Oceanic VEO 3.0 Operating Manual - page 52
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ALGORITHM
The VEO is configured with 2 algorithms which allows you to choose which set of NDLs
(No Deco Limits) will be used for nitrogen/oxygen calculations and displays relating to
Plan and DTR (Dive Time Remaining).
You can select to use either the DSAT or the PZ+. The selection will lock in for 24 hours
after the last dive.
DSAT has been the standard used by Oceanic in all of its dive computers until this
time. It features NDLs that are based on exposures and test data which also formed
validation for the PADI RDP. It imposes restrictions for repetitive deep or Deco dives,
considered more risky.
PZ+ (Pelagic Z+) performance is based on Buhlmann ZHL-16c. It features NDLs that
are considerably more conservative especially at shallower depths.
To create even greater margins of safety with respect to decompression, a Conservative
Factor as well as No Deco Deep and Safety Stops can be included for No Deco dives.
CONSERVATIVE FACTOR (CF)
When the CF is set On, the NDLs which are based on the algorithm selected and used for
Ni/O2 calculations and displays relating to Plan and DTR, will be reduced to the values
available at the altitude level that is 3,000 feet (915 meters) higher. Refer to the charts in
the back of this manual for times.