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Improvement idea: better PO2 display

Discussion in 'Shearwater Cloud' started by Nicool, Apr 9, 2021.

  1. Nicool

    Nicool Registered

    # of Dives: 1,000 - 2,499
    Location: Sydney, Australia
    Hi there,
    The following enhancement suggestion applies to Shearwater computers that read partial oxygen pressure from rebreather's oxygen sensors.

    Today on Shearwater Cloud, I can only display the average PO2 (across my 3 rebreather sensors) and this is in ATA, e.g. it could read:
    1.28 ATA.
    For each individual sensors, I can display the voltage in mV, e.g. it could read:
    O2 mv 1: 50.0 mV
    O2 mv 2: 52.0 mV
    O2 mv 3: 48.0 mV

    What would be more useful to me is to display the PO2 in x.yz format (2 decimals), for each sensor (and I'd prefer the PO2 displayed in Bars rather than ATA, yes small difference I know, but international system is bars...).

    Why would this be useful?
    -It would help me to see in the logs, if a sensor has been drifting away from the others during a dive.
    -When I test whether the constant mass flow is well calibrated for my metabolic consumption, it's a case of staying still few mins, and ensuring the PO2 is stable => getting the 2 digits would help.
  2. rsingler

    rsingler Scuba Instructor, Tinkerer in Brass Staff Member ScubaBoard Sponsor

    # of Dives: 500 - 999
    Location: Napa, California
    Why does individual cell voltage not address both these issues? The graphic function clearly shows deviation over time. Not arguing with you, just wondering why the units matter?
    Addison Snyder likes this.

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