Rebreather World - View Single Post - Maybe eCCR's really aren't the wave of the future for recreational divers?

**Dave Sutton** · 8th June 2007, 19:28

Quote: (Originally Posted by Mark Chase)

All this time I ran the unit manually and I can tell you it was hard work and the PP02 track will NOT look pretty.

Hey Mark, Sounds like a good day. Time for a well-deserved beer. You guys ought to get into the habit of serving it cold though...

What 02 flow are you using? It sounds like you could jack it up a "little" for what you are doing if you are needing to manage the rig often enough for it to be a bother. And what tolerances are you trying to hold? Within 0.2 is close enough for anything deco-wise and is far closer than you need to hold for physiological reasons not associated with deco. This is one of the "new mindsets" when moving from eCCR to mCCR's: Letting the PP02 flux up and down thru *your* desired limits. I use 0.2 high/low from "setpoint" and that's plenty close enough.

You are DEAD ON with your analysis of the HUD, and it's "Primacy" among displays. Well said, and have some green along with your beer.

Best,

Dave

8th June 2007, 19:28	#49 (permalink)
Dave Sutton Diveshop of Horrors Current Rebreather/s: Sport Kiss MK 15.X rEvo Other CCR Azimuth Home Build Other Rebreather/s: Evolution Megalodon rEvo Other CCR Azimuth Home Build Join Date: Jun 2006 Location: Narragansett, Rhode Island and Hackettstown, New Jersey Posts: 2,978	Re: Maybe eCCR's really aren't the wave of the future? Quote: (Originally Posted by Mark Chase) All this time I ran the unit manually and I can tell you it was hard work and the PP02 track will NOT look pretty. Hey Mark, Sounds like a good day. Time for a well-deserved beer. You guys ought to get into the habit of serving it cold though... What 02 flow are you using? It sounds like you could jack it up a "little" for what you are doing if you are needing to manage the rig often enough for it to be a bother. And what tolerances are you trying to hold? Within 0.2 is close enough for anything deco-wise and is far closer than you need to hold for physiological reasons not associated with deco. This is one of the "new mindsets" when moving from eCCR to mCCR's: Letting the PP02 flux up and down thru your desired limits. I use 0.2 high/low from "setpoint" and that's plenty close enough. You are DEAD ON with your analysis of the HUD, and it's "Primacy" among displays. Well said, and have some green along with your beer. Best, Dave __________________ "Silent Diving with No Bubbles and No Politics".... www.nobubblediving.com And the colors of the sea blind your eyes with trembling mermaids, For the sparkling waves are calling you to kiss their white-laced lips. And you see a girls brown body dancing through the turquoise, And her footprints make you follow where the sky loves the sea. And when your fingers find her, she drowns you in her body, Carving deep blue ripples in the tissues of your mind...... Last edited by Dave Sutton : 8th June 2007 at 19:31.
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