Maybe eCCR's really aren't the wave of the future for recreational divers?

**Dave Sutton** · 7th June 2007, 23:08

Quote: (Originally Posted by Gill Envy)

Any thoughts on how to get around that? ...besides buying an rEVO

Just buy a rEvodream and add it to your rig? Best HUD system I've seen for this use.

Dave

bletso · 7th June 2007, 23:36

Quote: (Originally Posted by Mark Chase)

MCCR you have to be constantly aware of whats going on. This really is a pain and it becomes apparent when task loaded with a camera or bagging up spidge, sorting line out etc etc.

PP02's are all over the place so an integrated decompression computer is a nice comfort blanket on a big dive. It theoretically tells you what you need rather than you having to guess your average PP02.

I am sure it gets easier and more instinctive but after about 20 hours on it so far I conclude its a pain.

In order for it to be safe it must have HUD.

Mark Chase

Uhm, strange, I dive my own MCCR and I don't find it a pain at all. Though I check PO2 regularly, I seldom have to add O2 unless I am huffing it, but then I know I am huffing it and therefore I know I will have to add.

As far as having to always know what your PO2 is with MCCR, I would think you better well know with an ECCR as well. Electronics and water just don't mix well. I have never had a problem of PO2's all over the board. It has been a non issue with me.

HUD, well I have never used a hud, and would never do so. I have two primary readouts, separate power supplies, etc. Of course we have discussed HUDs before. I do not believe in seconday readouts, and most HUDs are just that. They are also power pigs. I just prefer to see the numbers on my displays. PO2 gauge

I also don't believe you need 3,4 or more sensors diving MCCR How many sensors

BTW, I can't imagine ever trusting an ECCR unit and wouldn't dive one even if given one and the training to go with it. It is really a philosphical problem. An analogy on the phylosphy of MCCR diving and ECCR diving may be the differences between men and women, (other than the obvious differences), neither can really understand the other.

Dale

**Gill Envy** · 7th June 2007, 23:47

thanks for that Stuart. My desire for complete redundancy is based on first hand experience while on the other hand my desire for true isolation without sharing cells is based pretty much entirely on intelectual extrapolation. So, comments like yours really make me question my thinking on the real importance of not sharing cells. I wish there was a difinitive answer on whether two systems monitoring one cell could really ever lead to static pollution crossing over from one monitor to another. I'm really wrestling, order form in hand, with weather I should go with the HUD on the shearwater and just hook up the stock handset in parallel with the shearwater on each of the three cells, as you describe.

If there was room for a fourth cell in the Copis head, i'd plum in a fourth cell in a heart beat and run the shearwater and HUD on the primary three cells and just plug the stock handset into the fourth. My goal here is to keep all cells in the head (the counter lung/fourth cell option on the meg would require full on rewiring of the head in the event that the primary went bad and I wanted to plug the secondary into all three cells- not attractive to me). Again, my primary concern is that I will be able to have two systems capable of being plugged in to all three cells so i'm never left high and dry on an expensive and time consuming trip. Maybe I should just get over the theoretical aversion to sharing cells.

If anyone has ideas on how to solve this canundrum before I order the shearwater, it would be very helpful. I seem to remember it was Dave sutten that was the strongest believer in the imporance of true isolation...does anyone else adhere to this? Dave, have your thoughts changed on this?

Quote: (Originally Posted by schford)

Gill,

I can see why you might want to split things - but I love the way Bruces HUD works - right in front of your eyes you can see when a cell starts lagging and you get a real early warning of potential failures as it starts being slow to respond compared to the other cells. With the HUD as well do you really need another monitoring device?

1 - If the Handset fails you gonna bail anyway but will have the HUD there.
2 - If the HUD fails youll have the handset and should bail.
3 - If a cell fails you will see it on both of em...and should Bail...

Plus you will only need one other external computer to have redundant deco information....

