Surface Air Consumption Calculator

Surface Air Consumption Calculator. Assuming a square dive profile calculate your air consumption given the following depths and dive times assume a breathing rate of 25L/min On the surface (0m) 12mins 15mins 20mins 43mins Depth of 7m 4mins 11mins 20mins 35mins Depth of 186m 6mins 13mins 27mins.

SCR = (1P2/P1) x Vf/Aa/Tm Where P1 = pressure in psi at beginning of test dive P2 = pressure in psi at end of test dive Vf = actual volume of air in tank in cu ft Aa = pressure in absolute atmospheres Tm = time of dive in minutes Step 1 Establish your Vf the volume of air in cubic feet that you started with.

Surface Air Consumption Rate Calculator (SAC)

This is where Surface Air Consumption or SAC rate comes in Surface Air Consumption (SAC) Rate SAC rate is nothing more than RMV adjusted for ambient pressure at sea level In other words if your RMV at a depth of four atmospheres is eight liters per minute it means your SAC rate is one fourth of that or two liters per minute.

Suunto D5 Features Gas consumption

The formula looks like this SAC (cfm) = ( (PSI used / working pressure) X cylinder capacity) / ( (depth in feet + 33) / 33) all divided by the number of minutes Granted that’s pretty hard to read but I didn’t feel like figuring out how to better display math in a blog post It’s beside the point anyway.

What is a SAC Rate and how do I calculate mine

It’s very good for realtime measurement the use of this software is very professional.