U USE ER M - SEABEAR Diving Technology

U USE ER M - SEABEAR Diving Technology
Inttroduction
S
SEABEAR H3
3
USE
U ER M
MAN
NUAL
L
V0.12
2 (requires firmware V1.27)
1
Introduction
SEABEAR H3
INDEX
1
Introduction ........................................................................... 7
2
Safety Considerations........................................................... 8
2.1 Warnings ......................................................................... 10
3
Using the SEABEAR H3 ..................................................... 13
3.1 Activating the SEABEAR H3 ........................................... 13
3.2 Button Operation ............................................................. 14
3.3 Charging / USB connection ............................................ 16
4
Settings ............................................................................... 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
2
Introduction
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
5
SEABEAR 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
6
SEABEAR H3 automatic switch on .................................... 42
7
Diving 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
3
Introduction
SEABEAR H3
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
7.16.1 CCR related settings ................................................ 74
7.16.2 Selecting a setpoint .................................................. 74
7.17 After Diving ................................................................... 75
7.18 Flying after Diving ......................................................... 76
4
Introduction
8
Logbook .............................................................................. 77
9
Dive data download ............................................................ 78
SEABEAR H3
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
5
Introduction
SEABEAR H3
13 Troubleshooting .................................................................. 91
14 Firmware update ................................................................. 92
15 Limitations of Liability.......................................................... 93
16 Contact ............................................................................... 95
6
Introduction
SEABEAR H3
1 Introduction
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.
1
TRIMIX and CCR modes are only available if these features are unlocked.
7
Safety Considerations
SEABEAR H3
2 Safety 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.
8
Safety Considerations
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.
9
Safety Considerations
SEABEAR H3
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
10
Safety Considerations
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.
11
Safety Considerations
SEABEAR H3
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.
12
/Using the SEABEAR H3
SEABEAR H3
3 Using 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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/Using the SEABEAR H3
SEABEAR H3
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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/Using the SEABEAR H3
SEABEAR H3
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:
15
/Using the SEABEAR H3
SEABEAR H3
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.
16
/Using the SEABEAR H3
SEABEAR H3
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.
17
/Using the SEABEAR H3
SEABEAR H3
Use only a clean and dry USB cable. Clean and dry the connector surfaces of
the cable.
18
Settings
SEABEAR H3
4 Settings
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.
19
Settings
SEABEAR H3
4.1 Overview menu structure
CCR
only available in CCR mode
CCR GAS TABLE
SET CCR SP1
SET CCR SP2
SET OC
EDIT CCR SP1
EDIT CCR SP2
diluent gas table
switch to setpoint 1
switch to setpoint 2
switch to open circuit
edit setpoint 1
edit setpoint 2
GAS
gas table with up to 8 gases
NAVIGATION
select one of 3 predefined headings
STOP WATCH
START
STOP
RESET
start stop watch
stop stop watch
reset stop watch
OC
APNEA
BOTTOM TIMER
CCR
open circuit diving mode
apnea diving mode
bottom timer mode
closed circuit rebreather mode
MODES
20
Settings
SEABEAR H3
SETTING
DIVE
CONSERVATISM
DIVE DETECTION
DIVE TIMEOUT
SAFETY STOP
USER GF HIGH
USER GF LOW
MAX PO2
TIME
TIME ZONE 1
TIME ZONE 2
ALARM CLOCK
ALTITUDE
LOG ALTITUDE
COMPASS CALIBRATION
COMPASS DECLINATION
UNITS
DISPLAY
conservatism settings
automatic dive computer activation
dive mode timeout after surfacing
enable/disable 3m safety stop
Gradient Factor High setting
Gradient Factor Low setting
max pO2 for depth warnings
set time, date and time zone
adjust time zone 1 (UTC +- h)
adjust time zone 2 for dual clock mode (UTC +-h)
set alarm clock
adjust altitude
activate/deactivate altitude logging capability
calibrate the compass
set sompass declination
set units to metric or imperial
OLED BRIGHTNESS
COLOR
SCHEMES
COLOR WATCH
set oled brightness
RESET SETTINGS
FORMAT MEMORY
reset all settings to default
format internam memory
color schemes for the dive computer
color schemes for the watch mode
SYSTEM
21
Settings
SEABEAR H3
LOGBOOK
display logbook
PC-MODE
mass storage/USB mode
INFORMATION
information
STANDBY
switch off dive computer
At the bottom of the screen is written what function is performed when one button is
pressed long:
SELECT:
a menu item or gas is selected
EDIT:
edit a value, gas, etc.
SAVE:
save/store a value, like for instance O2 or He fraction or compass heading
EXIT:
exit the menu
22
Settings
SEABEAR H3
4.2 Main menu
The main menu consists of several sub menus.
Shortly press the left and the right button to navigate in between
the menu items.
Press and hold the left button to enter a sub menu or to select a
menu item in the menu (like STANDBY).
Press and hold the right button to exit the main menu.
Selecting the menu item STANDBY switches the SEABEAR H3
into standby mode.
↓
↑
Selecting the menu item INFORMATION displays information
about the SEABEAER H3. Serial number, firmware version and
deco code version are shown.
23
Settings
SEABEAR H3
4.3 Navigation sub menu
In the navigation sub menu it is possible to store and/or select up
to 3 compass headings.
Shortly press the left or the right button to navigate down and up
respectively.
Press and hold the left button to set one heading or to switch off
navigation.
Press and hold the right button to edit one heading.
4.4 Editing a heading
First aim the H3 at the desired direction. Then long press the left
button to store the direction that is displayed on the screen. In
the next step you can modify the caption of the heading. Short
press the left or the right button to scroll characters.
Press and hold the left button to save one character.
24
Settings
SEABEAR H3
Use a space character at the end of the caption to indicate the end of the caption you want
to enter. Press and hold the left button to save the current heading.
In the next step it is possible to save a depth. Shortly press the left or the right button to
increase or decrease the depth.
Press and hold the left button to save the depth.
Iron, magnetic fields and electric fields can disturb the compass and can
cause incorrect readings.
The magnetic field of the earth is not homogeneous. Be aware of
declination. The declination can be set in menu SETTINGS/DECLINATION
25
Settings
SEABEAR H3
4.5 Compass calibration
You can perform a compass calibration by entering the menu/SETTINGS/CAL COMPASS.
The compass calibration takes approximately 2 minutes. Within this 2 minutes rotate the
SEABEAR H3 vertically around all its axes.
After calibration check the compass heading. If the compass heading is incorrect, redo the
calibration process.
For further instructions on compass calibration visit the SEABEAR webpage www.seabeardiving.com.
26
Settings
SEABEAR H3
4.6 Gas submenu:
This sub menu is used to program up to 8 different breathing
gases and to activate a breathing gas.
NOTE: It is only possible to save more than one gas, when the
H3 MULTIGAS feature is unlocked.
Shortly press the left or the right button to navigate in between
the gases.
Long press the left button to select a gas.
4.6.1
Selecting g a gas
Press and hold the left button to select a specific gas. After
setting one gas, the SEABEAR H3 exits the menu and returns to
normal operation. The SEABEAR H3 uses then this gas for
calculating compartment on and off gassing.
↓
↑
27
Settings
SEABEAR H3
4.6.2
Modifying a gas entry
Press and hold the right button to modify or delete a gas entry.
