What is it?
This course examines the use of EAN 21 through 100% (oxygen) for optimal mixes to a depth of 130fsw/40msw. The object of this course is to train divers in the benefits, hazards and proper procedures for utilizing EAN 21 through 100% (oxygen) for dives not requiring staged decompression. (Decompression techniques may be combined with this course at the discretion of the instructor). 4 Dives (6 total if combined with deco)
What will we do? (Overview)
- Formula Work
- Equipment Considerations
- Dive Computers & Tables
- Dive Planning
- Common Mixing
Open Water Skills:
- Properly analyze gas mixtures
- Demonstrate adequate pre-dive planning; Limits based on personal gas consumption, limits based on O2 exposure at planned depth, limits based on nitrogen absorption at planned depth with actual mix
How long will it take?
- Classroom/Briefings- Approximately 3+ hours
- Open water dives- 4 (with a minimum accumulated bottom time of 100 minutes).
- Min age 15 unless taught in conjunction with TDI Decompression Procedures, then the minimum age is 18
- Nitrox Certified
- 25 logged dives
- Alternate second stage (octo) attached to a primary regulator or a redundant scuba unit (13cuft minimum)
- Submersible pressure gauge
- Depth gauge and automatic bottom timer and/or dive computer
- BCD with power inflator
- Exposure suit adequate for the open water environment (dry suit preferred)
- Tank (80cft min) and regulator properly labeled and cleaned as required for EANx mixtures
- Access to an oxygen analyzer (instructor may supply)
- Reel/Spool with 150 ft. minimum line
- Lift bag/Surface Marker Buoy (100 lb min lift)
- Cutting Device
- 2 tank boat
Students are responsible for: *
- All Equipment to include tanks
* Traveling to Honolulu or missing equipment? Discuss with your instructor.
Combine Advance ENx & Deco Procedures:$1139