Deco dives and "normal" computers

[matt_unique]

Thats not really a fair comparison, all that says is some decompression models take into account deep stops and others dont - its nothing really to do with the computer itself. There is huge variation out there between all the commonly used decompression models and software that more than account for this.

The thread topic is about the ability to safely use recreational dive computers for deco dives. This is a simple yes or no question - the answer is no.

Whats wrong with gauge mode ? Again this highlights the differences between 2 different models not the computer itself.

I never said there was anything wrong with gauge mode - which means for a properly planned deco dive you are using the computer as a "gauge" only. That is just what I use my recreational computer for during deco dives.

Thats a dive planning issue not a computer issue..

You can't use recreational dive computers to plan dives....back to the topic....

Like to see some statistics to back this up. For *properly* planned decompression dives at least.

I don't have any statistics and I'm guessing it would be difficult to find any. Take a guess as to why? Deco divers do not conduct dives with recreational computers. The advice of my tech instructors and the profiles generated by two well known deco software programs was more than enough for me to accept this concept.

What I said was the deco obligation provided by my recreational computer indicated my first stop at 20'. This was specifically a dive on the U853 to a max depth of 124' for 15 minutes on air. My recreational computer indicated a very short stop at 20' then a stop at 10' for about 10 minutes as I recall. I compared the profile from my rec computer to those generated by Deco Planner or V-Planner. They were not even close. I use V-Planner which requires stops at 50',40',30', and 20' is my last stop. Total deco time of just under 21 minutes. Deco Planner will give you one deeper stop as I recall.

--Matt

 

[MechDiver]

Well every dive is a deco dive - which makes every planned dive a planned deco dive... but I understand your point.

Good party line, but no, they are not. And no, they aren't.

At least not in the context of this thread, or the 1237 other threads we've had about why you don't use recreational computers for planned deco.

 

[lairdb]

Deco divers do not conduct dives with recreational computers.

That contradicts what you just said only four sentences earlier:

That is just what I use my recreational computer for during deco dives.

If what you mean is "Safe and prudent deco divers do not plan dives with recreational computers" then we've got some ground for agreement.

 

[matt_unique]

That contradicts what you just said only four sentences earlier:

You misunderstood my text. My recreational computer is used as a watch/depth gauge when doing deco dives. My deco profiles are on a slate generated by V-Planner.

If what you mean is "Safe and prudent deco divers do not plan dives with recreational computers" then we've got some ground for agreement.

Ditto....