Then the O2 value of the gas entry will start blinking, which
means that this value can be edited now.
Shortly press the right button to increment the O2 fraction.
Shortly press the left button to decrement the O2 fraction.
Press and hold the left button to store the O2 fraction.
Press and hold the right button to delete a gas entry. It is only
possibly to delete a gas entry which is not set.
-
+
28
Settings
SEABEAR H3
If TRIMIX is unlocked, it is then also possible to set the He fraction of the gas. Again use
right button short presses to increment and the left button short presses to decrement the
Helium fraction. Press and hold the left button to store the Helium fraction.
The SEABEAR H3 uses the gas that is currently set for calculating
compartment inert gas on and off gassing, which is the basis for no
decompression time calculation and for calculating decompression stops.
The SEABEAR H3 uses all programmed gases to calculate decompression
stops and to estimate time to surface.
Make sure, that the gas, which is currently set, matches the gas you are
breathing. If the gas fractions set in the SEABEAR H3 do not match the
frations of the gas you are actually breathing, decompression calculation will
be wrong.
Use multi gas diving only when you are trained to do so.
Use O2 enriched breahting gases only when you are properly trained and
you have a valid NITROX certification.
Use breathing gases with a He fraction only when you are properly trained
and you have a valid TRIMIX certification.
29
Settings
SEABEAR H3
4.7 MODES sub menu
Modes sub menu: In this sub menu it is possible to switch
between standard dive computer mode, apnea or breath-hold
diving mode, bottom timer mode and closed circuit rebreather
mode.
Shortly press the left or the right button to navigate up and down
in the menu. Press and hold the left button to select a mode.
In the dive computer mode (default mode) the SEABEAR H3 is
calculating compartment on and off gassing, no decompression
times and decompression stops.
The apnea mode is especially designed for breath-hold diving. No decompression data are
shown.
In the bottom timer mode, no decompression data are shown either.
I
When using the bottom timer mode, the SEABEAR H3 uses the Nitrogen
fractions of air to calculate on and off gassing of compartments for the
purpose of estimating no flight times.
30
Settings
SEABEAR H3
4.8 Settings sub menu
The sub menu setting allows the user to modify many
parameters of the SEABEAR H3.
Shortly press left or right button to navigate between menu
items. Press and hold left button to select an item. Press and
hold right button to exit the menu.
The sub menu SETTINGS contains the following items:
DIVE: dive relevant parameters can be set
ALTITUDE: allows setting the current altitude
TIME: time, date can be set (UTC)
TIME ZONE: the time difference is set (UTC+- h)
COMPASS: select this menu item to perform a compass calibration
DECLINATION: a compass declination can be set. Default value is 0°
OLED BRIGHTNESS: Use this sub menu to adjust the brightness of the OLED display.
31
Settings
SEABEAR H3
UNITS: This sub menu allows switching between metric and imperial units.
COLORS: Use this sub menu to select different color appearances of the SEABEAR H3.
There are two sub menus. In COLOR SCHEMES it is possible to set the color schemes of
the SEABEAR H3. In COLOR WATCH it is possible to set the color of the watch screen.
H2O DENSITY: only available with Science unlock - the water density can be set in order to
achieve geometrically accurate depth readings. In all other modes the SEABEAR H3 depth
readings are according to EN13319.
TIME FROM GPS: only available with GPS unlock – use this menu item to obtain the time
settings from the GPS receiver.
ALARM: in this menu it is possible to set the alarm timer. You can choose between one
single alarm or daily alarm.
32
/SEABEAR H3 on the surface
SEABEAR H3
5 SEABEAR H3 on the surface
On the surface, the SEABEAR H3 is usually in a standby mode
to reduce the power consumption to a minimum. In standby
mode, a fully charged battery may last up to more than a year.
5.1 Watch mode
You can use the SEABEAR H3 as a watch. Shortly press the left
or the right button, to switch on the display. The display shows
time, date. Moreover there is an indicator for the alarm clock.
The example shows: time 7:00, January 20th 2015.
In the second example the alarm clock is set to 17:00.
After a few seconds the display will fade back and the SEABEAR
H3 will return to standby mode.
During watch mode, press the left button long to activate the dive
computer mode.
33
/SEABEAR H3 on the surface
SEABEAR H3
The SEABEAER H3 also features a dual time screen. This is
especially interesting when you are on holidays and you would
like to know also the time at your home for instance. It is
possible to set 2 time. The time difference is simply set by
adjusting the UTC offset in the menu SETTINGS/TIME ZONE 1
and TIME ZONE 2. Note: The first time is the time that is used
by the dive computer for storing dive data in the logbook and for
decompression calculation.
It watch mode a stop watch is available. Press the right button
short to start and stop the watch, and press the right button long
to reset the stop watch. In case that LOG ALTITUDE is
activated, as soon as the stop watch is activated, the altitude
profile will be logged.
34
/SEABEAR H3 on the surface
SEABEAR H3
5.2 main surface screen
In standby mode, shortly press either button to enter watch
mode. Afterwards, press either button again, to switch on the
SEABEAR H3.
The surface main screen of SEABEAR H3 shows a multitude of
information:
In the top row local time and date are displayed. In the lower
fields the ambient pressure is shown. In this example the
ambient pressure is 1013 mbar. Below the current altitude is
displayed (0 m). The conservatism setting is GF15/90. The
battery is full. A red no fly indicator is visible – this means that at
this moment flying is not allowed. In this example the no fly
indicator will remain red for another 2h and 17 min, and then the
no fly indicator will turn green.
The second example shows that the diver is at 350m altitude,
the current atmospheric pressure is 980 mbar, the battery is only
75% charged and the conservatism setting is GF 30/80. The no
35
/SEABEAR H3 on the surface
SEABEAR H3
fly indicator is green, thus according to the algorithm in the
SEABEAR H3, it is possible to fly.
Example 3 of the surface screen shows that the diver is at 500m
altitude. In this example, the SEABER H3 is switched to Apnea
or Bottom timer mode. In these mode a conservatism setting
does not make sense, thus instead of GF data, the surface
interval is shown. The surface interval is the elapsed time on the
surface after end of the last dive. The surface interval in that
example is 2h and 3 min. The remaining battery capacity is less
than 30%, thus the SEABEAR H3 should be charged before the
next dive.
When the SEABEAR H3 is charged via a USB cable, then the
battery symbol shows a bold arrow.
This example also shows how the SEABEAR H3 can be
customized. SEABEAR H3 Diver data is stored in a file on the
internal memory.
36
/SEABEAR H3 on the surface
SEABEAR H3
If the SEABEAR H3 is fully charged and is still connected to a
USB charger or USB port, the battery symbol shows no arrow
anymore. Instead a USB symbol is displayed (Example 4).
The SEABEAR H3 has an inbuilt algorithm to automatically
adapt to altitude, therefore it is not required to manually set the
SEABEAR H3 to altitude diving. The inbuilt algorithm measures
the ambient pressure for 1 min. If the current displayed value is
not validated by the in-built algorithm and needs to be updated,
the small warning indicator is displayed left to the ambient
pressure reading. In this case the ambient pressure reading is
displayed grey instead of white.
The SEABEAR H3 offers alternative screens. Short press the left
or the right button to switch between main surface screen, the
large number dive screen and the compass screen.
