Abstract: The present invention relates to a light guiding arrangement (1) for transmitting electromagnetic radiation, in particular ultraviolet and/or infrared radiation, and a spark and/or flame detector that uses same. The light guiding arrangement (1) comprises a housing (10) and a light guiding rod (20), wherein the housing (10) has a light entrance opening (12) and a light exit opening (14) situated opposite, wherein the light guiding rod (20) is arranged in the housing (10) between the light entrance opening (12) and the light exit opening (14), wherein the light guiding rod (20) is mounted resiliently on at least one side in the housing (10).

Abstract: A modular multi-sensor fire detector including an evaluation unit having a housing, a plurality of sensor heads, and at least one adapter. At least one of the plurality of sensor heads has at least one hazard parameter conductor with a mounting tube having a proximal end, a distal end and a fastener at the proximal end. The at least one adapter is attached to the mounting tube and includes a first fastening point, a second fastening point and a third fastening point. The first fastening point for connection to the fastener on the mounting tube, the second fastening point for connection to a capping device, and the third fastening point for connection to a wall.

Abstract: A modular multi-sensor fire detector including an evaluation unit having a housing, a plurality of sensor heads, and at least one adapter. At least one of the plurality of sensor heads has at least one hazard parameter conductor with a mounting tube having a proximal end, a distal end and a securing means at the proximal end. The at least one adapter is attached to the mounting tube and includes a first fastening point, a second fastening point and a third fastening point. The first fastening point for connection to the securing means on the mounting tube, the second fastening point for connection to a capping device, and the third fastening point for connection to a wall.

Abstract: The invention relates to a housing for a detection unit for optically detecting smoke particles. The detection unit has a light source for emitting radiation to be scattered by smoke particles to be detected and a light detector for detecting the scattered radiation. The housing 2 has a cylindrical outer surface 7 having smoke openings 8 through which the smoke particles enter housing 2, and a radially symmetric light-guiding structure 9 with guide members. The guide members are so designed that adjacent guide members each form a guide channel through which the radiation emitted from the light source and not scattered by the smoke particles is guidable to the outside in the direction of the smoke openings 8 by multiple reflection. Higher detection sensitivity for optically detecting smoke particles can be achieved as a result.

Abstract: The invention relates to an explosion-protected housing for means for transmitting and/or receiving electromagnetic radiation. The housing comprises a housing body that is configured to receive such transmission and/or reception means and a window element having a first side that faces the housing interior and an opposite second side that faces away from the housing interior, wherein the window element transmits electromagnetic radiation. The housing body has a flanging on the second side of the window element, said flanging pressing the window element in the direction of a seat that is formed in the interior of the housing such that the housing is formed as a pressure-resistant housing and/or as a dust-tight housing.

Abstract: The invention relates to an explosion-protected housing for means for transmitting and/or receiving electromagnetic radiation (2, 2a, 2b). The housing comprises a housing body (1) that is configured to receive such transmission and/or reception means (2, 2a, 2b) and a window element (5) having a first side (7) that faces the housing interior and an opposite second side (6) that faces away from the housing interior, wherein the window element (5) transmits electromagnetic radiation. The housing body (1) has a flanging (11) on the second side (6) of the window element (5), said flanging pressing the window element (5) in the direction of a seat (13) that is formed in the interior of the housing such that the housing is formed as a pressure-resistant housing and/or as a dust-tight housing.

Abstract: The present invention relates to a light guiding arrangement (1) for transmitting electromagnetic radiation, in particular ultraviolet and/or infrared radiation, and a spark and/or flame detector that uses same. The light guiding arrangement (1) comprises a housing (10) and a light guiding rod (20), wherein the housing (10) has a light entrance opening (12) and a light exit opening (14) situated opposite, wherein the light guiding rod (20) is arranged in the housing (10) between the light entrance opening (12) and the light exit opening (14), wherein the light guiding rod (20) is mounted resiliently on at least one side in the housing (10).

