User manual

27
English
ALADIN SQUARE USER MANUAL
1.4.7 Setting the water density
When apnea diving the exact depth is very
important value. For the most accurate
reading you must select the correct density
of the water. Density depends on water
temperature and salinity (salt content).
Some approximated densities at 20˚C/68˚F
water.
• Average Ocean water has approximately
1.025 kg/liter.
• Mediterranean Sea has approximately
1.027 kg/liter.
• Red Sea has approximately 1.029 kg/liter.
• Black Sea has approximately 1.012 kg/liter.
• Baltic Sea has approximately 1.004 kg/liter.
• Fresh water (lake/quarry) has density
approximately 1.000 kg/liter.
By pressing SEL at this menu the water
density value starts blinking. By pressing
right or left you may change the value
from 1.000 to 1.050 in steps of 0.001. By
pressing SEL the settings are confi rmed.
1.5 Set Up/Down Time
Counter for the dive
There are many situations during a dive
where a simple stop timer which is
independent from dive time is practical;
for example timed tasks at dive courses or
special missions etc.
Square has a stop timer integrated on
the SCUBA mode, which has to be
configured before the dive in this menu.
By pressing SEL at this menu the function
starts blinking. By pressing right or left you
may select between up, dn(down) or off.
By pressing SEL the counter time starts
blinking and you may set it from 5 second
up to 99 minutes and 55 seconds in 5
second steps by pressing right or left.
By pressing SEL the settings are confi rmed.
1.6 Algorithm selection
You may select your Square operation
mode between SCUBA, Gauge and Apnea
modes.
When Square has not been submerged for
a while the display looks as follows:
Since the Gauge and Apnea modes are
not tracking the tissue saturation, there
is 48h locking interval after the last dive
in gauge or apnea mode before change
to a SCUBA mode is possible.
After a SCUBA dive the limitation to change
the mode is valid until desaturation is
complete.
Square shown below has been diven
in apnea mode and the NO CHANGE
limitation is still on for another 47 hours.