Technical Diving International   ( T D I )
Nitrox Diver

TDI Nitrox course is an entry level course for divers wishing to utilize enriched air nitrox as a
breathing gas. Little else has impacted recreational diving more than the introduction of
nitrox, allowing more time underwater. During this course, you will learn the benefits, hazards
and proper procedures for diving with EAN 22 to EAN 40 your TDI Instructor will also cover
Equipment considerations
•        Cylinder labeling
•        Analyzing of Nitrox

Advanced Nitrox Diver

The TDI Advanced Nitrox Course qualifies divers to use enriched air nitrox from EAN 21
through EAN 100 to a depth of 40 metres/130 feet during dives hat do not require staged
decompression. Often taught in conjunction with the TDI 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 times in shallower depths such
as scientific diver, and a must for SCR or CCR divers.   The course cover topics like
 Equipment requirements
•        Dive planning
•        Oxygen tracking
•        Blending methods

Decompression Procedures

As sport divers planned decompression is not something that we do or have been taught.
The TDI Decompression Procedures course prepares you for planned staged
decompression diving. With a maximum operating depth of 45m, this course is your first step
beyond the normal sport diving limits. Your TDI Instructor will provide you with valuable
information and skills, among the topics covered are
Kit set-up
•        Equipment requirements
•        Decompression techniques
•        Decompression breathing gases
•        Gas management
•        Contingency planning
The TDI Decompressions Procedures course combined with the TDI Advanced Nitrox course
form the foundation of all other technical courses.  After these two courses and some
additional experience, the stage has been set for you to move onto additional technical levels

Extended Range Diver

Certain areas of the world provide spectacular dives at depths deeper than 39m/130 feet but
you will not have access (or very limited access) to helium. The TDI Extended Range course
teaches you the proper techniques for utilizing compressed air as a breathing gas and with a
maximum depth of 55m you won’t have to miss those dives. The Extended Range course will
cover topics and skills such as
Equipment requirements and configuration
•        Decompression options
•        Use of surface marker buoys
•        Buddy rescue
•        Narcosis checks and management

Trimix Diver

As your motivation to explore progresses you will find that you may want to go deeper to dive
that wreck that is part of history or that cave system that you have read so much about.  One
of the major limiting factors of going deeper is narcosis; TDI’s Trimix Diver course shows how
to minimize the effects of narcosis by adding helium to offset the nitrogen in your breathing
gas. While taking the Trimix Diver course your TDI Instructor will teach you how to plan and
execute dives utilizing as little as 18 percent oxygen and diving to maximum depth of 60 m
with a blend of helium appropriate for the planned depth. The course covers topics and skills
Dive team planning
•        Gas matching
•        Cylinder labeling
•        Surface marker deployment
•        Equipment configuration
•        Thermal protection options

Advanced Trimix Diver

The TDI Advanced Trimix Diver course is the top level of training for open circuit divers
wishing to dive to depths as deep as 100 m utilizing hypoxic levels of oxygen (below 17
percent).  This course is perhaps one of the most informative and challenging and upon
completion you are among some of the most elite divers. Your TDI Instructor will teach you
Equipment management
•        Multiple stage cylinder labeling and placement
•        Complex decompression planning and contingency planning
•        Dive team awareness and communication
•        Gas monitoring and management
•        Use of travel gasses

Gas Blender

In the TDI Gas Blender Course, you will receive a foundation of skills and knowledge that is
needed to blend enriched air nitrox for recreational divers. After covering academic subjects
•        Responsibilities of the gas blender
•        Oxygen handling
•        Gas production equipment and oxygen analyzing

Advanced Gas Blender

Building upon the TDI Gas Blender Course, the next step is taken in the TDI Advanced Gas
Blender Course where you will develop and master the skills and knowledge needed to
produce custom mix gases for technical diving that include helium. After a review of academic
subjects such as
•        Formulas
•        Gas analysis
•        Blending equipment
•        Blending systems
•        Oxygen handling

Inspiration/Evolution Air Diluent CCR Diver
The TDI Inspiration and Evolution (certification depends on unit/electronics used) is your first
step into closed circuit rebreather diving and your first truly quiet diving experience. Using the
latest in technology CCR’s maximize your gas supply of Nitrox and provide the optimum
breathing gas for any depth by maintaining a constant partial pressure of oxygen (PPO2).
During the dives (minimum of six) your TDI Instructor will teach you all the nesscery skills to
conduct CCR dives to a maximum depth of 40 m, the skills include.
Setup and maintenance of the unit
Loop volume management
Calibration of electronics
Emergency procedures
Buoyancy control
CNS tracking
Ramon Perellos Street, St. Pauls Bay, SPB 3101 Malta
 Tel: 00356 21 574502   Fax: 00356 21 577480