9
2.4. WARNINGS
2.4.1. MAX DEPTH
Genius allows you to set an alarm at a depth
independent of the MOD. The default value is
OFF. Using the
and buttons you can set
it between 10m / 30ft and up to just shy of the
MOD, in 1m / 5ft increments. Upon reaching the
depth defined in this alarm, the message MAX
DEPTH REACHED appears on the screen and
stays there until you ascend above the set limit.
2.4.2. DIVE TIME
Genius allows you to set a time alarm,
triggering also a warning at half of the set time
limit. The default value is OFF. Using the
and
buttons, you can set the value between
20 and 90 minutes in 2-minute increments.
Upon reaching half of the set limit, the
message TURN AROUND appears and stays
on the display until you hit any button to
acknowledge it. Upon reaching the set time
limit, the message TIME LIMIT appears and
stays on the display until you hit any button to
acknowledge it.
2.4.3. NO STOP
When this is set to ON, a warning will alert you
when the NO STOP time reaches 2 minutes.
2.4.4. ENTERING DECO
When this is set to ON, a warning will alert you
when a mandatory decompression stop has
been calculated by Genius.
2.4.5. RGT
In multigas dives, when this is set to ON, a
warning will alert you when the RGT reaches 3
minutes. For single gas dives this is an ALARM
and is always ON.
2.5. MULTIGAS
2.5.1. PREDICTIVE
When set to ON, Genius will consider all
gases in the decompression calculation,
with switches carried out at the MOD of each
gas. When set to OFF, the decompression
calculation will consider the currently
breathed gas only. See Section 11 for more
information about the PREDICTIVE feature.
The default value is ON.
2.5.2. ALLOW SWITCH BELOW MOD
When set to ON, Genius will allow a switch to a
gas at a depth deeper than the MOD of the gas
(resulting in an immediate MOD alarm).
The default value is ON.
2.6. FUTURE DECO
In this menu you can define the parameters of
the future deco prediction and of the runaway
deco alarm. Refer to section 9.3 for more
information.
2.7. WATER
You can set the computer to fresh water, salt
water or EN13319 calibration, depending
on where you intend to dive. Setting the
wrong water type entails an error in depth
measurement of maximum 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. EN13319 corresponds to a
water density of 1.0197kg/l and it is used in
European Norm 13319.
2.8. NIGHT MODE
In this menu you can select the NIGHT MODE
as the default display. You can also switch
between the two display modes during a dive
using the Underwater Menu described in
section 9.9.
2.9. DEEP STOP
Genius calculates a deep stop for air and
nitrox dives only. The depth is defined as that
at which the 5th compartment (27-minute half
time) switches from ongassing to offgassing.
Stopping at this depth during an ascent
allows the first four tissues to offgas at a
relatively high ambient pressure (theoretically
preventing microbubble formation) without
causing excessive nitrogen uptake in the other
tissues. The deep stop, when calculated, is
shown in the top right corner of the display,
next to the current depth. The deep stop is
optional, not carrying it out does not introduce
any penalties and its duration is NOT included
in the total ascent time.
This menu allows you turn off the calculation
and display of the deep stop. The default
setting is OFF.
2.10. DECO STOP
This menu allows you to choose the depth of
the shallowest stop among 3m/10ft, 4.5m/15ft
and 6m/20ft. Decompression times increase
when the shallowest stop is deeper.
2.11. SECONDS
If set to ON, this menu allows you to add
seconds to the dive time. Due to space
limitations, this implies a size reduction of the
information to the right of the dive time.
2.12. LINKED MAP
In this menu, you can select a map which you
can later on call up during the dive.
2.13. ERASE DESATURATION
Genius 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 24 hours.
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.
Once inside the menu, you will see a graphic
representation of the loading in all tissues
of the decompression calculation. 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.
2.14. ALL SILENT MODE
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.
2.15. ASCENT VIOLATION
If the ascent rate exceeds 120% of the allowed
value over a depth change of more than
20m/66ft, due to the potential of harmful
bubble formation, Genius locks the computer
for 24 hours in order to prevent 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.
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