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I want to murder my computer and feed it to the fishies!

Discussion in 'Mares... Just add Water!' started by melanie., Aug 20, 2011.

  1. Jax

    Jax Deplorable American ScubaBoard Supporter

    # of Dives: 200 - 499
    Location: AZ TX
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    Melanie, the questions came up about your training because if you HAD training, you would know that ascending too slowly causes you to on-gas more than you off-gas. It is not the computer's "fault"; it is doing what it is designed to do.

    It "sounds like" the way you are doing things will get you bent or you will run out of gas. The fellows are just expressing a warranted and genuine concern.
     
    Heath Sapp and inventor like this.
  2. DuboisP

    DuboisP Manta Ray

    # of Dives: 200 - 499
    Location: Amiens, France
    621
    69
    28
    i agree.
    with the Mares M1 RGBM, you must be around 10ft to have a good deco, else the minutes are very long
    according the user guide, the ascent rate is based on 10m/min (33ft/min)

    Melanie, are the altitude setting was correct ? the M1 RGBM doesn't have settings to hard the algorithm, but you can use the altitude setting to mimic it.
     
  3. DuboisP

    DuboisP Manta Ray

    # of Dives: 200 - 499
    Location: Amiens, France
    621
    69
    28
    was for the M1, not for the M1 RGBM
     
  4. DuboisP

    DuboisP Manta Ray

    # of Dives: 200 - 499
    Location: Amiens, France
    621
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    completed : :D
    MARES recommends that divers never exceed the
    maximum permitted depth for their qualification.
    Diving below 130 feet (40 meters) or outside the nodecompression
    limits significantly increases the risk
    of decompression sickness.
    NEVER dive deeper than 130 feet (40 m) or
    do planned decompression dives with the
    COMPUTER unless you are a trained and
    certified technical diver (IANTD, TDI, ANDI,
    PSA, etc.) familiar with the skills and risks of
    deep air diving, and licensed at least to the
    level of Deep Air diving for depths beyond
    130 feet (40 m). Even with this level of
    certification and experience, this type of
    technical dive entails a much higher risk of
    DCS, regardless of the dive table or
    computer used. You must be aware of and
    willing to accept these risks before
    attempting such a dive.

    Always ascend several minutes before going into DEC
    mode, and allow yourself even more time in the case of
    cold water conditions, repetitive dives deeper than 60
    feet (18 m), or for any dive involving unusually high
    exertion. Failure to do this will increase your risk of
    decompression sickness.

    i have some dives at > 130ft with my Mares M1 RGBM (my 1rst computer, always used sometimes), 20 min bottom, 45 min out
     
  5. melanie.

    melanie. Barracuda

    # of Dives: 200 - 499
    Location: Ontario, Canada
    278
    159
    43
    Jax - I understand the concern, really I do. And I do appreciate it. But the thing is I am tired of people just saying well you don't know what you are doing so you are going to kill yourself. How about some constructive criticism please? Telling me just not to do it is not going to change anything. Help me learn instead

    Like I came on here asking for help with my computer - then I get told because I don't know my computer I shouldn't be using it? Come on already. I have done all the reading I possibly can think of on the thing and am beyond theory learning. I am currently trying to figure out how it works in real life situation.

    And the ascent rate, ok yes I know. But what I am not understanding is that my buddy right next to me - who is going up the same speed of me - is not getting any extra deco on his computer? When he starts going up it stops adding deco, heck it even takes some off. So is my comp just being it's uber-conservative self or am I doing something wrong? Should I be attempting to speed up my ascent or should I just take into consideration before hand that it will continue to add on and keep my slow and steady pace. Because it is stuff like this that I can't know before hand, that I can only learn about by doing.

    =C= - thanks for the link, but my computer was not affected by the recall. (It is the RGBM model)

    inventor - oh don't worry I can't wait for the day I get to upgrade :) If only the world didn't revolve around money
     
  6. ianr33

    ianr33 Solo Diver

    # of Dives: 200 - 499
    Location: Wah Wah Land
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    I have a couple of rules of thumb when it come to dive computers:
    Any computer that tells you to ascend before going into deco is not designed for deco diving.
    Any computer that has a 3 minute safety stop countdown after clearing deco stops is not designed for deco diving.
     
  7. melanie.

    melanie. Barracuda

    # of Dives: 200 - 499
    Location: Ontario, Canada
    278
    159
    43
    That's what I don't get, I was at EXACTLY 10 feet, no reason for the minutes to take so long.
    The altitude is set to P0 (0-2300ft). The least conservative setting possible
     
  8. ianr33

    ianr33 Solo Diver

    # of Dives: 200 - 499
    Location: Wah Wah Land
    5,166
    970
    113
    You don't know what you are doing. You may or may not kill yourself.

    The internet is not the place to learn deco diving.

    Get trained. Please.

    (All meant constructively)
     
    Jax likes this.
  9. DuboisP

    DuboisP Manta Ray

    # of Dives: 200 - 499
    Location: Amiens, France
    621
    69
    28
    these 3 minutes are optional. RTFM
    there are other ways to get trained than to go to school.

    Cousteau didn't have a C-card.
    We are here people with a 1rst level c-card, but are expert on CCR, without C-card.
     
  10. ianr33

    ianr33 Solo Diver

    # of Dives: 200 - 499
    Location: Wah Wah Land
    5,166
    970
    113
    Not optional, dumb!

    So I've just done an hours deco,the last 30 minutes on 100% O2 and the computer wants an "optional" safety stop??!!

    My Predator does not have a safety stop countdown and I'm guessing the X1 doesn't either. My point was that any computer with a safety stop countdown is really a recreational computer no matter what the sales literature may say.
     

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