Are you sure you´ve connected the tubes the right way to the sensor? I actually would expect a near lineair curve.

I was just using the formula you mentioned. So you would be using a quadratic interpolation, which I asume would be a good approximation. The formula would then be :Level = 0,000287*pressure²+0,613*pressure.

You can easiliy use Wolfram Alpha for this. Use this input. This gives you a = 67/233100 (approx. 0,000287) and b = 14279/23310 (approx 0,613). c should be zero because y=0 at x=0. Good luck!

Thank you for the reply. Unfortunately, that post only notes the outer dimensions. I need to know the location of the screw holes.

Hello, I'm considering an Airplex Modularity 140 to place at the front intake of my case. But unfortunately, I cannot find any drawing of it with the exact locations of the fan mounting holes. I need these dimensions because it will be a tight fit. Could someone supply them maybe? And I was also wondering why, although there is a 280 and 120, there is no Airplex radical 140. Thanks in advance!