Flow sensor is one of the most important instrument in industrial measurement, is widely used in petroleum, petrochemical industry, water treatment, food and beverage, pharmaceutical, energy, metallurgy, pulp papermaking and building materials industries. With the development of the industry, the scope of the accuracy of the flow sensor and demand is higher and higher, so what are the factors affecting the accuracy of the flow sensor?

     Precision instrument, of course, flow meter, which due to the rough parts, assembly accuracy and wear, the decreased flow statement itself precision is not high or precision, make the hair oil products quantity is not accurate. So when choosing flow sensor should choose high precision. At present our country requirements work with flow sensor precision is + / - 0.5%, and in use should be according to the provisions of periodic verification. Followed by the installation process, the flow sensor precision is high, but because of the improper installation technology or unreasonable, the flowmeter system error is produced. Such as straight pipe flow meter without enough before will produce eddy current phenomenon, pipeline elbow long can increase the flow resistance, ensure no flow sensor working pressure requirements, etc. Can make the flow sensor error value. Of course, medium, temperature, pressure difference and flow velocity, etc., these will influence the accuracy of the flow sensor.

     Flow sensor has a lot of kinds, the accuracy of all kinds of flow sensor is not the same, customers when selecting a flow sensor can consult factory carefully, choose suitable flow sensor.