The personal factors which tend to increase the possibility of DCI include, but are not
limited to:
•
cold exposure —water temperature less than 20 °C/68 °F
•
below average physical fitness level
•
fatigue
•
dehydration
•
previous history of DCI
•
stress
•
obesity
•
patent foramen ovale (PFO)
•
exercise on or after dive
This feature is used to adjust the computer to be more conservative, according to
personal preference, by entering the suitable Personal Adjustment setting with the
help of Table 5.5, Personal Adjustment settings. In ideal conditions, retain the default
setting, P0. If conditions are more difficult, or any of the factors which tend to increase
the possibility of DCI exist, select P1, or even the most conservative P2. The dive
computer then adjusts its mathematical model according to the entered Personal Ad-
justment setting, giving shorter no-decompression times (refer to Section 10.2.2. No-
decompression limits for air, Table 10.1, No-decompression time limits for various
depths (m) and Table 10.2, No-decompression time limits for various depths (ft) ).
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