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Equipment

Equipment. Introduction. Equipment is Life Support underwater We will cover Life-support equipment underwater Equipment Kit Configuration. Gas Source . Cylinders Dual Source – Manifold twin-set Decompression Cylinders Separate Regulators Pressure Gauge. Gas Source - cylinders. Type

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Equipment

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  1. Equipment

  2. Introduction Equipment is Life Support underwater • We will cover • Life-support equipment underwater • Equipment • Kit Configuration

  3. Gas Source • Cylinders • Dual Source – Manifold twin-set • Decompression Cylinders • Separate Regulators • Pressure Gauge

  4. Gas Source - cylinders • Type • Steel – Back mount • Aluminium – Side slungs • Valves • Yoke Style • DIN • 5 Thread (232 Bar) • 7 Thread (300 Bar) & 7 Thread Reg • Working pressure • Cylinder Guards

  5. Gas Source - Cylinders • Isolation valve - remote isolation valve • Stage cylinders and attachment – Piston clips • Pressure gauge • CLEARLY marked with gas content • Oxygen service + testing • Suitable for purpose Always analyse your gas

  6. Twin - Sets • Independent Twin-Sets • Separate Regulators • Switch every 30 – 50 Bar • Not recommended • Disadvantages • Regulator Failure • Buddy • Failure Points

  7. Twin - Sets • Manifold Twin-Sets • Type required for Extended Range diving • Heavy – Do not lift by manifold • Manifold directly connected to cylinders • Primary regulator – Right post • Single pressure gauge – Left post

  8. Twin - Sets • Shut-down drill • Isolate • Switch to secondary, close right post • Open right post, switch back to primary • Shut down left post • Open left post • Open isolator (1/2 turn) • Check both regs

  9. Shut-downs • Stretch arms forward, reach back • Body horizontal, slight head down • Remote operating device • Problems • Tight dry suit / undersuit • Poor set-up • Poor harness / back-plate • Tight or poor valve handles

  10. Twin - Sets • Shut-down procedure • Preserve gas • Time to think • Safe ascent • Advantage of Manifold • Isolate regulator • Practice • Long second stage hose (1.5 – 2m)

  11. Gas Source – Side Mounts • 2 side-mounts • RIGHT RICH – LEFT LEAN • Steel or aluminium • Piston clips face outwards • Regulator configuration • Mouthguard on Rich Mix • Label cylinder and regulator

  12. Gas Source - Regulators • Type • DIN vs. yoke • Primary second stage • Back up second stage • Hoses • Identifiable at depth for self AND buddy • Accessible and clutter-free • In oxygen service

  13. Gauges & Timers • Wrist mounted • Back up depth gauge • Back up timer • Dive tables • Slate to include ALL plans calculated • Computers

  14. Buoyancy Control Device • Foundation • Jacket or wings • Single/twin bladder • Lift – 25kgs min • Extra equipment

  15. Suits • Risk of hypothermia • Undersuit • Seals • Toilet facility • Inflation • No semi-dry or wet suits

  16. Basic Equipment • Weight System • belt or harness • blocks or shot • weight adjustment • pouches • Mask/Fins/No Snorkel

  17. Basic Equipment • Reels • one 100m line • one 50m line • Be familiar and competent • practice deployment + dual deployment • SMB • one RED • one yellow • types available

  18. Equipment • Jon line • Cutting tools • Light Systems • Strobes

  19. Extra Equipment • EPIRB • Helmet • Lifting Bag • Diver Propulsion Vehicle • In water spares

  20. Kit Configuration • Identify primary triangle • Identify redundant items • Balance weight • Streamline

  21. Kit Configuration • Consider • Cylinder options • BCD fitting • Hoses • Regulator • Avoid hanging equipment • Cutting tools STREAMLINE

  22. Kit Configuration • Good Kit configuration will have: • Comfort and balance • Reliability and touch identification • Streamlined with minimum drag • Rescue capability • Self sufficiency & Redundancy • All cylinders correctly labelled If you don’t need it – don’t bring it

  23. Summary • Looked at : • Equipment • Kit Configuration If you don’t need it – don’t bring it STREAMLINE

  24. Questions?

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