As to the other bits I have to respectfully disagree with Dave here and agree with Mark - there is more work in setting up your mCCR than your eCCR and keeping it tuned (just checked the flow rate IP etc etc) Flying it I dont notice the difference as I always flew mine manually any way but if you didnt then the task loading is going to be way up for the first x hours.

The COPIS is a great choice for you as you get the best WOB from any mCCR out there plus you got the flexibility of just plonking on a different head if you want to go eCCR for something really gnarly or because you jsut want to.

I think the flexibility of having a COPIS head and a Shearwater eCCR head is gonna be great for me....It will be interesting to see how I feel in 6 months and which I use the most...

Stuart

**Gill Envy** · 7th June 2007, 23:49

does it work on 1 or 3 cells? Does what you are advocating require sharing cells, I seem to remember you being very against there not being true isolation even down to the cells?

g

Quote: (Originally Posted by Dave Sutton)

Just buy a rEvodream and add it to your rig? Best HUD system I've seen for this use.

Dave

**Dave Sutton** · 7th June 2007, 23:49

Quote: (Originally Posted by bletso)

HUD, well I have never used a hud, and would never do so. I have two primary readouts, separate power supplies, etc. Of course we have discussed HUDs before. I do not believe in seconday readouts, and most HUDs are just that. They are also power pigs. I just prefer to see the numbers on my displays.

Hi Dale,

Respectfully suggest that you check the power consumption of something like the rEvodream... batteries last just about forever. Being a former "non-adapter" to a HUD (similar to you), I also respectfully suggest that you dive something like a rEvodream once or twice. You'll never go back to not having one. It's just another way of seeing the same data, with the same resolution.

Agreed that mCCR's are less work. Them's that say they are more work are still in initial adaptation mode. New tools are always harder to use than the ones that they replace, even if the long-term result is lower work. This takes time.

Dave

**Dave Sutton** · 7th June 2007, 23:55

Quote: (Originally Posted by Gill Envy)

does it work on 1 or 3 cells? Does what you are advocating require sharing cells, I seem to remember you being very against there not being true isolation even down to the cells?

g

Howdy,

rEvodream can be set to read either 1 or 2 cells. Each cell is displayed in a rotating sequence on both handset and HUD. You select one or two cells when setting it up. A great system for a mCCR is to use one rEvodream to monitor two cells, and use a VR-3 or similar for a redundant PP02 reading as well as deco. Works a champ. Loss of one system does not affect the other.

You can also use a second rEvodream to look at additional cells. Using (2) rEvodreams, you can run two cells to one and one to the other and a VR-3 from a 4th cell, or share the VR-3 cell with one channel of the rEvodream and have each Revodream run 2 cells.

Select the matrix that you like, and go with it. A single rEvodream with a HUD on 2 cells and a VR-3 on a 3rd cell is pretty darned sensible. And you can tuck the rEvodream handset away... once you adapt to the HUD you'll very rarely even look at the handset. The HUD displays the same data, from the same system, with the same resolution. The handset is really redundant. A green HUD and a glimpse at the VR-3 is all you need.

Dave

bletso · 8th June 2007, 00:02

Quote: (Originally Posted by Dave Sutton)

Hi Dale,

Respectfully suggest that you check the power consumption of something like the rEvodream... batteries last just about forever. Being a former "non-adapter" to a HUD (similar to you), I also respectfully suggest that you dive something like a rEvodream once or twice. You'll never go back to not having one. It's just another way of seeing the same data, with the same resolution.

Dave

Hey Dave, I just downloaded their info and watched the video. Nice piece of equipment, but.....

One display, one controller. Not what I am comfortable with. And all those blinking codes!! I am just a simple minded bloke.

Price isn't bad though.

Dale

**Gill Envy** · 8th June 2007, 00:35

Thanks for the input Dale. It looks like you are more on the purist end of the whole isolation debate. Thanks for the link to the article, it enjoyed reading it. could you elaborate on why you don't like HUD's?

g

Quote: (Originally Posted by bletso)

Uhm, strange, I dive my own MCCR and I don't find it a pain at all. Though I check PO2 regularly, I seldom have to add O2 unless I am huffing it, but then I know I am huffing it and therefore I know I will have to add.

