KEEP IT SIMPLE!
The vision became a mission and finally a reality. This is evident at first glance: compact, streamlined, easy to use and control in any situation. The SF2 ECCR is unique in many ways. The development took several years and countless test dives. In the end, we created a rebreather that speaks for itself! Of course, the SF2 ECCR can be used for recreational dives, but technical
diving was clearly the focus of its development. Technical diving focuses on two ideas. redundancy and control. For every conceivable problem, the SF2 ECCR offers at least one reaction option. The diver controls the rebreather, not the other way around. The SF2 ECCR consciously dispenses technical equipment that is not necessary. Less is more, especially in technical diving. The basic components with all their smallest details are made of the highest quality material.
Shearwater controller, Fischer connectors of the newest
generation (casted and waterproof), real carbon tubes, coax cable with golden SMB plug, CNC precision parts.
Made in Germany.
The SF2 is Made in Germany. The parts used are also Made in Germany, aside from Shearwater. This way, we guarantee highest quality and crafting standards - for every single rebreather.
The design of the SF2 is clear and simple. The carbon tubes offer maximum load capacity with extremely low weight (Stripped it‘s only 25 lbs and therefore extremely travel-friendly). In the water, it is excellently balanced and guarantees an optimal water position. Counter or trim weights are definitely not necessary.
EASY TO USE
The SF2 ECCR can be prepared for a dive within minutes with no tools needed! The carbon tubes can be easily disassembled and therefore all necessary areas are accessible to the diver.
The same applies to care after diving. Both take only a few minutes each.
The electronic chamber is the heart of the SF2. Here are the O2 sensors as well as the oxygen magnet and the battery compartment.
Below the battery compartment is the control board, which is completely encapsulated. The O2 sensors are located in a separate chamber to protect them from moisture. High-quality cables and SMB angle plugs connect the board to the sensors.
COUNTERLUNG IN BELLOWS FORM
A unique system combined with a special position is a combination that offers only advantages. The SF2 ECCR has a bellows system, which is protected by the lower carbon tube. The counterlung is therefore inside
and cannot be damaged and it does not matter if the diver dips through the tightest restriction in a cave or is inside a wreck.
Despite the unusual position, the SF2 ECCR offers excellent breathing comfort.
The WOB tests of the CE certification are extremely strict: The SF2 ECCR has passed all tests, in all positions excellently. The tests were also carried out in Germany at DEKRA. Again, no cheap "compromises" were made. The internal counterlung is one reason for the streamlined structure of the SF2 ECCR. The lower the water resistance, the more comfortable diving is – a factor that any diver
appreciates, not just technical divers.
The canister has a capacity of 2.2 kg and an axial design. As with the sensors, positioning also plays a decisive role in the canister. There is a distance of about 5 mm between the canister and the outer carbon
tube so there is no direct contact with cold water. Temperature is another decisive factor for an efficient use of lime. The gas flow is added in as support. warm exhalation air flows around the sorb cannister and is thus heated. Small details make a big difference!
MANUAL ADD & OFFBOARD GAS KITS
The possibility of manual control is one of the most important redundancy strategies in rebreather diving. With the SF2 ECCR, the manual controls have been deliberately separated into oxygen and
diluent. Intuitive operation in stressful situations is a high priority and confusion virtually ruled out.
External gas can also be fed in via the Manual Adds – another important redundancy factor. With the external gas connected, the complete functionality of the SF2 ECCR is retained. Both the solenoid valve and
the ADV are still in "automatic mode."
Since the SF2 ECCR has two manual add-ons, they even offer redundancy against each other in extreme cases.
SAFETY AND COMFORT!
In the Ready to Dive variant, the SF2 ECCR is supplied with four shut- off valves (including overpressure valves) and three Quick Disconnects.
The latter are a comfortable addition that everyone who has uses them will no longer want to miss. Hose connections can be easily loosened, however, when in operation, they are secured making unintentional
loosening impossible. The shut-offs offer the advantage that each gas path can be locked separately without restricting additional functions.
For example: the solenoid valve fails and oxygen flows uncontrollably into the system. With the help of the shut-off, the connection to the solenoid valve is blocked in seconds and the diver can continue to operate the SF2 ECCR manually. He does not have to leave the device.
DIAMETER: 180 MM | 7.09" ;
HEIGHT: 600 MM | 23.62" ;
LUNG VOLUME: 4,3 LITER | 9.48 LBS ;
GAS SUPPLY DILUENT (ADV): 2ND STAGE BLACK DEVIL ;
GAS SUPPLY O2: JAKSA SOLENOID VALVE ;
POWER SUPPLY OF MAGNETIC VALVE: 9 VOLT; APPROX. 40 HOURS ;
POWER SUPPLY CONTROLLER: 1 X AA ;
GAS OUTPUT SCUBAFORCE EXHAUST VALVE
OXYGEN SENSORS: 3 ;
SEALING CASE: O-RING RADIAL SEALED ;
SIDEMOUNT READY TO DIVE: 14 KG | 30.9 LBS ;
BACKMOUNT READY TO DIVE: 35 KG | 77.2 LBS ;
SCRUBBER FILLING: 2,5 KG | 5.5 LBS ;
CONTROLLER: SHEARWATER PETREL 2 DIVE CAN.