POSEIDON XSTREAM, User Manual

Page: 6 / 29

:: 6 XSTREAM
USER MANUAL :: ENGLISH
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The nitrogen partial pressure must not exceed 3.2 bar (46.4
psi), under the foreseeable maximum diving depth.
Inhaling cold gas and exhaling warmed gas, represents
energy losses of the human body (thermal imbalance, hy-
pothermia). This effect increases with increasing depth and
can result in a sudden unconsciousness. Diving to extreme
depths this effect must be considered, calculated and plan-
ned for and preventive actions must be taken, such as pro-
per thermal protection and pre-heated gas
Xstream is for unlimited use in water temperatures from
water freezing temperature t
ice
+1°C to +50°C (122°F). The
freezing temperature depends on salt content.
Diving with gas blends other than air, or deeper than 18 m
(59 ft), or in overhead environment, requires special train-
ing regarding practices, equipment, physical and medical
understanding.
This manual assumes the reader has some basic knowledge
in those respects.
Diving is a strenuous physical activity. Its difficulty may be
increased by conditions such as cold water, poor visibility,
hard work, and increased depth. Always try to exercise pru-
dent judgement when determining whether or not to dive.
Never dive when tired or in poor health.
Diving deeper than 50m (164 ft) using gasses other than
air is more demanding on the equipment. Most equipment
on the market is only approved for use within EN 250 limits.
Although Xstream Deep is certified to 200m (656 ft) depth
and Xstream Deco is for use with pure oxygen, you must al-
ways make sure all of your equipment is suitable.
Do not use gas mixtures containing Helium for dry suit infla-
tion. Helium has very low insulating properties, and contri-