As far as having to always know what your PO2 is with MCCR, I would think you better well know with an ECCR as well. Electronics and water just don't mix well. I have never had a problem of PO2's all over the board. It has been a non issue with me.

HUD, well I have never used a hud, and would never do so. I have two primary readouts, separate power supplies, etc. Of course we have discussed HUDs before. I do not believe in seconday readouts, and most HUDs are just that. They are also power pigs. I just prefer to see the numbers on my displays. PO2 gauge

I also don't believe you need 3,4 or more sensors diving MCCR How many sensors

BTW, I can't imagine ever trusting an ECCR unit and wouldn't dive one even if given one and the training to go with it. It is really a philosphical problem. An analogy on the phylosphy of MCCR diving and ECCR diving may be the differences between men and women, (other than the obvious differences), neither can really understand the other.

Dale

**Dave Sutton** · 8th June 2007, 00:36

Quote: (Originally Posted by bletso)

Hey Dave, I just downloaded their info and watched the video. Nice piece of equipment, but.....

One display, one controller. Not what I am comfortable with. And all those blinking codes!! I am just a simple minded bloke.

Price isn't bad though.

Dale

Run it with a VR-3 as a tertiary system and you have all ya need..... it's simply excellent in actual use. I am an EXTREME sceptic on these topics... and with that said I am *completely* comfortable with the rEvodream, more so than any other package I have used.

The codes are FAR more simple than the literature would indicate. GREEN means you are "OK". GREEN ONLY means you are dead-on. GREEN *and* ORANGE means that PP02 is "OK" but that it's time to push the add button for a second, and GREEN *and* RED means that you overshot the PP02 "a little".

Yes, you can learn more by looking at the flash rate of the amber or red, but as long as it's green too, who cares? Just remember that "a little amber is a little low" and a "lot-o-amber is a lot-low". Even so, as long as there is still green ALSO you are safe, GREEN = YOU ARE OK (and likely to stay that way).

My routine:

When it goes to green+amber, I add for 3 seconds. It will either go to green-only or maybe green+red for a minute. I hang out and when it goes to green+amber I add another shot of 02. I actually deliberately run the 02 to green+red, watch it drop thru green-only, and at green+amber I add. The cycle takes me about 5-10 minutes.

Amber only means "really low" and red only means "really high".

That's pretty simple no?

Dave

**Gill Envy** · 8th June 2007, 01:05

thanks Dave, so is there a stand alone HUD version of the rEVO, as with the shearwater?, which is basically a po2 monitor without a screen, but totally independent (unfortunately it can only run on all 3 cells).

And, are you still strongly averse to sharing cells or shall I say, are you still an advocate of pure isolation down to at least one cell?

g

Quote: (Originally Posted by Dave Sutton)

Howdy,

rEvodream can be set to read either 1 or 2 cells. Each cell is displayed in a rotating sequence on both handset and HUD. You select one or two cells when setting it up. A great system for a mCCR is to use one rEvodream to monitor two cells, and use a VR-3 or similar for a redundant PP02 reading as well as deco. Works a champ. Loss of one system does not affect the other.

You can also use a second rEvodream to look at additional cells. Using (2) rEvodreams, you can run two cells to one and one to the other and a VR-3 from a 4th cell, or share the VR-3 cell with one channel of the rEvodream and have each Revodream run 2 cells.

Select the matrix that you like, and go with it. A single rEvodream with a HUD on 2 cells and a VR-3 on a 3rd cell is pretty darned sensible. And you can tuck the rEvodream handset away... once you adapt to the HUD you'll very rarely even look at the handset. The HUD displays the same data, from the same system, with the same resolution. The handset is really redundant. A green HUD and a glimpse at the VR-3 is all you need.

