PSCR profiles

[Jan Mulder]

On 07-10-14 13:21, Dirk Hohndel wrote:
>
>> Is it possible that no one is properly logging its pscr dives?
> I really don't know. I have learned that a large part of the recreational
> open circuit divers don't log their dives, period. Or have a perfunctuary
> paper logbook to fulfil country specific logging needs.
>
> I would have assumed that rebreather divers are more diligent, but I could
> be wrong.
>
I have a pretty good oversight in the PSCR/RB80 divers community esp. in 
the Netherlands and Belgium. I am not aware of anybody that is currently 
logging pp02 from a sensor. Even ppO2 sensors are used by only half of 
the group, but without logging attached; just for reference in more 
critical moments in the dive.

It is just not considered useful on a PSCR by most. We know that the 
ppO2 drops and that we have to vigilant when ascending and when 
switching gas. And we are perfectly happy with a known maximum drop from 
a decompression point of view.