There are several factors that can affect your susceptibility to DCS. Such factors vary between divers and from one day to another.
The personal factors which tend to increase the possibility of DCS include:
The three-step personal setting can be used to adjust the algorithm to fit your DCS susceptibility.
| Personal adjustment | Explanation |
|---|---|
| 0 | Ideal conditions (default value). |
| 1 | Conservative. Some risk factors or conditions exist. |
| 2 | More conservative. Several risk factors or conditions exist. |
In addition to the personal setting, Suunto D4i can be adjusted for diving at different altitudes. This adjusts the decompression calculation according to the selected altitude adjustment.
| Altitude adjustment | Explanation |
|---|---|
| 0 | 0 – 300 m (0 – 980 ft) (default) |
| 1 | 300 – 1500 m (980 – 4900 ft) |
| 2 | 1500 – 3000 m (4900 – 9800 ft) |
To change the personal and altitude adjustment settings:
Traveling to a higher altitude can temporarily cause changes to the equilibrium of dissolved nitrogen in the body. It is recommended that you acclimatize to the new altitude by waiting at least three (3) hours before diving.