Dave

7th June 2007, 23:08	#11 (permalink)
Dave Sutton Diveshop of Horrors Current Rebreather/s: Sport Kiss MK 15.X rEvo Other CCR Azimuth Home Build Other Rebreather/s: Classic Kiss rEvo Other CCR Azimuth Home Build Join Date: Jun 2006 Location: Narragansett, Rhode Island and Hackettstown, New Jersey Posts: 2,672	Re: Maybe eCCR's really aren't the wave of the future? Quote: (Originally Posted by Gill Envy) Any thoughts on how to get around that? ...besides buying an rEVO Just buy a rEvodream and add it to your rig? Best HUD system I've seen for this use. Dave __________________ "Changes in Lattitudes, Changes in Attitudes, Nothing remains quite the same".... www.nobubblediving.com
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7th June 2007, 23:36	#12 (permalink)
bletso An independent diver. Current Rebreather/s: Dolphin Home Build Other Rebreather/s: Dolphin Home Build Join Date: May 2006 Location: Louisville, KY, USA Posts: 256	Re: Maybe eCCR's really aren't the wave of the future? Quote: (Originally Posted by Mark Chase) MCCR you have to be constantly aware of whats going on. This really is a pain and it becomes apparent when task loaded with a camera or bagging up spidge, sorting line out etc etc. PP02's are all over the place so an integrated decompression computer is a nice comfort blanket on a big dive. It theoretically tells you what you need rather than you having to guess your average PP02. I am sure it gets easier and more instinctive but after about 20 hours on it so far I conclude its a pain. In order for it to be safe it must have HUD. Mark Chase Uhm, strange, I dive my own MCCR and I don't find it a pain at all. Though I check PO2 regularly, I seldom have to add O2 unless I am huffing it, but then I know I am huffing it and therefore I know I will have to add. As far as having to always know what your PO2 is with MCCR, I would think you better well know with an ECCR as well. Electronics and water just don't mix well. I have never had a problem of PO2's all over the board. It has been a non issue with me. HUD, well I have never used a hud, and would never do so. I have two primary readouts, separate power supplies, etc. Of course we have discussed HUDs before. I do not believe in seconday readouts, and most HUDs are just that. They are also power pigs. I just prefer to see the numbers on my displays. PO2 gauge I also don't believe you need 3,4 or more sensors diving MCCR How many sensors BTW, I can't imagine ever trusting an ECCR unit and wouldn't dive one even if given one and the training to go with it. It is really a philosphical problem. An analogy on the phylosphy of MCCR diving and ECCR diving may be the differences between men and women, (other than the obvious differences), neither can really understand the other. Dale Last edited by bletso : 7th June 2007 at 23:39.
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7th June 2007, 23:47	#13 (permalink)
Gill Envy Shearwater Copis Divers Current Rebreather/s: Other CCR Other Rebreather/s: Evolution Other CCR Join Date: Nov 2005 Location: seattle Posts: 1,314	Re: Maybe eCCR's really aren't the wave of the future? thanks for that Stuart. My desire for complete redundancy is based on first hand experience while on the other hand my desire for true isolation without sharing cells is based pretty much entirely on intelectual extrapolation. So, comments like yours really make me question my thinking on the real importance of not sharing cells. I wish there was a difinitive answer on whether two systems monitoring one cell could really ever lead to static pollution crossing over from one monitor to another. I'm really wrestling, order form in hand, with weather I should go with the HUD on the shearwater and just hook up the stock handset in parallel with the shearwater on each of the three cells, as you describe. If there was room for a fourth cell in the Copis head, i'd plum in a fourth cell in a heart beat and run the shearwater and HUD on the primary three cells and just plug the stock handset into the fourth. My goal here is to keep all cells in the head (the counter lung/fourth cell option on the meg would require full on rewiring of the head in the event that the primary went bad and I wanted to plug the secondary into all three cells- not attractive to me). Again, my primary concern is that I will be able to have two systems capable of