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user manual: pSCR diving is similar to OC, not CCR

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See also commit acb38c9e00. pSCR is with respect to cylinder planning very
similar to OC planning. Obviously, the SAC is much (max. 8x for counterlung
ration 1:10) lower, but multiple gasses are common (in all but recreational
pSCR diving).

Changed the wording to reflect this.

Signed-off-by: Jan Mulder <jlmulder@xs4all.nl>
This commit is contained in:
Jan Mulder 2017-03-22 09:12:20 +01:00 • committed by Dirk Hohndel
parent 97f7de6165
commit ede5e70c54
1 changed files with 5 additions and 3 deletions
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Documentation/user-manual.txt
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@ -3691,9 +3691,11 @@ from the main menu, where the gas consumption calculation takes into account the
ratio (default 1:10) as well as the metabolic rate. The calculation also takes the oxygen drop
accross the mouthpiece of the rebreather into account. If the
pO~2~ drops below what is considered safe, a warning appears in the _Dive plan
details_. A typical pSCR configuration is with a single cylinder and one or more bail-out
cylinders. Therefore the setup of the _Available gases_ and the _Dive planner points_ tables
are very similar to that of a CCR dive plan, described below. However, no oxygen setpoints
details_. A typical pSCR cylinder setup is very similar to an open circuit dive;
one or more drive cilinders, possibly with different bottom and decompression
gasses, including gas switches during the dive like in open circuit diving.
Therefore, the setup of the _Available gases_ and the _Dive planner points_ tables
are very similar to that of a open circuit dive plan, described above. However, no oxygen setpoints
are specified for pSCR dives. Below is a dive plan for a pSCR dive. The dive is comparable
to that of the CCR dive below, but note the longer ascent duration due to the lower oxygen
in the loop due to the oxygen drop across the mouthpiece of the pSCR equipment.