North Edge AQUA User manual

1. Safety tips-please read them carefully before using
⚠Please ensure that you fully understand the diving equipment and
the use of this product,as well as the meaning of the display content
on the watch. If you have any questions about this product, be sure
to contact the NORTH EDGE dealer before diving and using it.
Remember, your safety is your responsibility, please pay attention to
all the details, and do not neglect any physical discomfort!
⚠Be sure to read and understand the entire manual. Any confusion
or negligence, failure to follow the manual exactly, or failure to follow
the normal operating procedures can lead to serious injury or even
death.
⚠The NORTH EDGE dive watch is designed for recreational diving
only. North Edge is a strong advocate that the device should not be
used for commercial or professional diving. Any person engaged in
commercial or professional diving, often exposed to more than the
design of this watch depth and environment, is likely to lead to
decompression illness (DCI) .
⚠This product can not replace the formal diving education and
training. This product is intended for use only by divers who are
trained by a certified professional diver and know how to operate
diving equipment.
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⚠Every dive can carry the risk of decompression illness. Even if you
follow a dive schedule or a dive computer schedule, a dive computer
can not anticipate and measure changes in your physiology.
Therefore, divers should try to keep within the limits indicated by the
instrument to engage in activities.
⚠It is recommended that you consult your physician before diving.
There is no algorithm, Formula, theorem, dive calculator, or dive
planner in the world that can completely eliminate the risk of
decompression illness or oxygen poisoning. The physical condition of
the individual may change from time to time due to environmental
factors, so this product can not completely help you avoid diving
injury. The best way to avoid diving injuries is not to dive.
⚠The test depth of this product is 100m/330ft. This product is only
for recreational diving. It is strongly recommended that the diver
should not exceed the maximum diving depth of 40m/130ft (air
diving) , or the maximum allowable depth of your training. Please
note that your safety is in your own hands and your own
responsibility.
⚠Divers are prohibited from wearing this dive computer watch for
dives that exceed the nondecompression limit (NDL) and require
decompression. Once the computer indicates that the NDL limit has
been exceeded, you should immediately stop the dive, start the
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⚠This product is not guaranteed to be fully functional at all times,
please be sure to bring depth meters, pressure gauges, timers and
watches and other standby instruments, and always compare your
diving plan.
⚠This product can help calculate the non-decompression limit and
other information, but does not mean you can skip the diving plan
and other procedures, if your diving plan is more conservative, please
make your diving plan a priority.
⚠The screen shows that flights should be avoided during no-fly.
You should also check to see if the no-fly restrictions have been lifted
before boarding. Taking a flight or going to high altitude areas during
a ban could significantly increase the risk of developing decompression
⚠In order to ensure the integrity of the display content of this
product, each time before launching into the water, the product
should be activated to check its function, also make sure that the
battery level, oxygen level setting, personal setting, and other
adjustments are in line with your dive plan. (This product is not
suitable for high altitude diving )
ascent and proceed to the safe stop procedure. Please keep an eye
on the speed of ascent, the depth and the duration of the stay, and
keep an eye out for flashes, warning signs, and arrowheads.
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⚠Divers are not allowed to exchange or share computer watches
with each other. The diving information of the meter must be exactly
the same as that of the original user. The internal information of the
meter can not be transferred to the diver who has not worn it all the
way,and can not be used for subsequent diving.
⚠If the watch is left on the surface of the water and does not dive
with the diver, the watch can not provide accurate data for
subsequent dives. Any diving that you do before you first turnon the
meter can lead to misleading information.
⚠Be sure to personally confirm the oxygen concentration in each
cylinder used and input it into the computer table. Do not dive with a
high oxygen cylinder if the contents of the cylinder can not be
personally identified. Failure to personally verify the contents of the
cylinder andenter the correct oxygen concentration on the computer
meter will result in incorrect diving plan data.
⚠The input value of the oxygen concentration percentage of this
computer table only accepts integers. Do not carry the decimal point
by yourself. For example, 32.8% oxygen input 33% . Carry will lead to
the underestimation of nitrogen, affecting the calculation of
decompression.If you want to make adjustments to your computer
illness. Please review the recommendations of the diver alert network
(DAN) .
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2. How to guide
2.1 Maintenance
⚠This computer meter is not applicable to areas above 3,00m/
10,00ft. Please make sure that your settings are correct and in line with
your dive plan, such as the oxygen ratio of the gas used. Failure to
correctly set the function of personal adjustment setting may result in
wrong calculation of diving plan and diving information, which will
seriously lead to the danger of life.
