Choose Pelagic DSAT for:
Liberal Recreational Diving
The OCEANIC DSAT Algorithm safely maximizes dive time for repetitive, multi-level recreational diving. This algorithm relies on the human Doppler studies used to develop PADI’s Recreational Dive Planner (RDP), and has been the basis of OCEANIC's and other manufacturer's computer algorithms for many years.
Choose OCEANIC Z+ for:
Conservative Recreational Diving. Liberal Repetitive Deep and Decompression Diving
The OCEANIC Z+ uses the Buhlmann ZHL-16C database, which was conducted to meet the more rigorous demands of repetitive, cold-water decompression diving at altitude. The Pelagic Z+ mode maximizes dive times at depth without penalties. Dive in sync with any buddy, anywhere.
Because the VEO 1.0, 2.0 and 3.0 allow you to adjust the algorithm basis. Diving the same profile increases safety for both divers, and eliminates the need for one person to conduct a much longer or deeper stop when buddying with someone wearing a more liberal dive computer. On repetitive dives, there is no more waiting for the more conservative dive computer to clear. Both buddies will be ready to enter the water at the same time and can continue to dive the same profiles. You can’t control which dive computer your buddy wears, but you can control your ability to dive the same profille.
Depending on the model you choose, there are up to 3 Operating Modes: NORM (Air and Nitrox), GAUGE (with run timer) and FREE. Also up to 3 Operating Buttons with "Step Back" interface - allows forward and backward navigation. You can - depending on the model - switch between up to 2 Nitrox mixes to 100% O2 with no restriction (Gas 1 may be up to 100%, and may be less or greater than Gas 2). Other features are: Single button access to "Last Dive", Data Retention - maintains calculations indefinitely when the battery ischanged, SmartGlo Backlighting senses ambient light, 24 dive on-unit log book, History Mode, optional PC Interface with OceanLog Download and Settings Upload, Firmware Auto-Update: download and install the latest firmware - these may be operational improvements or even new features!
As well you will find a Deep Stop function with Countdown Timer. Maybe turned on or off. 2 minute countdown at half your max depth, for dives greater than 80 ft / 25m.
A note about deep stops:
Both algorithms allow (user ON/OFF option) credit for deep stops for No-Decompression dives in keeping with the data of Morroni et al (2004) and Bennett et al (2007). No penalty is given if the diver skips the deep stop, but it is strongly recommended that a shallow safety stop be made with or without the deep stop in keeping with the experiments of Pilmanis (1975).
It is important to note that neither algorithm provides deep stops for decompression dives since there is ample experimental data [Blatteau et al (2005), Gerth et al (2007), and Gutvik et al (2007)] that indicate that this practice often produces an increase in the risk of DCS.
