PTS Flowbench Forum

I got my orifice bench up and running. I have a friend with a calibration plate that is calibrated for 28".
Is there an accurate way to calibrate my machine at 14" or 16" using that? How do I work the conversion?
Any other suggestions on how I might get real cfm numbers from mine? Aside from going digital..

The conversion is fairly straight forward, flow is proportional to the square root of the depression so if for example you have a calibration plate that's known to flow 200crm at 28" and you want to know what it would flow at 16" you multiply 200 times the square root of 16/28 which in this particular example works out to 151.2 cfm

Thank You sir.
Very helpful info as usual