The user manual deals explicitly with the logging of sidemount dives. Kind regards , willem
On 08 May 2017 22:02, "Linus Torvalds" <[email protected]> wrote: > On Mon, May 8, 2017 at 11:47 AM, Ryan McLean <[email protected]> wrote: > > I performed a side-mount dive with 2x10L 232 Bar Steel Cylinders added in > > the Equipment Page as two separate line items > > > > On both tanks: > > Starting Pressure: 200 > > Final Pressure: 120 > > Dive Time (62m 20Sec) > > Max Depth 7.2m > > Avg Depth: 5m > > > > Looking at the info Page I see: > > ******** > > Gases Used > > Air > > Air > > > > Gas Consumed > > 720L > > Yeah, you don't have a gas switch event, so subsurface thinks the > second tank is basically unused. > > > When I look at the Stats Page I see > > ******** > > Gas Comsumed: > > 720L > > Same thinghere. > > You can add a fake gas switch event on the profile, and you'll get the > expected numbers, I think. > > I do *not* know what the right model for "use two cylinders at the > same time" is, although the other hack (right now) is to simply > consider your dual cylinders to be one single one (of twice the size). > But that only works when the beginning/ending pressures match (like > they happen to do for you), ie when you can basically consider the > side mount cylinders to be one single combined manifold. > > Although your expected numbers are kind of wrong: > > > Gas Consumed > > 800L > > 800L > > > > SAC > > 17 > > > > Gas Comsumed: > > 1600L > > > > SAC > > 17 > > Your 800l is wrongly calculated. > > You seem to think that one atmosphere is 1 bar. That's not true. > > You also don't take the compressibility of air into account. > > I suspect the subsurface number of 720.9l per cylinder is actually the > correct one. You can hover over the equipment fields to see the actual > conversion to liters at the pressures in question. > > Linus > _______________________________________________ > subsurface mailing list > [email protected] > http://lists.subsurface-divelog.org/cgi-bin/mailman/listinfo/subsurface >
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