mifr/subsurface
1
0
Fork 0
mirror of https://github.com/subsurface/subsurface.git synced 2025-02-19 22:16:15 +00:00
Code Issues Projects Releases Packages Wiki Activity

EAD/END explanation in user manual.

Browse source 
E is for "equivalent".

Signed-off-by: Robert C. Helling <helling@atdotde.de>
Signed-off-by: Dirk Hohndel <dirk@hohndel.org>
This commit is contained in:
Robert C. Helling 2014-03-31 20:46:56 +02:00 • committed by Dirk Hohndel
parent 61d60f6b1a
commit 02d5d436d2
2 changed files with 29 additions and 9 deletions
Download patch file Download diff file Expand all files Collapse all files

18
Documentation/user-manual.txt
View file

@ -1401,7 +1401,7 @@ In this mode, the Information Box gives extensive statistics about depth, gas
and ceiling characteristics of the particular dive. These include: Time period
into the dive (indicated by a @), depth, cylinder pressure (P), temperature,
ascent/descent rate, surface air consumption (SAC), oxygen partial pressure,
maximum operating depth, effective air depth (EAD), effective narcotic depth
maximum operating depth, equivalent air depth (EAD), equivalent narcotic depth
(END), equivalent air density depth (EADD), decompression requirements at that
instant in time (Deco), time to surface (TTS), the calculated ceiling, as well
as the calculated ceiling for several Bühlmann tissue compartments.
@ -1439,9 +1439,19 @@ can be compared. The units for SAC is litres/min or cub ft/min.
[icon="images/icons/EAD.jpg"]
[NOTE]
Clicking this button displays the *Effective Air Depth (EAD)* as well as the *Effective
Narcotic Depth (END)* for the dive. These are numbers of importance to divers who use Nitrox or
Trimix as breathing gases. Their values are dependent on the composition of the breathing gas.
Clicking this button displays the *Equivalent Air Depth (EAD)* for
nitrox dives as well as the *Equivalent
Narcotic Depth (END)* for trimix dives. These are numbers of
importance to divers who use breathing gases other than air. Their
values are dependent on the composition of the breathing gas. The EAD
is the depth of a hypothetical air dive that has the same partial
pressure of nitrogen as the current depth of the nitrox dive at
hand. A nitrox dive leads to the same decompression obligation as an
air dive to the depth equalling the EAD. The END is the depth of a
hypothetical air dive that has the same sum of partial pressures of
the narcotic gases nitrogen and oxygen as the current trimix dive. A
trimix diver can expect the same narcotic effect as a diver breathing
air diving at a depth equalling the END.
Figure (*B*) above shows an information box with a nearly complete set of data.