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Advanced Nitrox

Advanced Nitrox

This course examines the use of EAN-21 up to 100 percent oxygen to obtain optimal mixtures at a depth of 40 meters / 130 feet.

TDI Decompression Procedures or Introduction to Technology may be combined with this course at the instructor’s discretion.

Price per person

$350
SKU: C020-ADV-NTX
Category: ,

BOOKING

Reservation confirmations require a 50% deposit. We accept bank transfer, credit card or PayPal. Full payment must be settled in Mexican pesos at the daily USD exchange rate or in cash prior to the start of your dive activity. Deposits for reservations are non-refundable, in certain circumstances, such as unforeseen medical issues or emergencies, the course or dive activities may be rescheduled. Any cancellation less than 24 hours prior to your first day of diving will be charged in full.

SCHEDULE

You can customize your course or dive trip according to your preferences and schedule throughout the year, we are open for training and diving seven days a week. The schedule can be adapted and subject to change due to weather conditions.

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Description

Topics

  • Physics.
  • Pressure review
  • Physiology.
    • Hypoxia.
    • Oxygen toxicity.
  • ​ Whole Body Oxygen Toxicity Units (OTU).
  • ​ Central Nervous System (CNS)
    • Nitrogen narcosis.
    • Nitrogen absorption and elimination
    • Carbon dioxide toxicity.
    • Carbon monoxide toxicity.
  • Working formula.
    • Calculations of the best mix
    • Calculations of the maximum operating depth (MOD) of the mixture
  • Equipment considerations
    • Less than 40 percent oxygen content.
    • More than 40% oxygen content.
  • Immersion tables.
    • Equivalent air depth with any table.
    • Computer-generated tables.
  • Diving computers.
    • Adjustable mix.
    • Oxygen (O₂ )integrated.
  • Dive planning.
    • Planning of the operation.
  • Gas requirements.
  • Oxygen limitations.
  • Nitrogen limitations.
  • Common mixing procedures (instructor will demonstrate a method)
    • Mixing at partial pressure.
    • Continuous mixing.
    • Membrane separation system.
  • Decompression.
    • Use of enriched air nitrox (EAN) as decompression gas, i.e. 50/50, 80/20, etc.
    • Oxygen (O₂) for decompression.
    • Advantages/disadvantages of multiple gas switches

Land drills:

  • Review of nitrox skills.
  • Demonstrate the correct use of the oxygen analyzer, including the optimal calibration procedure.
  • Demonstrate adequate pre-dive planning.
    • Limits based on personal gas consumption.
    • Limits based on oxygen exposure at depth.
    • Limits based on nitrogen uptake at the planned depth with the actual mix.
  • Calculate and record the CNS load for each dive, including cumulative exposure where applicable.
  • Demonstrate understanding of gas labeling in accordance with local practices and/or regulations.
  • Demonstrate adherence to conventions regarding the preparation of equipment for oxygen service (O₂).
  • Program the nitrox computer with the appropriate oxygen percentage if used.
  • Correctly execute the planned dive within all predetermined limits.

Pre-dive and in-water skills

  • Use START* before each dive.
  • Stress analysis and mitigation
  • Demonstrate buoyancy control; ability to remain in a fixed position in the water column without moving hands or feet.
  • Demonstrate good awareness of buddy and other team members through communications, proximity and team-oriented diving practices. Demonstrate ability to manage the free flow of the primary regulator in a controlled manner, turn off the cycle and switch to the backup regulator.
  • Perform the proper safety stop while maintaining neutral buoyancy.
  • Demonstrate the ability to share air with the partner as receiver and donor in a controlled manner while maintaining position in the water column.
  • Demonstrate correct body position; proper trim, such as horizontal / aerodynamic when moving forward.
  • Demonstrate proper stress analysis with self and dive buddy.