POSEIDON XSTREAM, User Manual

Page: 15 / 29

USER MANUAL :: ENGLISH
:: 15 XSTREAM
HOW
TO
USE
2) Before attaching the regulator, carefully
open the cylinder valve, using gas flow to
clear the outlet, then close the valve. Never
direct the gasstream to bare skin or clothes
(porous materials)
3) Remove the protective cap on the first st-
age. Check that the O-ring on the regulator’s
connection is intact and clean, then mount
the regulator on the cylinder valve. Turn the handwheel/
yoke-knob until you feel that the regulator is securely fast-
ened.
Inspect the o-ring, and make sure it is absolutely free from
particles and/or grease. Do not touch the o-ring. Grease and
particles can cause a fire.
4) Slowly open the cylinder valve all the way, then turn the
knob back half turn. When the 2nd stage is pressurised and
the servo mechanism engages a maximum of 3 litres of gas
vents from the 2nd stage.
Slow opening of the cylinder valve is the best way to protect
the system from compression shocks. Rapid openings repre-
sents the highest risk for fire due to compression shock. To
ensure a slow opening it is good practice to use both hands,
one on top of the other.
Always open the cylinder, and isolator valves if used, first
fully and then a 1⁄2 turn back. Partly opened valves in-
creases the pressure drop over the valve and can reduce
the performance. On some brands, valves that are almost
closed can even shut off during a dive due to internal flexing
of materials.
5) Press a few times on the purge button on the second
stage so as to blow out possible debris.
6) Check the pressure gauge to see that the tank is full,
OXYGEN ALERT!
OXYGEN ALERT!