摘要:
The present invention relates to an electrically operated device for generating synthetic smoke and also to a hazard detector tester utilizing such a device. The device comprises a collapsible container provided with vaporisable liquid and a tube, one end of which is immersed in the liquid and the other end of which is provided with an electrical heater for vaporising the liquid in the other end of the tub in order to generate smoke. A peristaltic pump is used to pump the liquid through the tube.
摘要:
The present invention relates to an electrically operated device for generating synthetic smoke and also to a hazard detector tester utilizing such a device. The device comprises a collapsible container provided with vaporisable liquid and a tube, one end of which is immersed in the liquid and the other end of which is provided with an electrical heater for vaporising the liquid in the other end of the tub in order to generate smoke. A peristaltic pump is used to pump the liquid through the tube.
摘要:
An apparatus for testing a smoking or fire detector includes an open-topped housing for receiving a detector under test. A stream of fluid for activating the detector is generated in a portion of the housing below the detector and is directed by a duct up one side of the interior of the housing to flow across the housing in a direction of the detector. A spacer can be provided in order to ensure that the direction of flow is precisely located at a point that is a predetermined distance above the bottom of the detector. Also, a heating element may be provided in the duct if required.