differential pressure to cfm airflow measurement devices

If you have any questions regarding air velocity meters / anemometers please don't hesitate to speak with one of our engineers by e-mailing us at or calling 1-80. Environmental wind and temperature testing/analysis.Ventilation system installation, servicing, and analysis.

Fume hood testing, installation, and verification.HVAC installation, repair, diagnostics, and optimization.Other anemometers, designed for HVAC applications, may includeĪir capture hoods to isolate air emerging from vents and registers.Īs with many modern instruments, some anemometers include advanced features and functions such as data logging and communications which allow data to be stored on the instrument or shared with computers The pitot tube must be inserted correctly for accurate velocity measurements.Īnemometers are often combined with other technologies, such as temperature and humidity sensors, to increase the instrument's versatility. Which is detected by the manometer and converted into units of wind speed. Hot wire anemometers require correctionsĭifferential Pressure: Differential pressure anemometers use a pitot tube to direct air flow to a precision pressure measuring instrument (manometer). Hot wire type sensors areīetter at low airflow measurements than other technologies, and are commonly applied to air velocities below 100 feet per minute because of their sensitivity. The current is proportional to an output voltage sent to a meter or display. Increases, the electrical current must also increase to maintain the temperature of the element. Air flowing past the wire has a cooling effect on the wire. Hot Wire: Hot wire anemometers use a very fine wire electrically heated up to some temperature above the ambient. It's moving, always faces into one of the cups rotating eliminating the need to face into the wind. As with vane anemometers, the cups rotate at a speed proportional to wind speed. Vane anemometers must be held into the direction of airflow to work properly.Ĭup: Consists of cups mounted at equal angles on horizontal arms. Differential pressure (which uses pitot tube) is an accepted standard for measuring airflow, but it is. Vane anemometers measure airflow independent of the airĭensity making them ideal for many applications where measurement without the need for corrections is desired. equipment that traditional devices may be applied to. As the air moves past the propeller it rotates at a speed proportional to wind speed. Vane: Uses a vertically mounted propeller. There are a number of technologies used with modern anemometers: In fact, any application in which the movement of air is a primary concern can benefit from a quality anemometer. However, anemometers are also critical instruments for applications such as balancing forced hot air HVAC systems, the analysis of ventilation systems, aerodynamics testing, and fume hood verification. Typically, anemometers are used with weather stations to determine the speed of wind. Air velocity meters, commonly called anemometers, are used to measure the speed and/or volume of air movement.

Differential pressure to cfm airflow measurement devices