I've had it with my Uwatec Aladin Pro computer

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drbill

The Lorax for the Kelp Forest
Scuba Legend
Rest in Peace
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Location
Santa Catalina Island, CA
# of dives
2500 - 4999
Although it's an old geezer (like myself), I've always liked my Uwatec Aladin Pro dive computer. It was only the second one I owned (after my Orca Skinny Dipper) and I felt its algorithms were well suited for my diving.

Then, after five years of fairly heavy service, the computer battery failed despite a reading of about 39% remaining battery life... in the middle of a long deco dive (good thing I had analog backup... and my brain). Why should I be upset with that? The Uwatec manual says in more than one place that the battery will continue to deliver power even after it hits the 0% remaining battery life. Yeah, right... most of the people I've talked to say theirs failed in the 30-40% range. So that constitutes false advertising.

I sent the Uwatec in to the factory to get the battery replaced (not user replaceable). $70 later (and that was a bargain as I don't think my LDS charged a cent on his end), it is returned to me with a fresh battery.

However, not long after the factory replaced the battery, the computer started resetting my Nitrox mix without any help from me. Now despite being one, I don't dive "geezer gas" due to the maximum depths I film at. In fact, I didn't even know how to reset the oxygen percentage. The computer "very nicely" did it for me... usually only to 28% or 32% so not a big deal for many of my dives.

However, a month or so ago, it told me I was approaching death. It was beeping like heck (I couldn't hear it... I'm a diver, but my buddies sure could). I checked the display which was flashing frantically. It had reset my mix to 50% O-2, again without me touching a thing!

Today I go on my first dive since the fires started. My computer had been sitting in a padded bag on my kitchen counter for the last 6 days. After I submerged, I quickly noticed that the LCD display was not displaying most of the dive data. In fact, very little data other than my depth (barely readable) and my remaining non-deco time. I looked closely and there appeared to be a crack beneath the faceplate. The LCD was bleeding at both ends of the crack and obscuring the rest of the display.

The computer had not been banged or abused in any way. The only thing I can think of is that somehow the incredibly low humidity and high temperatures had caused this crack inside the computer itself. Not sure how that could happen since it was indoors in a padded case. Living right by the ocean we're used to reasonable (not high) humidity and moderate temperatures. The past week has been anything but.

So now I have a computer I can barely read and 10 days in a row of diving multiple dive days. Of course I will borrow another computer that I can read, but I will dive with this one as well since the data was still down-loadable to my desktop.

Wonder if anyone else has had such bad "luck" with these Uwatecs?
 
I have the same computer, but I have not had any of the problems you descibe. I used it faithfully for many years without incident.

I am now diving a closed-circuit rebreather exclusively, so I no longer use my Uwatec computer, but I may some day.

Thanks for the info about the computer. If I do use it again in the future, I will keep my eye out for those problems.
 
I’m not so sure with the Aladin Pro, never used it, but some computers come with an option that by default sets the O2 percent to 50% after a dive where the O2 was something other then 21%. Maybe when it came back the default option is ON for that ? You should be able to turn that setting off, as far as the other problems I agree with MattBoy and make sure you take it off your wrist first :)
 
It was at 21% when it came back from the factory (and for the vast majority of my dives with it afterwards). It has only reset itself 4-5 times, but the latest one was very irritating. No automatic resets mentioned in the manual. Good thing I knew I was diving air... and that I can survive a descent past 70 feet on that "mixed" gas.

I'm sure Uwatec will tell me it is obsolete. Well, from now on... so are they!
 
Computer sounds whacked to me ... it should never change by its self to anything other than the same exact default O2 percentage every time , if it has a default . as yours does not seem to have one .. It's whacked

I wonder what SP will say about it?

[My Oceanic VEO will default to 50% O2 if set to anything other than "AIR", even if set to 21% (or whatever) you must reset O2 before next dive if left as it comes from Oceanic]
 
Interesting read on McFadyen's site. Sure has me even more convinced to skip Uwatec on my next purchase.

Just in case anyone thinks I'm a ScupaPro/Uwatec basher, I dive exclusively with SP regs (own 6 of them) and BCD's (own four of them) and love both products.
 

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