FPM to CFM conversion formulating
Anyone know the formula on this conversion...I'm using a handheld Testo anemeter with a wind vane to measure airflow know and want to converr fpms to cfms to address balancing
Thanks In Advance......
Fpm x area in square feet of duct
What if it's a round supply?
I thought there was some 6:1 ratio of FPMS to CFMS. I'm.not trying to do a bunch of transvere magnahelic readings either ... I was looking for the quick diagnosis on airflow balancing that's why I really like using the Testo handheld to offer up a diagnosis for my customer.
The Fieldpiece STA2 in duct hot-wire anemometer quickly calculates CFM from air velocity and free area. And with the intuitive interface, the STA2 makes it easy to capture the correct data.
•Measures air velocity in FPM and temperature
•Calculates CFM in round an square duct
•Slim 38" telescoping probe for in duct traversing
•Fast response time
•Dual display for combo of real-time CFM, air velocity, or temp
•Depth and direction indicators
•Minimizes turbulence effect with time/test point averages
•Hands-free testing with stabilizing cone and magnetic hanger
With ease, techs can input free area, and the STA2 automatically averages multiple test points and continually calculates and displays CFM.
RD Holder owner of shop.rdholder.com
One of the rare times a solicitation csn be right on point
Thanks rd ....maybe I'll give yr meter a whirl...