Petrel - Advanced Configuration Screen 2

[Ouvea]

Hello:

Could someone explain this menu? Are these the partial pressure of Oxygen at maximum operating depth? Should I leave these alone or change them? Manual states not to alter them but I would prefer knowing the reasons behind the logic. My Petrel is configured of OC only (32% Nitrox). Adv Config 2 shows:

OC Min PP02 0.19
OC Max PP02 1.65
OC Deco PP02 1.61

Assistance is greatly appreciated. Thanks,

O.

 

[Akroedge540]

That is correct. Settings vary from person to person but this is what I have mine set to.

Max P02 of 1.4
Minimum of .21
Deco P02 of 1.6

Im only OC and no trimix, so I dont use a petrel to its full potential.

 

[Peter69_56]

Hello:

Could someone explain this menu? Are these the partial pressure of Oxygen at maximum operating depth? Should I leave these alone or change them? Manual states not to alter them but I would prefer knowing the reasons behind the logic. My Petrel is configured of OC only (32% Nitrox). Adv Config 2 shows:

OC Min PP02 0.19
OC Max PP02 1.65
OC Deco PP02 1.61

Assistance is greatly appreciated. Thanks,

O.

They are the settings you use for both the maximum PPO2 for bottom gas and deco gas and the minimum PPO2 setting. You set the max PPO2 and the computer will tell you when you reach them and will also recommend gas changes based on these settings. The low PPO2 being when you are using Trimix etc and have the potential to go below say 0.18 on ascent.

Mine are set for;

Max P02 of 1.5
Minimum of .18
Deco P02 of 1.5

 

[markmantei]

Thank you for finding this. I will need to change the min ppo2, as at altitude the petrel always complains of low ppo2 on the surface Didn't bother me that much but this will fix the problem.

 

[gekodivebali]

It's good to set it a little more liberal than what you are using so that alarms don't go off when you err close to the limits. Ie, 1.5 for bottom PO2, 1.65 for deco...