4.9 Nitrogen loading bar graph
The nitrogen loading bar gives a graphical representation of how close to decompression you are. As you
absorb nitrogen during the dive, more and more segments of the bar will light up. Depending on your
depth, the segments can light up more or less rapidly.
** Depending on your profile, the no-stop time may drop below 3 minutes before the upper 5 segments
are lit. In this case, only those segments that are lit will flash.
If you have entered decompression, the 6
th
segment will turn off as soon as you complete your last decom-
pression obligation to indicate that you are no longer in decompression.
4.10 Decompression information
NO STOP and the no-stop time (minutes) are displayed if no decompression stops are necessary.
• No-stop display <99:> means remaining time of 99 minutes or
more.
• No-stop time is calculated on line and influenced by the current
water temperature
If no-stop time drops below 3 minutes, an audible
attention signal is activated, the no-stop value and
the nitrogen loading bar begin to flash.
If no-stop time is less than 1 minute, the no-stop
display shows the flashing value "0".
In order to prevent a decompression dive, ascend
slowly until the no-stop time is 5 minutes or more.
Dives that require decompression stops are not
recommended.
24
4 Functions during the dive
III UWATEC
®
Aladin
®
dive computers
DEPTH
DEPTH
NO ST
NO STOP
OP
DIVE
DIVE TIME
TIME
CNS O
2
%
No-stop time
Nitrogen loading bar
No-stop time less
than 1 minute
WARNING
WARNING
CNS O
2
%
DEPTH
DEPTH
NO ST
NO STOP
OP
DIVE
DIVE TIME
TIME
4 sec
Decompression values
On entering the decompression phase, "NO STOP" disappears, the
sym-
bol appears and an attention beep goes off. The nitrogen loading bar stops flas-
hing and the 6th segment lights up (red area). The deepest decompression
stage in metres (feet) is displayed and the decompression stop duration of the
displayed stage appears in minutes. The display <7: 3m (10ft)> means that a
decompression stop of 7 minutes at a depth of 3m (10ft) has to be made.
When a decompression stop has been finished, the next higher decompression
stop is displayed. When all decompression stops have been made, the
symbol extinguishes, "NO STOP" and no-stop time reappear.
Deco stop depths deeper than 27m (90 ft) are displayed as <– – : – – >
STOP
STOP
DECO
DECO
STOP
STOP
DECO
DECO
CNS O
2
%
DEPTH
DEPTH
DIVE
DIVE TIME
TIME
STOP
STOP
DECO
DECO
Decompression
depth
Decompression
stop duration
Decompression obligation
1-3 segments
(green area):
you are safely wit-
hin the no-stop
range
4-5 segments (yellow area):
you are approaching decom-
pression. When the no-stop
time drops below 3 minutes
the 5 segments will start
flashing.**
6 segments (red area): you now
have mandatory decompression
obligation(s) which you must
observe before reaching the
surface.
