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**Gill Envy** · 12th July 2006, 19:43

while I'm a newbie to rebreather diving and i'm a bit dishartened by the solenoid on my wife's evo going tits up last week, I do still love vision electronics. Mostly i'm just in that initial curve of learning where you go from emphatic to healthy mistrust of rebreathers in general, something that is more likely to save my bacon than have me give up the sport.

What has impressed me the most about the vision electronics is the temp stick, while there is not an actual direct correlation between the temperature reading and CO2 breakthrough, i am convinced that it is a huge improvement over not having one.

My two cents is that you will need to get used to how the reading fluctuates with depth, it's similar to the difference with depth in predicted air time on an air integrated computer, in a similar way to how the air time decreases as you go deeper and increases as you go from deeper to shallower, you will notice the scurbber meeter on the hand set "adjust" with depth. I'm not sure if the reading is padded as you go deeper as an extra precaution or if the difference in temperature is directly correlated to depth. I do know that if you do subsequent dives on the same scrubber you need to take this fluctuation into account and realize that a scrubber can show you an unrealistically favorable reading at the beginning of the next dive but significantly reduce as you go deeper...you need to factor in total bottom time and max depth of previous dives with what you are seeing on the temp stick indicator initially at the beginning of next dive. As a rule, i chuck the scrubber after each dive if the dive is below recreational limits and do shallower max depths with each subsequent dive.

I have gotten a scrubber warning toward the end of a dive and then in the shallows it's bounced back to half, and then when i've gone off loop it shot up to a three quarter reading, just realize it's heat that it's monitoring and that is it. it's actually not that complicated, just learn it's personality and stay within safe limits and i think you will find it is very handy.

12th July 2006, 19:43	#2 (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: Just Got My New Vision while I'm a newbie to rebreather diving and i'm a bit dishartened by the solenoid on my wife's evo going tits up last week, I do still love vision electronics. Mostly i'm just in that initial curve of learning where you go from emphatic to healthy mistrust of rebreathers in general, something that is more likely to save my bacon than have me give up the sport. What has impressed me the most about the vision electronics is the temp stick, while there is not an actual direct correlation between the temperature reading and CO2 breakthrough, i am convinced that it is a huge improvement over not having one. My two cents is that you will need to get used to how the reading fluctuates with depth, it's similar to the difference with depth in predicted air time on an air integrated computer, in a similar way to how the air time decreases as you go deeper and increases as you go from deeper to shallower, you will notice the scurbber meeter on the hand set "adjust" with depth. I'm not sure if the reading is padded as you go deeper as an extra precaution or if the difference in temperature is directly correlated to depth. I do know that if you do subsequent dives on the same scrubber you need to take this fluctuation into account and realize that a scrubber can show you an unrealistically favorable reading at the beginning of the next dive but significantly reduce as you go deeper...you need to factor in total bottom time and max depth of previous dives with what you are seeing on the temp stick indicator initially at the beginning of next dive. As a rule, i chuck the scrubber after each dive if the dive is below recreational limits and do shallower max depths with each subsequent dive. I have gotten a scrubber warning toward the end of a dive and then in the shallows it's bounced back to half, and then when i've gone off loop it shot up to a three quarter reading, just realize it's heat that it's monitoring and that is it. it's actually not that complicated, just learn it's personality and stay within safe limits and i think you will find it is very handy. __________________ Gill Envy ...Because I wasn't born with gills! ><(°>><(°>><(°>><(°>><(°>><(°>><(°>><(°> Last edited by Gill Envy : 12th July 2006 at 19:47.
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