Fike Hochiki SPB-24N Projected Beam Smoke Detector (1)

SPB 24N PROJECTED BEAM SMOKE DETECTOR HOCHIKI America SPB 24N Projected Beam Smoke consists of an emitter and receiver The beam smoke detector should be placed so smoke generated by a fire will likely rise into the of the beam The receiver is constantly monitoring measuring the intensity of the beam transmitted by emitter Should the smoke from a fire cause a in the signal strength of a magnitude that the programmed obscuration setting an alarm is generated SPB 24N Projected Beam Smoke Detector can vital fire detection in applications where other type may not be able to respond quickly or at all a fire condition Examples of some applications where beam smoke detectors have been successfully include gymnasiums theatres museums tunnels churches stables chambers high air velocity areas The HOCHIKI America SPB Projected Beam Smoke Detector may also be used conjunction with more traditional spot type smoke devices to provide an even more comprehensive system more information on how to install the HOCHIKI SPB 24N Projected Beam Smoke Detector consult the Installation Instruction Guide and the applicable NFPA for additional guidance near infrared pulsed beam generated by the emitter sensed by the photodiode of the receiver where it is into an electrical signal This signal is then and applied via an analog to digital converter a microprocessor The normal state signal the initial data once stored in the microprocessor is used reference for comparison with subsequent beam there is a difference between actual beam strength stored reference data that exceeds the programmed LISTINGS Laboratories S1383 Mutual OD8A1 AY 7260 0410 141 on back latest revision at www hochiki com FEATURES Microprocessor based for reliability Simple setup alignment with signal strength LED Provides 60 foot on center linear protection at a range of 32.8 feet to 328 feet Automatic compensation for signal drift or lens Three field adjustable sensitivity settings Form A alarm and Form B trouble contacts Calibrated filters available to verify sensitivity Color coded emitter and receiver labels for recognition Voltage Voltage Current Current Current Temperature 33VDC 24VDC 24VDC 24VDC F 122 F Test Feature Manufacturers test filters Tall Wide Deep mount or Gang Box subject to change without notice America Corporation Village Drive Suite 100 Buena Park CA 90621 2268 714 522 2246 Fax 714 522 2268 Support 800 845 6692 or technicalsupport hochiki com continued obscuration reference level a fire signal is produced A trouble signal is generated if the beam is more than 90 as opposed to partially obscured by smoke microprocessor also provides compensation for a change in received signal value with time caused by contamination the optics Since such a change with time appears as a slow change in the beam signal the microcomputer in such a manner that the signal moves closer to the reference data at a rate approximately 1 per When this compensating capability reaches a limit the microcomputer automatically generates a trouble signal calibrated test filter is available upon request to test and verify the sensitivity setting of the projected beam smoke SPECIFICATIONS contractor shall furnish and install where indicated on the plans HOCHIKI America SPB 24N Projected Beam Detector The detector shall have a range of 32.8 feet to 328 feet The projected beam smoke detector shall be adjustable to one of the three obscuration settings of 25 50 or 70 per span These settings shall be capable being verified with calibrated filters Side to side spacing shall be a maximum of 60 feet on center projected beam smoke detector shall posses circuitry that automatically compensates for normal ambient changes the intensity of the emitted beam strength The microprocessor shall provide compensation for a change in received value with time caused by contamination of the optics Since such a change with time appears as a slow in the beam signal the microcomputer compensates in such a manner that the signal moves closer to the data at a rate of approximately 1 per hour When this compensating capability reaches a limit the automatically generates a trouble signal projected beam smoke detector s shall also signal a trouble condition if the beam has a blockage of 90 or more 20 seconds and automatically resets to normal when blockage is removed projected beam smoke detector s shall be UL listed for these applications Voltage and RF transient protection be integral to the internal circuitry of the projected beam smoke detector so as to minimize false alarm potential facilitate easy installation and setup the projected beam smoke detectors shall employ signal strength indicating Alignment shall be facilitated by turning an alignment adjustment wheel and monitoring the relative signal based upon which LEDs are illuminated detectors shall also illuminate a red LED which is visible externally when an alarm condition is indicated projected beam smoke detector shall provide a Form A dry contact for alarm and Form B dry contact for trouble HOCHIKI America SPB 24N Projected Beam Smoke Detector shall be installed in accordance with the Installation Guide provided with every unit Refer to the applicable NFPA Standards for additional guidance on spacing ceiling surfaces and other design considerations WIRE CONNECTION TO THE CONTROL PANEL Emitter E1 Emitter E1 End of line relay and trouble contacts are closed when power is applied of Line EOLR 24 required power supervision America Corporation SPB 24N subject to change without notice