ALADIN ALADIN AIR Z NITROX, Руководство по эксплуатации, Страница: 2 / 6

2
Uwatec
®
Aladin
®
Air Z Nitrox
Supplement to Aladin Air Z manual
The Aladin ® Air Z Nitrox diving computer has been designed for diving on Nitrox (oxygen/ nitrogen mix with a
max. of 50% O
2
) and air (21% O
2
). The diving computer displays the level of oxygen toxicity (CNS O
2
%) and
gives out warnings on oxygen toxicity and on high oxygen partial pressure (ppO
2
). Without exchanging the
diving computer a diver can dive on different mixtures (Nitrox and compressed air) during the day. Using the
dive planner a diver can determine the best mix for a certain maximum depth and/ or find out the maximum
operation depth (MOD) for a given mix.
Dive Planner
Press 2x and 1x to activate your dive planner.
The oxygen toxicity is not taken into account by calculations of the dive planner.
Planning a No-Stop Dive
The dive planner will only display depths which lie within the limits of the maximum allowable par-
tial pressure of oxygen (ppO
2
max).
Planning a Nitrox-dive
The dive planner of the Aladin ® Air Z Nitrox always plans dives based on the selected oxygen percentage.
It can be used to:
• Calculate the maximum depth (MOD, Max. Operation Depth) to be reached with a given mixture.
• Calculate the necessary mixture (Best Mix) for a dive with a given depth.
Calculating the Max. Operation Depth (MOD)
Set the desired percentage of oxygen and activate the dive planner as described on page 66/67 of the Air Z
manual.
Observe the depth indications and memorize the greatest depth displayed. This is your maximum depth for
a dive with the set mixture and the set maximum partial pressure of oxygen.
Calculating of the mixture for a given depth (Best Mix)
Activate the dive planner (Air Z page 66/67) and observe the maximum depth displayed. If the desired depth
is not reached or exceeded, leave the dive planner, alter the percentage of oxygen and return to the scrolling
no-stop times. Repeat this procedure until the desired depth appears as the maximum depth. The ideal per-
centage of oxygen for this depth will now be displayed in the ready-mode.
Nitrox Information
The selected percentage of oxygen (O
2
% Mix) is displayed on the surface and during
the first five minutes of a dive, until a first maximum depth is reached, which will then be
displayed.
After the dive the display of oxygen percentage and maximum depth will alternate for a
five-minute-waiting-period (Wait-Mode).
The danger of oxygen toxicity symptoms increases as the shown oxygen toxicity percen-
tage (CNS O
2
% LIMIT) approaches 100%.
The figures for the set maximum allowable partial pressure of oxygen (ppO
2
max)
will not be shown. However, the Aladin ® Air Z Nitrox warns the diver as soon as he reaches
the depth in which the maximum allowable partial pressure of oxygen will be reached.
max. depth
O
2 2
% MIX % MIX
max. depth max. de
O
2
% MIX
O
2 2
% MIX % MIX
%
O
2
% MIX
CNS O
2
LIMIT
Setting the gas mixture (O
2
% Mix)
Bridge and then to switch from ready- or surface-mode to the O
2
%-mix-mode (Add).
Bridge and to select a level of O
2
between 21% and 50% (2% steps).
Bridge to confirm your entry. If you do not confirm your entry the O
2
%-mix-mode will turn
off automatically after 3 minutes and your entry will not be accepted!
depth
max. depth
O
2 2
% MIX % MIX
®
Z Nitrox
S
L
depth
4 sec