Home rebreather help

Sea-Jay · 23rd June 2008, 20:25

I'm in the process of making a home made rebreather. I had some question about O2 addition and monitoring.

what's the pro/cons with swagelok metering valve?
Has anyone used the pelagian meter valve for home made breathers?

The other question is how to monitor the system. I'm trying to use three sensors, can anyone point to a readout system that's off the shelf?

Thanks,
Much appreciated

montyg · 24th June 2008, 05:22

Hi Sea-Jay

Although my knowledge is far less than the gurus such as Dave Sutton, I shall try to give you some pointers....

My first thought is that you should abandon the idea of using a needle valve as your first attempt, and start with a fixed orifice. Its cheaper, simpler and there's fewer things that can go wrong.

AFAIK there's no compelling reason for you to use a needle valve and I sincerely hope you don't intend to go so very deep soon that you'll exceed the limits of the standard fixed IP/orifice setup!

On the subject of PPO2 monitoring I'd strongly suggest you read Dale Bletso's article titled "One, two, three, four, what's the magic number?" (How many sensors) and then you look at the options in terms of PPO2 monitors.

On the cheaper end there's Mark Munroes' at PPO2.com and on the more expensive/fancy end there's things like the rEvoDream and the Delta-P Universal rebreather monitor, etc.

HTH

rgds
monty

sailor · 24th June 2008, 11:55

Rearding home-build, PO2-Monitoring and O2-Injection have a look here:
Tauchen - Cave, Nitrox, Rebreather Ausbildung, Tec Ausrüstung, Reisen

23rd June 2008, 20:25	#1 (permalink)
Sea-Jay New Member Current Rebreather/s: Not Bought Yet Other Rebreather/s: Not Bought Yet Join Date: Apr 2008 Posts: 1	Home rebreather help I'm in the process of making a home made rebreather. I had some question about O2 addition and monitoring. what's the pro/cons with swagelok metering valve? Has anyone used the pelagian meter valve for home made breathers? The other question is how to monitor the system. I'm trying to use three sensors, can anyone point to a readout system that's off the shelf? Thanks, Much appreciated
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24th June 2008, 05:22	#2 (permalink)
montyg Monty Guest Current Rebreather/s: Home Build Other Rebreather/s: Home Build Join Date: Feb 2007 Location: Cape Town, South Africa Posts: 229	Re: Home rebreather help Hi Sea-Jay Although my knowledge is far less than the gurus such as Dave Sutton, I shall try to give you some pointers.... My first thought is that you should abandon the idea of using a needle valve as your first attempt, and start with a fixed orifice. Its cheaper, simpler and there's fewer things that can go wrong. AFAIK there's no compelling reason for you to use a needle valve and I sincerely hope you don't intend to go so very deep soon that you'll exceed the limits of the standard fixed IP/orifice setup! On the subject of PPO2 monitoring I'd strongly suggest you read Dale Bletso's article titled "One, two, three, four, what's the magic number?" (How many sensors) and then you look at the options in terms of PPO2 monitors. On the cheaper end there's Mark Munroes' at PPO2.com and on the more expensive/fancy end there's things like the rEvoDream and the Delta-P Universal rebreather monitor, etc. HTH rgds monty
(Offline)

24th June 2008, 11:55	#3 (permalink)
sailor New Member Current Rebreather/s: Inspiration Vision Other CCR Dolphin Other Rebreather/s: Other CCR Dolphin Join Date: Jul 2006 Location: UAE Posts: 64	Re: Home rebreather help Rearding home-build, PO2-Monitoring and O2-Injection have a look here: Tauchen - Cave, Nitrox, Rebreather Ausbildung, Tec Ausrüstung, Reisen
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