37
/SEABEAR H3 on the surface
SEABEAR H3
5.3 Large number dive screen
Shortly press the left or the right button to navigate to the large number dive screen. The
large number dive screen is available on the surface as well as during diving.
On the surface it shows data about the last dive, 40.2m maximum depth and 16 min and
44s dive time. The currently selected gas is AIR with an MOD of 66m. In the right field on
the bottom the surface interval is shown. The surface interval is the time that has passed
since sufracing after the last dive.
A yellow STOP sign (picture in the middle) indicates that the SAFETY STOP was missed.
The red DECO sign (right picture) indicates that one or more DECO stops were missed.
38
/SEABEAR H3 on the surface
SEABEAR H3
5.4 Compass screen
Shortly press the left or the right button to navigate to the
compass screen. The large compass screen is also available
during diving.
The compass screen shows the heading. The current depth is
shown on top left of the screen. On the right side either the
current time or the dive time is shown, dependent wether the
diver is on the surface or is diving.
The example shows heading 87°, depth 7.4 m, and dive time 27
minutes and 12 seconds.
The compass screen is available on the surface as well as in
water.
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/SEABEAR H3 on the surface
SEABEAR H3
5.5 Navigating with the compass
Up to 3 compass headings can be stored in the SEABEAR H3.
Select from the sub menu NAVIGATION one pre programmed
heading.
Short press either button to navigate between pre-programmed
headings.
Press and hold the left button to select one heading.
In the current example the preprogrammed heading “WRECK”
was selected. The actual heading of the diver is 87°. The
selected heading is 95° and is displayed in the same color as the
name of the heading. A little arrow on top of the compass scale
is directing to the right, suggesting the diver to turn a bit more
right to meet the selected heading. If actual heading and
selected heading match, a round circle will be displayed on top
of the compass scale and the blue line on the compass scale will
be exactly between the two green direction lines of the compass
scale.
40
/SEABEAR H3 on the surface
SEABEAR H3
Attend a course in underwater navigation prior to using a compass
underwater.
Exercise and become familiar with the compass of the SEABEAR H3 on land,
before using it underwater.
Check before a dive, if the compass works correctly.
Metals, electric fields and magnetic fields may influence the compass and
cause incorrect readings.
41
SEABEAR H3 automatic switch on
SEABEAR H3
6 SEABEAR H3 automatic switch on
It is recommended to switch on the SEABEAR H3 before entering the water. However it is
possible, that a diver forgets to turn it on. The SEABEAR H3 therefore includes a
sophisticated algorithm, which detects the beginning of a dive and automatically turns it on,
even when the dive computer is in standby mode.
The algorithm measures the ambient pressure in intervals of 10s. If the diver starts a dive,
and the ambient pressure supersedes 1.1 bar absolute pressure, which equals to 1m depth
at sea level, or if the diver descends more than 1m/min, the SEABEAR H3 is switched on.
The automatic switch on feature can be activated
SETTINGS/DIVE/DIVE DETECTION/AUTO SWITCH ON.
or
deactivated
in
menu
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SEABEAR H3 automatic switch on
SEABEAR H3
It is recommended to switch on the SEABEAR H3 before entering the water.
If the automatic turn on feature is activated, the SEABEAR H3 will be
automatically switched on at the beginning of the dive.
In case of a fast drop of atmospheric pressure it is possible that the
SEABEAR H3 enters dive mode, even when not being immersed in water.
This can only happen in rare cases, for instance during the free fall phase
in sky-diving. Deactivate the automatic switch on feature when you use the
SEABEAR H3 for sky diving activities.
When the automatic switch on feature is deactivated, be aware, that in this
case, if the diver does not switch on the dive computer before starting a dive,
the depth, dive time and decompression calculation may be incorrect.
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Diving with the SEABEAR H3
SEABEAR H3
7 Diving with the SEABEAR H3
7.1 Preparations before the dive
Switch on the SEABEAR H3 before diving and make all necessary settings on the surface.
Check the SEABEAR H3 for damages before diving.
Before entering the water check on the surface screen:
-
Battery level
Personal settings and Gradient settings
Gas settings
Time and date
Units: use units you are familiar with (imperial or metric)
Switch on the SEABEAR H3 before you enter the water. If automatic switch on is activated,
you do not need to switch on the SEABEAR H3. It will be activated automatically as soon
as you dive deeper than 1m, however we still recommend to switch on the H3 before
entering the water.
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Diving with the SEABEAR H3
SEABEAR H3
Before each dive check the battery power and recharge the battery if
necessary. Recharge the battery when the computer has not been used for a
long time. Low temperatures can affect battery performance. Pay special
attention to the charge level of the battery during cold-water dives.
Verify before each dive, that the SEABEAR H3 settings are correct.
If you are using breahting gases other than air, analyze the breathing gas
before the dive.
Set the SEABEAR H3 to units you are familiar with (imperial or metric units).
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Diving with the SEABEAR H3
SEABEAR H3
7.2 SEABEAR H3 decompression model
The SEABEAR H3 calculates no decompression times and decompression stops, depth
and duration with a mathematical decompression model, which estimates the inert gas
uptake and release during diving. The decompression model in the SEABEAR H3 uses the
Buelhmann ZH-L16C dataset. The model uses 16 hypothetical compartments for Nitrogen
to estimate the inert gas loadings of the tissues of the body during a dive. In case the
SEABEAR H3 is enabled also for TRIMIX diving, additional 16 hypothetical compartments
are used to estimate the Helium gas loadings.
The popular gradient factor (GF) concept allows customization of the algorithm. The
gradient factor concept allows reducing the maximum allowable compartment gas loading
to a percentage of the maximum allowable loading according to the original Buehlmann ZHL16 model. In other words, a gradient factor below 100, results in shorter no
decompression times, longer decompression schedules and is more conservative than the
original algorithm.
There are two gradient factors. Gradient Factor High (GF High) limits the maximum
allowable compartment tissue on the surface. Gradient Factor Low is only relevant for
decompression diving. It reduces the maximum allowable compartment gas loading at
depth. A short GF Low setting results in deeper decompression stops.
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Diving with the SEABEAR H3
SEABEAR H3
The SEABEAR H3 features a very precise pressure sensor,
which can be also used as altimeter. This allows the SEABEAR
H3 to adapt automatically to the reduced atmospheric pressure
in altitude diving.
The SEABEAR H3 comes with 4 predefined Gradient factor
settings.
- GF 35/85 standard – this is the default setting
- GF 30/70 more conservative
- GF 80/80 only shallow stops
- GF 95/95 no conservatism
- User setting (only available with MULTIGAS and TRIMIX
unlock)
The conservatism can be set in
/SETTINGS/DIVE/CONSERVATISM
GF High and GF low can be set in /SETTINGS/DIVE
47
Diving with the SEABEAR H3
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A smaller GF High allows you shorter No Decompression Times.
Diving with a smaller GF High reduces risk of decompression sickness.
GF Low is only relevant when doing decompresion dives. A GF Low smaller
than GF high results in deeper stops.
Do not use GF setting 95/95. This enables longer no decompression times
and short decompression schedules, but has nearly no safety margin in
comparison to a plain Buehlmann ZH-L16 algorithm. GF setting 95/95 has an
increased risk of decompression sickness.
