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>The Nemesis is one of these 'remote' units that transmits data to a display >unit, including tank info. The user can select any Nitrox mix, the thing >tracks dive time, depth + time/depth of stops (Buhlmann), remaining gas >duration, O2 doses and all sorts of stuff and logs everything you could >think of (up to and including what you had for breakfast). Is this correct? > What form does the 'remote' unit take & how does it connect to the 1st >stage - I'd be reluctant to lose my good old HP gauge? Finally, how easy is >this thing to set & control (how many buttons/contacts). The nitrox mix selector goes from around 21% up to 50% O2. The system comes in two units, one mounts on your high-pressure port, the other on your wrist and is about the size of your Alladin Pro. It is not really intended or built for use during a decompression dive, like the Pro is. As a matter of fact, it digests the information a little much for me to use in that particular application. I find it best for those profies where you are diving more sport protocols than otherwise. It will use up an HP port, but I can also generally hook up an analog guage no matter what kind of diving I do. If I need to, that is. Mostly, though, the digital readout is probably at least as accurate as the analog, and at least as dependable, and if it breaks, well, you'll be terminating the dive anyway, and having an analog guage really doesn't make all that much difference, right? You'll either have enough air for the ascent or not, regardless. Just another hose to break. The control part is through the computer interface, no programming on the unit with buttons and that kind of stuff. Just an on for the tank unit, and single button for the wrist unit. Excellent for use if you have a portable computer. Actually, when I use it seriously, I also take m my portable in a Pelican case. >The Bridge seems a bit simpler, not connected to the tank and not logging >nearly as much, but providing the same (or similar) level of deco >information. I don't know about that. As for decompression information, the best I've seen is the Alladin Pro, with time at stop and total ascent time. My experience with the bridge I wore did not afford me a look at it's read-outs. The Nemesis gives you "time at depth" which is like the minimum of no-deco time and tank time (given air consumption) at current depth. When it thinks you need deco, it gives you a ceiling and total ascent, as I recall. Sort of like the Alladin Sport, if you recall that offering from Beauchat. Were I to choose a format for information during decompression diving, I would choose more raw data, so I can assimilate it myself and make decisions. One of the reasons I like the Alladin Pro. Like I said before, I still use the Pro. The Nemesis can record the dive just fine, but I need the information I get from my Pro, and I am used to it anyway. >Over here, both cost about the same (600 pounds) - how does that compare >with US prices, (and can I buy a metric version over there :->). I bought it from the shop where I teach, so that is probably not a good indicator. The best thing is to check with a couple of shops that will mail-order, and get their prices. >BTW, I'm probably going to get mix qualified some time in the next year - >any info in how upset these things get if i carry them as a depth >gauge/timer and bend the suckers. (My Aladin can get into a deep sulk if I >bend it). Well, when bent it reverts to "guage" mode where it stops giving decompression information on the wrist unit. Which, actually, in situations like that, is probably all you really want from it anyway. ------------------------------------------------------- scot@bt*.co* Scot Anderson pp000082@in*.co* Voice: 703/761/6536 CIS:74147.2357 Fax: 703/556/9290
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