Reflect the gas density display in the user manual

Signed-off-by: Robert C. Helling <helling@atdotde.de>

1 files changed, 5 insertions, 1 deletions

diff --git a/Documentation/user-manual.txt b/Documentation/user-manual.txt
index b376657d3..e16e6f14d 100644
--- a/Documentation/user-manual.txt
+++ b/Documentation/user-manual.txt
@@ -2204,7 +2204,7 @@ 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, equivalent air depth (EAD), equivalent narcotic depth
-(END), equivalent air density depth (EADD), decompression requirements at that
+(END), equivalent air density depth (EADD, also as gas density in g/l), decompression requirements at that
 instant in time (Deco), time to surface (TTS), the calculated ceiling, as well
 as of the statistics in the Information Box, shown as four
 buttons on the left of the profile panel. These are:
@@ -2378,6 +2378,10 @@ indicate
 times of increased normalized air consumption while dark green reflects times
 when the diver was using less gas than average.
 
+When in planner mode, the SAC is set to be constant during the bottom part 
+of the dive as well during decompression. Therefore, when planning a dive,
+the color is a representation of the breathing gas density.
+
 [icon="images/icons/Heartbutton.png"]
 [NOTE]
 Clicking on the heart rate button allows display of heart rate information