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Date: Fri, 23 Mar 2001 13:48:34 +0100
From: mat.voss@t-*.de* (Matthias Voss)
Organization: Harry Haller Memorial Fund
To: George Irvine <kirvine@sa*.ne*>
CC: techdiver@aquanaut.com
Subject: Re: Which computer is the best?
This guy asked about a computer , not a depth gauge.
You are right on the gauge mode in the suunto however.


George Irvine schrieb:
> 
> This is the biggest compilation of bullshit I have read on here yet.

I just try to keep up.

> To correct your crap here, the Suunto is one of the only useful computers as
> it can be run on gauge mode and still records the profile and reads deep
> enough for most dives. The others have a ridiculous padded algorithm that is
> useless for ANY dive.

This is bullshit in this generalizition. Some are ridiculous , others
aren't. Old aladins calculate well beyond 100m, only do not display the
leading digit.
All Aladins , like many others,have to be regarded with caution on
multiple rec dives.
I do not know of any computer which's algorythms have been tested to
these multiple , no limit diving, nor extended range technical, or deep
diving.
But I have tested some, whith different algorithms , giving the same,
nearly identical readings, even on multiple dives.
For instance the Comex proven new Beuchat range. Unfortenately, these
stop working at 65 m , so I cannot recommend it here.


 
> Jetstream regs are bullshit as are any reg that uses a high IP,
Jetstream works perfectly in IP settings from 7 bar to 14. Standard IP
with 5000 first stage is 9.5 bar, with old cyklon 300 it is 11.5 bar.
The IP is settable with a simple allan key and gauge. You know that. 



 any reg that
> needs proprietary hoses,

So swapping regs in Water is that important, or the money to change to a
different length ?
 

any reg that needs OPV's,

Any reg I know of has an OPV. Some use a separate one ( Draeger,
POseidon 5000,Jetstream. Others rely on the second stage seat. It is
physically the same technique ( valveseat/spring assmbly)
Would you possibly silt your OPV so that they quit working ?
If so , do not use one. ( you cannot silt the Draeger OPV, since it
vents into the reg) 

 or any reg that can not
> be disassembled and cleared under water.

Add , without a screwdriver, since you do not have the special ss
clamps.
 
> Apeks regs meet all the requirements of a good reg, plus have the best seat
> materials that do not fail , among other things.

Sure it does.
And the TX 100/TX 40 combo these days in Europe is a bargain, 'bout
600,-DM !

But a seat in any of the 5 poseidons I have is still waiting to fail.
-Matthias
 
> > > Anders Johnsson schrieb:
> > >
> > > Hello.
> > > Planning to buy a new computer...
> > > I´m thinking of buying Uwatec Aladin Ultra pro.
> > > Which computer is the best, that one or Suunto Vyper? And
> >
> >
> > Anders, your question is , which is better for you,right ?
> > This depends solely of your own experience, how you feel doing the deko
> > procedures you are used to . If you feel right, use both computers and
> > check which one conforms better with your habits. Give the other some
> > serious tries, as well, and watch yourself, if you even feel better
> > still.
> >
> > A computer should not be judged solely upon his method of calculating or
> > the output it gives, but also regarding compliance with _your well_
> > proven habits.
> >
> > I myself like computers which gave safe for me but close to the edge
> > values, so i can determine which degree of extra safety I'd like to put
> > in which my own decisions.
> > In contrast to computers which give an abundant time of deco, which you
> > feel are safe but not really necesary . If you make a decision, now , to
> > leave their advice, you both may screw up the computer into bluescreen
> > mode, and be not really sure as to which degree you endanger yourself,
> > 'cause you do not move to the direction of _more_ safety.
> > Just m y2cc.
> >
> > > What Apeks-reg is the best? TX40, TX50 or TX100.
> >
> > TX 50 is TX 40 plus adjustable breathing resistance/ venturi action. you
> > do not need that.
> >
> > TX 100 is TX 50 minus swivel mount at first stage. You may not nedd
> > that. If you do, remember no swivel O-rings adds to reliability.
> >
> > So, optimum in terms of reliability is TX 40 snd Stage + TX 100 first.
> >
> > Compared to Poseidon, the Apeks first stages are a bit less complicated
> > to serve, but on par in power.
> >
> > The Jetstream in its best condition has a big deal more capacicity , but
> > may feel not as comfortable cause the initial breaking pressure
> > usuasally is  bigger. ( in normal life, at the service class at
> > Poseidons I measured breaking pressures so low I could not believe it )
> > And, if something goes wrong at the little pilot valve, it may purge
> > your bottles contents more efficiently than any other reg. Not a case of
> > reg to be towed through silty passages.
> >
> > Matthias
> >
> > > I´m now using a Poseidon Jetstream, and when I get rid of that one,
> > > i´m only going for "the best"...
> > > ... available for reasonable money...
--
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