The Professional Scuba Association International’s Cave Decompression Diver course is designed for those divers who wish to utilize enriched air (Nitrox) at oxygen concentrations up to and including 100% by volume (EAN22 to Oxygen) in their diving activities including stage decompression procedures. It is highly recommended the Cave Decompression Diver students also take Narcosis Management® – Level II in order to expand and enhance their ERD knowledge, skills and training, and to prepare them for required deco stops.
COURSE CONTENT INCLUDES:
History of Enriched Air Diving:
- Early uses of Nitrox.
- Popular acceptance of Nitrox.
- PSAI’s involvement in Nitrox Education.
Physical Principles of Enriched Air Diving:
- Boyle’s Law.
- Dalton’s Law.
- Formulas for Advanced Nitrox Diving.
- Best Mix.
- Oxygen Exposure.
- Maximum Operating Depth.
Physiological Principles of Enriched Air Diving:
- Benefits of Nitrox.
- Hazards of Excess Oxygen.
- Decompression Models.
- Accelerated Decompression.
Equipment for Enriched Air Diving:
- Standard Equipment.
- Cylinder Considerations.
- Manufacturer’s Recommendations.
- Equivalent Air Depth and Tables.
- Computing Best Mix and Maximum Operating Depth.
- Use of Dive Computers.
- Dive Planning Tables.
- Computer Generated Dive Profiles.
Methods of Generating Nitrox:
- Partial Pressure.
- Continuous Blend Technique.
- Gas Permeable Membrane Technique.
- Pre-mixed Gas.
Limits, Maximum Operating Depth.