Drager dolphin

Drager Dolphin Instructions for use

Setup and Checks

1. Ensure all parts are available and clean, parts required: • BCD Unit • Inhalation bag • Exhalation bag • Breathing Loop • Nitrox cylinder • Regulator • Demand/bypass valve • Associated hoses • Sodalime • Canister • Bailout system • Crystalube

2. Fill canister • 1/3 full, shake • 2/3 full, shake and insert ring • Fill to line or between o’rings, shake • Wipe any residual Sodalime from seals and fit lid • Shake and listen for “loose” Sodalime • Block off either connector and blow, it should be air-tight

3. Lightly lube exhaust valve exterior and fit exhalation bag to unit, ensuring drain valves are closed 4. Fit Inhalation bag to unit ensuring drain holes are closed 5. Fit scrubber canister to bags 6. Assemble and check breathing loop: • Ensure arrows on hoses follow direction – black to red. • Check the “anti-collapse” rings are in place (2 per hose) at the BCD end of the hose. • Open mouthpiece and block off “red” exhalation hose and attempt to blow down it, this should not be possible, inhalation should be smooth • Block off inhalation tube and attempt to inhale, this should not be possible, exhalation should be smooth. • Close mouthpiece.

7. Analyse Nitrox cylinder and mark accordingly 8. Detach the bypass valve from hoses and fit: • Thread the hoses through the slot in the left lower portion of the plastic housing of the unit • Re-fit hoses to required flow nozzle

9. Loosely fit Nitrox cylinder to unit and attach first stage 10. Attach correct flow meter to the bypass valve and turn on gas, it should be stable in the desired flow indicator rate for at least 20 seconds 11. Attach bypass valve to inhalation bag. 12. Secure Nitrox cylinder 13. Attach