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Looking to Buy a Rebreather

Discussion in 'Rebreather Diving' started by SentinelAce, Jul 5, 2021.

  1. lermontov

    lermontov Contributor

    # of Dives: 500 - 999
    Location: christchurch
    yes you are correct -if you failed to do a decent dil flush as per the checklist order and bring the po2 back down and jumped back on you might see .7 and think you've turned on the 02 -in fact you could probably do a pre breath and jump in the water and it might still read .65 but it would be RED (warning ) so a hot drop might pick it up to .7 again and you might think its all ok -once again demonstrating the checklist is in a certain order for a reason

    I did some tests at home - starting at .21 with 02 turned off you've got about 17 breaths and approx 1min 27sec before your light headed (.16) if you miss that your computer is flashing RED for that long and your solenoid is working away and you dont notice it before your temp stick has warmed up then i dont know what else can be done to warn you
    stuartv likes this.
  2. cathal

    cathal Contributor

    # of Dives: 500 - 999
    Location: Ireland
    An audio or vibratory alarm? Considering the severity of the consequences i.e. unconsciousness and probably death.
  3. AJ

    AJ Contributor

    # of Dives: 500 - 999
    Location: Netherlands
    If you miss those signs would you be alerted by an audio of vibrating alarm? If having a flashing red light right in front of you're eyes is not enough what is?
    kensuf likes this.
  4. cathal

    cathal Contributor

    # of Dives: 500 - 999
    Location: Ireland
    Well looking at a safety critical sector such as the aviation sector, the evidence would tend to show that these alarms types would be enough, as these are the specific alarm types used in aircraft for life critical warnings such as anti-stall. Just maybe something we could learn from.
  5. FIGJAM007

    FIGJAM007 Registered

    # of Dives: 200 - 499
    Location: Australia
    AP has a audible alarm “buzzer” which is really loud underwater

    liberty rebreathers have vibration alarms which are apparently really hard to miss

    only ones I could think of. But you should never need them if you are monitoring your rebreather like you where instructed in training.
  6. AJ

    AJ Contributor

    # of Dives: 500 - 999
    Location: Netherlands
    Audible alarm: what if your alarm of your buddies alarm goes off because of false alarm? If that happens two or three times I guarantee you will turn it off. I know nobody who dives with alarm on after a few dives.

    Vibrating alarm: wetsuit maybe usable, but diving rebreather means probably longer dive times and therefore drysuit, which means a thick(er) layer between the computer and your skin. It's highly doubtable you will feel it enough to be usefull.

    So I agree: they may help, but you should really not need them and certainly should not rely on them. To me it's gadgetry I can do fine without.
  7. jale

    jale Contributor

    Even with thick under in a DS, you really feel the vibrations (talking about Freedom computer and i suppose it is the same for the liberty)
  8. flymolo

    flymolo Contributor

    The vibrating alarms on the divesoft are definitely noticeable through a drysuit with thick undergarments. You can choose which alerts you want a vibrating alarm for, which is nice.
  9. broncobowsher

    broncobowsher Contributor

    If you put enough safety features on a rebreather it will be perfectly safe, as in you will never be able to get it in the water to use it.
    rjack321, evandroairton and Tribal like this.
  10. Tassi Devil Diver

    Tassi Devil Diver Rebreather Pilot

    # of Dives: 1,000 - 2,499
    Location: Tasmania, Australia
    The red flashing of my HUD gets my attention pretty dam quick.
    Jack Hammer likes this.

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