


TDI 45m helitrox (mod1)
32.000.000 IDR, 7 days, 8 dives (excl gas)
This is the second level certification course for divers wishing to utilize a Closed Circuit Rebreather (CCR) for mixed gas diving using a Helitrox Diluent. 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 of 45 metres/150 feet, using an air/nitrox/helium diluent for formal decompression diving. Students are permitted to utilize a diluent and bailout mix with no greater than a 35% helium content and no less than a 21% oxygen content, and are permitted to use up to 100% oxygen for decompression.

Who is this course for?
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The certified TDI Air Diluent Diver (or equivalent) who is looking to extend their depth limitations, learn CCR decompression procedures, and reduce narcosis
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The open circuit TDI Advanced Nitrox and Decompression Procedures or Helitrox Diver looking to utilize CCR technology to extend their depth limits and bottom times
Course Prerequisites
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Minimum age 18
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Proof of 50 logged dives
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Minimum certification level of TDI Advanced Nitrox Diver, Deco Procedures Diver or Helitrox diver or equivalent from agencies recognized by TDI
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If the rebreather is a TDI approved sidemount rebreather, the student must hold the TDI Sidemount Diver Certification or equivalent and provide proof of 10 logged sidemount dives
OR
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Minimum age 18
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TDI Air Diluent CCR Diver certified or equivalent
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30 hours on the CCR unit
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Six months CCR diving experience
What you can expect to learn
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History and evolution of rebreathers
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Comparison of Open Circuit (OC), closed circuit, and Semi-closed Circuit Rebreather (SCR) systems noting the pros and cons of each
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Practical mechanics of the system
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Gas physiology
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Proper scrubber packing: in accordance with manufacturers recommendation
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Electronic or manual systems design and maintenance
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Dive planning
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Emergency procedures
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Dive checklists
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Predive checks
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Helium considerations

What's in it for you
Upon successful completion of this course, graduates may engage in decompression diving activities utilizing the CCR they were trained to dive with, without direct supervision of the TDI Instructor so long as the following limits are adhered to:
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The diving activities approximate those of training
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The areas of activities approximate those of training
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Environmental conditions approximate those of training
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To a maximum depth of 45 metres/150 feet
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Utilizing helitrox
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Duration
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7 days
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Minimum of 8 dives
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1 confined session
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Classroom and maintenance sessions
Certification requirements
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Satisfactorily complete the TDI CCR Air Diluent Decompression examination with a passing score of 80%, followed by 100% remediation by the Instructor
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Complete all open water requirements efficiently
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Demonstrate mature and sound judgment concerning dive planning and execution
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Course must be completed within 6 weeks from the starting date
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Complete a refresher course following a period of inactivity greater than 6 months following the course