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**Gill Envy** · 19th February 2008, 17:58

If I went back to diving eCCR's, I still think I'd find a way to integrate my shearwater HUD. All I can say to your proposal is that HUDS should be dedicated to PO2 only, as it's the one thing that can change quickly and kill you. It's the one thing you should be focussed on all the time. Everything else is negotiable. If you make it too complicated you'll likely zone out on it.

Having the HUD be po2 only and totally isolated from the set point controller would open that very motivating window into truly monitoring weather the life support system is doing what it's supposed to. I think one of the problems with an integrated HUD is that it's part and parcel, the same system you see on your handset and you are relying on it to alert you to a problem when the problem is likely related to the very system it's self. the reassurance is a deception, IMHO.

I really like that with a glance to my HUD and a glance to my wrist I have cross checked two systems and proportioned the monitoring of deco to po2 to a degree which reflects their order of importance.

but yeah, there is a lot to wade through on the above mentioned thread... worth checking out.

With an eCCR, I agree that red should only be used when things are truly going bad. on an mCCR you are constantly interpreting the information and using it to maintain the set point, color seems less critical because it's not being used as an alarm system.

19th February 2008, 17:58	#3 (permalink)
Gill Envy Shearwater Copis Divers Current Rebreather/s: Other CCR Other Rebreather/s: Evolution Other CCR Join Date: Nov 2005 Location: seattle Posts: 1,313	Re: I'm not really happy with todays HUDS.. If I went back to diving eCCR's, I still think I'd find a way to integrate my shearwater HUD. All I can say to your proposal is that HUDS should be dedicated to PO2 only, as it's the one thing that can change quickly and kill you. It's the one thing you should be focussed on all the time. Everything else is negotiable. If you make it too complicated you'll likely zone out on it. Having the HUD be po2 only and totally isolated from the set point controller would open that very motivating window into truly monitoring weather the life support system is doing what it's supposed to. I think one of the problems with an integrated HUD is that it's part and parcel, the same system you see on your handset and you are relying on it to alert you to a problem when the problem is likely related to the very system it's self. the reassurance is a deception, IMHO. I really like that with a glance to my HUD and a glance to my wrist I have cross checked two systems and proportioned the monitoring of deco to po2 to a degree which reflects their order of importance. but yeah, there is a lot to wade through on the above mentioned thread... worth checking out. With an eCCR, I agree that red should only be used when things are truly going bad. on an mCCR you are constantly interpreting the information and using it to maintain the set point, color seems less critical because it's not being used as an alarm system. __________________ Gill Envy ...Because I wasn't born with gills! ><(°>><(°>><(°>><(°>><(°>><(°>><(°>><(°>
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