Tusa DUO-AIR II Manual Del Usuario página 3

GB
LOCATION
Fumbling and/or hunting for the backup regulator during an
emergency wastes precious seconds. The location of the
TUSA DUO-AIR II is always the same. It is engineered for
left-hand use and is positioned at the end of the buoyancy
compensator hose. Because of the mounting design, the
mouthpiece is always facing the diver in perfect alignment
for instant use.
APPLICATION DEPENDABILITY
The problems associated with the accumulation of sand,
gravel, and foreign matter inside the backup regulator have
been solved in the design of the TUSA DUO-AIR II in two
ways. First, because the TUSA DUO-AIR II is attached to
the shorter buoyancy control hose is less likely to drag
on the bottom. Second, constant flushing action partially
eliminates the problem of debris accumulation.
THE QUICK DISCONNECT COUPLING
The quick disconnect coupling can be connected with or
without pressure in the hose because of an automatic
check valve in the hose end of the coupling which prevents
leakage of air when disconnected.
OPERATION
Normal Operating Mode - Push button or oral inflation/
deflation. When properly installed to the left hand shoulder
of the buoyancy device, the TUSA DUO-AIR II can be fully
operated with the left hand by depressing the buttons for
inflation or deflation. These two buttons are offset and are
different sizes for easy identification. The smaller button
is depressed for automatic inflation. The larger button is
depressed for deflation. For oral inflation, only the large
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