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Hochiki CDX Range
The experience and expertise gained over the past 75 years by Hochiki has been applied to the design of the CDX Range of Smoke and Heat Detectors...
Flat Response Technology The CDX Range Photoelectric Detector has been designed with a unique 'Flat Response Technology', enabling the detector to be equally sensitive to a much a wider range of combustible materials. The graph below shows the response of the CDX Range Photoelectric Detector to EN54 test flares, when compared with current technology detectors. The overall flat response of the CDX Range Photoelectric Detector eliminates the need to use lonisation Detectors in the majority of applications. This makes system design easier and overcomes the cleaning and disposal problems associated with lonisation Detectors, The 'Flat Response Technology' has also enabled the detector threshold level to be increased, thereby improving the signal to noise ratio and reducing susceptibility to false alarms. This revolutionary design has been achieved without the need for adding costly heat elements and is part of the standard product range. Installation & Maintenance Each detector has been designed with a one-piece outer cover, which gives an
aesthetically pleasing modern low profile shape. Twin fire alarm LEDs give
360viewing; the light from the LEDs is transmitted via unique light guides which
is achieved by the LEDs being sealed on the PCB for increased protection and
reliability. A common mounting base allows easy detector interchange and gives
the user the option of open circuit or line continuity when detectors are
removed; line continuity is achieved by fitting a Schottky Diode. A simple anti
tamper locking mechanism is provided which is enabled by removing a small
plastic lug on the back of the detector. Once locked the head can only be
removed using a special head removal tool. Application Photoelectric Smoke Detector The CDX Range Photoelectric Smoke Detector with 'Flat Response Technology' Is suited to a wide range of applications. It can be installed in areas where traditionally both Photoelectric and lonisation Detectors have been used, thereby providing a simpler solution for system designers. lonisation Smoke Detector A CDX Range lonisation Detector will continue to be available in order to provide product continuity in certain markets. Heat Detector The CDX Range incorporates Fixed Temperature and Rate of Rise Heat Detectors,
providing accurate temperature measurement. All the variants of Heat Detectors
use thermistors and linearising circuits to provide an accurate linear response
heat detector. The Heat Detector is used where high ambient temperatures exist
in environments such as boiler and drying rooms and where Smoke Detectors are
unsuitable because of the presence of steam or cooking fumes such as in a
kitchen. Mounting bases A new range of CDX Bases has been designed to allow Line Continuity, Relay
and Remote Indicator functions. The CDX range offers two options for Line
Continuity, Schotti,y (Safeline) and Zerier- (Liveline), to maintain line
continuity once a detector has been removed from the base, thus allowing
Callpoints and Detectors to generate a fire condition. Control panel
compatibility should be verified before either the Safeline or Liveline method
is chosen. The CDX Relay Base gives the user a volt free change over
contact rated at 30V 1 A that will |
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