Quote: (Originally Posted by
Steve)
I would have thought the view that 2 sensors was rendered to the world of putting butter on burns.
Can someone explain to me how one can validate sensors if there are only 2? As I see it a dil flush drops the pO2 sure but with only 2 sensors you can't tell if the bung sensor has failed high or low. Bailout is the only prudent option. There are unfortunately enough dead people to bang this point home to us.
Assuming that bailout is the trained drill then why mention sensor validation at all?
What is the go?
Steve,
Before going commerical with the Pelagian I dove a converted IDA-71 using only one cell with the possibility to ad dil straight accross the cell membrane sucessfully for eight years and over 700 hours. It had lots of issues, but none regarding breathing one Po2 and believing it was something else. The reason for two cells is simply that it is quite common a cell dies during a dive. With staggered change outs the risk of two dying on the same dive is less likely. The core point is the ability to validate the cells easily. While loop purging a few times acomplish the same, it is quite common divers dont validate, in my opinion, frequently enough. Maybe because three loop flushes at 90 m uses quite a lot of diluent.
Andy