Extended Range Diver

Extended Range Diver

This course provides training and experience required to competently utilize air for dives up to 55 metres / 180 feet that requires staged decompression, utilizing nitrox mixtures or oxygen during decompression. The objective of this course is to train divers in the proper techniques, equipment requirements, and hazards of deep air diving to a maximum of 55 metres / 180 feet utilizing nitrox mixtures or oxygen for staged decompression.

 

 

  1. Minimum age of 18
  2. Certified as a TDI Advanced Nitrox Diver and TDI Decompression Procedures Diver, or equivalents
  3. Provide proof of a minimum of 100 logged dives, of which 25 must be deeper than 30 metres / 100 feet
TDI Extended Range Entry Level Trimix Diver Manual
The TDI Extended Range Diver course requires a minimum of 4 dives conducted over a minimum of 3 days. The first day will be spent in the classroom discussing dive planning and procedures and will include time for equipment configuration and exam review.  The following days will be spent in the water conducting dives which are appropriate to the diver’s experience and training level.
  1. Mask and fins
  2. Backup mask recommended
  3. Exposure protection (dry suit and undergarment or 7mm wet suit)
  4. Dual primary cylinders (sidemount or backmount)
  5. Two first and second stage regulators
  6. One SPG for backmount or two SPGs for sidemount
  7. 7′ long hose
  8. One decompression cylinder (minimum 40 cf)
  9. One first and second stage with SPG for deco cylinder
  10. BCD inflator hose and/or dry suit inflator hose
  11. Buoyancy Compensating Device (BCD)
  12. Two depth and timing devices
  13. Two cutting devices
  14. One primary light
  15. Two backup lights
  16. Primary reel with a minimum of 250 ft of line
  17. Lift bag/surface marker buoy (minimum of 25lbs lift)
  18. Waterproof notebook and underwater slate
  19. Oxygen analyzer, recommended