Selection of the correct type of flowmeter presents a challenge to even the most experienced engineer because of the wide range of flowmeters and equipment available today.
It is however a critical step, one that will affect the quality of your process for years.
Choosing the wrong meter can lead to inaccurate readings, high maintenance costs, and expensive downtime
Factors to be considered in selecting a flowmeter are: What is the fluid being measured by the flowmeter or flowmeters (air,water,etc…)? Do you require rate measurement and/or totalization from the flow meter? If the liquid is not water, what viscosity is the liquid? Cleanliness of fluid or entrained solids Type of readout - Do you require a local display on the flow meter or do you need an electronic signal output? What is the minimum and maximum flowrate for the flow meter? What is the minimum and maximum process pressure? What is the minimum and maximum process temperature? Is the fluid chemically compatible with the flowmeter wetted parts? If this is a process application, what is the size of the pipe? External environmental requirements due to corrosive or hazardous atmosphere.