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.
Hammerhead Electronics Package
The O2ptima rebreather is powered by the Hammerhead closed circuit, mixed gas controller
and decompression computer from Juergensen Marine. The electronics CCR control system utilizes two separate electronics handsets with Delrin housings
that are pressure tested to 600 feet. (Optionally a single handset model is available which requires the addition of a third party dive computer capable of monitoring an external PO2, such as the Nitek Q, Shearwater Predator, or NHeO3.) The handset displays do not share any
electronics and are independently powered with each handset using it's own battery. The only shared
components are the oxygen sensors which are accessed individually by the handsets.
The handset controls use piezoelectric switches that are hermetically sealed,
unaffected by depth and contain no moving parts or magnets. Highlights of
Hammerhead Electronics features include:
New Features with REV "D" Electronics
Integrated GPS capability
Integrated Electronic Compass
Bluetooth Connectivity
Larger LED screen with red or white background
Integrated Dive History Logging
Improved information content display
Improved Heads Up Display (HUD) LED Lights
Deco status indications in HUD
Firmware updates downloadable from Dive Rite website
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.
O2ptima Revision "D" Electronics
Lamar Hires, CEO of Dive Rite, explains the new Juergensen Marine Hammerhead Rev D electronics update for the O2ptima Closed Circuit Rebreather.
Click on the play arrow to view the video. A high speed internet connection is recommended for best viewing.
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.
Physical Characteristics
The O2ptima light weight aluminum frame holds all the components securely in
place, has a carry handle and stands upright for storage, as well as being streamlined to fit body contours,
particularly on smaller individuals. The exceptionally durable fabric cover is a combination of Rhinotec and
Cordura with reflective stripes to improve visibility in low light or silty conditions. The O2ptima cover
allows for easy access to both the scrubber canister and gas supply cylinders. Quick release clips allow divers
to open the top only or bottom only rather than having to remove the entire cover. Weight pockets, one on each
side of the canister-portion of the cover, can handle 5-lbs of weight. The O2ptima is an adjustable 22 to 25
inches high, 13 inches wide, and 8 inches deep and the weight (without cylinders and absorbent) is less than 28
pounds. Although airline luggage restrictions vary widely, the O2ptima qualifies as "carry-on" with many
airlines. A fully configured O2ptima, utilizing TransPac Harness
and CCR Wing, with fully charged AL13 aluminum cylinders and the absorbent cartridge has a pre-dive weight
of 51 pounds; compared to a single aluminum 80 open circuit rig of 42 pounds or a double aluminum 80 open-circuit
rig of 87 pounds.
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.
Related Products
Pricing for Dive Rite O2ptima Rebreather
Due to the unique nature of the rebreather product, this item is NON-RETURNABLE.
Your complete satisfaction is our goal, so please consider carefully before purchase.
Rebreather prices do include FREE continental U.S. domestic shipping.
Rebreather prices do NOT include international shipping.
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