摘要:
Apparatus for testing a smoke or fire detector comprises an open-topped housing (1) for receiving a detector (2) under test. A stream of fluid for activating the detector (2) is generated in a portion (1a) of the housing below the detector and is directed by means of a duct (7) up one side of the interior of the housing (1) to flow across the housing in the direction of the detector. A spacer (10) can be provided in order to ensure that the direction of flow is precisely located at a point which is a predetermined distance above the bottom of the detector. Also, a heating element (11) may be provided in the duct (11) if required.
摘要:
Apparatus is provided which comprises a container (10) arranged to contain a material dispensable as a spray, aerosol or particulate through an outlet aperture (11), and a spacer member (14), wherein the spacer member (11) is movable between a first position (fig.1) which is convenient for carrying and / or storage and a second position (fig.2) which determines a minimum distance between the outlet aperture and the target surface area or object for the spray, aerosol or particulate. Preferably, the spacer member when in the first position can inhibit the spray, aerosol or particulate from directly impacting the target surface, area or object.
摘要:
A hazard detector monitoring system comprises one or more smoke detectors each provided with an electronic device containing information unique to the detector so as to identify the detector. A testing device is located at the end of a pole and held adjacent the detector to read and write to the electronic device through a wireless communication link. The testing device causes the detector to carry out a predetermined operation and the result of the operation is read by the testing device from the electronic device using the wireless communication link together with the identity of the detector.
摘要:
An aspirating system for detecting the presence of a product representative of a hazard and a method of detecting the presence of a product representative of a hazard in an aspirating system are provided. The system comprises: piping that includes a plurality of apertures spaced apart along the length of the piping; an aspirator for drawing air from outside the piping into the piping through at least one aperture, a detector coupled to the piping for detecting the presence of a product representative of a hazard; a generator of test stimulus for generating the product representative of a hazard; wherein the test stimulus generator is fixed in, near, or on the piping such that in use a test stimulus is provided adjacent to at least one aperture of the piping. A control means can be provided to control the activation of the test stimulus from the generator and the time taken for the test stimulus to reach the detector can be measured.
摘要:
Apparatus for testing a smoke or fire detector comprises an open-topped housing (1) for receiving a detector (2) under test. A stream of fluid for activating the detector (2) is generated in a portion (1a) of the housing below the detector and is directed by means of a duct (7) up one side of the interior of the housing (1) to flow across the housing in the direction of the detector. A spacer (10) can be provided in order to ensure that the direction of flow is precisely located at a point which is a predetermined distance above the bottom of the detector. Also, a heating element (11) may be provided in the duct (11) if required.
摘要:
A test apparatus for testing a detector such as a smoke detector or the like comprises a housing member pivotally mounted on the end of a pole and containing a test element for testing the detector. The housing member has an opening and is adapted to be placed over the detector under test. The presence of the detector within the housing member is sensed using a non-contact arrangement such as a photo-electric system and causes the test element to be activated to test the detector. A power supply for the test element is mounted in or on the pole adjacent the housing member and power is supplied to the test element using electrically conductive members which provide both mechanical and electrical connection between the housing member and the pole.
摘要:
Apparatus for testing the sensitivity of a smoke detector (12) in-situ, includes a head assembly (1) comprising a housing (14) for surrounding a smoke detector in-situ and forming part of means (14, 15, 16, 17) defining a path through which air carrying an aerosol will, in operation, circulate, sensor means (25, 26, 27) for sensing the concentration of aerosol in the air circulating in the path, air circulating means (20) for causing air to circulate in the path, aerosol supply means (24) for supplying aerosol to the path and control means for controlling the concentration of aerosol in the air circulating in the path by controlling the air circulating means and the aerosol supply means in dependence on the output of the sensing means.