On Fri, Jan 16, 2015 at 7:35 PM, Robert Helling <[email protected]> wrote: > Hi, > > On 16 Jan 2015, at 15:44, Anton Lundin <[email protected]> wrote: > > As a side-note, I think the o2 consumption should default to something a > tad higher, about 1000ml or so is probably a good default, and i don't > know which pscr who have a 1/10 dump ratio, but the rb80 have 1/8 dump > ratio and my guess is that it and its clones are the most common pscr on > the market.
RB80/RB2000 has a 1:10 ratio not 1:8 so the various clones available: RON, Satori, NT1, Hyperion ecc... The Tres Presidentes I own has a 1:8 ratio so dump ratio should be set via UI. On PSCR UTD training and I guess GUE training O2 metabolic consumption default is 0,8l/min > another question: With a pSCR it could be possible to get into a low pO2 > situation, so in planning a dive we should warn in that case as we do for > high pO2. Which value is the minimal acceptable? Wikipedia mentions 0.16bar. > Yes the O2 drop effect bring to have a MiOD (Minimum Operative Depth) for every gas. 0,16 is minimum PO2 to sustain life. Usually all tables reports MiOD for 0,16 and 0,21. Standard O2 drop formula is: P02real = FO2 (K * RV * ATA +1) - 1 / K * RV Where: RV = ratio between inner and outher reb bellows (r in your formula). K = K factor = SAC / =2 consumption (metabolized) per minute. A tipycal value would be 20/0,8 = 25 The there is the Touzil system but I cannot help there. -- Davide https://vimeo.com/bocio/videos _______________________________________________ subsurface mailing list [email protected] http://lists.subsurface-divelog.org/cgi-bin/mailman/listinfo/subsurface
