Air Flow Measurement Grid

The log linear method provides high accuracy 3 in flow totalization by measuring air flow closest the edges of the duct space preferentially.

Air flow measurement grid.

This article defines air flow rate or cubic feet per minute cfm as the term is used to describe building air conditioners heating systems or building air movement rates. The series afg flow grid is an outstanding simple yet accurate cost effective alternative to other duct mounted pressure sensors. Read the screen on the bottom of the hood to get your measurement. We include examples of manufacturer s air flow rate or cfm data for hvac equipment like air conditioners and furnaces.

True flow grid remember to call for best pricing. The model 160g averaging air flow grid utilizes 16 sensing points to provide precision sensing across its 16 5 41 9 cm length and width. Air flow rate data. The grid lines which lay out the duct flow measurement points are traverses.

Make sure air is not able to escape from the top of the hood as this will make your air flow measurement less accurate. Industrial air velocity temperature transmitter the preferential shapes of ducts then are round square and rectangular in that order of efficiency. Model 160g extends over 50 to aid in air flow output checks averaging air flow grid is a precision sensing instrument used to measure face air velocity on grills diffusers registers exhaust hoods coils filters dampers and similar restrictions. It will look like a square or rectangular piece of metal with slats running across it.

Once installed and connected to a suitable measuring instrument the device will provide years of trouble free monitoring of both air and gas flow. You can also use the screw on telescope can be extended to 1800 mm to carry out volume flow measurements on high ceiling diffusers. You ll typically find the exhaust fan grille on the ceiling. The ball pivot joint and tightening nut allows the user to position the sensing grid at any angle in any direction for ease of use in hard to reach locations.

The grid lines which lay out the duct flow measurement points are traverses. The trueflow air handler flow meter is designed to provide a simple and accurate measurement of airflow through residential air handlers. Round ducts log linear traverse for round ducts two diameter approach.