Abstract: The invention relates to a housing for a detection unit for optically detecting smoke particles. The detection unit has a light source for emitting radiation to be scattered by smoke particles to be detected and a light detector for detecting the scattered radiation. The housing 2 has a cylindrical outer surface 7 having smoke openings 8 through which the smoke particles enter housing 2, and a radially symmetric light-guiding structure 9 with guide members. The guide members are so designed that adjacent guide members each form a guide channel through which the radiation emitted from the light source and not scattered by the smoke particles is guidable to the outside in the direction of the smoke openings 8 by multiple reflection. Higher detection sensitivity for optically detecting smoke particles can be achieved as a result.

Abstract: A modular multi-sensor fire detector (300) that has an evaluation unit and a plurality of sensor heads (100) which are arranged locally at a distance from the evaluation unit and are connected to the evaluation unit in a signal-conducting manner, wherein the evaluation unit (200) can be connected in a signal-conducting manner to an alarm signal receiving device (301) which is locally at a distance.

Abstract: The invention relates to a hazard detector for an evaluation unit (12, 14), e.g. a fire detector and/or extinguishing control center (12). The hazard detector (10) comprises a housing (16) having at least one sensor unit (22) or a sensor interface for connecting the sensor unit (22) to capture a hazard parameter. Moreover, the hazard detector (10) comprises a first electronic assembly (26), electrically connected to the sensor unit (22) or the sensor interface, for processing sensor signals of the sensor unit (22), and a second electronic assembly (30), connected to at least one first interface (38) for electrically connecting the second electrical assembly (30) to a physically remote evaluation unit (12, 14). In this arrangement, the first electronic assembly (26) and the second electronic assembly (30) comprise a wireless data connection (32) for transmitting the processed sensor signals from at least the first electronic assembly (26) to the second electronic assembly (30).

Abstract: The invention relates to a hazard detector for an evaluation unit (12, 14), e.g. a fire detector and/or extinguishing control center (12). The hazard detector (10) comprises a housing (16) having at least one sensor unit (22) or a sensor interface for connecting the sensor unit (22) to capture a hazard parameter. Moreover, the hazard detector (10) comprises a first electronic assembly (26), electrically connected to the sensor unit (22) or the sensor interface, for processing sensor signals of the sensor unit (22), and a second electronic assembly (30), connected to at least one first interface (38) for electrically connecting the second electrical assembly (30) to a physically remote evaluation unit (12, 14). In this arrangement, the first electronic assembly (26) and the second electronic assembly (30) comprise a wireless data connection (32) for transmitting the processed sensor signals from at least the first electronic assembly (26) to the second electronic assembly (30).

Abstract: The invention relates to a modular multi-sensor fire detector (300). The invention proposes that the detector (300) has an evaluation unit and a plurality of sensor heads (100) which are arranged locally at a distance from the evaluation unit and are connected to the evaluation unit in a signal-conducting manner, wherein the evaluation unit (200) can be connected in a signal-conducting manner to an alarm signal receiving device (301) which is locally at a distance. The invention also relates to a fire detection system having such a detector.

Abstract: The invention relates to an explosion-protected housing for means for transmitting and/or receiving electromagnetic radiation (2, 2a, 2b). The housing comprises a housing body (1) that is configured to receive such transmission and/or reception means (2, 2a, 2b) and a window element (5) having a first side (7) that faces the housing interior and an opposite second side (6) that faces away from the housing interior, wherein the window element (5) transmits electromagnetic radiation. The housing body (1) has a flanging (11) on the second side (6) of the window element (5), said flanging pressing the window element (5) in the direction of a seat (13) that is formed in the interior of the housing such that the housing is formed as a pressure-resistant housing and/or as a dust-tight housing.

