Quote: (Originally Posted by
Mike)
...if you're going to dive an ECCR, why not use it?
If you want to fly manual, save a bunch of cash and get a MCCR.
Mike
The trouble with running a ECCR as a MCCR is that the KISS valved units actually are designed to maintain a continuous level of O2 injection without any intervention. The danger for users manually flying their units with the assumption that when you get distracted the electronics will cut in - is if the setpoint controller does not work and you are not aware of it because you have not been making the unit electronically add O2 (eg if the batteries are too low to fire the solenoid but enough power to run the display) then there will not be ANY O2 injection when you need it.
Practicing manually controlling your PPO2 and continuously monitoring your PPO2 should not be any less safe than manually flying a ECCR.