Category

Rebreather Diving

Pre-Breathing and CO2

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Dr. Simon Mitchell of New Zealand, recently conducted a study that will no doubt rock diver’s understanding of their pre-breathe sequence. The study has not yet been published, but Mitchell felt it was important enough to present a preview at Eurotek last weekend in Birmingham, England. He also posted to CCR Explorers today. He says: I presented two studies at Eurotek. The first aimed to evaluate the efficacy of the 5 minute prebreathe in evaluation of CO2 scrubber function prior to diving a rebreather. This has been a controversial subject and we sought to gather some definitive data. Since this…

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AP Diving Offers Exciting New Features

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AP Diving is showing off some new bling at the NEC Diving Show in Birmingham. They’ve aggressively jumped into the market with a bright new heads up display at a very reasonable price. The unit has been fully vetted with CE Approval setting a high bar for other manufacturers to follow. The unit can be retrofitted to existing rebreathers as an upgrade or ordered on new ones.  The following features are posted in their press release today: Vivid OLED colour display – with excellent readability even in very poor viz Conditional colouring indicates status changes – Green = good, Yellow = info…

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Dive Safety – An Interview of Jill Heinerth

By | All Posts, Cave Diving, Rebreather Diving, Sidemount Diving, Underwater Photo and Video, Women Underwater | No Comments

ALERT DIVER, the prestigious and excellent publication of Divers Alert Network recently reached out to me with some questions about how I view dive safety. Establishing a culture of dive safety is of great importance to dive leaders and is central to Divers Alert Network’s mission. They’ll be sharing these thoughts and those of other experts in coming issues of their magazine. ALERT DIVER: Recreational diving culture; what does it mean to you? JILL HEINERTH: Sport diving is a community made up of many different subcultures. These small groups of divers are knitted together by their shop, club, charter operator…

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Algorithm Comparisons

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Matching Your Backup Computer to Your Rebreather If you are like me, you might have a backup CCR computer that is loaded with a different algorithm that your rebreather. Owning more than one rebreather, I want to know that the algorithm is a reasonably close match for each unit. Ryan Crawford from the UK has made some comparison profiles on different algorithms to help CCR divers see how different computer algorithms match up on different rebreathers. The comparisons are made to a depth of 45m so that air is used as the diluent. This keeps the comparisons within the scope of recreational rebreather…

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Suunto Gives Direction to Team Sedna

By | All Posts, Cave Diving, Rebreather Diving, Sedna Expedition, Sidemount Diving, Underwater Photo and Video, Women Underwater | No Comments

The Ambit 2S Sport Watch Suunto has provided Team Sedna with Ambit 2S GPS fitness watches to track our journey through the Arctic. These advanced devices are used by athletes around the world to track their fitness, journeys and adventures. This particular version of the Ambit is specially designed to fit women’s narrower wrists yet provides full features of the watch. The Ambit has become an open source craze among computer savvy athletes. The data can be repurpose using community shared apps. Clever programmers have created apps such as a cupcake counter, letting a runner know how many cupcakes they…

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Kevin Gurr May Save Your Life

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White Paper on Oxygen Sensors May Save Your Life This article, painstakingly written by Kevin Gurr and aggressively peer reviewed by colleagues, may be the most important thing you will read about your rebreather. Your oxygen cells are the key to your life support and yet many people abuse them and use them beyond their working life. Kev’s article spells out everything you need to know about cells and why we are all so adamant about proactively changing them out. Read this and read it again. The information may save your life. This is a very long article, but well…

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