Seabear H3 User manual

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Introduction
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SEABEAR H3
INDEX
1Introduction ...........................................................................7
2Safety Considerations...........................................................8
2.1 Warnings.........................................................................10
3Using the SEABEAR H3 .....................................................13
3.1 Activating the SEABEAR H3...........................................13
3.2 Button Operation.............................................................14
3.3 Charging / USB connection ............................................16
4Settings...............................................................................19
4.1 Overview menu structure ................................................20
4.2 Main menu ......................................................................23
4.3 Navigation sub menu ......................................................24
4.4 Editing a heading ............................................................24
4.5 Compass calibration .......................................................26
4.6 Gas submenu:.................................................................27

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SEABEAR H3
4.6.1 Selecting g a gas......................................................27
4.6.2 Modifying a gas entry ...............................................28
4.7 MODES sub menu ..........................................................30
4.8 Settings sub menu ..........................................................31
5SEABEAR H3 on the surface .............................................33
5.1 Watch mode....................................................................33
5.2 main surface screen........................................................35
5.3 Large number dive screen ..............................................38
5.4 Compass screen .............................................................39
5.5 Navigating with the compass ..........................................40
6SEABEAR H3 automatic switch on ....................................42
7Diving with the SEABEAR H3.............................................44
7.1 Preparations before the dive...........................................44
7.2 SEABEAR H3 decompression model .............................46
7.3 No decompression diving................................................49
7.4 Safety Stop indicator.......................................................52

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7.5 Decompression diving.....................................................53
7.6 Multi gas diving NITROX.................................................56
7.7 Gas switches NITROX ....................................................58
7.8 Multi gas diving TRIMIX ..................................................59
7.9 Gas switches TRIMIX .....................................................61
7.10 Ascend speed bar graph...............................................64
7.11 Dive profile....................................................................65
7.12 Inter gas loadings .........................................................66
7.13 Acoustic alarms ............................................................69
7.14 Bottom timer mode .......................................................70
7.15 Apnea mode .................................................................72
7.16 Closed circuit rebreather mode ....................................74
7.16.1CCR related settings ................................................74
7.16.2Selecting a setpoint..................................................74
7.17 After Diving ...................................................................75
7.18 Flying after Diving .........................................................76

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SEABEAR H3
8Logbook ..............................................................................77
9Dive data download ............................................................78
9.1 Immediate download with NFC.......................................78
9.2 PC Mode .........................................................................79
9.3 Customizing the SEABEAR H3 ......................................81
10 Outdoor modes ...................................................................82
10.1 Stop watch ....................................................................83
10.2 Altitude logging .............................................................83
11 Care and Maintenance .......................................................85
12 Specifications......................................................................87
12.1 General specifications ..................................................87
12.2 Decompression algorithm.............................................88
12.3 Electrical Specifications................................................89
12.4 Dive data storage..........................................................89
12.5 Special software features .............................................90
12.6 Testing and validation...................................................90

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13 Troubleshooting ..................................................................91
14 Firmware update.................................................................92
15 Limitations of Liability..........................................................93
16 Contact ...............................................................................95

Introduction
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SEABEAR H3
1Introduction
Thank you for purchasing the SEABEAR H3 smart watch. It is an
advanced outdoor watch fabricated from the toughest materials
and highly sophisticated electronic components. The crispy color
OLED display is extremely easy to read.
The H3 can be used as dive computer for Air, Nitrox, TRIMIX
and closed circuit rebreather diving.1
The H3 is not only great during diving. With its in-built altimeter
and tilt compensated compass, it is also the perfect watch for
outside the water outdoor activities.
The H3 is an active NFC tag, which means that dive data can
instantly be transferred to NFC enabled mobile devices for
detailed visuaklization and for sharing on soc ial networks.
1TRIMIX and CCR modes are only available if these features are unlocked.