Do not program GF settings yourself, unless you have the required
knowledge about decompression theory, the m-value concept and gradient
factors.
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Diving with the SEABEAR H3
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7.3 No decompression diving
During no decompression diving, the SEABEAR H3 shows all
dive relevant information. There are 3 screens available.
The standard and default screen shows next to depth, dive-time,
decompression information and maximum depth, as well as
detailed information about compartment inert gas loadings,
ascent and descent speed and battery voltage.
The example shows current depth 22.3m, maximum depth
22.3m, battery is full, dive-time is 18min 1s, remaining no
decompression time NDT is 8 min, the water temperature is
22.5°C, the selected breathing gas is air, the conservatism
setting is default GF35/85, and the diver is ascending with
10m/min. On the left side are 16 bar graphs showing the
compartment inert gas loadings (left the fast compartments, right
slow compartments).
The second screen shows only the most important data about
the same dive situation, but in easy to read large numbers.
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Diving with the SEABEAR H3
SEABEAR H3
The depth field as well as the NDT field are color coded. The
color coding of the depth field is based on the pO2 of the current
breathing gas, thus it is dependent on the O2 fraction of the
breathing gas and the depth.
The maximum pO2 can be set in SETTINGS/DIVE/MAX PO2
Green:
pO2 < MAX PO2 – 0.2 bar
Yellow:
MAX PO2 - 0.2 bar < pO2< MAX PO2
Red:
MAX PO2 < pO2< MAX PO2+ 0.2 bar
Red blinking:
pO2 > MAX PO2 + 0.2 bar
The NDT field is color coded as well:
Green:
NDT > 1min
Yellow:
NDT =1 min
Red:
NDT>= 0min
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Diving with the SEABEAR H3
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The risk of 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. However, even if you stay within
recreational limits and the no decompression limits given by this dive
computer, DCS may appear.
Before diving you should consult a physician regarding your fitness to dive.
In recreational diving do not dive with a pO2 > 1.4 bar. Diving with a high pO2
may lead to O2 intoxication
Never dive with a pO2 > 1.6 bar. Diving with a pO2 >1.6 bar will lead to O2
intoxication.
Do not dive deeper than what your current diving qualification allows you to.
NITROX diving requires proper training. Do not dive with NITROX without a
NITROX certification.
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Diving with the SEABEAR H3
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7.4 Safety Stop indicator
At the end of the dive, before surfacing, a diver should perform a
3 min safety stop between 3m and 6m depth.
The SEABEAR H3 includes a Safety Stop feature, which
requests a 3 min safety stop between 3 and 6 m depth.
The SEABEAR H3 only requests a Safety Stop if the dive was
deeper than 10m.
The Safety Stop feature can be enabled or disabled in the
submenu SETTING / DIVE / SAFETY STOP
In the example on this page the diver has performed a dive to a
maximum depth of 22.3 m and now at around 5m depth, the
safety stop indicator suggests a 3min stop.
Perform a safety stop at the end of the dive to
reduce the risk of decompression sickness.
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Diving with the SEABEAR H3
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7.5 Decompression diving
If during diving, the no decompression limits are exceeded and
the remaining no decompression time is 0, then during ascend
obligatory decompression stops are required. The SEABEAR H3
calculates the required decompression stops based on the
compartment inert gas loadings and the programmed diving
gases. In recreational mode, only one gas is available.
In decompression diving, the SEABEAR H3 shows a ceiling in m
and the estimated time to surface. An additional screen is
available, which gives detailed decompression stop information
at which depth decompression stops have to be done as well as
how long those have to be.
The example screen shows a current depth of 22.3m, dive time
32 min 1s, maximum depth is 22.3m, the depth ceiling is 9m,
and the estimated time to surface (TTS) is 7 min. In this case, it
is not safe to ascend shallower than 9m.
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Diving with the SEABEAR H3
SEABEAR H3
The same decompression information is also shown on the
second screen in large numbers.
As soon as the diver has to perform decompression stops, in
cases where there is a ceiling indicator and time to surface is
displayed, additional screen shows the decompression schedule.
This screen shows next to current depth, dive-time and local
time, also the current ascend speed, which is 5m/min in this
example. Moreover the required decompression stops are listed:
One stop at 6m for 30s
One stop at 3m for 4 min, 20s
54
Diving with the SEABEAR H3
SEABEAR H3
The risk of 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.
Besides the decompression stops, there are no additional mandatory safety
stops or error messages displayed when the decompression ceiling and time,
or the recommended ascent rate are violated.
Do not violate the ceiling depth during your decompression. In order to avoid
doing so by accident, you should stay slightly below the ceiling depth.
Going deeper than the required ceiling depth will increase your total time to
surface
Do not use breathing gases other than air, unless you are properly trained
and NITROX or TRIMIX certified.
55
Diving with the SEABEAR H3
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7.6 Multi gas diving NITROX
If multi gas diving is unlocked, it is possible to use more than one breathing gas with your
SEABEAR H3. A maximum of 8 different breathing gases can be programmed in menu
GAS. The SEABEAR H3 suggests the best breathing gas for you dependent on the depth
and the fractions of the programmed breathing gases. It suggests the breathing gas with
the highest fO2 fraction that at the current depth has still a pO2 of less than 1.6 bar.
The TTS prognosis as well as the decompression schedule are calculated on the basis of
the programmed breathing gases.
If the selected breathing gas is different than the breathing gas
suggested by the SEABEAR H3, the SEABEAR H3 will highlight
the better breathing gas with a blinking indicator.
To select the breathing gas suggested by the SEABEAR H3, it is
sufficient to press long the right button. Alternatively it is possible
to select the breathing gas via the submenu GAS.
The following example shows a diving scenario where 2
breathing gases Air and NX50 are programmed.
56
Diving with the SEABEAR H3
SEABEAR H3
In this example, the diver is at 22.3 and the dive time is 32min 1 s. The estimated Time to
Surface TTS is 7min and the ceiling is 9m. The maximum depth is 22.3m.
The currently selected gas is Air. The MOD of Air is 66m. The second screen shows the
values in big digits and the third screen shows the decompression schedule. The current
ascent speed is 3m/min. Two decompression stops wit NX50 are required, one for 30s at
6m and another one for 50s at 3m.
57
Diving with the SEABEAR H3
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7.7 Gas switches NITROX
In this example there are 2 decompression gases programmed.
The decompression gas is NX50, which has a MOD of 22m. The
currently selected breathing gas is Air. As soon as the diver
ascends to 22m, a blinking NX50 symbol appears in the screen
meaning that the SEABEAR H3 suggests a gas switch to NX50.
If compass or deco schedule screen is selected, a blinking
“GAS” symbol is displayed to notify the user that a gas switch
should be performed.
After performing a gas change, after having changed the
breathing regulators, the user has to confirm the gas change on
the SEABEAR H3. This is a very simple task. A single long press
of the right button is sufficient to confirm the gas change and
change the selected gas.
Alternatively, it is also possible to enter the GAS submenu to
change the gas.
58
Diving with the SEABEAR H3
SEABEAR H3
7.8 Multi gas diving TRIMIX
If multi gas diving is unlocked, it is possible to use more than one breathing gas with your
SEABEAR H3. At maximum 8 different breathing gases can be programmed. If TRIMIX is
unlocked, then it is also possible to program TRIMIX gases, thus gases containing Oxygen,
Helium and Nitrogen. Like in multigas diving with NITROX, The SEABEAR H3 suggests the
best breathing gas for you, dependent on the depth and the fractions of the programmed
breathing gases. It suggests the breathing gas with the highest fO2 fraction that at the
current depth has still a pO2 of less than 1.6 bar.
