TDI Advanced Trimix Diver

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Der TDI Advanced Trimix Diver Kurs ist der Top Level Kurs für Taucher mit offenem Kreislauf. Es wird bis zu einer Tiefe von 100 Metern / 330 Fuß mit hypoxischem Sauerstoff (unter 17 Prozent) getaucht. Dieser Kurs ist vielleicht einer der informativsten und herausforderndsten Kurse aller TDI-Kurse. Nach Abschluss gehörst Du zu den Elite-Tauchern, und bist in der Lage, beim Tauchen mehr zu tun und zu sehen als andere Taucher.


  • Max 3 Schüler per Instruktor
  • Dauer: 5 Tage / 6 Tauchgänge
  • Preis: 1.490 CHF
  • Im Preis enthalten: Online-Training, Theorie, Pool, Freiwasser-Tauchgänge
  • Im Preis nicht enthalten: Gase, Leihausrüstung, Zertifizierungsgebühren
  • Max Tiefe: 100mt. / 330 feet

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Course specifications

Who this course is for:

  • The TDI Extended Range or Trimix Diver looking to:
    • Extend their depth range
    • Advance their technical diving education

Course prerequisites:

  • Minimum age 18
  • Minimum certification of TDI Extended Range or Trimix Diver or equivalent
  • Show proof of 100 logged dives, 25 must be deeper than 30metres/100feet

What you can expect to learn:

  • Advanced decompression dive planning including:
    • Gas planning based on equivalent narcotic depths, nitrogen and helium absorption and elimination, CNS and OTU limits, isobaric counter diffusion, volume requirements, etc.
    • Use of hypoxic gasses
    • HPNS and isobaric counter diffusion
    • Decompression gas choices
    • Tables vs. personal dive computers
    • Emergency and contingency planning (equipment failure, omitted decompression, etc.)
  • Decompression diving procedures
    • Equipment selection
    • Pre-dive checks and drills
    • Stress analysis and mitigation
    • Following a decompression schedule
    • Gas switching
    • Team awareness and communication
    • SMB/lift bag deployment
  • Proper trim, buoyancy and fining techniques
  • Management of multiple (minimum of 3) decompression/stage cylinders
  • Emergency procedures (equipment failures, catastrophic gas loss, omitted decompression, navigational errors, injured/unconscious diver, etc)
  • Equipment considerations, cylinder labeling, analyzing trimix nitrox and mixes, and gas blending procedures

What’s in it for you?

  • Ability to conduct technical diving activities using custom trimix mixtures without direct supervision, so long as the following limits are adhered to:
    • The diving activities approximate those of training
    • The areas of activities approximate those of training
    • Environmental conditions approximate those of training

Minimum certification requirements:

  • Satisfactorily complete the TDI Advanced Trimix course written examination with a passing score of 80%, followed by 100% remediation by the instructor
  • Complete all open water requirements safely and efficiently
  • Demonstrate mature, sound judgment concerning dive planning and execution