Abstract: A probe for monitoring a pressurised process space includes a casing enclosing a cavity and having a first window configured to be brought into contact with the process space, and a second window. A sealing means is configured to seal the first window to the casing. At least once coupling line is disposed within the cavity between the first and second windows and is configured to guide electromagnetic radiation entering through one of the two windows to the other of the two windows. A method for monitoring a pressurised process space, in which one or more hazardous substances occur, is also disclosed.

Abstract: A probe for monitoring a pressurised process space includes a casing enclosing a cavity and having a first window configured to be brought into contact with the process space, and a second window. A sealing means is configured to seal the first window to the casing. At least once coupling line is disposed within the cavity between the first and second windows and is configured to guide electromagnetic radiation entering through one of the two windows to the other of the two windows. A method for monitoring a pressurised process space, in which one or more hazardous substances occur, is also disclosed.

Abstract: A filter device is described for obtaining a filtered sample of fluid for measuring purposes from a container or tube conduit. The device has a closed fluid circuit including a first filter element 4, a pump conduit having a pump 27 therein, and a second filter element 5 arranged so that a sample of fluid is suctioned from the container or tube conduit via the first filter element 4, through the pump conduit 26, 28 and then back to the container or tube via the second filter element 5 or vice versa. An optical probe 17 for measuring purposes can be arranged within the carrier tube 7.

Abstract: A filter device for filtration of fluids with extraction of a filtered sample fluid from containers and tube conduits for measuring purposes, the filter device has a closed fluid circuit including at least one first filter element, a fluid pump, a second filter element arranged so that a sample fluid is suctioned via the first filter element out of a container or tube conduit and via the second filter element is pumped back into the container or tube conduit, or vice versa.