Choosing a flowmeter

Choosing a flowmeter is no easy task... From the simple application, where several measurement principles are possible, to the complex application, where you need to define your requirements, process characteristics, influencing variables, installation conditions, etc. to make the optimum choice, knowledge of the fluid, installation and current principles is required.

To help readers define their application and needs, or choose their own flowmeter, this article explains and details, point by point, all the precautions to be taken with regard to fluid characteristics, installation and the specific features of a flowmeter.

This article also describes the measurement principles involved in closed-pipe flowmetering, free-surface water flowmetering and solids flowmetering. The application limits of all current principles are listed in various tables: fluid type, Reynolds number, diameter, flow range and measurement dynamics, accuracy, pressure, temperature, straight lengths, etc.