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MATRIX Dive Computer
4
1.2 OPERATING MODES
The functions of the Matrix computer
can be grouped into two categories, each
corresponding to a specifi c mode of operation:
watch : Matrix is dry on the surface. In this
mode you can use it as a normal watch.
You can also change settings, review your
logbook, use the dive planner, see remaining
desaturation after a dive, download to PC
and much more;
dive: Matrix monitors depth, time,
temperature and performs all
decompression calculations; dive mode
itself can be broken down into 4 sub
categories:
- pre-dive (Matrix is on the surface but
actively monitoring ambient pressure, so
that it can begin to calculate a dive the
instant it is submerged below 1.2m/4ft);
- dive
- surfacing (Matrix is on the surface at
the end of a dive; dive time calculation
is halted but if the diver submerges
within three minutes the dive is resumed
including the time spent on the surface;
this for instance would allow a diver to
surface momentarily to set a bearing
towards the boat, then submerge again
and swim towards the boat);
- post-dive (after the three minutes of
surfacing mode, Matrix closes the
logbook and reverts to a display showing
desaturation time, no-fl y time and surface
interval; this lasts until the desaturation
and the no-fl y time both have been
reduced to zero).
1.3 RECHARGEABLE BATTERY
Matrix uses a lithium-ion polymer
rechargeable battery. A full charge allows you
to do up to 15 hours of diving, depending on
the usage of the backlight and the temperature
of the water. When used only as a watch, the
battery lasts approximately two weeks. As
a rule of thumb, Matrix uses about 5-6% of
battery per day as a watch and 4-5% for each
hour diving. Diving in cold water, usage of the
backlight and of the beeper increases battery
consumption.
The display alerts you of the status of the
battery. The three possible situations are
described as follows:
- Matrix has more than 15% charge left: no
warning on the display, you can use Matrix
for diving and as a watch;
- Matrix has between 11 and 15% charge
left: the display shows a partially empty
battery symbol next to a warning sign. This
is suffi cient for one 60-minute dive but it is
best to charge the battery now;
- Matrix has 10% or less charge left: the
display shows an empty battery symbol
and a “no dive” message at the top. You
can use Matrix as a watch but not as a dive
computer. If you submerge, Matrix will not
activate and will continue to show the time
of day.
The exact level of the battery charge can be
viewed at the bottom of the display by scrolling
through the information using the bottom right
button (see section 1.4).
In the event that the charge drops below 10%
during a dive, the message LOW BATTERY
will appear on the display. When you see this
message, you should consider starting the
procedure for a safe ascent as there may not
be enough charge to continue diving.
WARNING
- Starting a dive with less than 15% charge
can cause the computer to fail during the
dive. Recharge the battery as soon as
you notice this message.
- Check the battery charge before each
dive and recharge it if necessary.
- Temperature can noticeably affect
battery performance. A low battery
warning may appear when diving in cold
waters even if you think that the battery
should have suffi cient charge.
- It is advised that you charge the battery if
you intend to dive in cold water.
The rechargeable battery has a life time of
approximately 500 charging cycles. Please
contact your authorized Mares dealer if you
need to replace it.
1.3.1 CHARGING THE BATTERY
The battery takes about 2 hours to charge from
completely empty to completely full. To charge
the battery, use the special clip and the USB
cable, connecting it either directly to a power
supply or to the USB port of a PC or Mac. You
will see the battery symbol at the bottom of
the display, with fl ashing elements inside, and
a number indicative of the charge level (from 0
to 100). When the battery is fully charged, the
elements inside the battery stop fl ashing.
1.3.2 CONNECTING MATRIX TO A PC
To connect Matrix to a PC or Macintosh
computer, use the dedicated clip and the USB
cable.
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