User`s guide

Nemo Excel dive computer
16
SET FREE  AL DEPTH
This alarms signals the depth intervals
If enabled, Nemo Excel issues an audible
signal each time the current depth is a
whole number multiple of the programmed
increment.
E.g. If the depth interval is 5m (16 ft.), Nemo Excel will
sound at 5 m, 10 m, 15 m, 20 m, ..., 15 m, 10 m and 5 m.
NOTE
Carefully read the Log Book chapter of this
manual.

WARNING
We advise that when diving you always put
Nemo Excel into Predive mode.
This ensures correct functioning even if
the wet contacts are dirty with salt, oil,
sunscreen, etc...
Early in your dive, always check that the
dive computer is switched on.
PRE DIVE  FREE DIVING
This operating mode remains active until the
diver goes below 1.2 meter (4 feet).
The following details are displayed (fig. 45):
Fig. 45
• type of dive (Free);
• units of measurement (m-°C or ft-°F);
• type of water (Salt, Fresh);
• alarm icons (if enabled);
• battery power level.
The battery power level is shown graphically
along the perimeter of the dial.
If the indication drops below the “6 o’clock”
position it is advisable to replace the battery
immediately before diving in particularly cold
water, or if a lenghty series of dives is planned.
Do not dive if the residual battery charge
is less than 25% (graphically equivalent to
one quarter of the dial). If the battery power
indicator drops below the “2 o’clock” mark
on the dial, the “low battery” icon will appear.
In this case, the backlight function will be
disabled. Under these conditions the battery
has a residual life of approximately two more
standard dives, therefore it is advisable to
replace it immediately.
When the power indicator drops below the “1
o’clock” mark Nemo Excel disables the dive
computer, and only the time function remains
active. Immediately replace the battery to
resume using it as a dive computer.
DIVE  FREE DIVING
When the diver descends below 1.2 meter
(4 feet), Nemo Excel automatically switches to
Dive - Free Diving mode.
Nemo Excel will then display the following dive
details (fig. 46):
Fig. 46
• current depth (in “m” or “ft”);
• duration of the dive in minutes and seconds;
• alarm icons (if enabled);
• temperature (in °C or in °F).
In this mode, all the functions of the buttons
are disabled with the exception of the backlight
(press the <+> button for two seconds).
SURFACE MODE  FREE
When the diver ascends to the surface, Nemo
Excel switches to Surface mode (fig. 47).
Fig. 47
In this mode, the details shown on the display
are:
• maximum depth (in “m” or “ft);
• surface time in minutes and seconds;
• sequential number of the dive;
• duration of the dive in minutes and seconds;
• alarm icons (if enabled).
Pressing the <-> button additionally displays:
• temperature (in °C or in °F);
• the primary time.
<esc> button:
• allows the user to exit Dive Mode and then
change the alarm settings.
<enter> button:
• temporarily displays (for 5 seconds) the dive
parameter settings, just as they appear in
Predive Mode.
NOTE
Carefully read the Log Book chapter of this
manual.
In freediving mode, Nemo Excel only
stores the profile of the most recent diving
session.
LOG BOOK
Log Book mode is used for viewing the details
of past dives on the display. The dives are
organized as in the pages of a “log book”, with
the number “1” assigned to the most recent
dive, “2” to the preceding dive and so forth,
until the memory is full.
If the memory is full, when the user dives
again the oldest record is deleted to free up
memory for the new dive.
The number of dives that can be stored
depends on the type of dive.
Scuba (Air, Nitrox and Bt)
• Maximum capacity of approximately
36 hours of diving with profile points at
twenty second intervals.
Free Dive
• Maximum capacity of approximately
2000 dives.
• Nemo Excel only stores the profiles for the
most recent dive session, for a maximum
capacity of approximately 102 minutes at
intervals of four seconds.
The procedures for accessing Log Book mode
are illustrated in the diagram.
On entering the Log Book, the data stored in
memory is shown grouped according to the type
of dive: Scuba (Air, Nitrox and Bt) and Free Dive.
NOTE
For more extensive data storage,
management and viewing functionality,
use a PC with the IRIS optical interface
(optional).
LOG BOOK  SCUBA
The first page of this Log Book section
contains a summary of all the Scuba dives,
comprising the following details (fig. 48):
• maximum depth reached;
• total dive time (hours);
• total number of dives done;
• coldest logged temperature.
Fig. 48
Press the <enter> button to access the details
for each individual dive (explained on the
following page).
•