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SEABEAR H3
2Safety Considerations
Before using the SEABEAR H3 you must read and understand the information provided in
this manual in its entirety. Be aware that diving has many inherent risks. A dive computer
considerably increases your diving safety but it does not eliminate the remaining risk of
serious injury, or death caused by decompression sickness, Oxygen toxicity or some other
inherent risk of scuba diving.
Do not use this SEABEAR H3 if you are not aware of these risks, and you do not accept
these remaining risks.
In this manual the following precautionary symbols are used to indicate the following
important precautionary statements. Those statements provide information about potential
hazards and proper procedures. Three different safety signs are used to rank their
importance: red stands for vital information, which shall not be ignored under any
circumstances; yellow advises for caution; blue indicates technical or other
recommendations for safe and reliable operation of the device.

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SEABEAR H3
WARNING statements describe potentially hazardous situations, if not
avoided, could result in death,or serious injury. Avoid these situations under
any circumstances.
CAUTION indicates a hazardous situation which, if not avoided, could result
in minor or moderate injury.
NOTICE statements are used to notify the user of information regarding
installation, operation, maintenance, performance, general important tips ,
or statements describing a procedure, or situation that might cause damage
to the device but is unrelated to physical injury.

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2.1 Warnings
Before using the SEABEAR H3, read the manual in its entirety and get
familiar with all the functions of the device.
Divers must have successfully completed a course in scuba diving. They
must have knowledge about the potential risks and hazards of scuba diving.
The risk from decompression sickness (DSC) or Oxygen toxicity for any
dive profile, even if you follow dive tables, or a dive computer, cannot be
totally eliminated. This risk also depends on the individual diver’s
physiological condition, which can vary from day to day. The SEABEAR H3
cannot account for these variations.
We strongly advise you to stay within the exposure limits provided by the
instrument to minimize the risk of DCS.
No decompression algorithms can give a guaranteed safe decompression.
It is your responsibility to be trained, dive safely, carry backup tables and
instrumentation and compare any decompression schedules generated with
the SEABEAR H3 against established diving tables.
Before diving you should consult a physician regarding your fitness to dive.
We strongly recommend diving within the recreational limits, not to surpass
the maximum depth of 40 m, and to limit the pO2 to a maximum of 1.4 bar.
Exposure to greater depths or pO2 increases the risk of Oxygen toxicity
and/or decompression sickness. Diving beyond the recreational limits may

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SEABEAR H3
greatly increase your risk of decompression sickness.
Diving should not be undertaken without obtaining the necessary training
from a recognized training agency.
The SEABEAR H3 recreational version is designed for Nitrox with Oxygen
content from 20 to 50%. It is possible to obtain an unlock code to use the
SEABEAR H3 for TRIMIX diving. Proper training in TRIMIX diving is
required before doing any TRIMIX or HeliOx dives.
Do not ignore warning signs and indicators on the SEABEAR H3, as this
may result in serious injuries and can be even lethal.
Be aware of Nitrogen narcosis, this cannot be indicated on this computer,
there are no warnings.
The SEABEAR H3 can be only used with open circuit breathing systems.
The SEABEAR H3 should never be shared between differed divers. Use
always the same dive computer for repetitive dives. There is an in-built
memory that keeps track of a diver’s diving history. Substituting the
SEABEAR H3 in between a series of repetitive dives may result in incorrect
decompression calculations.
Should the SEABEAR H3 fail, you should immediately abort the dive by
using a diving table or a back up dive computer.

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If a reset of the SEABEAR H3 occurs, for instance, after a software update,
information about tissue tensions from previous dives will be lost.
When this situation happens in between a series of repetitive dives, the
decompression schedule and the remaining no decompression time for the
following dives may be incorrect.
Do not fly, or travel to high altitudes while the NO-FLY indication remains
active. Flying while the SEABEAR H3 displays NO FLY can result in
serious injury or death.
If you do not perform the proposed decompression stops, a flashing sign
will indicate a ceiling to which you should ascend. If you still ignore these
warnings, there is NO additional ERROR OR LOCKOUT. Do not ignore
these warnings, decompression stops must be done for your own safety
and on your own responsibility.
For safety reasons, you should always dive with backup instruments,
including a depth gauge, pressure gauge, dive watch, or a backup dive
computer, and have access to decompression tables while planning your
dive with the SEABEAR H3.
If you do not fully understand how to use the SEABEAR H3, or if you have
any questions, contact your instructor or your authorized Seabear Diving
Technology dealer before diving with it.

