O2ptima Product Features

Breathing Loop
The scrubber canister is positioned horizontally behind the divers head. This position offers many benefits: decreased breathing loop length, lower breathing resistance, and improved buoyancy trim. The axial flow scrubber canister contains a water trap, provides simple and quick replacement of the CO2 absorbent and allows easy access to the three oxygen sensors. The dual over-the-shoulder counterlungs are independently shoulder/front-mounted and position adjustable to provide the most effective breathing configuration for your body. Each lung is fitted with a swivel valve for manual addition of your gases and the valve accepts standard BC-type quick release hose fittings. The exhalation tee contains an additional water trap and the counterlung includes an OPV with spin-valve, providing for the easy the removal of any trapped water, even while underwater. Also included as standard is an Auto Diluent Valve (ADV) which automatically adds diluent into the breathing loop during descent as the gas in the loop compresses, and includes an inline shutoff valve. The low-maintenance mouthpiece, called the Dive/Surface Valve (DSV), is capable of one-handed open/close operation.

New Features with REV "D" Electronics

• Primary Handset -- The Primary Handset, normally worn on the wrist, is responsible for maintaining the chosen PO2 set-point by firing the oxygen injection solenoid using voting logic with the three oxygen sensors. The Revision "D" version primary is now also the controller for the improved Heads-Up-Display. The Primary display shows the measured PO2 for the three oxygen sensors, dive time, actual and max depth, and decompression information. Decompression information includes required stop obligations and time-to-surface calculation.
• Secondary Handset -- The completely redundant, independently powered and electrically isolated Secondary Handset utilizing the Revision "C" electronics can also be worn on the wrist, clipped off, or carried in a special waist-mounted handset pocket. The secondary display shows the three individual oxygen sensor values plus the average PO2. The Secondary will also provide dive time, actual and max depth, and temperature information. As an option the secondary can be enabled with a PIN code to also provide full decompression information.
• Heads-Up-Display (HUD) -- The HUD offers two methods to monitor your loop PO2 via the heads-up display using color LED smounted on the DSV. The first method is the user set-point mode, which displays different colors depending on variance from set-point. The second method is the PO2 mode, where the actual loop PO2 for each of three sensors is displayed via a flashing code. The HUD can also provide decompression status information.
• Display Integrated Vibrating Alarm (DIVA) -- When activated by the computer, the DIVA transmits a distinct vibration, light and sound to the diver as an alert to an emergency situation.
• Bühlmann ZH-L16 Deco Algorithm with Gradient Factors -- Bühlmann-based algorithms are among the most widely used decompression models, and the ZH-L16 algorithm is programmed into many of today's dive computers. The improvement of Gradient Factors allows the diver unique and individual control of their dive computer decompression calculations.
• Full Nitrox/Trimix/Heliox Support -- The dive computer supports any breathing mixture of Nitrogen, Oxygen, and Helium. As many as ten different gas mixes can be pre-defined by the diver and selected at any time during a dive. The O2ptima includes full Trimix support as a standard feature.

Cylinder Options
The O2ptima design has an adjustable foot aluminum plate and cylinder mounting system that allows the diver to choose between a large variety of gas supply cylinder sizes (2L, 3L, or 4L). Divers of varying statures will appreciate this flexibility as they can customize their O2ptima to fit their body type as well as adjust the weight of the unit by selecting cylinders that are lighter or heavier. Note the cylinders and valves are priced separately and not included in the base price of the O2ptima.

Harness and Air cell Options
The O2ptima rebreather provides standard 11-inch centers mounting which accepts any of Dive Rite's buoyancy control systems. The diver may choose from an enormous variety of BC configurations including the ultra comfortable TransPac or TransPlate systems. The diver may even choose traditional webbing harness systems, incorporating aluminum or stainless steel backplates. Choose from a variety of Dive Rite's air cells, depending upon your buoyancy requirements but Dive Rite recommends their new CCR wing. New for 2011, your choice of the TransPac or TransPlate harness and the CCR air cell are now included in the base price of the O2ptima.

Training
The O2ptima rebreather requires formal training for safe use. The O2ptima pricing does not include training, and training is solely the responsibility of the purchaser. Training is available worldwide from Dive Rite's growing list O2ptima Instructors. The training time is five to seven days consisting of classroom lecture and lab, plus a minimum of 500 minutes in water training. Dive Gear Express also offers O2ptima instruction at our facility in SE Florida and has performed a large number of O2ptima certifications.