⚠The device contains a battery. To avoid the risk of fire or
combustion, do not attempt to disassemble, crush, puncture, short
circuit external contacts, or throw the device into fire or water. If the
device is damaged, please dispose of it properly or recycle it.
1. Storage: please place the product in a cool place, do not place in
dangerous environment, extrusion, pressure, high temperature, low
temperature, high humidity, easy to fall, hard hit, etc. .
2. Do not remove the watchcase by yourself
watch more conservative, use personal
adjustments to change the decompression calculation to change the
calculation of your oxygen exposure.
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2.2 how to use
1. Before use: Please make sure the power supply is sufficient
2. Do not give the product to children under 8 years of age.
3. This product is made of non-toxic materials. If any discomfort
occurs during use, please remove the product and seek professional
medical advice.
4. Wear the product on your wrist and be aware of the risks
associated with wearing it in a way that suits you or is comfortable
for you.
5. Before launching, please make sure that the product settings are
in line with your dive plan. In the meantime, I suggest you stick to
your dive plan.
3. After use: especially after use under water or sea water, be sure to
use clean water to soak and rinse. The cleaning method is:
remove the watch from the hand, gently grasp the strap and place
the entire product in the water.
Soak in water for about three to five minutes, then shake gently.
Let the water flow into the slit to clean the salt.
If there are obvious stains, gently rub with your hands.
Do Not Bang in the Water.
Do not use a strong water column.
Do not use any cleaning solvent other than water.
After cleaning, put it back on your hand or put it in a cool place.
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3, Full display and identification, Key functions
3-1. Full display and description:
6. Under Water, it is your responsibility to constantly verify the data
displayed on the product.
7. If you do not understand the information please be sure to contact
your coach, the purchase of dealers and business representatives or
to ask us.
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Upper area
Middle area
Below area

3-2 Button function:
3-3 Features:
S1 key: short press backlight, long press lock screen&lock key
S2 key: Up/Down/OK, long press enter settings
S3 key: Exit/Return
S4 key: switch below area & value settings + 1
1. Time display function, display time, minute, second, month, day,
week, 12/24H, initial value is（2020-1-01 12:00 00 WED ）
2. Alarm function
3. Countdown function, the initial value of (0:00.00,12:00(0FF)
4. Stopwatch function, the initial value is (0:00’000, (0FF)
5. Step counting, exercise time, pace, mileage, calories consumption
6. Altitude, relative altitude
7. Air pressure curve, air pressure, air pressure curve view (24H)
8. Exercise time record, movement relative height view.
9. Diving function, one is scuba diving, one is free diving. Scuba diving
with NDL time,depth,Temperature,diving speed.
10. Diving log (99 records)
11. Compass calibration function
12. Low-power reminder
13. Backlight function
14. 4 key functions
15. Use the Battery CR2450
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Mode conversion
Description of mode selection:
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3-4 Time mode
Key function:
[S1] key: light up the backlight
[S2] key: scroll up, scroll up menu; scroll down, scroll down menu
short press to enter setting function; when long press S2 key, scroll
bar lights up, then enter the settings interface.
[S3] key: exit
[S4] key: invalid
Time mode conversion interface description:
Notes:
Function selection interface (top spin/down spins 2): time → altitude
→ air pressure → compass → scuba diving → free diving → stepper
→ dive log → world time → Time (spin back and forth to switch)
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Time Interface (button function) :
Notes (time interface) :
1. The upper area shows the week and date.
2. Show the current time in Central
3. the following areas are shown: seconds, stopwatch, countdown,
year, temperature.
4. Press S4 key to switch the function display, when switching to the
timing interface, press S2 key to start/stop timing, long press S4 key
to reset.
5. In any functional interface, more than 1 minutes without key
operation, the watch automatically return time interface. If the user
needs to spend a lot of time at altitude or below the air pressure
interface, long press the S1 key to lock the screen.
Press [S1] key: short press to light the backlight, long press to lock
screen key.
Press the [ S2] key: spin up, not valid; spin down, not valid; short press
start/pause to time when the lower area displays the timer interface;
when long press the s 2 key, the scroll bar lights up, and then enters
the settings interface.
Press [S3] : exit
Press [S4] key: short press switch function display: second →
stopwatch → countdown →year → thermometer, long press reset.
