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i <br /> � <br /> . . i <br /> SMOKE DETECTOR HEAQS � <br /> i ' i <br /> FEATURIES: IONIZATION DETECTION I <br /> � UL Listed to Standard 268 ; <br /> • Low Profile DESCRIPTION: ' I <br /> e 360° Smoke Entry for Optimum Response The 2098-9576 ionization detector incorporates a single <br /> • Sealed�Against Rear Air Flow Entry radioactive source with an outer sampling ionization <br /> • Locking Tamper Screw chamber and an inner reference ionizatio,'n chamber to <br /> • Pulsing Power-On LED provide stable operation under extremes!in <br /> • LED Alarm Indication temperature, humidity, and other fluctuations in <br /> • Magnetically Operated Functional Test environmental conditions. <br /> Feature Smoke and invisible combustion gases can freely <br /> i penetrate the outer chamber. With both chambers <br /> • Optional 135° Fixed Temperature Heat ionized by a radioactive source (AM 241�), a very small <br /> Eleme�nt for Photoelectric Detector current flows in the circuit. The presence of particles of � <br /> combustion will cause a change in the voltage ratio <br /> ' between chambers This difference is th'en amplified <br /> GENERAL: inside the detector and communicated to the <br /> Smoke detectors for MAPNET II addressable bases addressable base_electronics when a pr,edetermined <br /> provide a 360° smoke entry path for optimum response level is detected , ' <br /> to smoke approaching from any direction. A built-in ; ; <br /> screen prevents insects from entering the smoke , <br /> ch,ambers. -_--. ' <br /> - .. I <br /> Removal of the head is required for access to the � � . (� . <br /> address selection dip switch. This activity will result in a ` ' . ! . - <br /> trouble condition at the control panel to indicate any $°= , � j <br /> imprope'r removal or tampering A special locking screw � - '" <br /> secures�the head to its base, reducing the chances for � .-^"� ` � � �, `� ; <br /> vandalism and tampering on low ceiling height ' � ��,� <br /> applications. , � ' �"�">°`�i .. <br /> As mentioned in the base description, locating the dip � . �� _ � t� <br /> switch address selection in the base assembly allows � - � ! <br /> the head to be removed for replacement or cleaning . i <br /> without needing to be returned to the same base. This <br /> simplifies the maintenance effort and ensures that 2098-9576 � <br /> proper address locations are maintained IONIZATION DETECTOR <br /> PHOTOELECTRIC DETECTION � i <br /> i <br /> i <br /> I <br /> DESCRIPTION: � � <br /> , <br /> The 2098-9201 and -9202 detectors use a stable, ! <br /> pulsed LED light source with a silicon photodiode as the ; <br /> receiving element. Built-in electronic filtering and time � ! <br /> delay circuits combine with a sophisticated chamber � i � � <br /> 'design to form a highly accurate means of smoke � � <br /> �detection The 2098-9202 includes an integral 135`F y�' � f:�� <br /> fixed temperature heat element. ; � $ <br /> � <br /> i When'a predetermined smoke level is detected, that � _ j� '� <br /> �information is communicated to the base for further ; ; .- <br /> ;communication back to the control panel I , <br /> i � , ' <br /> � i i 2098-9201 , <br /> i � PHOTOELECTRIC DETIECTOR ; � <br /> I � <br /> � i � <br /> I � I <br /> I I � I <br /> i <br /> ' i <br /> I ' <br /> � 3 <br />