Find out why divers from all over the world are learning to dive in silence. The AP rebreather, distributed by Silent Diving Systems in North America, has revolutionized recreational and technical diving over the last 8 years. This unit offers significant advantages over open circuit scuba for all types of diving. The system works on electronic controlled 02 injections which means that as 02 becomes metabolized by our bodies; the system automatically replaces the used 02 with fresh gas. Our metabolism does not change with depth, so the system is as gas efficient at 33ft/10m as it is at 330ft100m! The other major difference of the closed circuit system is that it maintains a constant P02 during the dive. This means that instead of planning a mix for a given depth, the rebreather constantly changes the mix to suit the depth you are at.
Advantages of Closed Circuit Rebreathers
- Extended duration diving with greatly reduced gas consumption.
- Warmer, quieter diving with easier breathing.
- No bubbles – see how close the wildlife comes – great for underwater photographers and filmmakers.
- Breathing ‘ideal’ O2% at all times gives greatly reduced decompression times and increased No-Stop times.
- For Tek divers they can be used with Trimix or Heliox (huge savings in gas costs!)
Differences between SCR and CCR
The first difference is the way oxygen is added to the breathing loop. Whereas semi-closed rebreathers inject oxygen along with other gases, closed-circuit rebreathers generally consist of at least two independent gas supplies. One of these contains pure oxygen, which is injected into the breathing loop to make up for the oxygen that is consumed by the diver. The other gas supply is called the diluent. The diluent usually consists of either compressed air or a special gas mixture such as Nitrox, Heliox, Neox or Trimix. The diluent gas mixture usually contains enough oxygen so that it can be breathed directly from the cylinder via an open-circuit system at the operating depth of the dive. This supply is used to maintain system volume during excursions to depths where the volume of gas in the breathing loop is compressed.
In some rebreathers the diluent is also used for the emergency open-circuit bailout gas supply in the event of a total system failure of the rebreather apparatus.
The second major difference between closed-circuit rebreathers and semi-closed rebreathers is how the two systems maintain the concentration of oxygen in the breathing loop. Whereas most semi-closed rebreathers maintain a (more or less) constant fraction of oxygen (FO2) throughout the course of the dive, closed-circuit rebreathers maintain a relatively constant partial pressure of oxygen (PO2) in the breathing loop. In most cases, closed-circuit rebreathers also incorporate an electronic O2 control system, which automatically adds oxygen when the PO2 drops below a certain level (this level is called the PO2 set-point).
Description of the Inspiration/Evolution Closed Circuit Rebreather Course
Using a rebreather requires a great deal of discipline and training. Thus rebreather divers must have a higher dedication to equipment maintenance and operation than is generally required for open-circuit divers. Furthermore, rebreathers are generally more complex devices than open-circuit scuba gear, which also accounts for why they require more training time.
Advanced Nitrox Diver (can be taken at time of course). Be a minimum of 18 years old. A minimum of 60 Open Water dives. A good attitude accepting a “back to basics” approach.
Differences between SCR and CCR
A total of 500mins of underwater time will be required to complete this course.
ICE DIVING EXPERTS
Drawing upon decades of experience on and beneath the Arctic ice, Arctic Kingdom is able to provide training that replicates the Arctic diving experience in a region much closer to home.The Arctic is home to a variety of conditions, from drifting pack ice to massive icebergs and huge pressure cracks. In Ontario’s 1000 Islands, we have chosen a location with ice conditions similar to the Arctic, offering a wide range of training scenarios. Using our state-of-the-art airboat, you will be able to experience ice that has never been accessed before, safely and reliably.
ENROLL IN THIS COURSE
Contact us at (888) 737-6818 or at email@example.com