set nitrox mode with stinger suunto ?

Mario wrote:
> I see, now it starts to be more clear.
>
> But I am maybe confussed, doesnt the PO2 depends on the depth ? if it
> depends just on the depth why doesnt the computer set it automatically
> according to the depth ? or maybe PO2 depends also on other factors?
> this is what I would like to understand better.

You do need to take a nitrox course.

The PO2 is the fraction of O2 in the mix times the depth in ATA.

At the surface (1 ata) breathing normal air (FO2 0.21) the PPO2 is 1.0 x
0.21 = 0.21 If you are breathing a 40% mix at the surface it is 1.0 x
0.40 = 0.40

At 33 fsw (2 ata) on normal air it is 2.0 x 0.21 = 0.42

At 33 fsw on 40% nitrox it is 2.0 x 0.40 = 0.80

Hello,

When setting the suunto stinger in Nitrox mode, is it needed to enter
just the percentage of O2 or also the value of PO2 ( partial pressure
O2) ? if so, why is it needed to enter also the partial pressure of O2
? isnt it related to the depth? if so couldnt it be calculated
according to the depth ?

Do also other dive computers require entering the partial pressure of
O2 ? also the aladin does ?

What about the dive alarm max depth, do you also set the max depth
alarm to the max depth of the entered % of Oxygen ?

Please feel free to give me your comments and recommendations in the
use of the stinger for Nitrox diving.

Thanks,

Mario

In article <472db9ab.0408022252.4bdbdf97@posting.google.com >, Mario
<marmagi@hotmail.com> wrote:

€ Please feel free to give me your comments and recommendations in the
€ use of the stinger for Nitrox diving.

1. Learn to dive with a bottom timer.
2. Sell stinger on eBay.
3. Buy bottom timer.
4. Go diving.

You don't read manuals, do you?

--
"We're going to rush the hijackers."
-Jeremy Glick, aboard United Airlines flight 93, September 11, 2001

"Michael Wolf" <michael.wolf@advalvasstopspam.be> wrote in message
news:410f4408$0$31488$ba620e4c@news.skynet.be...
>
>
> chilly wrote:
>
> > "Michael Wolf" <michael.wolf@advalvasstopspam.be> wrote in message
> > news:410f3f97$0$31488$ba620e4c@news.skynet.be...
> >
> >>
> > (snip)>
> >
> >>BTW there's some good computers out on the market which do the job just
> >>as fine as the Stinger, but cost a bit less.
> >
> >
> > Sure there are, but they don't have that sexy cachet.
>
> There are ways to compensate for that...

My point exactly. Some guys that need to compensate buy hot cars, others
may buy a fancy dive computer that doubles as a watch.

chilly wrote:
> "Michael Wolf" <michael.wolf@advalvasstopspam.be> wrote in message
> news:410f4408$0$31488$ba620e4c@news.skynet.be...
>
>>
>>chilly wrote:
>>
>>
>>>"Michael Wolf" <michael.wolf@advalvasstopspam.be> wrote in message
>>>news:410f3f97$0$31488$ba620e4c@news.skynet.be.. .
>>>
>>>
>>>(snip)>
>>>
>>>>BTW there's some good computers out on the market which do the job just
>>>>as fine as the Stinger, but cost a bit less.
>>>
>>>
>>>Sure there are, but they don't have that sexy cachet.
>>
>>There are ways to compensate for that...
>
>
> My point exactly. Some guys that need to compensate buy hot cars, others
> may buy a fancy dive computer that doubles as a watch.

....and some simply don't need to compensate... ahum...

--
Michael Wolf

-----

Cthulhu For President.
Why settle for the lesser evil?

remove stopspam to reply

"Michael Wolf" <michael.wolf@advalvasstopspam.be> wrote in message
news:410f605a$0$31482$ba620e4c@news.skynet.be...
> chilly wrote:
> > My point exactly. Some guys that need to compensate buy hot cars,
others
> > may buy a fancy dive computer that doubles as a watch.
>
> ...and some simply don't need to compensate... ahum...

buffing your fingernails on your chest, are ya?

interesting none of your answers clearly answer my question, I hope
there is some one that can seriously explain me the use of setting the
PO2 from 1.2 upto 1.6

thanks



> chilly wrote:
> > "Michael Wolf" <michael.wolf@advalvasstopspam.be> wrote in message
> > news:410f4408$0$31488$ba620e4c@news.skynet.be...
> >
> >>
> >>chilly wrote:
> >>
> >>
> >>>"Michael Wolf" <michael.wolf@advalvasstopspam.be> wrote in message
> >>>news:410f3f97$0$31488$ba620e4c@news.skynet.be.. .
> >>>
> >>>
> >>>(snip)>
> >>>
> >>>>BTW there's some good computers out on the market which do the job just
> >>>>as fine as the Stinger, but cost a bit less.
> >>>
> >>>
> >>>Sure there are, but they don't have that sexy cachet.
> >>
> >>There are ways to compensate for that...
> >
> >
> > My point exactly. Some guys that need to compensate buy hot cars, others
> > may buy a fancy dive computer that doubles as a watch.
>
> ...and some simply don't need to compensate... ahum...
>
> --
> Michael Wolf
>
> -----
>
> Cthulhu For President.
> Why settle for the lesser evil?
>
> remove stopspam to reply

chilly wrote:

> "Michael Wolf" <michael.wolf@advalvasstopspam.be> wrote in message
> news:410f605a$0$31482$ba620e4c@news.skynet.be...
>
>>chilly wrote:
>>
>>>My point exactly. Some guys that need to compensate buy hot cars,
>
> others
>
>>>may buy a fancy dive computer that doubles as a watch.
>>
>>...and some simply don't need to compensate... ahum...
>
>
> buffing your fingernails on your chest, are ya?

who? me???

--
Michael Wolf

-----

Cthulhu For President.
Why settle for the lesser evil?

remove stopspam to reply

On 3 Aug 2004 07:33:26 -0700, marmagi@hotmail.com (Mario) wrote:

>interesting none of your answers clearly answer my question, I hope
>there is some one that can seriously explain me the use of setting the
>PO2 from 1.2 upto 1.6

Michael Wolf's first post answered it
--
Pete

news 'at' melbourne 'dot' me 'dot' uk

"Mario" <marmagi@hotmail.com> wrote in message
news:472db9ab.0408030633.6a7423ec@posting.google.c om...
> interesting none of your answers clearly answer my question, I hope
> there is some one that can seriously explain me the use of setting the
> PO2 from 1.2 upto 1.6
>
> thanks

Mario,
If you don't already know the answer then you haven't done a Nitrox
course, or you missed the single most important point.
To give you this piece of information, without the rest of the course to
make you aware of the caveats and why you would use different values, is
dangerous.
If you didn't understand Michael Wolf's explanation then I'm doubly worried
and less inclined to explain in detail.
If you want to know then do a nitrox course, otherwise forget it and leave
the computer in 'air' mode.

Sorry,
Ron MacRae