-hh
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If I had it to do over, would I post this thread again - yes, because of responses like the one from -hh!!!
My pleasure.
Thanks, Don. I doubt this will be my lifetime, dream computer but it was cheap and simple. It's fine for now. Simple is good for me. Although, I wish I had gotten a model that would download to my computer. But, for $200 what can I expect? ...
Well, you could expect to ask your hubby for a Sensus Ultra from ReefNet. Sure, at $200 (+$50) for a "just a data logger", it does seem a bit expensive, but they last forever. I have the prior "Sensus Pro" (Second Generation) design and it is ten years old and counting...and still on its original battery(!)
And I now have ten years worth of dive profiles all stored in the same data format, which is where a stand-alone device like this is nice, because it won't change if .. sorry, WHEN! .. you eventually move to a different dive computer (especially different brand). Plus, Les Wilk did a nice job in writing the software: not only can you change settings on the Sensus (time intervals), but you're able to export out every datapoint for you to use however you want (Excel spreadsheet, etc).
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Finally, one more thing, since this is on the Advanced Forum:
The question of performing Deco for Recreational diving is often a topic that generates some heat. The simple reality is that deco used to be part of rec dive training, but got "simplified" out over the years. For the doubters, here's a 30 year old PADI dive table:
And similarly, there's also been a lot of research .. and heat .. regarding the question of risk per dive for various No-Deco profiles and the like. There's no doubt that current no-stop limits as have been implemented in tables and dive computer software has undergone a lot of scrutiny - - and massaging - - based on various statistical criteria .. 1 bent per 1,000 dives, per 5,000 dives, or 1 lawsuit per 10,000 units sold (that's the liability lawyers' flavor of statistics).
To this end, I'm providing one more document that is to be used with extreme care and due diligence. This is the next-to-impossible-to-find US Navy "Risk" dive table that was published in some research 20+ years ago. FYI, the original format was text-based EPS ('Encapsulated PostScript' printer drawing commands), a now-obsolete format which I've converted to be a PDF.
Please do NOT get yourself in trouble with this table - - it is poorly labeled and potentially very misleading. The unlabeled lines are as follows: the middle curve is the PADI table of the day (ie, the above), which as one can plainly see has No-Stop times greater than what we typically accept today. The dotted line below represents the no-stop for an estimated 1% DCS risk ... and the top dashed line represents an estimated 5% DCS risk.
The reason I provide this info, despite these reservations, is because the underlying insight is still somewhat helpful for those "everything gone bad" dives to try to assess risk. For example, if one has just done a 100fsw max multilevel profile for 45 minutes and the dive computer's showing some light deco, but something happens which prevents that indicated deco from being completed, this research suggests that there's probably around a 95% chance that you're not going to get seriously bent. Hopefully, having such insight can minimize the risk of a bad situation from getting compounded into something worse due to not knowing what the magnitude of risk was.
Safe diving,
-hh