Air integrated and guages

SID wrote:
> "Keith Manning" <Nospam@tesco.net> wrote in message news:<_5uid.4448$CX1.2391@newsfe4-gui.ntli.net>...
>
>>"Pete Melbourne" <psmvsl@yahoo.com> wrote in message
>>
>>
>>>Gas absorbtion modal should not care what the pressure is in the tank,
>>>only thing it needs to know is what is in that tank and you have to
>>>tell it that before the dive
>>>--
>>>Pete
>>>diving 'at' melbourne 'dot' me 'dot' uk
>>
>>Some of the AI computers make a correction if you are working hard, this is
>>gauged by your air consumption, but I believe that this is only the same as
>>normal common sense conservatism too.
>>
>>When I used an AI computer, I liked to have the gauge just to double check
>>at the start of the dive that they were both singing from the same
>>songsheet. I invariably used the gauge during the dive anyway as it is much
>>quicker to check at a glance.
>>
>>Keith
>
>
> This makes me wonder what happens to such computers if you use air to send a bag up!

Someone from my club did this, and said that sending a DSMB
significantly increased their claimed deco time, despite the fact he was
already ascending at this point.

If you've ended up with one buddy OOA and using the other's secondary,
and the donor's computer takes this to mean that he's breathing twice as
fast and so needs more deco time, surely this could lead to a rather
unpleasant experience if the gas starts running low, even if in actual
fact you have enough air...

SID wrote:
> "Keith Manning" <Nospam@tesco.net> wrote in message news:<_5uid.4448$CX1.2391@newsfe4-gui.ntli.net>...
>
>>"Pete Melbourne" <psmvsl@yahoo.com> wrote in message
>>
>>
>>>Gas absorbtion modal should not care what the pressure is in the tank,
>>>only thing it needs to know is what is in that tank and you have to
>>>tell it that before the dive
>>>--
>>>Pete
>>>diving 'at' melbourne 'dot' me 'dot' uk
>>
>>Some of the AI computers make a correction if you are working hard, this is
>>gauged by your air consumption, but I believe that this is only the same as
>>normal common sense conservatism too.
>>
>>When I used an AI computer, I liked to have the gauge just to double check
>>at the start of the dive that they were both singing from the same
>>songsheet. I invariably used the gauge during the dive anyway as it is much
>>quicker to check at a glance.
>>
>>Keith
>
>
> This makes me wonder what happens to such computers if you use air to send a bag up!

Someone from my club did this, and said that sending a DSMB
significantly increased their claimed deco time, despite the fact he was
already ascending at this point.

If you've ended up with one buddy OOA and using the other's secondary,
and the donor's computer takes this to mean that he's breathing twice as
fast and so needs more deco time, surely this could lead to a rather
unpleasant experience if the gas starts running low, even if in actual
fact you have enough air...

SID wrote:
> "Keith Manning" <Nospam@tesco.net> wrote in message news:<_5uid.4448$CX1.2391@newsfe4-gui.ntli.net>...
>
>>"Pete Melbourne" <psmvsl@yahoo.com> wrote in message
>>
>>
>>>Gas absorbtion modal should not care what the pressure is in the tank,
>>>only thing it needs to know is what is in that tank and you have to
>>>tell it that before the dive
>>>--
>>>Pete
>>>diving 'at' melbourne 'dot' me 'dot' uk
>>
>>Some of the AI computers make a correction if you are working hard, this is
>>gauged by your air consumption, but I believe that this is only the same as
>>normal common sense conservatism too.
>>
>>When I used an AI computer, I liked to have the gauge just to double check
>>at the start of the dive that they were both singing from the same
>>songsheet. I invariably used the gauge during the dive anyway as it is much
>>quicker to check at a glance.
>>
>>Keith
>
>
> This makes me wonder what happens to such computers if you use air to send a bag up!

Someone from my club did this, and said that sending a DSMB
significantly increased their claimed deco time, despite the fact he was
already ascending at this point.

If you've ended up with one buddy OOA and using the other's secondary,
and the donor's computer takes this to mean that he's breathing twice as
fast and so needs more deco time, surely this could lead to a rather
unpleasant experience if the gas starts running low, even if in actual
fact you have enough air...

SID wrote:
> "Keith Manning" <Nospam@tesco.net> wrote in message news:<_5uid.4448$CX1.2391@newsfe4-gui.ntli.net>...
>
>>"Pete Melbourne" <psmvsl@yahoo.com> wrote in message
>>
>>
>>>Gas absorbtion modal should not care what the pressure is in the tank,
>>>only thing it needs to know is what is in that tank and you have to
>>>tell it that before the dive
>>>--
>>>Pete
>>>diving 'at' melbourne 'dot' me 'dot' uk
>>
>>Some of the AI computers make a correction if you are working hard, this is
>>gauged by your air consumption, but I believe that this is only the same as
>>normal common sense conservatism too.
>>
>>When I used an AI computer, I liked to have the gauge just to double check
>>at the start of the dive that they were both singing from the same
>>songsheet. I invariably used the gauge during the dive anyway as it is much
>>quicker to check at a glance.
>>
>>Keith
>
>
> This makes me wonder what happens to such computers if you use air to send a bag up!

