User`s guide

7
Fig. 12
The display bar shows you:
• the temperature (in °C or in °F);
• the duration of the dive so far (dive time) in
digits.
In this mode, the keys operate as follows:
<+> button:
• Press this button to display the maximum
depth reached. Press it again to remove the
maximum depth.
• Hold down the button for 2 seconds to
activate the display backlight.
<-> button:
• inactive in this mode.
<ENTER> button:
• temporarily displays (for 10 seconds) the
dive parameter settings, just as they appear
in Predive Mode.
<ESC> button:
• When the <ESC> button is pressed during
the dive, Nemo Wide will temporarily display
the estimated deep stop required. The data
displayed during the ascent may vary as a
result of the diver’s behavior. Divers should
check this data during their ascent for more
precise information on the estimated stop
(Fig. 13).
Fig. 13
DIVE  AIR: “DECOMPRESSION
STOP” DIVE
If the diver does not ascend when the residual
time has expired, Nemo Wide switches to
“decompression stop” mode, indicated by the
appearance of the “deco” message and by an
audible alarm.
The following data are displayed in this mode
(Fig. 14):
Fig. 14
• “deco” icon”;
• current depth (in “m” or “ft”);
• depth of deepest decompression stop
(in “m” or “ft”);
• duration of the deepest decompression stop;
• icons for the altitude program and personal
correction factor (if enabled).
In this mode, the keys operate as follows:
<+> button:
• Press this button to display the maximum
depth reached. Press it again to remove the
maximum depth.
• Hold down the button for 2 seconds to
activate the display backlight.
<-> button:
by pressing this button you can choose to view
on the display bar:
• the ascent time;
• the temperature (in °C or in °F).
or
• the ascent time;
• the duration of the dive so far (dive time) in
digits
<ENTER> button:
• temporarily displays (for 10 seconds) the
dive parameter settings, just as they appear
in Predive Mode.
<ESC> button:
• When the <ESC> button is pressed during
the dive, Nemo Wide will temporarily display
the estimated deep stop required. The data
displayed during the ascent may vary as a
result of the diver’s behavior. Divers should
check this data during the ascent for more
precise information on the estimated stop.
NOTE
When the no-decompression time
remaining is one minute, an audible alarm
is sounded to indicate that the diver is about
to exceed the no-decompression limits.
TIME TO SURFACE ASC TIME
The ascent time is given by the sum of:
• duration of the various decompression
stops;
• Time required to ascend at an average
speed of 10 m/min (32 ft/min).
• Any deep stops.
DECOMPRESSION STOPS
Nemo Wide also checks that the
decompression stops are observed; two icons
graphically indicate how the diver must behave
(Fig. 15).
Fig. 15
• 2 triangles: correct decompression stop
depth;
• upward triangle: diver below decompression
stop depth, ascend!
• downward triangle: diver has ascended
beyond decompression stop depth, descend!
 WARNING
When the omitted deco stop alarms are
triggered, desaturation of the simulated
tissue compartments is halted and
resumes only when the diver returns to
the correct stop depth.
If the decompression stop depth is exceeded by
more than 30 cm (11 inches), the “downward
triangle” icon will flash; if it exceeds 1m (3 ft)
it keeps flashing and an audible alarm will
sound. These warnings remain active until the
diver returns to the correct depth.
 WARNING
Never ascend above the correct
decompression stop depth.
NOTE
If the deco-stop overshoot exceeds
one meter and lasts more than
three minutes, the computer
switches to “Omitted Stop” mode
and the corresponding icon
appears.
In this case, if the diver attempts
a repetitive dive after surfacing,
Nemo Wide will only function as a
depth gauge and timer (BT mode),
and it will display the errors of the
preceding dive.
DEEP STOPS
To minimize the likelihood of critical bubble
seed formation, in the case of decompression
dives or dives close to the no-deco limit, Nemo
Wide prompts for a series of one-minute deep
stops at different depths depending on the dive
profile. Thus, when the conditions exist during
the dive, Nemo Wide will display a “deep stop”
icon (Fig. 16).
Fig. 16
This display is helpful in planning the deep
stop during the ascent. When the diver
approaches a deep stop, Nemo Wide sounds
an audible alarm and the “DEEP STOP”
message appears on the display bar.
At the depth indicated a countdown will appear
indicating the time left in the DEEP STOP
(Fig. 17). There can be more than one deep
stop during a dive. This depends on the dive
profile and on the type of decompression.