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Trimix & Extended Range |
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Use and benefits of
Helium mixes |
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Description |
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The TDI Trimix Course
provides the training required to competently and safely utilize
breathing gases containing helium for dives that require staged
decompression, utilizing Nitrox and / or oxygen mixtures during
decompression to a maximum depth of sixty (60) msw / two hundred (200)
fsw. The objective of this course is to train divers in the benefits,
hazards and proper procedures of utilizing custom oxygen / helium /
nitrogen mixtures as breathing gases. Gas mixes are not to have any less
than eighteen (18%) percent O2. |
| Pre-requisites |
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The student must be a
minimum of 18 years of age
The student must hold a minimum certification of TDI Advanced Nitrox and
TDI Decompression Procedures or equivalent.
Proof of 100 open water dives outside of training. |
| Required Equipment |
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Bottom Mix Cylinders:
- Cylinder volume appropriate to complete all planned decompression on
bottom mix
- Dual outlet valve (H-valve), double manifold or independent doubles.
Decompression Mix Cylinders:
- Cylinder volume should contain a minimum of 1.5 times the gas required
for the planned decompression.
Suit Inflation Cylinder (required for dry suit divers only).
Regulators:
- Primary and primary redundant required on all bottom mix cylinders.
- Submersible pressure gauges are required on all primary/bottom mix
cylinders.
- A contingency use long hose second stage should be designated and
appropriately rigged to facilitate air sharing at depth if necessary.
- It is strongly recommended that three (3) required regulators be all
DIN or all yoke.
Buoyancy Compensator(s) adequate for equipment configuration
Redundant Depth and Timing Devices (Air decompression computers allowed
for use as depth and timing devices, provided they have a gauge mode)
Redundant Light System if required by site.
Ascent Reel with Lift Bag/Surface Marker Buoy:
- Adequate for maximum planned depth.
- Minimum of twenty three (23) kg / fifty (50) lb. lift bag
Exposure suit adequate for the open water environment.
Line Cutting Device.
Underwater Slate
NOTE: because of the diver specific nature of the required equipment for
this course prospective students should contact “The” Dive Shop and
arrange to meet with the instructor and a member of the sales team |
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Required Text |
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TDI Extended
Range/Entry Level Trimix Manual
Note: the instructor may require additional texts at his or her
discretion |
| Duration |
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Minimum 8 hours of
classroom work
Minimum 4 decompression dives with a minimum bottom time of 100 minutes
NOTE: because travel will be required for this course, it is important
that the student plan sufficient time to get to and from the dive sites |
| Location |
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“The” Dive Shop
classroom
Multiple open water sites including the St Lawrence Seaway, North
Florida, and Pensacola. Instructors will work with students to find a
location with appropriate depth. |
| Fees |
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$1100 Tuition
$30 Certification and Registration
$32 Text
NOTE: travel is required for this course, travel costs are not included,
your instructor will work with you to determine locations and costs |
| Course Notes |
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Because of the
demanding nature of technical diving it is recommended that students
contact their instructor ahead of time to discuss their goals and
reasons for taking the course. Ask the staff at “The” Dive Shop to put
you in touch with an instructor. |
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Schedule |
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Classroom |
Open Water |
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TBD Or: Call "The" Dive Shop and we will work out
a schedule that is convenient for you. |
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