diff options
Diffstat (limited to 'Documentation/user-manual_fr.txt')
| -rw-r--r-- | Documentation/user-manual_fr.txt | 73 |
1 files changed, 1 insertions, 72 deletions
diff --git a/Documentation/user-manual_fr.txt b/Documentation/user-manual_fr.txt index 6fbcdabc3..9674adc72 100644 --- a/Documentation/user-manual_fr.txt +++ b/Documentation/user-manual_fr.txt @@ -1666,40 +1666,7 @@ needs of the dive. For this reason multicylinder dives are often used by technical divers who dive deep or long. As far as _Subsurface_ is concerned, there are only two types of information that need to be provided: -- *Describe the cylinders used during the dive* This is performed in the *Equipment tab* of - the *Info* panel, as xref:cylinder_definitions[described above]. Enter the cylinders one by one, - specifying the characteristics of the cylinder and the gas composition within each cylinder. - -- *Record the times at which switches from one cylinder to another was done:* This is information - provided by some dive computers (provided the diver indicated these changes to the dive computer - by pressing specific buttons). If the dive computer does not provide the information, the diver has to - record these changes using a different method, e.g. writing it on a slate. - -- *Record the cylinder changes on the dive profile*: If the latter option - was followed, the diver needs to indicate the gas change event by right-clicking at the appropriate point - in time on the *Dive Profile* panel and indicating the cylinder to which the change was made. After - right-clicking, follow the context menu to "Add gas change" and select the appropriate cylinder from - those defined during the first step, above (see image below). If the - *tank bar* button in the toolbar has been activated, the cylinder switches are also indicated in the - tank bar. - -Having performed these tasks, _Subsurface_ indicates the appropriate use of -cylinders in the dive profile. Below is a multi-cylinder dive, starting off -with EAN28, then changing cylinders to EAN50 after 26 minutes to perform -decompression. - -image::images/multicylinder_dive.jpg["FIGURE: Multicylinder profile", align="center"] - -==== Sidemount dives - -Sidemount diving is just another form of multicylinder diving, often with -both or all cylinders having the same gas mixture. Although it is a popular -configuration for cave divers, sidemount diving can be performed by -recreational divers who have completed the appropriate training. Sidemount -dive logging involves, exactly as with multicylinder dives, above, three -steps: - -- *During the dive, record cylinder switch events*. Since sidemount diving normally involves two +- *During the dive, recording cylinder switch events*. Since sidemount diving normally involves two cylinders with air or with the same gas mixture, _Subsurface_ distinguishes among these different cylinders. In contrast, most dive computers that allow gas switching only distinguish among different _gases_ used, not among different _cylinders_ used. This means that when sidemount dives are downloaded @@ -1726,44 +1693,6 @@ image::images/sidemount1.jpg["FIGURE: Sidemount profile", align="center"] This section gives an example of the versatility of _Subsurface_ as a dive logging tool. - -[[S_sSCR_dives]] -==== Semi-closed circuit rebreather (SCR) dives - -[icon="images/halcyon_RB80.jpg"] -[NOTE] -Passive semi-closed rebreathers (pSCR) comprise a technical advance in -diving equipment that recirculates the breathing gas that a diver breathes, -while removing carbon dioxide from the exhaled gas. While a small amount -(typically a tenth) of the exhaled breathing gas is released into the water, -a small amount of fresh gas is released from the back gas cylinder -(typically containing nitrox). A diver, using a single cylinder of -breathing gas can therefore dive for much longer periods than using a -recreational open-circuit configuration. With pSCR equipment, a very small -amount of breathing gas is released every time the breather inhales. With -active SCR (aSCR) equipment, in contrast, a small amount of breathing gas is -released continuously from the back cylinder. - -To log pSCR dives, no special procedures are required, just the normal steps -outlined above: - -- Select pSCR in the _Dive Mode_ dropdown list on the *Info* panel. - -- pSCR diving often involves gas changes, requiring an additional cylinder. - Define all the appropriate cylinders as described above and indicate the - cylinder/gas changes as described above in the section on - xref:S_MulticylinderDives[multicylinder dives]. - -If a pSCR _Dive Mode_ has been selected, the dive ceiling for pSCR dives is -adjusted for the oxygen drop across the mouthpiece which often requires -longer decompression periods. Below is a dive profile of a pSCR dive using -EAN36 on the back cylinder and oxygen for decompression. Note that this dive -lasted over two hours. - -image::images/pSCR_profile.jpg["FIGURE: pSCR profile", align="center"] - - - [[S_CCR_dives]] ==== Closed circuit rebreather (CCR) dives |