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What will affect the accuracy of vortex flow meter?
sales01@cxflowmeter.com
Vortex flow meters are mainly used for flow measurement of medium fluids in industrial pipelines, such as gas, liquid, steam and other media. It is characterized by small pressure loss, large measuring range and high precision. When measuring volume flow under operating conditions, it is virtually unaffected by parameters such as fluid density, pressure and temperature. There are no moving mechanical parts, so reliability and maintenance costs are low. Instrument parameters can be long-term stable. The instrument adopts piezoelectric stress sensor, which is reliable and can work in the working temperature range of -25℃~320℃. There are analog standard signal and digital pulse signal output, which is convenient to use with computer digital system. It is a relatively advanced and ideal flowmeter.
Vortex flow meters are mainly used for flow measurement of medium fluids in industrial pipelines, such as gas, liquid, steam and other media. It is characterized by small pressure loss, large measuring range and high precision. When measuring volume flow under operating conditions, it is virtually unaffected by parameters such as fluid density, pressure and temperature. There are no moving mechanical parts, so reliability and maintenance costs are low. Instrument parameters can be long-term stable. The instrument adopts piezoelectric stress sensor, which is reliable and can work in the working temperature range of -25℃~320℃. There are analog standard signal and digital pulse signal output, which is convenient to use with computer digital system. It is a relatively advanced and ideal flowmeter.
1) The vortex flowmeter is not suitable to be installed in the occasion of strong vibration, but in the occasion of frequent changes of the magnetic field, the vortex flowmeter will measure the signal output of the normal value, which is the general knowledge of users. Practice has proved that in the field without airflow, when the vortex flow sensor is in a changing magnetic field, at the moment when the magnetic field changes, the vortex flowmeter sensor will sense the error signal and output. When the change is over, the meter is in a stable state. state. When there is a magnetic field, the meter will output a normal signal.
2) Due to the high temperature and high humidity of coke oven gas when it leaves the factory, there will be moisture in the gas transportation process. The airflow moves the water back and forth, creating a pulsating flow. When the vortex flow sensor is in this fluid state, the output data fluctuates greatly, and the fluctuation is large, which cannot reflect the production state at all.
3) Because the coke oven gas has many impurities, it is easy to crystallize, and the impurities condense on the sensing head, resulting in inaccurate measurement. As the temperature rises, the impurities volatilize, the sensitivity increases, and the signal increases; on the contrary, it decreases. This can lead to data instability.
4) The pressure line is not firm during the wiring process of the instrument, resulting in intermittent signals during the transmission process.
5) The ground wire of the instrument does not meet the requirements of the specification, so that the 50Hz interference in the strong current enters, and the normal signal is output when the normal signal is 50Hz, otherwise the error signal is output.
If you want to know more about vortex flow meter, please contact winny:sales01@cxflowmeter.com
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