Q. What is a air flow meter used for?

Answer

Ventilation and air conditioning systems can benefit from the use of air flow sensors and meters for accurate flow monitoring and control. The static pressure of the air flow, the average air velocity, and the total pressure are all easily measured with air flow sensors. Volume flow is calculated by a fan constant (K factor) that may be adjusted in the A2G-25 air flow meters to work with any manufacturer's fans. It is possible to choose between electrical output signals of 0...10 V and 4...20 mA through jumpers on the instrument's circuit board. The observed pressure difference and the fan characteristic (K factor) of the coupled radial fans can be used by flow sensors for air flow monitoring in ventilation and air conditioning systems to derive the volume flow.