Vision electronics & gauge mode....

the saint

Hi all,

on my Vision I have both nitrox and trimix softwares enabled.

I was wondering if there is the chance to use the electronics in gauge mode (bottom timer) too.

This is just because sometimes I have the necessity to follow different ascent method from the deco tables generated by the Vision software and obviously the buzzer still sound because of the "missed deco" alarm.
Maybe someone know if there is any method to choose dive by dive if the electronics have to work as a dive computer or as a bottom timer?

Andrea.

nigelh

How about just setting it for 90/98?
Any dive plan that tries to get you out much faster than that is trying to kill you so you shouldn't get buzzed often.

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nigelh

the saint

I'll try tomorrow.....

Tino de Rijk

Good tip & answer, Nigel!
The deco-part isn't there for nothing. Making it possible to disable it will lead inevitably to guys doing that by accident & get into trouble.

Even setting it to GF 90/98 a user should realise anyway that actually following it in that mode will give you a quite significant chance on DCI, unless you are a "Young God" (21, no smoking/drinking/sex (....), always in the sportschool, being able to swim 10 km high-speed, while singing songs all the way, followed by running a marathon - and hard proof of not having a PFO...).

100/100 (which you are not able to set, and for a good reason!) would revert you to a totally bare-bones Buhlmann algoritm, which is not recommended at all..... 90/98 gives you only a very small margin of safety, withe.g. virtually no deep stops at all.

ciao,

Tino.

decoweenie

Uhmmm...

Do you have any official documentation regarding the last mentioned parameter relating to DCI incident ?

I might have to give up deco diving...

__________________
"...after a while you get bored offering advice to a bull that like to keep butting the fence with its head rather than walking through the open gate..."

- Rebreather World PM

SINUS

You mean you have excessive of that?.


Cheers

Wei Lan

__________________
"Silence Is Always Beautiful"

decoweenie

You mean you don't ?

__________________
"...after a while you get bored offering advice to a bull that like to keep butting the fence with its head rather than walking through the open gate..."

- Rebreather World PM

SINUS

................................

__________________
"Silence Is Always Beautiful"

Tino de Rijk

There is some scientific evidence that sex during CCR diving may lead to loop floods and hypoxia....
However, it is very, very secret research, so supplying it would mean I would have to kill you afterwards. Since I don't want to do that, you'll have to take my good old Dutch windmill-based, wooden clogs-supported word for it.....

Ciao,

Tino.

nigelh

Diving gives you a significant chance of DCI.

I prefer to run computers on zero conservatism and then I add what ever safety factors I choose. Just like bus time-tables are there to tell us how late the buses are so dive tables and computers should tell us the earliest possible moment to leave a stop and let us decide, looking at our contents gauges and the state of our bladder how close we want to cut it.

I admit I was annoyed when I discovered I couldn't set 100/100 on the Vision but 90/98 will do and it's better than the VR3 that doesn't like my idea of deep stops and (sometimes) whinges because I don't do its version. I do not buy computers to be in charge but to offer advice.

One of the nice things on a CCR is diving on a calm summer evening and coming to 6m - back in the sunlight after being down in the dark and you can just extend the stop indefinitely and postpone the awful moment when you have to start hauling yourself out and clambering back into a boat. Conversely if we have broken something and the bailout SPGs are crashing I want to know shortest time to surface and Bühlmann will do just fine.

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nigelh