On 11 December 2017 at 15:59, Anton Lundin <[email protected]> wrote: > On 11 December, 2017 - Davide DB wrote: > >> On 11 December 2017 at 10:16, Anton Lundin <[email protected]> wrote: >> >> I calibrate my two Petrels ALWAYS when I assemble my unit as part of >> >> my checklist and ALWAYS the same day I dive and. No calibration No >> >> party. >> >> I made other dives and all of them show the same error. Shearwater >> >> desktop tell me that everything is ok (like my Petrel underwater) >> >> while Subsurface reports pO2 over 1.6. >> >> Thank you for the detailed explanation. >> >> Where do we go from here? >> > >> > Is this a divecan unit or something? >> > >> > I'm just guessing that it might affect how/where the cal factors are >> > stored. >> > >> > >> > //Anton >> >> Yes, divecan unit. > > There we go. Thats probably why its the factory default cal factors that > are stored in the header, and not the real ones. It might be that the DC > doesn't even have them, and its only the sensor board which know them > for real. > > > My suggestion then is to not show individual sensor ppo2's, if the cal > factor is 2100, and just emit the average ppo2 then. > > At least that one is accurate. > > > The best would be if we had a interface which let us both expose the > average ppo2 and the raw mV values. > > > //Anton
Hi Anton, The strange thing is that also the other dataset from my dive friends came from divecan units (JJ). IIRC those dataset haven't this problem. -- Davide https://vimeo.com/bocio/videos _______________________________________________ subsurface mailing list [email protected] http://lists.subsurface-divelog.org/cgi-bin/mailman/listinfo/subsurface