being plugged in to all three cells so i'm never left high and dry on an expensive and time consuming trip. Maybe I should just get over the theoretical aversion to sharing cells. If anyone has ideas on how to solve this canundrum before I order the shearwater, it would be very helpful. I seem to remember it was Dave sutten that was the strongest believer in the imporance of true isolation...does anyone else adhere to this? Dave, have your thoughts changed on this? Quote: (Originally Posted by schford) Gill, I can see why you might want to split things - but I love the way Bruces HUD works - right in front of your eyes you can see when a cell starts lagging and you get a real early warning of potential failures as it starts being slow to respond compared to the other cells. With the HUD as well do you really need another monitoring device? 1 - If the Handset fails you gonna bail anyway but will have the HUD there. 2 - If the HUD fails youll have the handset and should bail. 3 - If a cell fails you will see it on both of em...and should Bail... Plus you will only need one other external computer to have redundant deco information.... As to the other bits I have to respectfully disagree with Dave here and agree with Mark - there is more work in setting up your mCCR than your eCCR and keeping it tuned (just checked the flow rate IP etc etc) Flying it I dont notice the difference as I always flew mine manually any way but if you didnt then the task loading is going to be way up for the first x hours. The COPIS is a great choice for you as you get the best WOB from any mCCR out there plus you got the flexibility of just plonking on a different head if you want to go eCCR for something really gnarly or because you jsut want to. I think the flexibility of having a COPIS head and a Shearwater eCCR head is gonna be great for me....It will be interesting to see how I feel in 6 months and which I use the most... Stuart __________________ Gill Envy ...Because I wasn't born with gills! ><(°>><(°>><(°>><(°>><(°>><(°>><(°>><(°>
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7th June 2007, 23:49	#14 (permalink)
Gill Envy Shearwater Copis Divers Current Rebreather/s: Other CCR Other Rebreather/s: Evolution Other CCR Join Date: Nov 2005 Location: seattle Posts: 1,314	Re: Maybe eCCR's really aren't the wave of the future? does it work on 1 or 3 cells? Does what you are advocating require sharing cells, I seem to remember you being very against there not being true isolation even down to the cells? g Quote: (Originally Posted by Dave Sutton) Just buy a rEvodream and add it to your rig? Best HUD system I've seen for this use. Dave __________________ Gill Envy ...Because I wasn't born with gills! ><(°>><(°>><(°>><(°>><(°>><(°>><(°>><(°>
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7th June 2007, 23:49	#15 (permalink)
Dave Sutton Diveshop of Horrors Current Rebreather/s: Sport Kiss MK 15.X rEvo Other CCR Azimuth Home Build Other Rebreather/s: Classic Kiss rEvo Other CCR Azimuth Home Build Join Date: Jun 2006 Location: Narragansett, Rhode Island and Hackettstown, New Jersey Posts: 2,672	Re: Maybe eCCR's really aren't the wave of the future? Quote: (Originally Posted by bletso) HUD, well I have never used a hud, and would never do so. I have two primary readouts, separate power supplies, etc. Of course we have discussed HUDs before. I do not believe in seconday readouts, and most HUDs are just that. They are also power pigs. I just prefer to see the numbers on my displays. Hi Dale, Respectfully suggest that you check the power consumption of something like the rEvodream... batteries last just about forever. Being a former "non-adapter" to a HUD (similar to you), I also respectfully suggest that you dive something like a rEvodream once or twice. You'll never go back to not having one. It's just another way of seeing the same data, with the same resolution. Agreed that mCCR's are less work. Them's that say they are more work are still in initial adaptation mode. New tools are always harder to use than the ones that they replace, even if the long-term result is lower work. This takes time. Dave __________________ "Changes in Lattitudes, Changes in Attitudes, Nothing remains quite the same".... www.nobubblediving.com Last edited by Dave Sutton : 8th June 2007 at 00:45.
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7th June 2007, 23:55	#16 (permalink)
