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SAC rate on SUBSURFACE

Discussion in 'Dive Software' started by Mo.Diver, Feb 7, 2020.

  1. Mo.Diver

    Mo.Diver Angel Fish

    # of Dives: 50 - 99
    Location: Saudi Arabia
    22
    1
    3
    Hello,

    I'm using Sherwood Vision and Subsurface. I noticed there's a field for SAC which is currently empty. Would there be a way for auto-calculation of it?

    I thought my computer should be able to calculate it and download it to the log, wouldn't that be the case?


    Thanks!
     
  2. tursiops

    tursiops Marine Scientist and Master Instructor ScubaBoard Supporter

    # of Dives: 2,500 - 4,999
    Location: U.S. East Coast
    9,253
    6,959
    113
    Does Subsurface know your starting and ending pressures?
     
    Scuba Cobra likes this.
  3. _Ralph

    _Ralph Manta Ray

    560
    233
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    If you enter in the tank information on the equipment tab (tank size, starting and ending pressures) it will calculate your average SAC rate for the dive and display it down with the dive listings


    _R


     
  4. Mo.Diver

    Mo.Diver Angel Fish

    # of Dives: 50 - 99
    Location: Saudi Arabia
    22
    1
    3
    Thank you so much for your prompt reply!!!

    It has my pressure readings.. I can't remember the cylinders I used in my last 13 dives but they were all rental so I'll just enter AL80? I primarily dive in Saudi with a trip to Egypt, would you know what they typically use?
     
  5. tursiops

    tursiops Marine Scientist and Master Instructor ScubaBoard Supporter

    # of Dives: 2,500 - 4,999
    Location: U.S. East Coast
    9,253
    6,959
    113
    Be advised that what Subsurface call SAC is called by most reputable sources RMV...residual minute volume. SAC is normally expressed in pressure/minute (psi or bar), whereas RMV is expressed in volume/minute (cuft or lt). You do not need to know your tank size to calculate SAC.
     
  6. atdotde

    atdotde Solo Diver

    # of Dives: 200 - 499
    Location: Munich, Germany
    171
    149
    43
    Maybe Subsurface should have a preference to choose the name for this quantity. Besides the possibility to choose tank vs cylinder.
     

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