Tusa RS-350 Manual Del Propietário página 8

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Regulators
outstanding hardness and shock resistance. The materials also offer superior tensile
strength, dimensional stability, heat resistance, weather resistance and chemical re-
sistance.
Intake resistance
* The second stage includes a director to forcibly guide air from the demand valve.
That prevents free flow while significantly lessening intake resistance. The result is
one of the lightest intake resistance values in the industry compared with products
from other companies.
New mouthpiece
The new mouthpiece, developed on the basis of ergonomic engineering, further
enhances the comfort of bite, fit, and stability. Even with a light bite, a high level of
stability is achieved, so there is no fatigue from long periods of usage.
Venturi Adjustment Lever (RS-680, 790, 811, 811S, 812, 812S, 1001)
The addition of a venturi adjustment lever allows the regulator to power assist the
diver when underwater utilizing the natural venture effect. The diver can also adjust
the lever to prevent free flow such as on a surface swim.
Swivel joint (RS-340, 350, 670, 680, 812, 812S)
For optimum performance and comfort, a swivel joint is fitted between the second
stage and the joint section of the low pressure hose. The swivel joint allows flexibility
of the hose for eliminate hose tension at the mouthpiece for a more natural and com-
fortable bite.
S.E.A. -Sequential Exhaust Assist [PAT.P.] (RS-680)
The Sequential Exhaust Assist (S.E.A.) is an auxiliary exhaust valve, located on top
of the S-80 elliptical case to decrease primary exhaustion resistance.
Click Spring Adjustment (RS-340, 350, 680)
The click spring adjustment feature is exclusive to TUSA. It is a 5 position adjust-
ment knob designed to better control breathing resistance.
Adjustable Control Knob (RS-812, 812S)
The adjustable knob designed to better control breathing resistance.
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