The TTS prognosis as well as the decompression schedule is
calculated based on the programmed breathing gases.
If the selected breathing gas is different than the breathing gas
suggested by the SEABEAR H3, the SEABEAR H3 will suggest
the better breathing gas with a blinking indicator.
To select the breathing gas suggested by the SEABEAR H3, it is
sufficient, to perform a long press of the right button.
Alternatively, it is possible to select the breathing gas via the
submenu GAS.
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Diving with the SEABEAR H3
SEABEAR H3
The following example shows a diving scenario of 3 breathing gases. TX 15/40, NX 36 and
O2 are programmed. In this example, the diver is at 38.1m and the dive time is 18min 45s.
The estimated Time to Surface (TTS) is 32min 30s and the ceiling is 30m. The maximum
depth is 63.2m. Ascent speed is 10m/min.
The currently selected gas is TX 15/40 which means that the breathing gas contains 15%
O2, 40% Helium and 45% Nitrogen. The MOD of this breathing gas is 96m. The second
screen shows the values in big digits and the third screen shows the decompression
schedule. The current ascent speed is 10m/min.
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Diving with the SEABEAR H3
SEABEAR H3
7.9 Gas switches TRIMIX
In this example 2 decompression gases are programmed. One is
NX36, which has a MOD of 34m. The currently selected
breathing gas is TX15/40. As soon as the diver ascends to 34m,
a blinking NX36 symbol appears in the screen meaning that the
SEABEAR H3 suggests a gas switch to NX36.
After performing a gas change and having changed the
breathing regulators, the user has to confirm the gas change on
the SEABEAR H3. This is a very simple task. A single long press
of the right button is sufficient to confirm the gas change and
change the selected gas.
Alternatively, it is also possible to enter the GAS submenu to
change the gas.
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Diving with the SEABEAR H3
SEABEAR H3
The SEABEAR H3 uses the currently selected breathing gas for calculation
of the inert gas loadings. The selected gas does NOT automatically change.
It is required to select the suggested breathing gas manually with a long
press of the right button or selecting the suggested gas from the GAS
submenu.
Using the SEABEAR H3 for multigas diving requires a multigas unlock.
Using the SEABEAR H3 for TRIMIX diving requires the TRIMIX unlock.
Do not perform multigas diving without proper training
Do not use breathing gases other than air, in particular NITROX breathing
gases, unless you have been properly trained in using those and unless you
have a NITROX certification.
Do not use breathing gases other than air, in particular TRIMIX breathing
gases, unless you have been properly trained in using those and unless you
have a TRIMIX certification.
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
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Diving with the SEABEAR H3
SEABEAR H3
condition,which can vary from day to day. The SEABEAR H3 cannot account
for these variations. TRIMIX diving and diving beyond recreational limits
bears a higher risk for decompression sickness.
Do not use breathing gases other than air, in particular hypoxic TRIMIX
breathing gases with a O2 fraction of less than 20%, unless you have been
properly trained in using those and unless you have a TRIMIX certification.
The SEABEAR H3 suggests a breathing gas solely based on the MODs of
the breathing gases and the current depth, but does not account for isobaric
counter diffusion.
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Diving with the SEABEAR H3
SEABEAR H3
7.10
Ascend speed bar graph
The SEABEAR H3 calculates ascent and descent speed. A bar graph on the right side of
the display indicates the ascent and descent speed. A bar in blue color, starting on top, and
pointing down, indicates descent speed. The maximum ascend and descent speed that can
be indicated is 20m/min. The ascent speed is indicated with a bar graph starting on the
right bottom. The indicator is color- coded. Green for an ascent speed less than 7m/min,
yellow for an ascent speed above 7m/min and red for ascend speeds exceeding 12 min /
min. In the first example the blue bar graph shows a descent speed of 12m/min. The
second example shows an ascent speed of 6m/min, the third of 10m/min and the fourth of
18m/min.
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Diving with the SEABEAR H3
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Do not exceed an ascend speed of 10m/min.
Ascending faster than 10m/min increases the risk of decompression
sickness.
Do not descend faster than 20 m/min as this may increase the risk for inert
gas narcosis.
7.11
Dive profile
The SEABEAR H3 continuously logs the dive profile. The dive
profile screen is an alternative screen. Press the left or the right
button short to toggle screens until the dive profile is shown.
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Diving with the SEABEAR H3
SEABEAR H3
7.12
Inter gas loadings
The SEABEAR inert gas loading graph visualizes the compartment gas loadings. There are
16 bar graphs, one for each of the 16 compartments. The compartments are sorted from
left to the right, with the fastest gas loading displayed at the left and the slowest at the right.
The 16 compartments differ in terms of halftime and maximum allowed gas loading. For
more detailed information please refer to Alfred Buehlmann’s book about decompression
theory.
The maximum allowed compartment loading is visualized with a dashed red line. As soon
as the compartment gas loading supersedes the dashed red line, it turns red. In this case, a
decompression stop is required. Whether or not a compartment is on or off gassing can be
seen on the blue horizontal ambient pressure line. If one bar graph is higher than the
ambient pressure line, then this particular compartment is on gassing. If it is lower, it is off
gassing.
When diving with TRIMIX, the Helium and the Nitrogen loading are displayed above each
other. If the loading is below the maximum allowed value the Nitrogen loading is
represented as blue bar and the Helium loading as a blue bar. As soon as the maximum
allowed gas loading is superseded, the colors change to dark red and light red respectively.
66
Diving with the SEABEAR H3
SEABEAR H3
In this example the diver is at 5.6 m depth and performs a safety
stop. All compartment bar graphs are green, which means, that
there is no mandatory decompression stop required anymore.
The 8 faster compartments have inert gas loadings higher than
the ambient pressure line, which means that they are offgassing. The 8 slower compartments are below the ambient
pressure line, thus they are on-gassing.
In the second example compartments 2, 3 and 4 supersede the
red dotted line. Therefore a decompression stop is required
before surfacing. All compartments are below the dotted blue
ambient pressure line, which means that all are on-gassing.
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Diving with the SEABEAR H3
SEABEAR H3
This example visualizes gas loadings during the ascent in a
TRIMIX dive. The maximum depth was 63.1m and the current
dive time is 21min 15s. The 11 faster compartments all
supersede the red dotted line, thus decompression stops are
required. In fact, the ceiling is 30m. Only the 4 fastest
compartments are higher than the blue dotted ambient pressure
line, which means that only the 4 fastest compartments are
already off-gassing, while the remaining 12 slower
compartments are on- gassing. The ascend speed is 10m/min.
This manual does only describe the functionality of the SEABEAR H3. It is
not intended as guidebook for decompression, multigas of trimix diving.It is
the divers own responsibility to dive within the limits he is trained and
certified.
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Diving with the SEABEAR H3
SEABEAR H3
7.13
Acoustic alarms
The SEABEAR H3 has an inbuilt piezo-sounder to indicate potentially dangerous situations.
