Puck Pro Dive Computer
12
3.5.3 SPECIAL SITUATIONS
3.5.3.1 SWITCHING BACK TO A GAS MIXTURE
WITH LOWER OXYGEN CONCENTRATION
There may be situations in which you have
to switch back to a gas with lower oxygen
concentration than what you are currently
breathing. This can happen for instance if you
want to descend deeper than the MOD for the
current gas, or if for instance you have run out
of gas in G2 during the decompression. To do
so, simply press the button until the oxygen
concentration is displayed in the lower right
corner, then press and hold to initiate the gas
switch. From here on the procedure is the
same as described in 3.5.2.
3.5.3.2 SUBMERGING BELOW THE MOD
AFTER A GAS SWITCH
If after having switched to a gas mixture with a
higher oxygen concentration you inadvertently
drop again below the MOD for that mixture,
the MOD alarm will immediately go off. Either
switch back to a gas mixture suited for that
depth, or ascend above the MOD for the gas
mixture you are breathing from.
3.6 BOTTOM TIMER MODE
When Puck Pro is set to bottom timer mode, it
will only monitor depth, time and temperature,
and will not carry out any decompression
calculation. Maximum displayed dive time
in gauge mode is 999 minutes. You can only
switch to bottom timer mode if the computer is
completely desaturated. All audible and visual
alarms, other than the low battery alarm, are
turned off.
WARNING
Dives in bottom timer mode are performed
at your own risk. After a dive in bottom timer
mode you must wait at least 24hours before
diving using a decompression computer.
During a dive in bottom timer mode, the
following information is displayed:
- current depth
- max depth
- stopwatch
- dive time
- temperature
- in case of an ascent: ascent speed
(in m/min or ft/min).
Press the button to toggle between:
- max depth
- avg depth
- max depth and time of day in lieu of dive
time (after 4s the dive time appears again).
- empty field next to the current depth
While the average depth is displayed, pressing
and holding the button resets the average depth.
While the time of day is displayed, pressing
and holding the button restarts the stopwatch.
Aside for these two exceptions, pressind and
holding the button starts the backlight.
3.6.1 DIVE VIOLATION INDUCED BOTTOM
TIMER MODE
The following violations can occur during an
Air or Nitrox dive:
- Uncontrolled ascent.
- Missed deco stop.
In case of a violation, Puck Pro will restrict the
use of Air and Nitrox mode for 24hours, and
will only allow operation in bottom timer mode.
• 4 TAKING CARE OF PUCK PRO
4.1 TECHNICAL INFORMATION
Operating altitude:
- with decompression – sea level to
approximately 3700m/12100ft
- without decompression (gauge mode) – at
any altitude
Decompression model: RGBM Mares-Wienke
(10 tissues)
Depth measurement:
- Max displayed depth: 150m/492ft
- Resolution: 0.1m until 99.9m and 1m at
depth deeper than 100m. Resolution in ft is
always 1ft
- Temperature compensation of the
measurement between -10 °C to +50 °C /
14°F to 122 °F
- Accuracy from 0 to 80m/262ft: 1% ±0.2m/1ft
Temperature measurement:
- Measurement range: -10 °C to +50 °C /
14°F to 122 °F
- Resolution: 1 °C / 1 °F
- Accuracy: ± 2 °C / ± 4 °F
Clock: quartz clock, time, date, dive time
display up to 99 minutes (999 minutes in
bottom timer mode)
Oxygen concentration: adjustable between
21% and 99%, ppO
2
max range between 1.2 and
1.6bar
Logbook memory: 35hours of dive profile at
5-second sampling rate
Operating temperature: -10 °C to +50 °C /
14°F to 122 °F
Storage temperature: -20 to 70 °C / -4 to 158°F
Display:
- Diagonal: 38 mm / 1 1/2”
- Mineral glass
Power supply:
- CR2450 user-replaceable battery
- battery life: 200-300 dives. Actual battery
duration depends on the usage of the
backlight and the water temperature.
4.2 MAINTENANCE
The depth accuracy should be verified by an
authorized Mares dealer every two years Aside
from that, Puck Pro is virtually maintenance
free. All you need to do is rinse it carefully with
fresh water after each dive (avoid any chemical
products) and replace the battery when
needed. To avoid possible problems with your
Puck Pro, the following recommendations will
help assure years of trouble free service:
- avoid dropping or jarring your Puck Pro;
- do not expose Puck Pro to intense, direct
sunlight;
- do not store Puck Pro in a sealed container,
always ensure free ventilation.
NOTE
If you notice signs of moisture on the inner
wall of the mineral glass, take your Puck
Pro immediately to an authorized Mares
service center.
WARNING
The mineral glass is not exempt from
scratches resulting from improper use.
WARNING
Do not blow compressed air onto Puck
Pro, because it could damage the pressure
sensor area.
4.2.1 REPLACING THE BATTERY IN PUCK PRO
Replacing the battery is a delicate operation,
and requires close attention. We suggest that
you visit an authorized Mares center. Mares
declines all responsibility for any damage
caused by replacing the battery.
NOTE
Do not discard the old battery in the
environment. Mares adopts a policy of respect
for the environment, and urges use of the
appropriate separated waste collection
service.
WARNING
Inspect the O-ring carefully, checking for
any signs of damage, tearing or warping.
If necessary, replace it with a new O-ring
(Mares spare part Cod. 44200983).
Unscrew the cover of the battery vane by using
a coin that best fits into the slot. Remove the
cover, remove the battery and insert the new
battery paying close attention to the polarity.
Check the o-ring and if needed replace it.
Put the cover back in place and screw it in
fingertight.