SPC-24 - Beam Detector

by Hochiki America Corporation

View Hochiki America Corporation on TEKEN44

The Hochiki SPC-24 Projected Beam Smoke Detector consists of an emitter and receiver. The SPC-24 detector should be placed so that smoke generated by a fire will likely rise into the path of the beam. The receiver is constantly monitoring and measuring the intensity of the beam transmitted by the emitter. Should the smoke from a fire cause a decrease in the signal strength of a magnitude that exceeds the programmed obscuration setting, an alarm signal is generated. STANDARD FEATURES • Microprocessor based for reliability • Simple setup and alignment with signal strength LEDs • Provides 60 feet on center linear protection at a range of 32.8 feet to 328 feet • Automatic compensation for signal drift or dirty lens • Three field adjustable sensitivity settings • Form A alarm and Form B trouble contacts • Calibrated filters available to verify sensitivity (purchased separately) • Color-coded emitter (red) and receiver (green) labels for easy recognition • Adjustable to one of the three obscuration settings of 25%, 50% or 70% per span • Voltage and RF transient protection • External red LED when alarm condition is indicated