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3-5 Altitude mode
Altitude setting instructions:
High-level interface (button function) :
1.Press [S1] key: short press to light the backlight, long press to lock
screen key.
2.Press [S2] key: Up Spin, invalid; down spin, invalid; the lower display
time interface, short start/pause time; long press to enter the settings
interface-menu.
3.Press [S3] : Exit
4.Press [S4] key: switch the function display: timing function → relative
sea wave height →temperature → timing interface, long press reset.
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3-6 Air pressure mode
Air pressure display interface (key function) :
1.Press [S1] key: short press to light the backlight, long press to lock
screen key.
2.Press [S2] key: spin up, invalid; spin down, invalid; short press, enter
function,Long press the S2 key, the scrollbar lights up, and you enter
the settings screen.
3.Press [S3] : exit.
4.Press [S4] key: switch function: sea level pressure → temperature →
altitude.
Note (barometric display interface) :
1. The upper area displays the current barometric pressure
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3-7 Compass Mode
2.The middle area shows the pressure curve for the last 24 hours (48
bars, 1 bar every half hour)
3.The lower area shows sea level pressure, temperature, and altitude
4. Air pressure display icon
5. In any functional interface, more than 1 minutes without key
operation, the watch automatically return time interface. If the user
needs to spend a lot of time at altitude or below the air pressure
interface, long press the S1 key to lock the screen.
Compass Interface (key function) :
1.Press [S1] key: short press to light the backlight, long press to lock
screen key.
2.Press [S2] key: spin up, invalid; spin down, invalid; short press to
enter function,Long press the S2 key, the scrollbar lights up, and you
enter the settings screen
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3.Press [S3] : exit;
4.Press [S4] : Long Press to enter Compass Correction mode.
Notes:
1. The upper area shows the week and current time
2. Display the azimuth angle in the middle area
3. Display the position on the lower area
4. Display icons in Compass Mode
5. （ ）Point north, always point north;
6. In any functional interface, more than 1 minutes without key
operation, the watch automatically return time interface. If the user
needs to spend a lot of time at altitude or below the air pressure
interface, long press the S1 key to lock the screen.
Compass calibration mode
Compass calibration notes:
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(button function) :
1.Press [S1] key: light the backlight, long press to lock screen key.
2.Press [S2] key: spin up, invalid; spin down, invalid; short press, invalid;
3.Press [ S3] : exit
4.Press [S4] : invalid
Notes:
1. In compass mode, Long Press S4 to enter compass calibration mode,
the upper display “Rotate”. Central display “Keep level.”
2. Place the watch horizontally, rotate it clockwise for a few times and
then automatically return to compass mode after the compass has
been adjusted.
3, In any functional interface, more than 1 minute without key
operation, the watch automatically return time interface.
4. If the user needs to spend a lot of time at altitude or below the air
pressure interface, long press the S1 key to lock the screen.
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3-8 Pedometer mode
Pedometer interface (button function) :
1. Press [S1] : short press to light the backlight; long press to lock
screen key.
2. Press [S2] key: Spin up, invalid; spin down, invalid; Short Press S2
to start pedometer (pedometer icon) , Short Press S2 to stop
pedometer (pedometer icon off) ; when long press S2 key, scroll bar
lights up, then enter the settings interface.
3.Press [S3] : exit;
4.Press [S4] : Long Press reset step; short press to switch --
exercise time -- exercise distance- calories
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3-9 Dive Log Mode
3-10 World time mode
Dive log mode interface (button function) :
1.Press [S1] : short press to light the backlight; long press to lock
screen key.
2.Press [S2] key: spin up, invalid; spin down, invalid; short press to
enter function,Long press the S2 key, the scrollbar lights up, and you
enter the settings screen
3.Press [S3] : exit;
4.Press [S4] : invalid;
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3-11 Free diving mode
World time mode interface (button function) :
1. Press the [S1] key: short press to light the backlight; long press the
S1 to lock screen key.
2. Press [S2] key: spin up, invalid; spin down, invalid; short press, enter
function, Long press the S2 key, the scrollbar lights up, and you enter
the settings screen
3. Press [S3] : exit;
4. Press [S4] : invalid;
Free diving interface (button function) :
1. Press [S1] key: short press to light the backlight, long press to lock
screen key.
2.Press [S2] key: spin up invalid; spin down invalid; short press invalid
3.Press [S3] key: short press invalid, Long Press exit.
4.Press [S4] : invalid.
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