said“water hammer”Phenomenon. Therefore, it is necessary to open the guide shower to drain the condensed water, and then slowly open the steam valve to avoid damage to the vortex generator. (6) The possible cause of the failure is that the pipeline flow is too low and does not enter the measurement range. You can increase the flow rate to see the response of the flowmeter. Tap regularly and continuously next to the pipe near the vortex flowmeter, and the flow rate display will appear regardless of the model of the vortex flowmeter. If the measured medium is a liquid, it is best to test with an empty tube, because the liquid itself is a shock absorber. The method of troubleshooting is to replace the flowmeter with a smaller diameter or increase the flow when the process conditions allow. (7) The possible cause of the failure is whether the gap between the occurrence body and the casing is stuck by fine particles. This kind of phenomenon generally occurs after the normal operation, and the machine is turned off and on again. If so, in the case of confirming that the conversion amplifier and the generator are intact, especially the measurement medium is liquid, it can generally be regarded as this kind of failure. The treatment method is to open the flow rate as large as possible if the production process conditions permit, and use a wooden or rubber hammer to strike vertically on the welding table below the flowmeter, so that the negative pressure generated by the high-speed fluid will take away the fine solid particles. If disassembly and cleaning are allowed on site, the generator can be disassembled, but it is required to be familiar with the structure of the flowmeter, especially the sealing gasket and pressure plate screws, etc., must be installed in strict accordance with the requirements of the instruction manual. At the same time, pay attention to the re-installation of the generator after disassembly, which may bring some changes to the flow coefficient. Although the change is not large, it needs to be corrected. (8) Check whether the parameter settings are wrong according to the manual of the vortex flowmeter, and if so, correct it. Haines Automation Instrumentation is a professional manufacturer of electromagnetic flowmeters, turbine flowmeters, vortex flowmeters, magnetic flap level gauges, thermocouples, thermal resistances, bimetal thermometers and pressure gauges of various specifications, etc., as well as the production of various As a manufacturer of non-standard flowmeters, the company has advanced management level, modern professional production equipment, and accurate calibration devices. The above is the whole content of this article. You are welcome to inquire about the flowmeter selection and quotation of our factory. 'How to solve the problem of intelligent vortex flow meter pipeline with flow meter but no output'

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