Testing of aspirating systems
First Claim
1. An aspirating system for detecting the presence of a product representative of a hazard, the system comprising:
- 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;
at least one test stimulus generator of test stimulus for generating the product representative of a hazard;
a control unit for controlling the activation of the test stimulus from the at least one test stimulus generator; and
a timing device for measuring the time taken for the test stimulus to reach the detector following activation by said control unit,wherein the at least one test stimulus generator is fixed in, near, or on the piping such that in use the test stimulus is provided adjacent to at least one aperture of the piping.
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Accused Products
Abstract
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.
25 Citations
13 Claims
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1. An aspirating system for detecting the presence of a product representative of a hazard, the system comprising:
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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; at least one test stimulus generator of test stimulus for generating the product representative of a hazard; a control unit for controlling the activation of the test stimulus from the at least one test stimulus generator; and a timing device for measuring the time taken for the test stimulus to reach the detector following activation by said control unit, wherein the at least one test stimulus generator is fixed in, near, or on the piping such that in use the test stimulus is provided adjacent to at least one aperture of the piping. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. Method of detecting the presence of a product representative of a hazard in an aspirating system comprising:
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providing piping that includes a plurality of apertures spaced apart along the length of the piping and a detector coupled to the piping and a detector coupled to the piping; fixing a test stimulus generator in, near or on the piping; and controlling the activation of the test stimulus from the test stimulus generator including; providing test stimulus representative of a hazard adjacent to at least one aperture of the piping; drawing in air from outside the piping into piping through at least one aperture; detecting the presence of the product representative of a hazard; and measuring the time taken for the test stimulus to reach the detector following activation of the test stimulus.
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13. An aspirating system for detecting the presence of a product representative of a hazard, the system comprising:
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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; and a power source to provide power to the aspirator and the detector, wherein the power to the test stimulus generator is provided by the same power source that provides power to the aspirator and the detector.
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Specification