The acoustic alarm is triggered in the following situations:
- Remaining no decompression time NTD = 1 min
- Ceiling violation
- Ascend speed is greater than 18 m/min
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Diving with the SEABEAR H3
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7.14
Bottom timer mode
SEABEAR H3 has a bottom timer mode. To activate the bottom
timer mode, enter the sub menu MODES. Shortly press the left
button, navigate to the menu item bottom timer. Press and hold
the left button to activate the bottom timer mode.
The SEABEAR H3 does not provide any decompression
information while it is used in bottom timer mode.
The first example shows the SEABEAR H3 in bottom timer mode
during a dive. It shows 27min 12 s dive time, 39.2m maximum
depth, 24.7m average depth and a current depth of 30.6m. The
ascend speed is approximately 10m/min.
The second example shows the SEABEAR H3 in bottom timer
mode on the surface. It indicates maximum depth, average
depth and dive time. Additionally the surface interval is shown. In
this example the surface interval SI is 2h 36 min.
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Diving with the SEABEAR H3
SEABEAR H3
Be aware that during apnea mode and bottom timer mode no decompression
calculations are carried out.
Nevertheless, the SEABEAR H3 estimates the no fly time after a dive even
when the H3 was in bottom timer mode. This time was estimated by
assuming that the diver was breathing air during the dive. Be aware that this
is just a rough estimation. It is your responsibility to wait for sufficient time
before flying. After recreational multi day diving one should wait at least 24h
before flying. After technical diving wait at least 48h before flying.
Using the H3 in normal dive mode within 48h after using it in bottom timer
mode or apnea mode may result in incorrect decompression calculations.
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7.15
Apnea mode
The SEABEAR H3 is the ideal tool for breath-hold diving. It can
be switched into Apnea mode by entering the sub menu
MODES. From there navigate to apnea item and long press the
left button to activate apnea mode.
The apnea screen is similar to the screen in the bottom timer
mode. In this example it shows 34.6m current depth, 43.7m
maximum depth, 15.6m average depth and 2.58 min dive time.
On the surface it shows additionally the surface interval. The
interval is given in minutes and seconds. In this example, the
surface interval is 2min 36s.
The surface interval is the time that has passed since surfacing
after the last dive.
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Diving with the SEABEAR H3
SEABEAR H3
Be aware that during apnea mode and bottom timer mode no decompression
calculations are carried out.
Nevertheless, the SEABEAR H3 estimates the no fly time after a dive even
when the H3 was in bottom timer mode. This time was estimated by
assuming that the diver was breathing air during the dive. Be aware that this
is just a rough estimation. It is your responsibility to wait for sufficient time
before flying. After recreational multi day diving one should wait at least 24h
before flying. After technical diving wait at least 48h before flying.
Using the H3 in normal dive mode within 48h after using it in bottom timer
mode or apnea mode may result in incorrect decompression calculations.
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Diving with the SEABEAR H3
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7.16
Closed circuit rebreather mode
The SEBAEAR H3 supports closed circuit rebreather diving
(CCR unlock required). In the example screens the SEABEAR
H3 is set to constant setpoint SP2 1.1bar, Diluent Air.
7.16.1 CCR related settings
In this mode the decompression algorithm performs
decompression calculation with the selected pO2 setpoint and
the currently selected diluent gas. Note: there is an extra gas
table for diluents gas in CCR/CCR GAS TABLE. Up to 8 diluent
gases can be programmed. 2 setpoints SP1 and SP2 can also
be programmed/edited in the CCR menu. During diving it is
possible to edit and change diluent gases.
7.16.2 Selecting a setpoint
The 2 setpoints SP1 and SP2 and also open circuit mode
(bailout) can be selected in the CCR menu.
Alternatively it is possible to long press the right button to toggle
between setpoint 1, setpoint 2 and open circuit mode.
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Closed circuit rebreather diving requires proper training. Do not dive closed
circuit rebreathers without a rebreather certification for the rebreather you are
intending to dive. Do not dive beyond the limits you are certified for.
Do not use setpoints lower than 0.5 bar or larger than 1.6 bar.
Currently no CNS or OUT warning is implemented in the SEABEAR H3
Always monitor the pO2 or your rebreather
Be aware that the H3 is performing the decompression calculation according
to a fixed pO2, but is not able to measure the pO2 inside the loop. If the pO2
inside the loop is different, decompression calculation will most likely be
wrong and decompression sickness may occur.
7.17
After Diving
After each Dive, rinse the SEABEAR H3 in fresh water and let it dry. Be sure, that the
SEABEAR H3 is dry and clean before connecting it to a USB cable.
After diving, rinse the SEABEAR H3 in fresh water to avoid corrosion.
Before connecting the SEABEAR H3 to a USB cable, make sure that the
USB connector on the SEABEAR H3 is clean and dry. Failure to do so may
lead to corrosion of the contacts.
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7.18
Flying after Diving
The SEABEAR H3 has integrated algorithm to calculate the compartment desaturation time
and the no fly time. The No Fly time is shown on the surface screen.
Do not fly directly after a dive. Flying after diving may cause decompression
sickness.
Wait at least 24h after the last dive before flying.
It is your own responsibility to avoid flying directly after diving. No
decompression algorithm can totally eliminate the risk of decompression
sickness when flying after diving, even if the no flight times indicated by the
dive computer are obeyed.
76
/Logbook
SEABEAR H3
8 Logbook
The SEABEAR H3 stores all dive data on the internal memory.
To access the logbook enter the menu by pressing and holding
the left button. Navigate with short presses of the left button to
the menu item Logbook. Press and hold the left button to enter
the logbook.
The logbook screen shows the most significant data of the dives.
The current example shows dive number 55, date February 2nd,
2014, beginning of the dive 15:13:25. The maximum depth was
47.4m, average depth was 16.2m, the dive duration was 80min
and 35s and the minimum water temperature was 16.5°C. The
breathing gas was air and the Gradient factors were set to GF
30/80.
Shortly press the left button to navigate to the dive before.
Shortly press the right button to navigate to the next dive.
Press and hold the left button to display the depth profile.
Press and hold the right button to exit the logbook mode.
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Dive data download
SEABEAR H3
9 Dive data download
9.1 Immediate download with NFC
After a dive, the dive data of the last dive can directly be uploaded to a mobile device. It is
required to enable NFC on your mobile phone. Place the mobile device above the
SEABEAR H3, and the dive data of the last dive will be automatically transferred to the
mobile device. Pairing of the devices is not required. A dedicated SEABEAR App is
available, which allows viewing dive data as well as sharing them in social networks.
It is also possible to view the last dives in the menu LOGBOOK. Alternatively one can
download the dive data to a PC.
If you want to download the data of the last dive to a mobile device, make
sure that the mobile device is equipped with an NFC interface and that the
NFC interface is enabled.
Uploading the dive data from a mobile device to Facebook requires an
internet connection.
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Dive data download
SEABEAR H3
9.2 PC Mode
Firstly, connect the USB cable to the SEABEAR H3. Then connect the cable to a USB port
of your PC. Next, activate the PC mode on the SEABEAR H3 by selecting the menu item
PC MODE in the main menu.
Now the SEABEAR H3 is automatically recognized as mass storage device. It is not
required to install any additional drivers. Use the SEABEAR Diveapp to view the dives
stored on the SEABEAR H3. The latest version of the Diveapp can be downloaded
from the SEABEAR website www.seabear-diving.com.
