So if you cal in o2, flush it back with air and get 0.21 whats the point of doing a 2 point cal (and its potential for more error)? and if you dont get 0.21 it could be the o2 cal that is off not the cell being non-linear. And anyway how much non-linear do we actually care about!!!
I take your point about maybe a bit of non linear at the cal point MAY show an impending current limit and it is my belief that all rebreathrs should be able to calibrate at or above your chosen setpoint. Thats what they do on the Divex stealth!
Actually I agree with almost everything you say but I still dont understand why you cant do all of that with a po2 reading as opposed to a MV reading ? especially as you agree the are the same output!
I guess I am just interested with the opinion of some that unless you have a millivolt output reading you cant catch a bad cell and although I have been diving rebreathers for over 15 years I am not stupid enough to think there is nothing more to learn!!
but I seem to have managed so far with just a po2 reading and one cal point (no sarcasm intended
)
Now about this erectile dysfunction
best
Dave