Petrel Manual v1.2.0 - Shearwater Research

Shearwater Petrel SA & EXTIntroductionThe Shearwater Petrel is an advanced technical diving computer for open and closedcircuit divers.Although we strive to make the Petrel easy enough to use without reading the manual,please take some time to read this manual to get the best performance from your newcomputer. Diving involves risk and education is your best tool for managing this risk.Models Covered by this ManualThis manual provides operating instructions for the Petrel Standalone (SA) and PetrelExternal (EXT) models. For instructions on the Petrel rebreather controller models usingDiveCAN® communications, see the Shearwater DiveCAN® Petrel Manual.Feature List• Depth, time and oxygen sensor display• Bühlmann decompression model with gradient factors conservatism• Optional VPM-B decompression model• Imperial and metric displays• Available in Standalone (SA) model and External (EXT) PPO2 monitoring model• A menu system that adapts to diving status• Automatic turn off after 15 minutes on the surface• Depth sensor rated to 450 feet/140 meters of seawater• Dive Planner• Any combination of oxygen, nitrogen, and helium (Air, Nitrox, Trimix)• Open and closed circuit, switchable during a dive• 5 CC and 5 OC gases• Gases can be changed and added during a dive• CNS tracking• No lockout from violating deco stops• Automatic PPO2 set-point switching (configurable)• Two PPO2 set-points, each of which can be set between .4 and 1.5• Flexible user replaceable battery. Almost any ‘AA’ type• 1000 hour dive log memory• Log downloads and firmware upgrades using Bluetooth5Revision 1.2.0