Advanced Nitrox | Underwater Explorers

YOUR FIRST STEP IN TECHNICAL DIVING

The objective of the stand-alone TDI Advanced Nitrox course is to train divers in the benefits, hazards and proper procedures for utilizing EAN-21% through 100% Oxygen for dives not requiring staged decompression to a maximum depth of 40m. At UE this course is generally taught in conjunction with TDI Helitrox (Decompression Procedures) or TDI Deco Procedures.

The Advanced Nitrox course can be taken as a single 2-3 day certification course (with a total of 4 dives). You only need 6 dives when it is run in conjunction with the more popular Helitrox Course that teaches divers the techniques of stage decompression while having the option of using Helium up to 20% on deeper dives. The combined course is over 3-4 days depending on performance and boat availability.

SCOPE & OPTIONS

- Advanced Nitrox (No deco, max 40m, up to 100% O2) CHECK PRICES
- RECOMMENDED: Advanced Nitrox + Helitrox (Deco, max 45m, up to 20% Helium content, up to 100% O2) CHECK PRICES
- Advanced Nitrox + Decompression Procedures (Deco, max 45m, no Helium, up to 100% O2) CHECK PRICES

PREREQUISITES

   - Minimum age of 18
   - Basic nitrox certification (any agency)
   - Proof of 25 logged open water dives (or 50 logged dives for the Advanced Nitrox + Helitrox Combined option)

Download the Advanced Nitrox Course Standards

According to the option you select, a minimum of 4 to 6 training dives are required with varying accumulated bottom times.

The course fee includes all required TDI manuals (with individual registration numbers for each student logged at TDI HQ) and all TDI certification fees. Boat fees and gas fills are not included.

Together with the recommended TDI Helitrox Course option (or the alternative non-Helium based TDI Decompression Procedures course) successful candidates would meet the pre-requisites for the TDI full trimix course.The courses are run either over consecutive days or over two weekends. Where boats have to be cancelled due to adverse weather/wind conditions, course dives will be postponed to mutually convenient dates to be arranged with students. We strongly encourage early enrolment allowing time for self-study, preparation and pre-course mentoring.

Additional Pre-Requisites (UE):

Candidates for Advanced Nitrox or additional decompression training at Underwater Explorers are required to show proof of at least 20 logged dives in the past 6 months prior to commencement of the course or book on a 1 day pre-course familiarisation and assessment session with our technical instructor.

For students seeking Advanced Nitrox training *combined* with Helitrox or Nitrox stage decompression courses, please take a look at our Combined Course Package.

EQUIPMENT REQUIREMENTS

   - Individual SMB & Reel and cutting tool
   - Underwater slate or (recommended) notepad
   - Digital Bottom Timer - Gauge (a dive computer is not compulsory)
   - Primary torch (a backup torch is also highly recommended)
   - Alternative second stage attached to a primary regulator or redundant scuba unit
   - Exposure suit adequate for open water environment (dry suit)
   - Cylinder and regulator properly labelled and cleaned as required for Nitrox (Twinset and stage bottle for decompression options)

Underwater Explorers is able to provide some of the required equipment for the duration of course free of charge (subject to availability) Equipment available for student use includes twinset, regulators, harness & wings, stage bottles, stage bottle regulators, digital gauges, jetfins) Torches can be rented from the centre at a special discount price for the duration of the course.

PERFORMANCE REQUIREMENTS

   - Demonstrate ability to hover at fixed position without moving hands or feet.
   - Show good awareness of team members through communications, proximity and team oriented dive practices.
   - Demonstrate ability to manage freeflow from primary regulator in controlled.
   - Deploy SMB correctly while maintaining position in mid-water.
   - Conduct appropriate safety stop while using SMB.
   - Demonstrate ability to share back gas with buddy as both recipient and donor in mid-water
   - Demonstrate correct body position (appropriate trim, such as horizontal / streamlined).
   - Demonstrate correct stress analysis with self and team members.
   - Calculate and log CNS loading for each dive including cumulative exposure where appropriate
   - Demonstrate correct use of oxygen analyzer including optimal procedure for calibration.
   - Demonstrate understanding of gas labeling.
   - Demonstrate adherence to conventions regarding prep equipment for oxygen service.
   - Satisfactorily complete the TDI Advanced Nitrox Course written examination.
   - Complete all open water requirements safely and efficiently.
   - Demonstrate mature, sound judgment concerning dive planning and execution.