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To Closed Circuit Rebreather Operations
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Operations Manual Petrel 1 / Petrel 2 - Shearwater Research
www.shearwater.comClosed Circuit (Int PPO2) Menu Structure 24 ... For instructions on the Petrel rebreather controller models using DiveCAN® communications, see the Shearwater DiveCAN® Petrel Manual ... Except for turning the Petrel on, all operations are simple single button presses ...