NudeDiver
Contributor
There you go. Suunto's lawyers use a more conservative algorithmOr it may be that Dive Rite and Suunto have different lawyers writing their disclaimers, Suunto being the more conservative company.
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There you go. Suunto's lawyers use a more conservative algorithmOr it may be that Dive Rite and Suunto have different lawyers writing their disclaimers, Suunto being the more conservative company.
Not necessarily. There are several computers on the market that are completely appropriate for doing staged decompression diving. The Cobra isn't one of them. It's designed for recreational diving. The Internet isn't the appropriate place to be learning why that is ... if you want to do that type of diving, some training would be a better use of your finances than a computer.I think just about everyone that does intentional deco dives is saying (not implying) that recreational dive computers are not the way to do the job. It is far better to have a written deco plan and then make the dive using 2 computers in gauge mode.
There are far more important features to look for in a tech dive computer than games. Perhaps the most important would be a decompression algorithm that's designed for staged decompression diving ... rather than one that's been modified for recreational use. There are other features provided by different model computers ... some are more useful for staged decompression diving than others, depending on how you're using the computer to plan and execute dives (not just the one you're doing, but how you're going to look at planning future dives).There are a very few computers that are intended to be used for deco diving. They have neat things like electronic games, eBook readers and other amusements to occupy your time while you hang for long periods of time. The VR3 has these features. I don't think the LiquiVision does but you can spend a lot of time admiring the display.
The problem with "ascend immediately" is that the computer doesn't provide any useful ceiling information. Most will tell you not to go shallower than 10 feet until you've cleared your deco obligation. The problem with that is most people using these computers do not understand decompression, and ... following the instructions ... will ascend directly to 10 feet. Depending on the depth profile and amount of obligation you've incurred, this could be a recipe for a Type II hit that'll put you in a chamber, and ... if you happen to get really unlucky ... in a wheelchair for the rest of your life.But when the user manual clearly says that the computer is not intended for deco diving (see post #40) and that the diver should ascend immediately when the dive computer shows a requirement for a deco stop it is a pretty good indication that the computer is not intended for deco diving.
I write manuals for a living, and understand something fundamental about them ... which is that most people won't actually read them. At best, manuals are most commonly used to find a specific piece of information. The vast majority of the people reading this thread, in fact, probably have never opened the manual that came with their dive computer. Most likely got their computer and started pressing buttons to "figure out" how it works. Once they've got the basics down they take it diving. Many (one I've even dived with) do not understand what the computer means when it starts flashing that little "10".But, again, it's up to the end user. If they read the manual and understand the capabilities and then insist on doing something that the computer wasn't designed for, well, that's their choice.
Richard
... and if you get bent riding that computer and doing what you "think" it's telling you, I'd be willing to bet you'd be quick to hire a lawyer of your own and try blaming it on the company that made the device, as well as the vendor that sold it to you.Or it may be that Dive Rite and Suunto have different lawyers writing their disclaimers, Suunto being the more conservative company.
Adam
Believe what you want ... dive recreational gear to 300 feet for all I care.
Good luck ...
... Bob (Grateful Diver)
Oh, good grief. I focused on one particular statement of yours:It seems that NudeDiver has focused on my warning that if you plan to dive into deco on a repetative basis with the Cobra 2, you will most likely take a chamber ride.
If you do dive the computer and go into deco several times during the course of a dive weekend or trip, you will almost certainly enjoy a ride in a chamber.
Now there's a wild assumption.Apparently he does not like this, possibly because it touches too close to home?
I agree.I don't know.
Yeah - nothing like being able to lay down the law like a king, and expecting the sycophants to just heed it without any thought or question whatsoever - let alone have them collect information, analyze it and discuss it with others. I can see how that would put a lot of people off.
According to one poster, all diving is deco diving But within the intent of your comment, no, I haven't.I'm honestly not looking for an argument ... nor trying to "lay down the law". But from the context of your comments, and those of a couple other people who have participated in this conversation, I would seriously doubt you've ever actually done any decompression diving. And if you have, I'd be seriously worried about your safety.
I understand the topic. And I never said that the Cobra is designed for deco diving. However, I did take exception with the one poster's comment, which said that if you are using a Cobra, and it goes into deco mode several times over the course of a weekend or trip, that you are "almost certainly going to a chamber", because that's just not true - and no supporting evidence, let alone proof, as provided to support this statement. Do you really think that's true? Really?If you don't understand the topic, you shouldn't be handing out advice. And for sure you shouldn't be trying to pick arguments with the people who do.
There is no "true" in decompression diving ... no line on which you can stay on the "safe" side, nor cross onto the "unsafe" side. There are simply too many unknowns and too many variables. So you can only really talk about it in terms of probabilities. And some of the biggest risk factors are going to depend on your particular physiology ... because how your body responds to decompression is going to vary from person to person, day to day, dive to dive. That's why there is no simple, straightforward answer to your question. And it's also why I said if you want to do these dives, get some training ... because no computer will keep you "safe" if you use it in a manner it wasn't designed to be used. It's got nothing to do with lawyers, and everything to do with physiology.According to one poster, all diving is deco diving But within the intent of your comment, no, I haven't.
I understand the topic. And I never said that the Cobra is designed for deco diving. However, I did take exception with the one poster's comment, which said that if you are using a Cobra, and it goes into deco mode several times over the course of a weekend or trip, that you are "almost certainly going to a chamber", because that's just not true - and no supporting evidence, let alone proof, as provided to support this statement. Do you really think that's true? Really?
I've never had a problem with people asking questions ... or even questioning things I say. As an instructor, my favorite question begins with the word "Why".FWIW, NWGD, I do respect your opinion (as well as the opinion of some of the other people on here). If I didn't, I'd just add you to an IgnoreList However, that doesn't mean I will not ask probative questions and ask you to defend your opinion - if nothing else, so I can understand where it comes from. It's also the nature of learning
Cheers!
nd
According to one poster, all diving is deco diving But within the intent of your comment, no, I haven't.
I understand the topic. And I never said that the Cobra is designed for deco diving. However, I did take exception with the one poster's comment, which said that if you are using a Cobra, and it goes into deco mode several times over the course of a weekend or trip, that you are "almost certainly going to a chamber", because that's just not true - and no supporting evidence, let alone proof, as provided to support this statement. Do you really think that's true? Really?