Alternatively, it is possible to access the SEABEAR H3 with any file explorer. The
SEABEAR H3 appears as local drive in your file explorer. Search for a drive with the name
SEABEAR. There are several files:
LOGBOOK.txt contains a summary of all the dives done with your SEABEAER H3
Detailed information about each dive can be found in the .CSV files. There is one file for
each dive.
BLACKBOX.DAT contains factory information about the SEABEAR H3. It is an encrypted
file which can only be read by SEABEAR technicians. Do not attempt to read or modify this
file.
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Dive data download
SEABEAR H3
info.txt is an optional file that may contain personal information about the diver.
NOTE: Before leaving the PC mode, correctly eject the SEABEAR H3 you’re your
PC. Therefore click 'Safely Remove Hardware' in the System Tray of Windows
before leaving the H3 PC mode. This is necessary to ensure that Windows is not
busy reading / writing when you end the PC mode, as this may result in
corrupted data on the SEABEAR H3.
Do not delete the file BLACKBOX.DAT. It contains encrypted information
about the SEABEAR H3 that can be read only by SEABEAR technicians.
Before connecting the SEABEAR H3 to a USB cable, make sure that the
USB connector on the SEABEAR H3 is clean and dry. Failure to do so may
lead to corrosion of the contacts.
Exiting PC mode without correctly ejecting the SEABEAR H3 from your PC
may lead to a corrupt file system, which further may slow down the H3 during
start up but also during write and read operations, and in the wort case may
lead to one or multiple resets of the SEABEAR H3.
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Dive data download
SEABEAR H3
9.3 Customizing the SEABEAR H3
It is possible to add personal information to the surface screen of the SEABEAR H3.
Therefore connect the SEABEAR H3 to a PC and enter PC mode through the menu.
Open a file explorer and search for the SEABEAR drive. The SEABEAR H3 appears as
a local drive in your file explorer. Create a text tile in the root folder of the SEABEAR
H3. Rename the file to user.info
The file can contain 3 lines of characters and numbers, but at maximum 14
characters/numbers per line.
The text will be displayed after the next restart of the SEABEAR H3.
81
Outdoor modes
SEABEAR H3
10 Outdoor modes
The SEABEAR H3 has an inbuilt compass and a precise pressure sensor which can also be
used as an altimeter.
In watch mode, the screen can be switched between watch screen, compass screen and
altitude profile. The altitude profile is only available if LOG ALTITUDE is activated and the stop
watch is running. Switching between the screens in watch mode is done with a short press of
the left button.
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Outdoor modes
SEABEAR H3
10.1
Stop watch
The SEABEAR H3 features a stop watch, In watch mode, press
the right button shortly to start or stop the watch. Press the right
button long to reset the watch.
10.2
Altitude logging
The SEABEAR H3 is capable of logging the altitude. Therefore it
is necessary to enable this feature first in the menu
SETTINGS/LOG ALTITUDE. When altitude logging is enabled,
as soon as the stop watch is running, altitude is recorded. The
altitude profile is shown on a separate screen.
When altitude logging is activated, the altitude profile screen also
shows minimum and maximum altitude as well as cumulated
ascent and cumulated descent.
83
SEABEAR H3
As soon as the stop watch is reset, the altitude profile is saved in the internal memory in a
file (ALT_XXXX.csv), whereas each recording is saved in a separate file. Similar to
accessing the dive files, it is possible to access also the altitude files by simply connecting
the SEABEAR H3 to a PC and entering USB mode.
The altitude is calculated from the atmospheric pressure. If the weather
changes, this usually also induces atmospheric pressure changes, thus the
altimeter may show incorrect values. During hiking or other outdoor activities
frequently adjust the altimeter settings at points with known altitude.
Iron or magnets may influence the compass and cause erratic readings
84
Care and Maintenance
SEABEAR H3
11 Care and Maintenance
The SEABEAR H3 is built from high quality seawater resistant materials and features an ultra
scratch resistant sapphire glass. The SEABEAR H3 is designed to withstand diving harsh
conditions. However, you should still protect your SEABEAR H3 from shock, excessive
temperatures, chemicals and mechanical tampering.
After diving, rinse the SEABEAR H3 in fresh water to avoid corrosion.
Before connecting the SEABEAR H3 to a USB cable, make sure that the
USB connector on the SEABEAR H3 is clean and dry. Failure to do so may
lead to corrosion of the contacts.
Protect your SEABEAR H3 during transportation and from mechanical shocks
and excessive temperatures.
Never try to open or repair the SEABEAR H3 yourself.
85
Care and Maintenance
SEABEAR H3
The SEABEAR H3 should be inspected for mechanical damage and cracks
before, and after each dive to ensure it is working properly.
Failure to observe the above precautions leads to loss of warranty and any product-related
liability of Seabear Diving Technology.
86
Specifications
SEABEAR H3
12 Specifications
12.1
General specifications
Maximum operational depth: 130m
Full color OLED Display: 160 x 128 pixel, RGB, 1.7”
Digital Pressure Sensor, 130 m rated
Depth resolution: 0.1m
Temperature resolution 0.1°C
Imperial / metric mode
Digital Compass, tilt compensated
USB interface
NFC Interface
Housing made from stainless steel, 316L
Ultra scratch resistant Sapphire glass window
87
Specifications
SEABEAR H3
12.2
Decompression algorithm
Buehlmann ZH-L16 decompression model
16 compartments for Nitrogen, 16 compartments for Helium
Unlock code required for multigas diving
Unlock code required for TRIMIX diving
Gradient factors (4 pre set values)
No-fly time indicator
Automatic altitude adaption
8 gases for open circuit diving
8 diluent gases
2 setpoints for closed circuit rebreather diving
88
Specifications
SEABEAR H3
12.3
Electrical Specifications
32 bit microprocessor
Rechargeable Li Ion battery, 4.2V, 400mAh
Rechargeable via USB, maximum charge current 400mA
Autonomy in standby mode: 1y
15h operation during diving
Charge time 2-3 h
12.4
Dive data storage
32MBit storage capacity
Dive data storage interval in dive mode: 5s
Dive data storage interval in free-diving mode: 1s
Memory accessible via USB (SEABEAR H3 is recognized as Mass Storage Device)
NFC Tag capability – instant download of dive data to a mobile phone without pairing
89
Specifications
SEABEAR H3
12.5
Special software features
2 dive screens
Dive/apnea/bottom timer/CCR mode
Digital compass screen
3 pre-programmed headings
Logbook
Altitmeter
Altitude logging
12.6
Testing and validation
The SEABEAR H3 was tested according to the European Normative EN13319. About
10000 simulated dives were carried out in the laboratory and in the hyperbaric chamber to
validate the correct implementation of the decompression model. The code was validated
according to Eric C Bakers implementation of the Buehlmann ZH-L16 algorithm with
Gradient Factor extension.
90
Troubleshooting
SEABEAR H3
13 Troubleshooting
Problem: The SEABEAR H3 does not switch on
Charge the SEABEAR H3 for at least 2h. If the SEABEAR H3 is completely discharged, it
loses all decompression information and is reset to default settings. It should restart shortly
after the charging has started.
Problem: The SEABEAR H3 is connected to a USB charger but does not charge
Check the cable and the connector pins for corrosion and dirt. Clean if possible.
