When the flow meter is selected, four factors should be considered

Flow meters often give people a lot of trouble when they buy, because people face a variety of flow meters, it is difficult to make choices. But in fact grasp some of the calculations, knowing what factors to consider, flow meter purchase becomes much simpler.

1, select the instrument type. You can first consider the performance of the instrument, mainly some of the parameters of the instrument, such as accuracy, repeatability, linearity, range, flow range, signal output characteristics, response time. These parameters can directly reflect the performance of the meter.

2. The fluid characteristics of the flow meter are also worth considering, such as temperature, pressure, density, viscosity, chemical corrosion, abrasiveness, scaling, miscibility, phase change, conductivity, sound velocity, thermal conductivity, specific heat capacity, and so on.

3. After the instrument is installed, it needs to run normally to ensure the smooth progress of follow-up work. Therefore, it is necessary to fully consider the environmental conditions and installation conditions when purchasing. Such as the environmental temperature, humidity, electromagnetic interference, safety, explosion-proof, pipeline vibration and other requirements, such as when installing the pipe layout direction, the upper and lower side straight pipe length, pipe diameter, maintenance space, power, grounding and so on.

4, after the choice of flow meter type, you need to analyze and compare the cost of the primary selection of the instrument in depth, although you can not blindly pursue the low price and ignore the quality, but not the more expensive as possible. According to the actual situation, the instrument purchase fees, installation fees, operating fees, calibration fees, maintenance fees, instrument life and other comprehensive analysis, and ultimately choose to buy the right product.