NEMO EXCEL User’s Guide Dive computer
Nemo Excel dive computer • TABLE OF CONTENTS Nemo Excel dive computer Responsible Diving Practices Quick Start Guide Time Mode display Time Menu Time Menu Settings Setting the date and time Main Menu “Off” Mode Switch-on Dive Menu Settings Setting the Dive Parameters Set Time Adj time Adj Alarm 2nd Time Set Temp Set Beep Stopwatch Time Personalize display Shortcut to Set Time Functions Set Dive Set dive – Data (fig 21) Set Dive - Data - Del Tissue Set Dive - Mode Air Set - Air - Altitude Set - Air - P
• Nemo Excel dive computer Your new NEMO Excel Watch-Dive Computer is the result of the latest Mares technology, and has been designed to guarantee maximum safety, efficiency, reliability and long life. Its simple and intuitive functions make it ideal for everyday use as well as for all types of dives. This manual contains all the instructions for its use. Mares thanks you for your choice and urges you to always practice safe and responsible diving.
Nemo Excel dive computer which can be used to view additional information, using the <+> or <-> buttons (fig. 2): • the date; • the second time; • the alarm; • the temperature. Note: these are the default display details. Time Menu Settings Setting the date and time Watchset mode is used for setting all the watch (“Time”) functions of your Nemo Excel dive computer. In this mode you can set the time and the alarm.
Main Menu Dive Menu Settings Setting the Dive Parameters Your Nemo Excel has three distinct Menu operating modes: Dive Menu, Time Menu and Main Menu (fig. 8). We conclude this quick guide by looking at how to set up Nemo Excel for a dive. From Main Menu mode, press the <+> or <-> buttons until “TO DIVE MODE” appears on the display. Press the button to accept this item. This accesses the “Dive Menu”. Using the <+> or <-> buttons you can view the various menu items.
Nemo Excel dive computer • Set Time Adj time Set Time is used for setting all the information which appears on the instrument in Time Mode. As already described briefly in the quick guide, the Adj Time menu is used for setting the date and time of the first time zone. It is also possible to choose the format for the primary time display(12h - 24h) (fig. 13). Set Time comprises (fig.
2nd Time Set Beep Nemo Excel allows you to set a second time. This can be particularly useful when traveling between different time zones (fig. 15). The settings for the time signal (beep on the hour) apply only to the Time Mode functions (fig. 17). CNS value is also displayed. However, even when these values are being displayed, it is still possible to view the additional information listed above (fig. 19). Fig.
Nemo Excel dive computer Shortcut to Set Time Functions Set dive – Data (fig 21) Set Dive - Data - Del Tissue This item is used for clearing the residual nitrogen memory of the tissue compartments (fig. 22). To speed up the operations for setting the time, date, second time, alarm and temperature, Nemo Excel includes shortcuts to the “Watchset” menu. To use these shortcuts, simply press the <+> or <-> buttons to access the desired item.
Set - Air - Altitude Set - Air - Fast Asc When this item is accessed, it displays an indication of the current altitude program (P0, P1, P2, P3). Use the <+> or <-> buttons to enter the desired value. Press to the oxygen percentage and advance to the next setting.
Nemo Excel dive computer Fig. 26 Fig. 25 WARNING It is essential to correctly set the oxygen percentage in the mix to ensure correct readouts of: • no decompression time remaining; • decompression stop times; • alarm on exceeding the maximum permitted PPO . 2 • Dive Nemo Excel manages four different types of dive: Scuba AIR Nitrox (EAN) Bottom Time (Gauge) Free dive Free Diving In Set Dive mode it is possible to select the desired type of dive and set up the general parameters for the dive.
<-> button: • is used for changing the information shown on the display bar. button: • temporarily displays (for 10 seconds) the dive parameter settings, just as they appear in Predive Mode. button: • this button is disabled during the dive. WARNING Continual use of the backlight drastically reduces the battery life. 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.
Nemo Excel dive computer At the same time as the audible alarm is triggered, the computer begins monitoring an “Uncontrolled Ascent”. An ascent is considered “uncontrolled” when the diver exceeds the maximum rate for a stretch equal to at least two thirds of the depth at which the audible alarm was triggered. This criterion only applies to alarms triggered below a depth of 12 m (39 ft).
General Nitrox Dive Parameters Predive - Nitrox (EAN) Oxygen Partial Pressure When the diver reaches a depth at which the PPO exceeds the maximum limit entered in the corresponding parameter, (from 1.2 to 1.6 ATM), Nemo Excel triggers an alarm condition signaled by: • blinking depth indication; • audible alarm. 2 The alarm continues until the diver ascends enough to bring the PPO back to within the programmed limit (fig. 35). 2 Fig.
Nemo Excel dive computer Dive - “Deco Stop” Nitrox Surfacing - Nitrox The details displayed in the case of decompression-stop Nitrox dives are the following (fig. 38). When the measured depth is less than 1 m (3 ft), Nemo Excel considers the dive to be suspended (“Surfacing”) and halts the dive timer. If the diver does not return below 1.5 m (5 ft) within the next 3 minutes, Nemo Excel considers the dive to be finished and records its data in the Log Book memory.
• Free Dive WARNING This option is intended only for highly experienced divers. Users who clear the residual nitrogen memory cannot then use the instrument for repetitive dives. After this operation, do not dive with Nemo Excel if you have already dived within the previous 24 hours. • Plan Scrolling of No Decompression Limits Nemo Excel is a truly versatile dive computer, that you can also use for breath-hold dives (freediving).
Nemo Excel dive computer Set Free - Al Depth Dive - Free Diving 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. When the diver descends below 1.2 meter (4 feet), Nemo Excel automatically switches to Dive - Free Diving mode.
Log Book - Free Dive The first page of this Log Book section contains a summary of all the Free dives, comprising the following details (fig. 49): • maximum depth reached; • longest logged dive (minutes and seconds); • coldest logged temperature. Log Book - Scuba - Profile Type of dive AIR EAN freedive BOTTOM TIME Note If the memory is full, when the user dives again the oldest record will be deleted to free up memory for the new dive.
Nemo Excel dive computer Press the <-> button to choose to view one of the following on the display bar: • number of dives done during the session; • longest dive time. Or • type of water (Salt, Fresh). Or • coldest logged temperature. Press the button to access a menu for viewing the principal data of the individual dives. Iris interface unit (optional) which converts the optical signals into electrical signals and vice versa (fig. 55).
Replacing the battery The strap may only be replaced by an authorized Mares service center. Algorithm • RGBM Mares-Wienke, the result of a collaboration between Dr. Bruce R. Wienke and the Mares Research and Development Center. • 10 tissue compartments • Reduction of permissible gradient (M factors) in case of repetitive dives, deeperthan-previous dives or multi-day diving.
cod. 44200658 - 04/08 - ArtBooK 3746/08 Algorithm Deep Stop Mares S.p.A. - Salita Bonsen, 4 - 16035 RAPALLO - ITALY - Tel. +39 01852011 - Fax +39 0185669984 www.mares.
