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5.9. MIXED GAS DIVE mode settings
Suunto HelO2 has several
With Suunto HelO2, most of the settings are planned with the Suunto Dive Planner and downloaded to the dive computer. If necessary, they can be changed manually.
The following figure shows how to enter the DIVE mode settings menu.
| USE UP AND DOWN BUTTONS TO |
| TOGGLE BETWEEN DIVE SETTINGS |
NOTE | Some settings cannot be changed until 5 minutes has elapsed after |
| the dive. |
5.9.1. Setting the gases
If set to the MIXED GAS mode, the correct oxygen and helium percentages of the gas in your cylinders (and additional gases) must always be entered into the dive computer to ensure correct tissue and oxygen calculation. In addition, the oxygen partial pressure limit must be set. You can either modify the dive plan with the Suunto Dive Planner or enter the correct values directly into the dive computer after analyzing the gas mixes in your cylinders.
ADJUST WITH | ADJUST WITH |
UP AND DOWN | UP AND DOWN |
BUTTONS. | BUTTONS. |
ACCEPT WITH | ACCEPT WITH |
SELECT BUTTON. | SELECT BUTTON. |
When in the MIXED GAS setting mode, the equivalent maximum operating depth, based on the chosen setting, is also be displayed.
After entering values for MIX1, you can set additional mixes, MIX2 - MIX8, similarly. You can set them to "PRIMARY", "SECONDARY" or "OFF". MIX 1 is always set as a primary gas.
In order to minimize the risk of error during a dive, it is highly recommended that the mixes are set in the proper order. This means that as the mix number rises, so does oxygen content, and this is the order they are usually used during the dive. Before a dive, only enable the mixes you actually have available and remember to check the set values to make sure they are correct.
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