JJ-CCR Mod 3

The CCR Level 3 course develops in the participant, the required abilities, knowledge and techniques conduct decompression dives safely and responsibly with the closed circuit JJ-CCR rebreather using sub-normoxic Trimix as diluent gas to a maximum depth of 90m.

This course prepares the student for the safe and responsible execution of decompression dives using helium mixes as diluent gas to a maximum depth of 90m.

All theoretical and practical aspects of TRIMIX diving or Heliox related to the JJ-CCR. Amongst other themes, the theory covers: 
physiological and psychological aspects of mixed-gas diving, decompression planning, equipment configuration for multiple bailout cylinders, use of bail-out gases, safe dive practices and emergency procedures with the rebreather.

An important point is the planning and calculation of dives with the integral Shearwater software as well as computer-based diving tables such as GAP, V-Planner or Proplanner software etc.

The training dives include the proper planning, gas analysis and labeling, equipment familiarization (removal, replacement and use of travel/deco mix bail-out stages) emergency and out-of-gas procedures (bail-out, rescue ascent, etc.), ascent reel and lift bag deployment, and proper CCR decompression techniques.

The training reflects the standards required by the manufacturer of the rebreather. IART is authorized by the manufacturer to conduct this training. 
The IART Level III course manual is constantly revised and improved in consultation with the manufacturer to reflect new developments resulting from technical improvements or gained through dive experience. You will receive the current edition from your IART JJ-CCR instructor.

 

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  1. Course:
    Closed Circuit Rebreather Diver Level III (CCR Level III) - diluent Trimix or Heliox

  2. Course Objective:
    This course is designed to provide experience and training for mixed gas diving with the JJ-CCR to a maximum depth of 90 msw. The JJ-CCR level III Diver course gives the opportunity to safely learn the techniques and theory for deep decompression dives with helium based mixes as a diluent.

  3. Pre-requisites:
    1. OPTION:(6 dive course)
      Minimum 18 years of age, certification as IART CCR Level II Extended Range (air) Diver or equivalent (e.g. IANTD, TDI or ANDI) plus a minimum of 50 hours dive time with the JJ-CCR following completion of Level II training (with no less than 20 hours at depths beyond 35m) and at the instructor's request a valid diving medical.
    2. OPTION:(4 dive course)
      Minimum of 18 years of age, certification as IART CCR Level II Extended Range (normoxic Trimix) Diver or equivalent plus a minimum of 50 hours dive time with the JJ-CCR following completion of Level II training (with not less than 20 hours deeper than 35m, 5 hours of which must be normoxic Trimix dives) and at the instructor's request a valid diving medical
    3. or: certification as IART OC Trimix Diver (or equivalent) plus a minimum of 100 hours dive time logged with the JJ-CCR and 40 dives deeper than 40m

  4. Content/Course minimum:
    All theoretical and practical aspects of Trimix or Heliox diving with the JJ-CCR. The classroom sessions should explain the physical and physiological hazards of mixed gas diving, decompression planning, some equipment considerations for mixed gas diving such as diluent and bail-out selection, and all the procedures involved. An important point is dive planning using computer-based dive tables such as V-Planner, Z-Plan, ProPlanner, etc.
    For Option A the practical part of the course includes 6 dives over 6 days, with a minimum accumulated in-water time of 360 mins.
    For Option B the practical part of the course includes 4 dives over 4 days, with a minimum accumulated in-water time of 240 mins.
    The instructor-to-student ratio is 1:2.

  5. Support material:
    IART Level III JJ-CCR Manual, NOAA 02-exposure table, mixed gas dive planning software suitable for use with a CCR, flash-cards, Instructor USB-stick and Instructor presentation materials.

  6. Required equipment:
    JJ-CCR, separate bail-out tanks, lift bag, safety reel, knife or tool, decompression table, slate, back-up CCR computer or depth gauge and bottom timer. 2nd mask. Waterproof pre-dive checklist. The rebreather should be equipped with an oxygen second stage bail-out.

  7. Limits:
    The maximum depth during training is 80 msw. At least 2 dives should be conducted at a minimum of 60 msw depth. Required ascent/deco time should not exceed 60 minutes

  8. Practical skills:
    The dives should include the proper planning, gas analysing and labelling, equipment familiarization (Travel/Deco mix bottles removal/replacement) emergency and out-of-air procedures (Gas sharing, Rescue ascent, etc.), ascent reel and lift bag deployment, and proper decompression techniques.

  9. Certification requirements:
    The student must satisfactorily complete a written exam. Once training requirements are met the instructor must submit an application in order to obtain the corresponding IART certification card. In accordance with IART Quality Control, the student and Instructor are required to fill in the training protocol form. The instructor must retain this form with the student file.

  10. Certification:
    IART HQ

  11. Certification Renewal:
    not required

 

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