Dave Sutton Diveshop of Horrors Current Rebreather/s: Sport Kiss MK 15.X rEvo Other CCR Azimuth Home Build Other Rebreather/s: Classic Kiss rEvo Other CCR Azimuth Home Build Join Date: Jun 2006 Location: Narragansett, Rhode Island and Hackettstown, New Jersey Posts: 2,672	Re: Maybe eCCR's really aren't the wave of the future? Quote: (Originally Posted by Gill Envy) does it work on 1 or 3 cells? Does what you are advocating require sharing cells, I seem to remember you being very against there not being true isolation even down to the cells? g Howdy, rEvodream can be set to read either 1 or 2 cells. Each cell is displayed in a rotating sequence on both handset and HUD. You select one or two cells when setting it up. A great system for a mCCR is to use one rEvodream to monitor two cells, and use a VR-3 or similar for a redundant PP02 reading as well as deco. Works a champ. Loss of one system does not affect the other. You can also use a second rEvodream to look at additional cells. Using (2) rEvodreams, you can run two cells to one and one to the other and a VR-3 from a 4th cell, or share the VR-3 cell with one channel of the rEvodream and have each Revodream run 2 cells. Select the matrix that you like, and go with it. A single rEvodream with a HUD on 2 cells and a VR-3 on a 3rd cell is pretty darned sensible. And you can tuck the rEvodream handset away... once you adapt to the HUD you'll very rarely even look at the handset. The HUD displays the same data, from the same system, with the same resolution. The handset is really redundant. A green HUD and a glimpse at the VR-3 is all you need. Dave __________________ "Changes in Lattitudes, Changes in Attitudes, Nothing remains quite the same".... www.nobubblediving.com Last edited by Dave Sutton : 8th June 2007 at 00:06.
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8th June 2007, 00:02	#17 (permalink)
bletso An independent diver. Current Rebreather/s: Dolphin Home Build Other Rebreather/s: Dolphin Home Build Join Date: May 2006 Location: Louisville, KY, USA Posts: 256	Re: Maybe eCCR's really aren't the wave of the future? Quote: (Originally Posted by Dave Sutton) Hi Dale, Respectfully suggest that you check the power consumption of something like the rEvodream... batteries last just about forever. Being a former "non-adapter" to a HUD (similar to you), I also respectfully suggest that you dive something like a rEvodream once or twice. You'll never go back to not having one. It's just another way of seeing the same data, with the same resolution. Dave Hey Dave, I just downloaded their info and watched the video. Nice piece of equipment, but..... One display, one controller. Not what I am comfortable with. And all those blinking codes!! I am just a simple minded bloke. Price isn't bad though. Dale
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8th June 2007, 00:35	#18 (permalink)
Gill Envy Shearwater Copis Divers Current Rebreather/s: Other CCR Other Rebreather/s: Evolution Other CCR Join Date: Nov 2005 Location: seattle Posts: 1,314	Re: Maybe eCCR's really aren't the wave of the future? Thanks for the input Dale. It looks like you are more on the purist end of the whole isolation debate. Thanks for the link to the article, it enjoyed reading it. could you elaborate on why you don't like HUD's? g Quote: (Originally Posted by bletso) Uhm, strange, I dive my own MCCR and I don't find it a pain at all. Though I check PO2 regularly, I seldom have to add O2 unless I am huffing it, but then I know I am huffing it and therefore I know I will have to add. As far as having to always know what your PO2 is with MCCR, I would think you better well know with an ECCR as well. Electronics and water just don't mix well. I have never had a problem of PO2's all over the board. It has been a non issue with me. HUD, well I have never used a hud, and would never do so. I have two primary readouts, separate power supplies, etc. Of course we have discussed HUDs before. I do not believe in seconday readouts, and most HUDs are just that. They are also power pigs. I just prefer to see the numbers on my displays. PO2 gauge I also don't believe you need 3,4 or more sensors diving MCCR How many sensors BTW, I can't imagine ever trusting an ECCR unit and wouldn't dive one even if given one and the training to go with it. It is really a philosphical problem. An analogy on the phylosphy of MCCR diving and ECCR diving may be the differences between men and women, (other than the obvious differences), neither can really understand the other. Dale __________________ Gill Envy ...Because I wasn't born with gills! ><(°>><(°>><(°>><(°>><(°>><(°>><(°>><(°>
