Quote: (Originally Posted by
gibbogeo)
They will measure the oxygen content in the bags when it switch on, then every time the FO2 (not the PPO2) drops (as when you start to descend and you add diluent) it assume you are overbreathing and give you more deco to do.
I have been told ever worse : in case the FO2 raises above initial value, this would be considered a AirZ system failure and the display went off, not even giving mix instant value.
But I had no chance to test it myself.