This is a measurement of the quantity of moving air through an air duct, passageway, or enclosure. Email a Friend Air Velocity, (Low friction ball conventional twist wheel) 80 to 5916 ft/min 0.4 to 30 m/s Units of Measure, m/s, km/s, ft/min, mile/hr, knotts. It also possesses various features such as Beaufort scale, switch between Celsius and Fahrenheit, switch between metric and imperial system, or the battery status indicator. Cubic Feet per Minute (CFM) or Cubic Meters per Minute (CMM) are units of measure for Air Volume measurements. What is digital anemometer?ĭigital Anemometer allows measuring atmospheric effects, namely wind velocity, temperature, and humidity for better data analysis. The large, easy-to-read backlit LCD includes primary and secondary displays plus numerous status indicators. This instrument measures Air Velocity, Air Flow (volume) and Temperature. Its great for traversing a duct and automatically calculating CFM without the. 3 Simple Ways to Measure Air Flow Anemometers tell you air velocity. What is CFM anemometer?Ĭongratulations on your purchase of the Extech AN100 CFM/CMM Thermo Anemometer. The compact probe tip makes measuring air velocity directly in the duct a breeze. Start with the total volume of air (in cubic feet), divide by the exchange rate (how quickly you want to replace the air), and the result is the total CFM you need for your system. To calculate Air Flow in Cubic Feet per Minute (CFM), determine the Flow Velocity in feet per minute, then multiply this figure by the Duct Cross Sectional Area.
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