Abstract: A method for fire detection in enclosed environments (1) subject to explosion protection regulations out of which an air-dust mixture is filtered while the concentration of dust of the air-dust mixture is lowered to under the explosion limit by a filter (2) and the aspirated air-dust mixture is checked for burning characteristics and if appropriate a fire alarm is triggered, in which the function of the filter (2) is monitored, the fire detection is carried out by use of an aspirating smoke detector system (7) not approved for use in potentially explosive areas but instead is deployed outside the ex-zone and if the filter (2) is destroyed a signal processing unit (15, 15.1) of a malfunction monitoring sensor (14) generates a signal which initiates a subsequent action preventing aspirated air-dust mixture with an elevated concentration of dust from entering the aspirating smoke detector system (7).

Abstract: A fire alarm consists of a housing in which sensors, a radiation source, and an optical window are disposed. A reflector protection basket or ring is disposed above the optical window. The basket or ring is suitable for protecting the optical window against mechanical influences, allows UV and IR radiation to pass through to a sufficient degree, and reflects UV and IR radiation from the housing interior, on its inside. Monitoring of the contamination of the window, function monitoring of the sensors and of the signal processing electronics, as well as easy replaceability of the components in the fire alarm are provided.

Abstract: A device for detecting flames in which at least two identical detectors are disposed next to one another. Each detector has an identical signal processing circuit having an amplifier and an A/D converter, and a symmetrical and similar layout, i.e., conductor track placement. Each of the detectors covers a different wavelength range, by way of a preceding filter, and the signal detection takes place at the same time and synchronously, so that a precise analysis of the received radiation occurs using simple algorithms, independent of disruptive influence variables. By using the same detectors and the same signal processing systems, as well as the symmetrical and similar configuration of the conductor track placement, as well as the synchronous control of the signal recording, interference variables occur uniformly on all optical reception channels. This uniform interference can be compensated without complicated algorithms.

Abstract: A method for fire detection in enclosed environments (1) subject to explosion protection regulations out of which an air-dust mixture is filtered while the concentration of dust of the air-dust mixture is lowered to under the explosion limit by a filter (2) and the aspirated air-dust mixture is checked for burning characteristics and if appropriate a fire alarm is triggered, in which the function of the filter (2) is monitored, the fire detection is carried out by use of an aspirating smoke detector system (7) not approved for use in potentially explosive areas but instead is deployed outside the ex-zone and if the filter (2) is destroyed a signal processing unit (15, 15.1) of a malfunction monitoring sensor (14) generates a signal which initiates a subsequent action preventing aspirated air-dust mixture with an elevated concentration of dust from entering the aspirating smoke detector system (7).

Abstract: A fire alarm consists of a housing in which sensors, a radiation source, and an optical window are disposed. A reflector protection basket or ring is disposed above the optical window. The basket or ring is suitable for protecting the optical window against mechanical influences, allows UV and IR radiation to pass through to a sufficient degree, and reflects UV and IR radiation from the housing interior, on its inside. Monitoring of the contamination of the window, function monitoring of the sensors and of the signal processing electronics, as well as easy replaceability of the components in the fire alarm are provided.

Abstract: A device for detecting flames in which at least two identical detectors are disposed next to one another. Each detector has an identical signal processing circuit having an amplifier and an A/D converter, and a symmetrical and similar layout, i.e., conductor track placement. Each of the detectors covers a different wavelength range, by way of a preceding filter, and the signal detection takes place at the same time and synchronously, so that a precise analysis of the received radiation occurs using simple algorithms, independent of disruptive influence variables. By using the same detectors and the same signal processing systems, as well as the symmetrical and similar configuration of the conductor track placement, as well as the synchronous control of the signal recording, interference variables occur uniformly on all optical reception channels. This uniform interference can be compensated without complicated algorithms.

Abstract: A device for detecting an onset of a fire includes a detector for recognizing a fire parameter, at least one feed line having a suction opening, a fan that feeds air to the detector via the feed line, and a rubber-elastic part including a film disposed across an inside portion and defining a film opening having a smaller diameter than a diameter of the suction opening. The rubber-elastic part os disposed against the feed line in a gas-tight manner. In addition, a method for cleaning the device including blowing a gas stream from an inside of the film to an outside of the film through the film opening.