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Date: Tue, 26 Mar 1996 13:41:49 -1000 (HST)
From: Richard Pyle <deepreef@bi*.bi*.Ha*.Or*>
To: Alex Varouxis <alex1@ac*.di*.ne*>
Cc: techdiver@terra.net
Subject: Re: Rebreather Question


> How many PO2 sensors are used in a rebreather and how are they read?

Most fully closed systems have 3, and most allow you to read them via two 
independent means - a primary display and a backup display. I've heard 
that the Prisim-II might have a fourth as an option in the counterlung, 
which seems like a good idea to me (if it works reliably). Maybe Mike 
Cochran can elaborate.  Some 'breathers only show you a pooled average of 
the three sensors, while others give you both the average and the 
independent readings.

Does that answer your question?

Aloha,
Rich

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