Abstract: A device system and a process for monitoring an industrial plant offers the persons working at the plant with the greatest possible protection. Signal transmitters (4, 5), which are fastened to persons (2, 3) or mobile objects, send or trigger a code related to a person or mobile object. Position marks (31, 32, 33, 34, 41, 42, 61, 62, 71, 72, 36, 37, 74), which provide a position code and a direction code for passing through an entrance or an exit, are arranged at entrances and exits of an industrial plant (21, 22). A receiving unit (15, 35, 43, 63, 73) receives the code of the signal transmitters combined with the position code and direction code. A computing and evaluating unit (12) is connected with the receiving unit and generates a topology for the persons or mobile objects to enter or leave the industrial plant.

Abstract: A device system and a process for monitoring an industrial plant offers the persons working at the plant with the greatest possible protection. Signal transmitters (4, 5), which are fastened to persons (2, 3) or mobile objects, send or trigger a code related to a person or mobile object. Position marks (31, 32, 33, 34, 41, 42, 61, 62, 71, 72, 36, 37, 74), which provide a position code and a direction code for passing through an entrance or an exit, are arranged at entrances and exits of an industrial plant (21, 22). A receiving unit (15, 35, 43, 63, 73) receives the code of the signal transmitters combined with the position code and direction code. A computing and evaluating unit (12) is connected with the receiving unit and generates a topology for the persons or mobile objects to enter or leave the industrial plant.

Abstract: A testing device for respirator products simulates breathing cycles with variable pressure rise. The device includes a fan (5) with a suction conduit (6) and with a pressure conduit (7). A reversing valve (10) is connected to the fan (5) and is designed to connect the pressure conduit (7) or the suction conduit (6) in terms of flow to the respirator product (2) in a predetermined time sequence in such a way that the particular free conduit is switched into the open position to the environment. A throttling element (11, 13) is located in the line section between the fan (5) and the respirator product (2) and which has a cross-sectional area that can be varied according to a preset manipulated variable.