| 摘要 |
FIELD: instrument making, possibly sampling and analyzing industrial waste and controlling air in towns and industrial centers. ^ SUBSTANCE: apparatus includes sampling devices communicated with gas sampling tract; gas analysis device and circuit for controlling sampling devices. Apparatus is provided with duct for accumulating analyzed sample. Outlet of gas analysis device is connected with one end of gas sampling tract being in the form of main pipeline. Other end of gas sampling tract is connected with test gas generator. Control circuit for sampling devices includes first comparator whose inlet is connected with first outlet of gas analysis device and whose outlet is connected with signal inlet of delay circuit. Control circuit includes second comparator whose first inlet is connected with outlet of memory unit and whose second inlet is connected with second outlet of gas analysis device. First outlet of second comparator is connected with inlet of coder; its second outlet is connected with control inlet of delay circuit. First inlet of coder is connected with decoders arranged on sampling devices. Second outlet of coder is connected with inlet of actuator. Outlet of actuator is connected with sampling devices. Outlet of delay circuit is connected with rotary electric-pneumatic valve mounted in main pipeline. Said valve is connected with inlet pipeline of duct for accumulating analyzed sample. Outlet pipeline of duct for accumulating analyzed sample is connected with main pipeline. Outlet of gas analysis device is connected with pump. ^ EFFECT: possibility for receiving operative information related to environment parameters, enlarged functional possibilities of apparatus. ^ 2 dwg |
