What knowledge points do you need to know when choosing a flow meter?

Case introduction

When selecting a flow meter, the appropriate flow meter should be selected based on the actual parameters on site. Today, we will take the Famimet electromagnetic flowmeter as an example to explain the flowmeter selection principles in detail.

1. Selection of models

In ordinary situations, you can choose intelligent liquid crystal integrated electromagnetic flowmeter. In situations where it is inconvenient to read data, you can choose split electromagnetic flowmeter, small tube Choose pipe segment connection for smaller diameters, and plug-in connection for larger pipe diameters.

2. Selection of caliber

Select a sensor with the same caliber as the connected process pipeline. The prerequisite for selecting the same caliber is that the flow rate of the fluid in the pipe must be between 0.3m/s-10m/s. Within the range; its applicable state is for use in the early stage of the project and the fluid flow rate in the pipe is at a low state. 3. Selection of lining.

The selection of lining should be based on the actual conditions of the medium being measured, such as the corrosiveness and temperature of the medium. Choosing the appropriate lining can ensure the normal use of the flow meter.

IV. Selection of electrode materials

The selection of electrode materials should be based on the corrosiveness of the medium to be measured. The details of the medium should be informed to the manufacturer when communicating with the manufacturer in the early stage.

5. Selection of protection level

There are many types of protection levels for electromagnetic flowmeters. Different installation situations require different levels of protection, which should be selected according to the installation environment.

6. Power supply mode: Choose electromagnetic flowmeters with different power supply modes according to the customer’s on-site working conditions.