8
NOTE
- The backlight consumes battery energy:
the longer the backlight stays on, the
less your battery will last.
- If the low battery warning is activated,
the backlight will be disabled.
In surface mode, the backlight can be activated
by pressing and holding the lower button while
the time of day is displayed. The backlight will
turn off after 6 seconds without any button
operation, which allows you to turn on the
light from the time of day mode then enter into
menus, change settings, go into the logbook etc.
2.4.1.2. P FCt (P FACTOR)
Smart allows you to set an additional personal
safety factor for those circumstances in which
you want to be especially cautious, such
as after a long period of inactivity or when
planning a strenuous dive. In this menu you
can choose between the standard algorithm
(P0), a more conservative version (P2) or
an intermediate one (P1). On the pre-dive,
post-dive, logbook and planner displays, P1
is displayed with p+, P2 with p++ and P0 is
indicated by the absence of symbols.
NOTE
The choice of p factor will be reflected in
the dive planner.
2.4.1.3. ALt (ALTITUDE)
Atmospheric pressure is a function of altitude
and of weather conditions. This is an important
aspect to consider for diving, because the
atmospheric pressure surrounding you has an
influence on uptake and subsequent release
of nitrogen. Above a certain altitude, the
decompression algorithm has to change in
order to account for the effect of the change
in atmospheric pressure. When diving in a
mountain lake, find out what the altitude is and
choose the altitude range in Smart within the
four available options:
- A0: from sea level to approximately
700m/2300ft;
- A1: from approximately 700m/2300ft to
approximately 1500m/4900ft ;
- A2: from approximately 1500m/4900ft to
approximately 2400m/7900ft;
- A3: from approximately 2400m/7900ft to
approximately 3700m/12100ft;
- We do not recommend diving at altitudes
above 3700m / 12100ft. If you do, set Smart
to bottom timer and find appropriate
altitude dive tables.
On the pre-dive, post-dive, logbook and
planner displays, A1 through A3 are indicated
with the mountain symbol filled with 1, 2 or 3
segments while A0 is indicated by the absence
of symbols.
WARNING
Diving in mountain lakes without first
setting Smart to the proper altitude setting
can cause severe injury or death.
2.4.1.4. WAtR (WATER)
You can set the computer for FRESH water or
SALt water calibration, depending on where
you intend to dive. Setting the wrong water
type entails an error in depth measurement
of approx 3% (i.e. at a depth of 30m/100ft, a
computer set to salt water will show 29m/97ft
in fresh water whereas a computer set to fresh
water will show 31m/103ft in salt water). Note
that this does not affect the proper functioning
of the computer, since the computer performs
all of the calculations based purely on
pressure measurements.
2.4.1.5. UN:tS (UNITS)
You can choose between metric (depth in
meters, temperature in °C) and imperial units.
(depth in feet, temperature in °F).
2.4.1.6. FASt (FAST ASCENT)
A fast (uncontrolled) ascent is defined as one in
which a speed of 12 m/min / 40ft/min or higher
was maintained over more than two thirds of
the way up. This applies to dives deeper than
12m/40ft only. In such an event, due to the
potential of harmful bubble formation, Smart
locks the computer for 24hours in order to
discourage you from diving again. In this menu,
you have the option to disable the locking up of
the computer in the event of an uncontrolled
ascent.
WARNING
- An uncontrolled ascent increases your
risk of decompression sickness (DCS)
- This feature is intended for very
experienced divers only, such as dive
instructors, who take full responsibility
for the consequences of turning off this
function.
2.4.1.7. ALRM (ALARMS)
In this menu you can disable audible alarms.
WARNING
Disabling audible alarms can lead you into
potentially dangerous situation and could
result in serious injury or death.
2.4.1.8. ErASE (ERASE DESATURATION)
Smart allows you to reset the desaturation
in the computer. Any tissue saturation
information from a recent dive will be reset to
zero and the computer treats the next dive as
a non-repetitive dive. This is useful when the
computer is loaned to another diver who has
not dived in the last 24hours.
WARNING
Diving after having reset the desaturation
is extremely dangerous and is very likely to
cause serious injury or death. Do not reset
the desaturation unless you have a valid
reason to do so.
In order to prevent accidental desaturation
reset, you must enter the security code once
you decide to proceed with the reset. The
security code is 1234.
After entering the security code you will get a
confirmation of the successful completion of
the operation.
2.4.1.9. dEEP
This menu allows you to turn off the
calculation and display of the deep stop, which
leads to a clearer display of decompression
information in case you are not interested in
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