Tracking Device for CCR P02?

saturation

Hello everyone:

Two questions.

1:

Is there a device used on any model Rebreather, either built in or purchased as an accessory, that logs the loop P02 like a dive logging computer does, such as the Sensuspro does for depth and time?

http://reefnet.ca/products/sensus/

This way, in case of problems or accidents, the unit can playback the status of P02?

2:

Is there a real time sensor available for loop PC02?


Thanks!

Saturation

PeteS

The Inspiration/Evolution vision does this.

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Pete S.

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Genesis

The controller that I am building (for my homebuild) does this, along with logging any faults/alarms that it is aware of, and the diver-selected setpoint.

It is explicitly intended as a "black box" log.

mikedive

Hi Saturation,

Try contact Kevin Gurr at www.vr3.co.uk because the VR3 can track if connect to the loop. I use mine off loop that is way I can't tell you how looks like the graphics with the unit connect into the loop after you download the dive profile but Kevin will give you all the informations.
Cheers,

Mike - www.protecdiving.com

Mdemon

Yup, it the PO2 of a 4th cell attached to a VR£ is logged even if you aren't using it in External PO2 mode.

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www.southwestmafia.com

It's as easy as abc;

a) "Carry adequate bailout"

b) "If in doubt, bail out"

c) "Always know your PO2"

If you find that hard, stick to crochet.

"Once the agenda-monkeys and perfect-worlders have moved on, perhaps we can do some diving?"

Gregv

As the others have already mentioned, the VR3 with external cell does it.

Prodive screen grab: http://gvdh.kol.co.nz/Photos/dive1_M&M&G.jpg

You can also export the dive data in ascii format and play with it yourself

PPO2 control was a bit all over the place on that particular dive...

Greg

RonMicjan

The HS explorer dive computer will also record your PO2 if connected. Currently there is no Rebreather with the ability to track actual CO2 in the loop. The vision electronics tracks scrubber stack temperature which shows the diver where the reaction is currently at, but its not basing it measurments on amount of CO2. There are currently several folks designing and building CO2 monitors for RB's, its only a matter of time. Do a search for "Tom Rose"

I have been thinking about a measurement device, sort of a cockpit data recorder for the CCR diver and not only should it record PO2 and CO2, but cylinder pressures, depth, diver vitals, like heartrate, respiration rate, maybe oxygen perfusion through a pulse oximeter. The Polar series of monitors might be adaptable for this process, they are wireless now, but maybe need a different RF to work underwater. The data recorder would have room for maybe 24 hours of data and when any two things stop moving, its freezes the recording so the data will be not written over should the diver not be found soon enough. If we dont learn the mistakes that can be made, we cant teach ways around them.

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Ron
"Life is pain princess, anyone who tells you different, is selling something", The Dread Pirate Wesley.


www.tmishop.com Diving bits etc.

Crazyduck

The Polar heart monitor works just fine underwater. We used them for Underwater Hockey, and they worked like a charm depth considerations might be another matter though. Web- http://www.polar-usa.us/polar-axn300.html
100 meter rating. Plus, you could set an alarm for certain heart rate threshold.

Andrew

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saturation

Many thanks folks for reply. I rarely see these graphs so I thought to ask.

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Safe Diving and Best Wishes,

I.G. Saturation, MD

{ Comments are informational only and not meant to be medical advice applicable to a particular case. Consult your physician when considering information posted here }

dan@scuba-training.net

I am attempting to use the "CSV" files exported from a VR3 computer in my deco software.

It seems that the second column is the depth, but cannot determine what sort units it is measured in.

It cannot be feet, nor meters...
cubits, or furlongs, perhaps?