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anthony,youre a smart man.figure this out.solenoid failes on a closed
circuit,pumps a bunch of pure o2 into the mix,what happens?at least in the
semi closed youre breathing a known gas mix before hand.now,back to closed
circuit,computer failes,whoops,we have no o2 readout.mechanical do we care?
- jt
On Wed, 4 Sep 1996, Anthony Montgomery wrote:
> On Wed, 4 Sep 1996, John Todd wrote:
>
> > rich,no one who takes one of those 4 day iantd/tdi/whatever agency
> > courses on "rebreather diving" will be trained right to deal with manually
> > controlling the functions of the rebreather that are normally controlled by
> > the computer.you of all people should realize that.on top of that,if the
> > computer cant be trusted then how can you expect to trust the electronic
> > output generated by the computer?at least with the mechanical rebreathers
> > (err, semi-closed) theres no fancy gadgetry or tomfoolery to mess with,and
> > as a result its safer. - jt
> >
> John,
>
> Do you really think semi-closed rebreathers are safer? It seems
> to me that diving on a unit which depends on expected workload and
> theoretical O2 consumption rate isn't safe. But actually I won't go as
> far to say that semi-closed systems are unsafe. I would consider these
> aspects of semi-closed systems a disadvantage just as I would consider
> the likelyhood of electronic failure a disadvantage for fully-closed
> systems.
>
> ANTHONY MONTGOMERY
> Marine Option Program Waikiki Aquarium
> 1000 Pope Road MSB #203 2777 Kalakaua Ave
> Honolulu, Hawaii 96822 Honolulu, Hawaii 96815
> Fax: (808) 956-2417 Fax: (808) 923-1771
> Phone: (808) 956-6000 Phone: (808) 923-9741
>
>
>
>
>
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