Cold Water Use - Beuchat VS3 Notice D'utilisation

Notice Detendeurs 07-2008 int.qxd
46 > User guide / VX 100 - VX 10 Iceberg
Important : On the surface to avoid any free flow resul-
ting from surface waves and / or sudden entry in the
water , the diver should keep the lever pushed towards
the front in the - minus position. This position should be
maintained whenever the second stage is used as an
octopus for a safe second stage.
At the beginning of the dive, the diver should push the
Venturi lever in the + / plus position, to obtain optimum
breathing characteristics. The + / plus position is the "dive
mode" position.
D > INHALATION RESISTANCE
This knob, located on the left hand side of the VX 100 /
VX Iceberg hosing, allows to adjust the resistance on the
VX 100 / VX Iceberg spring and thereby to alter the initial
breathing resistance. The diver can choose any position
between the minimum (turned completely counter clock
wise) and the maximum (turned completely clock wise)
depending on the conditions. turning the knob clockwise
will increase the inhalation resistance, turning it counter
clockwise will decrease the inhalation resistance. When
the inhalation resistance knob is in the minimum position,
31/07/08 15:46 Page 46
there may be a light free flow. If this is the case, slightly
turn the knob clockwise until the air flow stops. Or have
your regulator checked by an authorized BEUCHAT dealer.

2 - COLD WATER USE

Use of regulators in water temperature colder than 50 F /
10°C, requires special equipment and precautions.
Only the VRT80, VX10 Iceberg, VX200 Iceberg, VR200
Evolution et VR200 Iceberg should be used in cold water
diving.
1. Make sure that your air supply meet the EN 12021 qua-
lity norm requirements.
2. Use a cylinder with a dual outlet Y-valve and two inde-
pendent breathing system outfitted for cold water use.
3. Do not expose the regulator to cold air (colder than 32
F / 10°C). Place the regulator first stage in the cold water
to bring its temperature up before use.
4. Do not purge the second stage outside the water to
avoid freezing incidence.
5. During the dive : do not purge unnecessary demands
on your regulator, i.e. avoid using all at once the regula-
tor, the octopus, the BC power inflator and the dry-suit