FIELD: diving respiratory apparatuses. SUBSTANCE: device has stationary support with turning drum of revolving type with sockets for arrangement of set of indicating tubes. Rubber washers and reciprocating mechanism with hollow rod are set on ends of indicating tubes. One end of rod is made as valve seat, and flexible hose running from pumping device of gas analyzer is secured on the other end of rod. Stationary support carries measuring scale. Hole is provided near measuring scale coaxially with rod. From the inside hole has sealing groove and from the outside, pipe connection to which cylinder with check gas mixture is coupled through electromagnetic valve and flexible reservoir. In addition, reciprocating mechanism, drum and pumping device of gas analyzer are provided with electromechanical drives which are controlled from the outside of decompression chamber. EFFECT: reduced mass and overall dimensions. 2 cl, 1 dwg
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