Certification
Certification
TDI SF2 eCCR 40m Air Diluent Decompression Procedures adds staged decompression diving on the rEvo SF2 unit after your thirty-metre air diluent foundation. You plan mandatory deco stops, manage bailout gas and hold trim while switching diluent and monitoring cells on dives to forty metres.
This is a unit-specific deco module, not a generic CCR decompression ticket. TDI expects SF2 30m Air Diluent or equivalent CCR air diluent certification on the same hardware before you start. Arrive with logged SF2 hours, not just the card from a rushed holiday week.
Deco on a rebreather feels quieter than open circuit until something goes wrong, then your hands are full. Run schedules, bailout routing and cell discipline until they are boring, which is the point.
TDI SF2 40m Air Diluent Decompression Procedures is assessed through practical decompression dives and skills on the unit. Your instructor signs off when performance requirements are met.
Quick answers about this qualification. For anything else, use live chat or browse bookable activities below.
Find activitiesIt is the TDI staged decompression qualification on the rEvo SF2 unit using air diluent to forty metres. You build on SF2 30m Air Diluent with mandatory deco stop planning and execution.
Certification is unit-specific. It does not authorise deco diving on other CCR models without crossover training.
TDI SF2 30m Air Diluent or equivalent CCR air diluent on the same unit, age eighteen plus, and recent logged SF2 time your instructor accepts.
Leave a comment when you book with your thirty-metre card date and CCR hours. Centres refuse deco modules when foundation cards are stale or on the wrong unit.
Thirty-metre air diluent stays no-decompression. This module adds staged decompression profiles, bailout planning and deeper dives to forty metres on the SF2.
Do not skip the thirty-metre foundation unless you hold an accepted equivalent on the SF2 already.
Knowledge development and planning exercises are part of the course. Assessment is primarily practical decompression dives and skills on the unit.
Your instructor reviews run schedules and bailout plans before each dive rather than relying on a single classroom test.
Centres teach appropriate bailout and deco gases within TDI limits for air diluent CCR deco to forty metres. Exact mixes depend on site and instructor policy.
Confirm cylinder sizes, stage rigging and gas analysis procedures when you book.
Typically several days with multiple deco dives. Student pace and weather may extend the schedule beyond the minimum.
CCR deco courses are not weekend shortcuts unless you arrive with sharp SF2 habits already.
SF2 45m Helitrox Decompression Procedures adds helium blends within TDI helitrox limits, then SF2 60m Mixed Gas for deeper mixed-gas CCR.
Log shallow deco dives between steps. Depth without hours breeds expensive mistakes.
Maybe, with TDI crossover assessment on the SF2 unit. Another agency CCR card does not automatically substitute for SF2-specific training.
Leave a comment when you book with your current unit and hours. Instructors decide crossover eligibility case by case.
Physically and mentally heavier than no-deco CCR. Long stops, cold water and bailout planning simultaneously test attention.
Arrive rested, current on SF2 checks and honest about your recent diving. Rust shows at the first deco stop.
Exposure protection for long stops, backup mask, suitable fins and any personal CCR components your centre approves. Stage cylinders usually supplied or rented locally.
Confirm stage rigging compatibility with the SF2 harness before travel.
adventuro lists TDI centres with SF2 inventory offering air diluent decompression training. Compare depth access, bailout fees and minimum logged CCR hours required.
Book deco training only when your SF2 foundation feels automatic, not when the card is fresh and the hours are thin.
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