User manual

9
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ALADIN SQUARE USER MANUAL
1.0.8 Checking the Altitude
At the altitude menu the current altitude is
calculated from the barometric pressure
and shown at the bottom row left. The
current altitude class is shown at middle row
right and this is used as ambient pressure for
diving algorithm calculations. At the bottom
row right the current temperature is shown.

NOTE: barometric pressure is a variable
changing with weather and atmospheric
pressure at that elevation. Dive algorithm
uses Altitude Classes which are directly
derived from the barometric pressure.
Altitude is counted from the current
barometric pressure and it is therefore a
relative value.
The altitude can be adjusted when current
elevation is known by pressing the SEL. The
altitude value will start blinking. By pressing
right or left the value can be adjusted in
10m/50feet steps. By pressing SEL you
can confi rm the altitude value. Adjusting the
altitude elevation has no effect on altitude
class. More about diving in altitudes is
explained in chapter Altitude diving.

NOTE: Different combinations m&˚C,
Ft&˚C, m&˚F or Ft&˚F can be selected
from the dive mode menu: Units.
1.0.9 Planning a dive
Planner
Surface
Interval
Depth/
time
ESC
ESC
SEL
SEL
SEL
You can plan your next dive based on your
body’s nitrogen saturation. The planner is
also using following information:
1. Selected oxygen concentration and
active tanks
2. Selected water type
3. Selected MB level
4. Water temperature of the most recent dive
5. Altitude range
6. Status of tissue saturation at the time the
planner is started
7. A normal workload of the diver and
observance of the prescribed ascent rates.
By pressing SEL at the planner menu you
will get into the planner directly or to the
surface interval setting (repetitive dive).

NOTE: When Square is in Gauge or
Apnea modes the Planner is disabled
and Planner OFF is shown in this menu.