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Bug in SAC rate calculation

Posted: Tue Apr 11, 2017 10:33 pm
by N1Diver
Hi, this looks like a little bug.

If you have used 2 cylinders on a dive the SAC calculation seems skewed on MacDive on the MAC.

Example.
You use 2 cylinders during a dive. You used gas 1 for 30 minutes of a 40 minute dive, then swapped to gas 2 for the remainder.

I think the SAC rate that is shown on the main page is taking the gas consumption of gas 1 and working out the SAC based on the whole 40 minute dive. Where as if you go into the individual dive, and go to the Gases tab, select your first gas, you see the SAC based on the 30 minutes of use.

Re: Bug in SAC rate calculation

Posted: Wed Apr 12, 2017 4:33 am
by nick
The main table has a weighted SAC rate for the dive. The gas tab is the individual rate for a specific tank.

Thanks.