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Battery Change, Waterproof Test & Test Dive
It is strongly advised that only authorized battery kits are used when replacing batteries in Suunto dive
instruments. Not all batteries perform the same and the batteries supplied in these kits have been tested
for suitable performance. The kits include all the parts that should be replaced once the battery compartment
has been opened.

Battery Change, Waterproof Test & Test Dive

Suunto Diving Computer battery Replacement & KIts

Suunto Battery Replacement
How long will the battery in my dive computer last?
Battery replacement should be performed every two years or more often depending on the dive activity. Some lithium batteries may exhaust unexpectedly, which cannot be tested in advance. The life expectancy at 20°C (68°F) is the following: 100 dives/year -> 2 years; 400 dives/year -> 1 year.

At Waterfront Scuba all work is carried out by qualified service technicians and all computers are pressure tested before being returned to the Customer

Suunto General
I would like to know if I can change the meters and Celsius to feet and Fahrenheit.
This depends on the computer model. All newer models have user changeable units.
Can I use the same dive compass all over the world?
No. Suunto compasses are balanced for five geographical zones. Before you purchase a compass you should define the area it will be used in.
Can I remove any previous dives from my computer?
No, but you can reset the maximum depth using the Suunto Dive Manager and PC interface.
How can I define the manufacturing date of my computer?
For newer products you can see it from serial number. The first digit represents the year, the second and third digits represent the week. A product with the serial number 91200000 was manufactured in week 12 of 2009.
How can I protect my dive computer's display from getting scratched?
During diving the display of the dive computer is somewhat vulnerable for getting scratched. But there are accessories available for protecting the display. There is a specific scratch guard for Suunto D4, D6 and D9 that is designed to help their displays from getting scratched. This scratch guard comes in the package or it can be purchased separately from your nearest retailer. The scratch guard is easy to attach and also to replace if needed
There are also plastic display shields available for Suunto Stinger, D3 and Mosquito that help to protect the display of the dive computer. These shields can be purchased separately and they are also easy to use.
How to set up Nitrox mode in the Suunto dive computer?
We recommend to round down the calculation of nitrogen to the nearest fraction; for example 32.5% should be programmed in the Suunto dive computer as 32%. As the oxygen content could be greater than the preset value, the computer calculates the oxygen toxicity using 1 percent higher than the value in the computer. For example, 32.5 % is now set to 32% for nitrogen, and therefore 33% is used for the oxygen calculation (1.6/0.33=4.8 bar) giving an MOD of 38m. This is for safety reasons.
Can you explain the difference between the simulator and the plan function in the dive computer?
The simulator allows you to do a "dive" (or several "dives") on dry land. You can simulate your dive profile minute by minute and see what the actual display would be like if you did a real dive. The plan function will show you the No Dec times for different depths before a dive. The plan function will also take into account your previously made dives and therefore the no dec times for different depths may be shorter if you have recently been diving with the computer.
Why does the display get slow in cold temperature?
The liquid crystal material of the LCD solidifies in cold temperature. This is typical for all LCD displays.
Sometimes a warning triangle appears in my dive computer.
Does it appear because the medium tissues are still saturated?
The warning triangle indicates that you should extend the surface interval. This is prompted when you are subject to an excessive amount of micro bubbles and does not necessarily relate to tissue saturation levels.
Do you have a product that would enlarge the display of the dive computer?
Unfortunately there is no accessory that would make the digits essentially bigger. The only existing product is the normal display shield available for the computers.
I have a Suunto dive computer.
During a recent dive it was consistently showing depths that were 2 meters too shallow. This was first noticed during a safety stop in which I was deeper than I should have been. On the following dive the depths were accurate again.
What could have happened?
It sounds like the water contact was not activated immediately but at 2 meters depth. In this case the depth sensor would read the pressure at 2 meters as zero depth and that's why the computer may have shown 2 meters too shallow all through the dive. When the dive computer is being activated it measures the surrounding pressure as reference pressure. For example air pressure changes can sometimes cause that the unit shows 0.1 meters as depth a few seconds before it goes to 0 meters, when it is being activated. It is recommended to activate the unit manually before a dive, even though there is an automatic water contact on the computer. The water contact may not always activate immediately after inserting the computer into the water and in this case the computer would read the wrong surrounding pressure as zero depth
What are the differences between the RGB50 and the RGB100?
The RGB50 option is a little less conservative and strict than the RGB100 and therefore also less safe. The RGB50 is especially intended for trained divers with a lot of experience. The "50" stands for 50% as opposed to "100" 100% RGBM reduction. So if the RGBM100 gives a 20% reduction in the m-values (maximum surface gradient) the RGBM50 would only use half, i.e. a 10% reduction.
The hose that I got with the computer (with quick release) is marked with 5000 PSIG pressure tested. Is the hose tested to only 5000PSI (345 BAR)? The next time I will dive I will use a pressure of around 350 bar in a 300 bar cylinder, so my question is: can the dive-computer (with the quick release) handle a working pressure of 350 bar from the cylinder?
The maximum allowed pressure for the dive computer's pressure sensor and the QR is 360bars. The standard hose has a max pressure of 360bars/5000psi. There are other HP hoses on the market (made of Kevlar that is much stiffer) that have burst pressures of about 1400 bar. The tread is standard so it is no problem changing hose.
Is there an option to turn off the cylinder pressure alarm in the dive computer? ?
The cylinder pressure alarm cannot be turned off by the user. When the cylinder pressure reaches 50 bar (725 psi) there will be three double beeps and the cylinder pressure will also start blinking.
Can I switch modes between dives i.e. make two dives using air, third dive using EAN (Nitrox), can the computer deal with this?
It is possible to switch from Air to Nitrox mode but not the other way around until the no-fly time has counted down. The reason you cannot switch back and forth is that there is no CNS/OTU display in Air mode, although there is CNS/OTU uptake. If you could switch back and forth freely it would be possible go go near the limits in Nitrox mode, and exceed them in Air mode withouth getting a warning.