Instead
of monitoring information from several sources, Suunto D9 provides
you with all the crucial information from a single source, conveniently
mounted on your wrist.
The integrated digital compass can be accessed from both DIVE
and TIME modes, and provides a graphical compass rose display
and numerically displayed bearings. Bearings can be locked,
and visual aids are provided for navigating set courses or for
pattern navigation. Headings can be stored in the memory for
later analysis using the memory functions or the PC interface.
Suunto D9 can be used with the optional Suunto Wireless Transmitter.
When enabled it provides the diver with tank pressure and air-time
information, as well as a tank pressure bar graph. Real-time
tank pressure data is stored in the memory, and can be later
analyzed using the memory or PC interface functions.
Three different operating modes are available: Air, Nitrox
and Gauge.
The air mode is for diving with standard air, whereas the nitrox
mode provides an option for using up to three different gas
mixes during the dive.
The gauge mode has several applications, such as for freediving.
The profile-sampling rate can be set to as low as 1s, and the
ascent rate monitoring can be disabled. The gauge mode also
provides a dual display stopwatch, which allows the timing of
underwater activities to the second. The maximum depth display
of Suunto D9 is 200m/660ft.
Suunto D9 provides the user with an option to use traditional
safety-stops, or to use deep stops. The deep stops are calculated
iteratively throughout the dive, and the deep stop time can
be set to 1 or 2min. The decompression calculations are based
on the Suunto RGBM (Reduced Gradient Bubble Model).
The matrix display provides outstanding possibilities for post-dive
analysis of the recorded information. In the memory mode the
actual dive profile is graphically displayed, together with
real time depth, time, tank pressure and temperature data. Locked
compass bearings are also displayed in the profile.
The housing of Suunto D9 is made of titanium, with some stainless
steel inserts. The display is made of scratch resistant mineral
crystal glass, and the pressure rating is 20atm.
