2800 SYSTEMSENSOR | Alldatasheet
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a ) in MODEL igi! PHOTOELECTRONIC —> SMOKE DETECTORS FOR @ ry SYSTEMS APPLICATIONS ae St eR a Ok BRK ELECTRONICS World's Largest Manufacturer of Smoke Detectors 3 2800 Series / r ~ = »— > 2-Wire Systems \\ 7 ) ‘ / (QUINN) | e Compact, Stylish Design (KE >) IF © Geometrically Optimized (G Cy yp Photoelectronic Sensing Chamber | —— fe . = © Designed for Direct Surface or @ Electrical Box Mounting ¢ Unique New Optical Sensing Chamber © Built-in Thermal Available —Superior Signal-to-Noise Ratio (2.0) ¢ Convenient Terminal Strip Wiring —Stable Photoelectronic Operation ¢ Built-in Test Capability —2.3% Nominal Sensitivity ¢ Visual Alarm Indication —Built-in Signal Processing ¢ Remote LED Option © 10-29VDC Operating Range ¢ Low Standby Current ¢ Twist-on Mounting Bracket with Tamper Listed to UL 268 Option for Easy Installation ¢ Insect Screening BRK’s new 2800 Series detectors are designed to _units. It can, therefore, be set less sensitive and be more responsive than conventional detectors further from the threshold of alarm than the to a broader range of fires and at the same time chambers of most competitive detectors. This com- offer maximum stability. They're compact, attrac- _ bination of high signal-to-noise ratio and stable sen- tive and easy to install. sitivity setting gives 2800 Series detectors remarkable stability over a wide range of environ- These detectors operate on the light scattering prin- mental conditions. The detectors also have a ciple and feature a unique photo-optic sensing custom integrated circuit that uses signal process- chamber that provides good smoke entry while ing for alarm verification. In standby mode the 2800 minimizing the effects of ambient light. The Series infrared LED is designed to pulse once every chamber has carefully designed geometry which _ eight seconds, but, when smoke is detected, this maximizes signal strength and signal-to-noise ratio sampling rate accelerates to once per second. (2.0 nominal). It is more responsive to fast flaming | Three successive positive samplings are required fires (the most difficult for photoelectronic detec- before detectors can alarm, and this significantly tors) than the chambers used in most competitive increases its immunity to nuisance alarms.
BRK’s new 2800 Series Detectors are more responsive than competitive units to a broader range of fires! Ez --- i 2800 Series detectors are designed for is given by an LED on the detector cover. I rx ck systems use with UL cross-listed control This visible alarm signal may be remoted % ) panels having 2 wire initiating device loops. by using BRK’s Remote Alarm Lamp i wi ‘Two models are available — the 2800 and assembly. Be : > i the 2800TH nh has a built-in heat Easy to install, clean and maintain, these a | - detector Both versions operate between detectors are designed for direct surface we : = 2 10-29 VDC and draw only 100 microamps — mounting or for mounting to most boxes up X % @. —~ (typical) during normal operation, The sen- to 4” octagonal. Twist-on mounting bracket oe ae a tom sitivity of the detectors is Libri at the ue with tamperproof option included. The units Patan SY >a tory and ee fot eee a sei inthe also feature convenient terminal strip wiring. field. A solid state voltage regu a main- For installation and maintenance instruc- a tains detector sensitivity over a wide range tions, see the 156-155-XX Manual. For loca- Unique new photo optic chamber and easy testing without sophisticated test asst ‘Applications Manual for System features high sional to-notee ratio. equipment. A visual indication of an alarm STOKe Detectors: for remarkable stability. quip! +. Architectural/Engineering Specifications EEE The detector shall be of the photoelectronic type. Its sen- sor shall have a nominal sensitivity of 2.3% as measured
2800 Series 2 Wire Photoelectronic Smoke Detectors Ih 8 Et aipsks Rox, Ane & Gignalic noise) talc Gf 20
nominal. It shall be possible to perform a functional test on Specifications 2800 2800TH the detector without the need of generating smoke. The test Control Panel Applications , 2-wire 2-wire method shall be capable of testing sensitivity of 1% and 3% Visual LED Looal Alarm , ... X x The detector shall incorporate a solid state voltage regulator ON res x which can ‘maintain detection sensitivity over an input Bperating Vollige Fangs: AOBADGva, TOBNBO.Ay voltage range of 10-29 VDC. Current limiting shall protect ‘Gurranéiinite: ne ifelector: against power surges end nolge pesiection shall be provided so the detector can be wired without con- on A ientethice Gnesi duit where codes allow. Standby current shall be 100 xamps (_) power leads power leads direct surface mounting or mounting to a 4” octagon box. The bracket shall have a tamper proof option. NOTE: Two-wire control panels must limit current to 300mA or less. A visual indication of an alarm shall be provided by a latch- ing light emitting diode (LED) on the detector which may be seen at ground level. The visible alarm signal shall be EE 2)2b1e of romote LED annunciation, FLUSH MOUNTING ON “4” OCTAGON BOX TAMPER SLOT _ ntaupen “Ty 1 a TAB — O [ Test gwircn = pia rN { PRA \\\\ \\ { iy i ALAR LED SS; How to Order — 2800 — Photoelectronic Detector, 2 Wire, Surface Mount. (Mounting bracket included.) 2800TH — Photoelectronic Detector with built-in 135° Fixed Temperature Thermal, 2 Wire, Surface Mount. (Mounting Bracket included) 156-210-XX — Applications Manual for System Smoke Detectors. 669-00 — Remote Alarm Lamp (LED) Assembly with Rectangular Mounting Plate. Distributed by: C System Sensor Division
780 McClure Road
Aurora, Illinois 60504 Printed in US.A. ©2800 9188