Effect of pressure on flow indication

Effect of pressure on flow indication. The technical documents such as samples and instruction manuals of early instrument manufacturers usually claim that the flow indication value of the Coriolis mass flowmeter is not affected by changes in fluid temperature, pressure, density and viscosity, but practice proves that this is not the case. Because of the high measurement accuracy of this kind of flowmeter, a large part of it is used for custody transfer. A pipeline connects the two sides of the transfer, and a set of flow meters is installed on both sides of the supply and demand, and they are often products of the same model and specification from the same manufacturer. Due to the long transportation distance, the temperature, pressure, density, viscosity and other parameters of the fluid will change to a certain extent, which will cause measurement differences [38, 39]. The manufacturer is in a very passive position and has to invest manpower and financial resources for further research. , and received a certain effect. For example, ^11^0 ^0^011 company has expressed the influence of hydrostatic pressure on its different types of products in its new catalog. Table 3.13 lists the effects of medium pressure changes and medium temperature changes for some products. Since the pressure used in the factory inspection is 0, 1〜0,21^? 3. Therefore, when the actual use pressure is high, the actual impact is considerable. There are two common methods for compensating for pressure effects. One is online compensation, which is suitable for products with pressure compensation function in the flow transmitter. Install another pressure transmitter and send the signal to the flow converter, and then specify the compensation function and pressure when configuring the converter. The upper and lower limit pressure values ​​corresponding to the signal'. ]. Another method is offline compensation, which is suitable for objects with relatively stable pressure. The flow correction value is calculated from the common pressure value, and then the flow calibration coefficient is corrected in the converter configuration. Temperature changes cannot be corrected because their influence values ​​are both positive and negative.

mass flow meter u shape coriolis mass flow meter, as the name suggests, find extensive use in fork density meter manufacturer institutions. Since coriolis mass flow meter emerson has become much dependent on technology in today's world, there is wide use of such mass flow meter.

The Global mass flow meter Leader. Beijing Sincerity Automatic Equipment Co., Ltd will build a unique portfolio of Sincerity Group and related brands, striving to surpass our competitors in quality, innovation and value, and elevating our image to become the mass flow meter company most customer turn to worldwide.

Our company is professional in selling mass flow meter as well as providing a series of relevant services.

mass flow meter are less complex compared with endress hauser ultrasonic flow meter.