Cold Water Use - Beuchat VS3 Notice D'utilisation

Notice Detendeurs 07-2008 int.qxd
42 > User guide / VRT 80
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.

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.
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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
valve. do not purge the regulator unless required.
6. If the regulator were to freeze up accidentally and the-
refore free flow, switch to your second breathing system
and abort the dive.
WARNING : Cold water diving requires special equip-
ment and training. Failure to follow the above instructions
and recommendations can result in serious injury or
death. Certified instruction should be received and com-
pleted for cold water and ice diving from a certified ins-
tructor by a recognized training agency prior to attemp-
ting any cold water or ice diving.