Problem: The SEABEAR H3 is outside the water, but it is in dive mode and the displayed
depth is greater than 0.5m.
This can happen when the SEABEAR H3 was exposed to a sudden drop of atmospheric
pressure. In this case it is necessary to reset the SEABEAR H3. Simply attach the USB
cable to the SEABEAR H3 and plug it in a charger. The SEABEAR H3 will be reset after a
few seconds. All decompression information and user settings are lost after a reset.
91
Firmware update
SEABEAR H3
14 Firmware update
Download the latest firmware for your product from the SEABEAR website. Connect the
SEABEAR H3 to your PC and enter PC mode in menu/PC MODE. Search in the file
explorer for the SEABEAR drive. Unpack the firmware file to the SEABEAR drive. Exit USB
mode and activate STANBY mode in menu /STANDBY.
The SEABEAR H3 is automatically updated with the firmware.
All decompression information are lost after a firmware update.
Avoid a firmare update between repetitive diving. Performing a firmware
update between dives will cause the SEABEAR H3 to loose decompression
data and the remaining compartment inert gas loadings from the previous
dives, thus the no decompression times and decompression calculations for
the next dives may be incorrect.
92
Limitations of Liability
SEABEAR H3
15 Limitations of Liability
WITH THE PURCHASE OF THE SEABEAR H3 YOU HEREBY AGREE TO THE FOLLOWING EXCLUSIONS AND
LIMITATIONS OF SEABEAR’S LIABILITY TO YOU.
YOU AGREE AND UNDERSTAND THAT SCUBA DIVING IS A HIGH RISK, POSSIBLY LIFE-THREATENING
ACTIVITY AND THE USE OF THE SEABEAR H3 IS IN NO WAY A SUBSTITUTE FOR PROPER SCUBA TRAINING
AND CERTIFICATION.
BECAUSE OF THE NUMBER OF VARIABLES AND THE VARYING DEGREES TO WHICH THEY MAY AFFECT
INDIVIDUALS ENGAGED IN SCUBA DIVING, SEABEAR DOES NOT WARRANT OR GUARANTEE THAT USE OF
THIS PRODUCT WILL PREVENT DECOMPRESSION SICKNESS, OR ANY OTHER CONDITION, OR INJURY
INCURRED WHILE USING THIS PRODUCT.
THESE INFLUENCING VARIABLES MAY INCLUDE, BUT ARE NOT LIMITED TO, DEHYDRATION, OBESITY,
AGE, OLD INJURIES, OR OTHER PHYSICAL CONDITIONS OF THE DIVER, OR ENVIRONMENTAL EXTREMES
OF HEAT OR COLD, OR POOR TRAINING, OR DIVING PRACTICES, ANY OF WHICH MAY PROMOTE THE
ONSET OF DECOMPRESSION SICKNESS OR OTHER HARMFUL EFFECTS.
THE SEABEAR HEAD UP DIVING COMPUTER WAS TESTED ACCORDING TO RELEVANT NORMATIVES
EN13319 AND EN250 AND WAS EVALUATED IN NUMEROUS TEST DIVES. HOWEVER THERE MAY STILL BE
ERRORS IN THE SOFTWARE, THAT WERE NOT IDENTIFIED YET AND THAT MAY LEAD TO MALFUNCTIONS
OF THE SEABEAR H3. THEREFORE, SEABEAR SUGGESTS TOALWAYS CARRY AND USE A BACKUP DIVE
COMPUTER OR A DIVE TABLE IN COMBINATION WITH A DEPTH GAUGE AND A WATCH.
YOU AGREE THAT YOU UNDERSTAND AND ACCEPT ALL RISKS ASSOCIATED WITH DIVING, AND THAT
SEABEAR, ITS ELECTED AND APPOINTED OFFICIALS, EMPLOYEES, VOLUNTEERS OR OTHERS WORKING
93
Limitations of Liability
SEABEAR H3
ON BEHALF OF SEABEAR ARE NOT LIABLE TO YOU OR ANY OTHER PERSON, INCLUDING YOUR HEIRS,
EXECUTORS OR PERSONAL REPRESENTATIVES, FOR ANY LOSS, DAMAGE, COST, EXPENSE OR CLAIM
ARISING OUT OF, CAUSED BY OR RELATING TO YOUR PERSONAL INJURY OR DEATH WHILE DIVING, EVEN
IF YOUR PERSONAL INJURY OR DEATH IS CAUSED, IN WHOLE OR IN PART, AND DIRECTLY OR
INDIRECTLY, BY THE PURCHASE OF THE SEABEAR H3 OR YOUR USE THEREOF, OR ARISING FROM
BREACH OF THE WARRANTY, BREACH OF CONTRACT, NEGLIGENCE, STRICT TORT, OR ANY OTHER
LEGAL OR EQUITABLE THEORY, EVEN IF SEABEAR KNEW, OR SHOULD HAVE KNOWN OF THE LIKELIHOOD
OF SUCH DAMAGES, AND REGARDLESS OF WHETHER OR NOT THE HEAD UP DIVING COMPUTER
FUNCTIONED PROPERLY OR WAS DEFECTIVE IN ANY WAY. SEABEAR SHALL NOT BE LIABLE FOR DELAY
IN RENDERING SERVICE UNDER THE LIMITED WARRANTY, OR LOSS OF USE DURING THE TIME THE
PRODUCT IS BEING REPAIRED.
YOU HEREBY IRREVOCABLY WAIVE AND RELEASE SEABEAR, ITS ELECTED AND APPOINTED OFFICIALS,
EMPLOYEES, VOLUNTEERS OR OTHERS WORKING ON BEHALF OF SEABEAR FROM ANY LIABILITY OR
OBLIGATION TO YOU OR YOUR HEIRS, EXECUTORS OR PERSONAL REPRESENTATIVES FOR ANY LOSS,
DAMAGE, COST, EXPENSE OR CLAIM ARISING OUT OF, CAUSED BY OR RELATING TO YOUR PERSONAL
INJURY OR DEATH WHILE DIVING, EVEN IF YOUR PERSONAL INJURY OR DEATH IS CAUSED, IN WHOLE OR
IN PART AND DIRECTLY OR INDIRECTLY, BY THE SEABEAR H3 OR YOUR USE OF THE SEABEAR H3, OR
ARISING FROM BREACH OF THE WARRANTY, BREACH OF CONTRACT, NEGLIGENCE, STRICT TORT, OR
ANY OTHER LEGAL OR EQUITABLE THEORY, EVEN IF SEABEAR KNEW, OR SHOULD HAVE KNOWN OF THE
LIKELIHOOD OF SUCH DAMAGES, AND REGARDLESS OF WHETHER OR NOT THE SEABEAR H3
FUNCTIONED PROPERLY OR WAS DEFECTIVE IN ANY WAY.
YOU MUST READ AND ACCEPT THE AGREEMENT FOR ALL LIMITATIONS AND EXCLUSIONS OF SEABEAR’S
LIABILITY TO YOU.
94
Contact
SEABEAR H3
16 Contact
SEABEAR GmbH
Peter Tunner Strasse 19
A-8700 Austria
Homepage:
http://www.seabear-diving.com
News:
https://www.facebook.com/seabear.diving
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Contact
SEABEAR H3
96
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