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8th June 2007, 00:36	#19 (permalink)
Dave Sutton Diveshop of Horrors Current Rebreather/s: Sport Kiss MK 15.X rEvo Other CCR Azimuth Home Build Other Rebreather/s: Classic Kiss rEvo Other CCR Azimuth Home Build Join Date: Jun 2006 Location: Narragansett, Rhode Island and Hackettstown, New Jersey Posts: 2,672	Re: Maybe eCCR's really aren't the wave of the future? Quote: (Originally Posted by bletso) Hey Dave, I just downloaded their info and watched the video. Nice piece of equipment, but..... One display, one controller. Not what I am comfortable with. And all those blinking codes!! I am just a simple minded bloke. Price isn't bad though. Dale Run it with a VR-3 as a tertiary system and you have all ya need..... it's simply excellent in actual use. I am an EXTREME sceptic on these topics... and with that said I am completely comfortable with the rEvodream, more so than any other package I have used. The codes are FAR more simple than the literature would indicate. GREEN means you are "OK". GREEN ONLY means you are dead-on. GREEN and ORANGE means that PP02 is "OK" but that it's time to push the add button for a second, and GREEN and RED means that you overshot the PP02 "a little". Yes, you can learn more by looking at the flash rate of the amber or red, but as long as it's green too, who cares? Just remember that "a little amber is a little low" and a "lot-o-amber is a lot-low". Even so, as long as there is still green ALSO you are safe, GREEN = YOU ARE OK (and likely to stay that way). My routine: When it goes to green+amber, I add for 3 seconds. It will either go to green-only or maybe green+red for a minute. I hang out and when it goes to green+amber I add another shot of 02. I actually deliberately run the 02 to green+red, watch it drop thru green-only, and at green+amber I add. The cycle takes me about 5-10 minutes. Amber only means "really low" and red only means "really high". That's pretty simple no? Dave __________________ "Changes in Lattitudes, Changes in Attitudes, Nothing remains quite the same".... www.nobubblediving.com Last edited by Dave Sutton : 8th June 2007 at 00:47.
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8th June 2007, 01:05	#20 (permalink)
Gill Envy Shearwater Copis Divers Current Rebreather/s: Other CCR Other Rebreather/s: Evolution Other CCR Join Date: Nov 2005 Location: seattle Posts: 1,314	Re: Maybe eCCR's really aren't the wave of the future? thanks Dave, so is there a stand alone HUD version of the rEVO, as with the shearwater?, which is basically a po2 monitor without a screen, but totally independent (unfortunately it can only run on all 3 cells). And, are you still strongly averse to sharing cells or shall I say, are you still an advocate of pure isolation down to at least one cell? g Quote: (Originally Posted by Dave Sutton) Howdy, rEvodream can be set to read either 1 or 2 cells. Each cell is displayed in a rotating sequence on both handset and HUD. You select one or two cells when setting it up. A great system for a mCCR is to use one rEvodream to monitor two cells, and use a VR-3 or similar for a redundant PP02 reading as well as deco. Works a champ. Loss of one system does not affect the other. You can also use a second rEvodream to look at additional cells. Using (2) rEvodreams, you can run two cells to one and one to the other and a VR-3 from a 4th cell, or share the VR-3 cell with one channel of the rEvodream and have each Revodream run 2 cells. Select the matrix that you like, and go with it. A single rEvodream with a HUD on 2 cells and a VR-3 on a 3rd cell is pretty darned sensible. And you can tuck the rEvodream handset away... once you adapt to the HUD you'll very rarely even look at the handset. The HUD displays the same data, from the same system, with the same resolution. The handset is really redundant. A green HUD and a glimpse at the VR-3 is all you need. Dave __________________ Gill Envy ...Because I wasn't born with gills! ><(°>><(°>><(°>><(°>><(°>><(°>><(°>><(°>
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