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Old 14th June 2007, 17:05   #24 (permalink)
Mark Chase
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Re: deco plan when running semiclosed

Quote: (Originally Posted by Drmike) View Original Post
who was your instructor?

I would have assumed this was certainly part of any Rebreather class sylabuss???

You didnt practice running semniclosed on your course?
Instructor didnt get you to look at the effective PO2 drops?

Switch vr3 to OC mode and knock back the FO2 a tad. How much to knock it back depends largely on freq of venting you use and can be determined experimentally with a working ppo2 display


Deco is Mod2 or Mod3 not Mod1 and the question was on deco. We were taught Semiclosed on Mod1 but nothing on the resulting pp02 drop or its affect on deco. We did this in Mod 3. I had OC deco procedures already so didn't do Mod2 (hardly any one does it seems)

ATB

Mark Chase
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