Surface-mode:
Activation: automatically after a dive or when changing altitude.
After a dive has been completed, Aladin
®
Pro Ultra is in surface-mode. All data
belonging to the surface interval are calculated and displayed: simulation of
microbubble formation, actualization of oxygen toxicity and nitrogen saturati-
on of the tissues depending on the calculated skin temperature and the assu-
med work load at the surface, calculation of desaturation time, and no fly
interval. Desaturation time is determined either by oxygen- or nitrogen satura-
tion, depending on the gas requiring the longer desaturation. Oxygen satur-
ation CNS O
2
% is displayed an adjusted until the value becomes 0%.
In order to save energy, Aladin
®
Pro Ultra falls into the “surface-sleep” after 3
minutes. The functions of surface-mode are then carried out in the backgro-
und. The atmospheric pressure is measured in surface-sleep once every minu-
te. If the atmospheric pressure decreases, for example in case of change of alti-
tude, Aladin
®
Pro Ultra switches from sleep-mode or from surface-sleep into
surface-mode automatically and displays the adaptation time. The adaptation
time is the time after which all body tissues have adapted to the ambient pres-
sure (= desaturation time).
Logbook-mode:
Activation: manually by contacts
Data of 19 past dives can be called up in the logbook-mode. It shows maxi-
mum depth, dive time, preceding interval*, altitude sections and, where
appropriate, alarms. A dive is entered in the logbook if it has lasted more than
2 minutes. When the dive was a repetitive dive then it also shows the interval
which has passed since the last dive or a preceding change of altitude. The last
37 dives and the last 200 minutes of dive-profiles can be downloaded out into
a MemoMouse and later from there into a personal computer (Windows
®
).
* Preceding interval is only shown when the computer calculated that there
was a residual nitrogen uptake at the beginning of the logged dive.
28
2 Dive Computer
II Uwatec
®
Aladin
®
Pro Ultra
h
DO NOT FLY
S
L
O
W
LOGBOOK
CNS O
2
LIMIT
depth
dive time
max. depth
deco info
O
2
% MIX
depth
dive time
max. depth
deco info
h
DO NOT FLY
S
L
O
W
LOGBOOK
CNS O
2
LIMIT
depth
dive time
max. depth
deco info
O
2
% MIX
