GB
27
Regulator Owner’s Manual
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The second stage incorporates a deflector to minimise the effects of strong
currents on the diaphragm, however, if you swim underwater in an upside
down or sideways position, or facing a strong current, you can turn the
inhalation control knob back “in” (clockwise), to desensitise the opening
effort to prevent any freeflow.
At the end of your dive, be sure to return the IVS/RVS switch (if fitted) to
the MIN (–) position, and turn the inhalation control knob “in” when you
have arrived at the surface.
WARNING: Deep diving requires special training and equipment,
and greatly increases your risk of decompression sickness
and other serious diving injuries. If you attempt to dive beyond
prescribed no-decompression limits without first obtaining
sanctioned technical dive training, you risk serious injury and
death.
Diving In Cold Water
The C.E.N. standard defines cold water as 10ºC (50ºF) or lower. In such
conditions, there is a risk of freeze-up; particularly in fresh water, which has
a higher freezing point and more severe thermoclines. Incidents of first or
second stage freeze-up usually result in freeflow from the second stage,
resulting in a rapid loss of air.
Before attempting an unsupervised dive in cold water conditions, it is
important for you and your buddy to obtain certified training in cold water
diving techniques, and to use only equipment which has been specifically
designed and maintained for such use. If these precautions are not
taken, freeze-up can occur. Any equipment marked with the greater than
10°celcius symbol; (>10°C) are only suitable for water temperatures above
10°C or 50°F.
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