Description
RN/A 1603adds the highest degree of safety and comfort to the effi- ciency, versatility and simple use of the MK2 System, as well as the astonishing field of vision of the Spasciani TR 2002 A mask.
RN/A 1603 is fitted with an automatic demand valve which keeps a positive pressure in the mask thus avoiding any possible inward leaka- ge of contaminated air from the outside. Should it become necessary, the positive pressure mode can be activated by acting on the special button that acts as a supplementary air command, too. The demand valve is connected to the medium pressure hose by means of a quick coupling which allows to disconnect it very easily for maintenance .
RN/A 1603 takes advantage from the unique MK2 System warning built into the demand valve. This is activated when the pressure left in the cylinder drops below 55 bar. The signal originates from a sounding vibration caused by every inhalation. In this way the full capacity of cylinder is made available to the user for breathing. The acoustic war- ning is related to the respiratory frequency of the user and allows the user to distinguish his own signal from that emitted by nearby fellows or noise (Self Test Function). The location of the warning device pro- tects it from frost or dirt.
The back plate is made of blow molded thermoplastic polypropylene, it is extremely robust and anatomically shaped to allow a comfortable distribution of weight and remains steady on the wearer’s back even when crou- ching or crawling. The supporting harness is provided with a special padding to increase comfort and can be equipped, on demand, with a soft belt in the hips area to increase portability of the equipment. Special handles integral with the backplate are provided for carrying the set along. The pressure reducer keeps the outlet pressu- re constant throughout the emptying of the cylinder and is connected to an easy to read phosphorescent gauge. The steel cylinder has a capacity of 6 liters with a pressure of 300 bar and is fitted with a valve to EN 144.
RN/A 1603 can also be used in conjunction with a wheeled BA Spasciani RC or an air line feeding system by means of the optional 4-way valve.
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