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@SOUTH WEST TECHNICAL DIVING
COURSES AND AGENCIES
TECHNICAL SAFEAIR DIVER (TSD LEVEL 3)
This is the first ANDI training program to cover the specific information and skills necessary to perform stage-stop required, “technical” decompression diving while minimizing the associated risk factors. Also covered: how to use various SafeAir mixtures to increase decompression efficiency and safety, gas volume management, oxygen dosage tracking and contingency planning/procedures.
This course serves as the building block for other ANDI Technical and Exploration programs. The operational depth limit for this program is extended to 40m. The program included 8-10 hours of lecture and 4+ open water training dives. Minimun bottom time is 180 minutes.
|Standards||Technical SafeAir® Diver TSD L3||Technical Tri-Mix Diver TTM L3||Extended Range Diver ERD L4||Intermediate Tri-Mix Diver ITM L4||Tri-Mix Diver TMD L5|
|Maximum Course Depth *1||130 fsw/40 m||165 fsw/50 m||165 fsw/50 m||200 fsw/60 m||328 fsw/100 m|
|Minimum Course Depth *2||100 fsw/30 m||100 fsw/30 m||130 fsw/40 m||165 fsw/50 m||197 fsw/60 m|
|Min. Dive Depth for Certification *3||72 fsw/22 m||100 fsw/30 m||100 fsw/30 m||130 fsw/40 m||165 fsw/50 m|
|Max Deco *4||30 min||45 min||As Required||As Required||As Required|
|Max. PO2 for Deco||1.6 PO2||1.6 PO2||1.6 PO2||1.6 PO2||1.6 PO2|
|Gas Limits – Oxygen||1.45 PO2||1.45 PO2||1.45 PO2||1.45 PO2||1.45 PO2|
|Gas Limits – Nitrogen||3.6 PN2||3.6 PN2||3.6 PN2||3.6 PN2||3.6 PN2|
|Gas Limits – Helium||None||16% or more||None||As Required||As Required|
|Theory Time||14 – 16 hours||4 – 6 hours*5||6 – 8 hours||8 hours||8 hours|
|# of Dives||4*7||4*7||4*7||4*7||4*7|
|Min. Bottom Time||80 min||100 min||120 min||80 min||80 min|
|Min. Run-Time incl Safety Stops||120 min||180 min||240 min||240 min||240 min|
|Equipment configuration limitation||3 cylinders 3
|3 cylinders 3
|As required||As required||As required|
|Prerequisites *6||CSU +50 dives||TSD||TSD +100 dives||ERD +200 dives||ERD +200 dives|
*2 – At least one training dive must meet this minimum.
*3 – Other than the first evaluation dive no shallower dive may be credited toward certification.
*4 – One deco cylinder must cover all stops and bail out.
*5 – Includes all TMD info from L5 course.
*6 – Other prerequisites may apply.
*7 – Team members must use the same gas mixtures.
Note 1: divers may only move 2 levels during one course series. In order to move levels the candidate must have 25 dives at the ERD level.
Note 2: Extended Range Diver L4 program is an option for ideal conditions when helium is not available, otherwise Intermediate Tri-Mix L4 is the best option.
Note 3: Extended Range Diver L4 program encompassing PN2 greater than 3.6 Bar but less than 4.5 Bar requires a Standards Waiver request to IHQ or RHQ. The waiver is applicable in clear, warm waters only.
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