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ardhill · 1st July 2007, 13:43

Hi

I know that some people dive their MCCR's below the manufacturers depth limit. I was wondering how they do it?

I assume the limit for most of the MCCR's is 80m and my limited understanding is that this is due to the IP of the reg. As the IP is fixed on a Rebreather and doesn't change with the ambient pressure like an OC reg does, how do you get your RB to give you an accurate mix below the depth where the reg is no longer able to supply gas? Do you simply run the mix totally manually i.e. press the green 'keep me alive' button more often to maintain the desired PPO2?

I am still trying to understand the workings of the units, so forgive me if my presumptions above are incorrect.

Thanks
.

1st July 2007, 13:43	#1 (permalink)
ardhill New Member Current Rebreather/s: Not Bought Yet Other Rebreather/s: Not Bought Yet Join Date: Feb 2007 Location: Belfast, Northern Ireland Posts: 46	Diving MCCR beyond depth limits? Hi I know that some people dive their MCCR's below the manufacturers depth limit. I was wondering how they do it? I assume the limit for most of the MCCR's is 80m and my limited understanding is that this is due to the IP of the reg. As the IP is fixed on a Rebreather and doesn't change with the ambient pressure like an OC reg does, how do you get your RB to give you an accurate mix below the depth where the reg is no longer able to supply gas? Do you simply run the mix totally manually i.e. press the green 'keep me alive' button more often to maintain the desired PPO2? I am still trying to understand the workings of the units, so forgive me if my presumptions above are incorrect. Thanks . __________________ Paul (Note: I currently don't dive a Rebreather, but dive OC. So if anything I say about breathers sounds suspect - it probably is)
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