Someone from my club did this, and said that sending a DSMB
significantly increased their claimed deco time, despite the fact he was
already ascending at this point.

If you've ended up with one buddy OOA and using the other's secondary,
and the donor's computer takes this to mean that he's breathing twice as
fast and so needs more deco time, surely this could lead to a rather
unpleasant experience if the gas starts running low, even if in actual
fact you have enough air...

On Fri, 05 Nov 2004 15:42:57 +0000, Stuart Moore
<usenet_05_08_2004@stuartmoore.org.uk> wrote:

>> This makes me wonder what happens to such computers if you use air to send a bag up!
>
>Someone from my club did this, and said that sending a DSMB
>significantly increased their claimed deco time, despite the fact he was
>already ascending at this point.
>
>If you've ended up with one buddy OOA and using the other's secondary,
>and the donor's computer takes this to mean that he's breathing twice as
>fast and so needs more deco time, surely this could lead to a rather
>unpleasant experience if the gas starts running low, even if in actual
>fact you have enough air...

As I said it can not possibly know why you are using more gas and if
it is appropriate to add more deco
--
Pete
diving 'at' melbourne 'dot' me 'dot' uk

On Fri, 05 Nov 2004 15:42:57 +0000, Stuart Moore
<usenet_05_08_2004@stuartmoore.org.uk> wrote:

>> This makes me wonder what happens to such computers if you use air to send a bag up!
>
>Someone from my club did this, and said that sending a DSMB
>significantly increased their claimed deco time, despite the fact he was
>already ascending at this point.
>
>If you've ended up with one buddy OOA and using the other's secondary,
>and the donor's computer takes this to mean that he's breathing twice as
>fast and so needs more deco time, surely this could lead to a rather
>unpleasant experience if the gas starts running low, even if in actual
>fact you have enough air...

As I said it can not possibly know why you are using more gas and if
it is appropriate to add more deco
--
Pete
diving 'at' melbourne 'dot' me 'dot' uk

On Fri, 05 Nov 2004 15:42:57 +0000, Stuart Moore
<usenet_05_08_2004@stuartmoore.org.uk> wrote:

>> This makes me wonder what happens to such computers if you use air to send a bag up!
>
>Someone from my club did this, and said that sending a DSMB
>significantly increased their claimed deco time, despite the fact he was
>already ascending at this point.
>
>If you've ended up with one buddy OOA and using the other's secondary,
>and the donor's computer takes this to mean that he's breathing twice as
>fast and so needs more deco time, surely this could lead to a rather
>unpleasant experience if the gas starts running low, even if in actual
>fact you have enough air...

As I said it can not possibly know why you are using more gas and if
it is appropriate to add more deco
--
Pete
diving 'at' melbourne 'dot' me 'dot' uk

On Fri, 05 Nov 2004 15:42:57 +0000, Stuart Moore
<usenet_05_08_2004@stuartmoore.org.uk> wrote:

>> This makes me wonder what happens to such computers if you use air to send a bag up!
>
>Someone from my club did this, and said that sending a DSMB
>significantly increased their claimed deco time, despite the fact he was
>already ascending at this point.
>
>If you've ended up with one buddy OOA and using the other's secondary,
>and the donor's computer takes this to mean that he's breathing twice as
>fast and so needs more deco time, surely this could lead to a rather
>unpleasant experience if the gas starts running low, even if in actual
>fact you have enough air...

As I said it can not possibly know why you are using more gas and if
it is appropriate to add more deco
--
Pete
diving 'at' melbourne 'dot' me 'dot' uk

Lee Bell <leebell@ix.remove.netcom.com> wrote:

> The biggest problem with the concept of planning to surface in the event of
> a computer failure is that most people figure that means you're out of the
> water for a minimum 24 hours. That's a tough thing to have to do on an
> expensive diving holiday.

I agree so I always carry a 2nd computer and like you wear a
Hyperaqualand. This makes it much more probable that I can continue to
dive and that neither will fail .


--
>replace spamblock with my family name to e-mail me

Lee Bell <leebell@ix.remove.netcom.com> wrote:

> The biggest problem with the concept of planning to surface in the event of
> a computer failure is that most people figure that means you're out of the
> water for a minimum 24 hours. That's a tough thing to have to do on an
> expensive diving holiday.

I agree so I always carry a 2nd computer and like you wear a
Hyperaqualand. This makes it much more probable that I can continue to
dive and that neither will fail .


--
>replace spamblock with my family name to e-mail me