Advanced Nitrox Diver

The TDI  Advanced Nitrox course qualifies divers to use enriched air nitrox from EAN 21.

EAN 100 is taught to a depth of 40 meters/130 feet during dives that do not require  staged decompression and in conjunction with the Decompression Procedures course .

This can be considered  the foundation of your technical diving career. Advanced nitrox is also a great course  for those wanting  to extend their  bottom time in shallower depths like scientific divers, and a must for SCR or CCR divers.

The course covers topics like:

Equipment Requirements
Dive Planning
Oxygen tracking
Bending  methods

You  will a use TDI Advanced Nitrox diving  manual for your course, wich explains in an easy to understand practical manner, the complex information that Advanced Nitrox  divers need to know.

This program examines the use of EAN 22 through 100 percent oxygen for optimal mixes to a depth of 150fsw. The objective of this course is to train divers in the benefits, hazards and proper procedures for utilizing EAN 22 through 100 % oxygen for dives not requiring staged decompression.

Pre requisites
• Must be a qualified Open Water Diver and Nitrox Diver.
• Must be a minimum of 15 years age.
• Show proof of 25 logged open water dives.

Program Content
• Program covers all EANx mixes from 21% to a maximum of 100% oxygen.
• 4 dives are required with a minimum accumulated bottom time of one hundred minutes.
• Instructor is allowed to structure courses according to the number of students participating and their skill level.
• The minimum number of classroom and briefing is 6 hours.

Qualification requirements
• Satisfactorily complete the TDI Advanced Nitrox Course written examination. (Minimum score 80%)
• Complete all open water requirements safely and efficiently.
• Demonstrate mature, sound judgment concerning dive planning and execution.

• Student must have the Advanced Nitrox Training Manual.
• Complete a liability release.
• Complete medical statement, if in doubt requires medical examination by hyperbaric physician.
• Students understand the financial obligation resulting in his/her training, refer to price list.
• Instructor is required to fill out the student performance track sheet.

• Lectures can be done during evening hours after diving operations or implemented during classroom sessions. Physics, physiology, formula work, equipment considerations, dive tables, dive computers, dive planning, common mixing, procedures and decompression.

Training limits
• Maximum Po2 1.4 in bottom mixes.
• No-decompression diving.
• No dives deeper than 150ft.
• Minimum surface interval 30 minutes, more if possible.

Equipment requirements
• A sufficient quantity of gas will be carried by the diver to allow completion of the dive time requirements incorporating the correct gas.
•  A primary gas supply system featuring an alternate second stage or alternate breathing source.
• A quick release weight system.
• Submersible pressure gauge.
• Buoyancy control device.
• Mask, fins and snorkel.
• Means of monitoring depth and bottom time.
• Submersible dive table must be used as back up to a dive computer or for control of the dive.
• Appropriate exposure suit for the environment in which the diver is being trained.
• Slate and pencil or wet notes
• Tanks must be labeled; the labels must clearly identify the MOD and oxygen content of the mixture.
• Cutting tool.
• Compass.
• Surface alert device.
• Equipment is to be configured in a neat low-drag manner.

Program limits
• No dives may be conducted to depths greater than the student´s previous qualification, or a maximum of 150fsw.
• Appropriate safety decompression stops must be performed.

Water Skills Development
• Properly analyze gas mixtures.
• Demonstrate adequate pre-dive planning.
• Limits based on personal gas consumption.
• Limits based on oxygen exposures at planned depth with actual mix.
• Limits based on nitrogen absorption at planned depth with actual mix.
• Properly execute the planned dive within all pre-determined limits.

Course Schedule
Approximately 4 – 6 hours of lecture including:
• Pressure review.
• Hypoxia, Oxygen toxicity.
• OUT´S and CNS clock.
• Nitrogen Narcosis.
• Nitrogen Absorption and Elimination.
• Carbon dioxide toxicity.
• Carbon monoxide toxicity.
• Formula work; best mix and maximum operating depth.
• Equipment considerations up to 40% and above 40%.
• Equivalent air depth with any table.
• Computer generated tables.
• Dive computers; mix adjustable, O2 integrated.
• Approximately 2-4 hours.
• Dive planning; operational planning, gas requirements, oxygen limitations, nitrogen limitations.
• Common mixing procedures; partial pressure blending, continuous blending, membrane separation system.
• Decompression, EAN usage as a decompression gas.
• Oxygen for decompression.
• Advantages/ Disadvantages of multiple gas switches.
• Accident analysis.
• Written exam has to be scored 80% or better. We recommend that the exam to be completed before the FIRST training.
• Gas analysis, proper tank labeling and dive planning for OW dive 1.
• Open water training dive 1.
• GAS: EAN 32.
• DEPTH: 70FT.
• Gas analysis, proper tank labeling and dive planning for OW dive 2.
• GAS: EAN 40.
• DEPTH: 80FT.
• Gas analysis, proper tank labeling and dive planning for OW dive 3.
• GAS: EAN 50.
• DEPTH: 60FT.
• Gas analysis, proper tank labeling and dive planning for OW dive 4.
• GAS: EAN 50.

Duration: 4 days Theory and practice.
Course Fee: $480.00 USD Tax Included Private instruction is available on request.
Certification: Yes.
Course Includes: Manual.

If this activity is of interest to you, please contact us and we will be delighted to answer any additional questions you may have and assist you in the best possible way we can.

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Akumal Riviera Maya, Quintana Roo; México
Phone (52) 984 875 9030/31/32/32 | Toll free in México 01 800 462 1212
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