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Air Diluent CCR Diver

Closed circuit rebreathers are without doubt, the diving platform for almost any deep/long technical dives. Increased bottom times, reduced gas usage and significantly reduced decompression obligations are just a few of the advantages of using a CCR for modern day technical diving.

Unit Specific for Inspiration/Evolution, KISS, Optima, Megaladon, Sentinel, PRISM, rEvo, Pelegian and Titan.The TDI Air Diluent Closed Circuit Diver Course (certification depends on unit/electronics used) is your first step into closed circuit rebreather diving (CCR Diving) and your first truly quiet diving experience.

Using the latest in technology CCR’s maximize your gas supply of Nitrox and provide the optimum breathing gas for any depth by maintaining a constant partial pressure of oxygen (PPO2). During the dives (minimum of seven) your TDI Instructor will teach you all the necessary skills to conduct CCR dives to a maximum depth of 30 m/100 feet. The skills for this CCR Diving Course include:

  • Setup and maintenance of the unit
  • Loop volume management
  • Calibration of electronics
  • Emergency procedures
  • Buoyancy control
  • CNS tracking

Air Diluent Deco CCR Diver

This is the second level certification course for divers wishing to utilize a closed circuit rebreather (CCR) for air diving. The objective of the course is to train divers in the benefits, hazards and proper procedures for diving a CCR and to develop basic CCR diving skills to a maximum depth of 45 metres / 150 feet using an air diluent for formal decompression diving.

Mixed Gas CCR Diver

The TDI Mixed Gas course (certification depends on unit/electronice used) is your next step into closed circuit rebreather diving and with the addition of helium as a diluent gas, it is your opportunity to explore a little deeper. Using the lastest in technology CCR’s maximize your gas supply and provide the optimum breathing gas for any depth by maintaining a constant partial pressure of oxygen(PPO2). During the dives (minimum of 6) your TDI Instructor will teach you all the necessary skills to conduct CCR dives utilizing helium as a diluent gas and oxygen levels as low as 16 percent to a maximum depth of 60 m/200 feet. The skills include:

  • Calculating off-board gas requirements
  • Recovering from system failure
  • Calibration of electronics
  • Emergency procedures
  • Removing and replacing off-board gases
  • Surface marker buoy deployment

The individual TDI manuals provide comprehensive information about the unites and how they operate during a dive, this combined with the TDI Trimix Diver manual complete the academic knowledge needed to conduct mixed gas CCR.

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