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3Using the SEABEAR H3
3.1 Activating the SEABEAR H3
When the SEABER H3 is not used, it is in standby mode, which
means, that the display is switched off to reduce the power
consumption to a minimum. Press either the left or the right
button shortly to activate the computer.
Then the SEABEAR H3 will start in Watch mode and display
time and date.
Short press of the left button will toggle between outdoor
screens.
Long press of the left button will start the dive computer mode.
Short press of the right button will start and stop the stop watch,
while long press will reset the stop watch to 0.
The SEABEAR H3 will switch off the display after 5s if no button
is pressed.

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3.2 Button Operation
2 push buttons are used to operate the SEABEAR H3. The
operation of the device is done with short and long pushes of the
buttons.
Within the menu, the long push functions are indicated at the
bottom of the screens directly above the buttons.
A short press of the left button, which is indicated
with a short arrow, would toggle in this example the screens.
A long press of the left button, which is indicated
with a long arrow, would switch to dive computer mode (DC).

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A short push of either button is used to switch between screens, navigate in a menu,
increment (right button) or decrement (left button) user settings. The symbol for a short
push is a hand with a stretched index finger.
To perform a long push, the button is pushed and held for 1s. Long button pushes have
different functions. The menu is accessed from one of the main screens with a long push of
the left button. The symbol for a long push is a hand with a watch symbol and a stretched
index finger.
Symbol for a short push: Symbol for a long push:

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3.3 Charging / USB connection
The SEABEAR H3 is charged via USB. To charge the
SEABEAR H3 or to download data from the SEABEAR H3, first,
connect the USB cable to the SEABEAR H3. Then connect the
USB cable to a personal computer USB port or to a USB
charger. The output of the charger should be 5V. The charger
should be able to provide at least 500 mA electrical current.
After connecting the SEABEAR H3 to a PC, navigate to
menu/PC mode, and activate PC MODE by press and hold of
the left button. The SEABEAR H3 should be automatically
recognized as mass storage device.
Eject the SEABEAR H3 correctly from your PC before exiting PC
mode. Further information can be found in chapter 10.2.

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Do not dive when the SEABEAR H3 battery indicator is red. The dive
computer might run out of battery. In such a case, the H3 may give incorrect
depth readings, incorrect decompression data or may shut off completely. In
case of a red battery indicator, recharge the SEABEAR H3 before the next
dive.
If during a dive the battery indicator starts flashing red, this is a sign that the
battery is discharged and the dive computer may switch off soon or perform a
reset. After a reset, dive data, depth, divetime and decompression obligations
are incorrect.
It the battery was completely discharged, the dive computer may reset and
loose all decompression information. If reset occurred between repetitive
dives, be aware that the SEABEAR H3 looses decompression data and
compartment inert gas pressure data from previous dives, thus
decompression readings and no decompression calculations for following
dives may be incorrect.
After a dive, before connecting the cable, rinse the SEABEAR H3 in fresh
water. Make sure that the USB connector is clear and dry before connecting
the USB cable.
Do not disassemble or remodel any cable or connectors. Use only the
original USB cable, supplied with the H3. Check compatibility before use.

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Use only a clean and dry USB cable. Clean and dry the connector surfaces of
the cable.

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4Settings
The SEABEAR H3 has an intuitive menu which allows the user
to change settings quickly.
To enter the menu, press and hold the left button for more than
1s.
It is possible to enter the menu on the surface as well as also
during the dive. However, during the dive, not all menu items are
available.
After 20s inactivity, which means that for 20s you do not press
any button, the SEABEAR H3 will exit the menu automatically.

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4.1 Overview menu structure
CCR only available in CCR mode
CCR GAS TABLE diluent gas table
SET CCR SP1 switch to setpoint 1
SET CCR SP2 switch to setpoint 2
SET OC switch to open circuit
EDIT CCR SP1 edit setpoint 1
EDIT CCR SP2 edit setpoint 2
GAS gas table with up to 8 gases
NAVIGATION select one of 3 predefined headings
STOP WATCH
START start stop watch
STOP stop stop watch
RESET reset stop watch
MODES
OC open circuit diving mode
APNEA apnea diving mode
BOTTOM TIMER bottom timer mode
CCR closed circuit rebreather mode