
O2ptima Manual –User Guide – Rev 1.2 Page 14 of 26
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2.5. DSV (Diver Supply Valve)
The DSV does not typically need any assembly or disassembly. The DSV does contain
two mushroom valves to provide flow direction. Both mushroom valves are removable for
maintenance and cleaning (see the Maintenance section).
2.6. DIVA
The DIVA (Display Integrated Vibration Alarm) is designed as a H.U.D. – Heads Up
Display. This unit assists the diver in monitoring PPO2 levels with color coded LED’s and
a vibrating alarm. When installing the DIVA on the mouthpiece, ensure that a diver has a
clear view with the DSV in his mouth and his mask on.
The connector end screws on to the head. The connector is keyed in order to ensure proper
orientation of the pins.
2.7. ADV (Auto-Diluent Valve)
The ADV (Auto-Diluent Valve) is located on the divers left shoulder. The ADV provides
diluent into the breathing loop upon descent as the air compresses. This eliminates the
need to manually add diluent to the breathing loop.
WARNING! ALWAYS HAVE AN INLINE SHUT OFF VALVE WHEN USING AN
ADV.
The ADV should only be disassembled for routine maintenance. Please see maintenance
section of the manual.
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