Advanced Nitrox / Decompression Procedures
Extended Range / Trimix / Advanced Trimix
The TDI Advanced Nitrox Course qualifies divers to use enriched air nitrox from EAN 21
through EAN 100 to a depth of 40 metres/130 feet during dives that do not require
staged decompression. Often taught in conjunction with the TDI Decompression
Procedures course, this can be considered the foundation of your technical diving
career. Advanced Nitrox is also a great course for those wanting to extend their bottom
times in shallower depths such as scientific diver, and a must for SCR or CCR divers.
The course cover topics like: (1) Equipment Configuration, (2) Dive Planning, (3)
Oxygen Tracking and (4) Blending Methods.
Upon successful completion of this course, you will be qualified to dive using multiple
gas blends up to 100% pure oxygen. Additionally, you will be able to enroll in TDI
Decompression Procedures Course and TDI Extended Range Course.
Equipment Requirements
- Dual Tanks (a minimum of 120 cu ft of air) with a manifold connecting the tanks
and an isolation valve.
- Submersible pressure gauge
- Depth gauge, bottom timer and/or dive computer (does not need to be air
integrated).
- Proper Cylinder Markings for Gas in Cylinder
- Oxygen Analyzer
- Pony Bottle with Oxygen Mix greater than Main Cylinders (min. 19 cu ft)
- Slate, Compass, Reel and Surface Marker Buoy
Materials Requirements
- TDI Advanced Nitrox Student Manual
- TDI EAD I PO2 Tables
- Subscription to Scubaboard
- Calculator, Notebook, Pen/Pencil
- Logbook / Clipboard
Students Prerequisites
- Be a minimum of fifteen (15) years old.
- Have a minimum certification of Basic Nitrox Diver or Equivalent
- Show proof of twenty-five (25) logged open water dives
- If this course is taught in conjunction with the TDI Decompression Procedures
Course, then the minimum age is eighteen
