Ningbo SD-602 Product Introduction
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MANUAL FOR PHOTOELECTRIC SMOKE DETECTORPRODUCT INTRODUCTIONThis product named Photoelectric smoke detector (hereinaftercalled detector) detects the smoke by a couple of infrared diodes.The principle of detecting is granule in the smoke can reflectinfrared light. Infrared diodes are placed in the special chamber.The chamber can shield external light, but doesn’t affect the smokeinto it. While there is no smoke, the diode can receive very weakinfrared light. When the smoke entering the chamber, diode canreceive more and more light, and the detector can give out alarmsignal when the smoke attains the certain density. In order toreduce the interference and lower power consumption, the emittingcircuit adopts the pulse signal. The product in accordance with thenetworking approach is divided into 2-wire and 4-wire detectors.PRODUCT FEATURE● STRONG ADAPT ABILITY FOR CIRCUMSTANCE● SMT DESIGN, HIGH STABILITY● 9-35VDC WIDE VOLTAGE● METAL SHIELD, ANTI-RFI & ANTI-EMI● LOW STANDBY CURRENT● POWER SUPPLY NON-POLARIZED INPUT● FLASHING LED POWER INDICATOR● ALARM RELAY N.C./N.O.OPTIONAL (4 WIRE)● REMOTE LED INDICATOR OUTPUT (2 WIRE)TECHNICAL SPECIFICATIONPRODUCT CATEGORY 2 WIRE 4 WIREOPERATING VOLTAGE DC 9V~35VSTANDBY CURRENT 55uA 100 uA (relay NO)12 mA (relay NC)ALARM CURRENT 20-25 mA @12V40-50 mA @24V12-16 mA(relay NO)3-5 mA (relay NC)ALARM INDICATION RED LED ONTEMPERATURE RANGE -10℃~+50℃HUMIDITY 0%~95%RH (NO CONDENSATION)ALARM OUTPUT REMOTE LED RELAY OUTPUTCONTACT RATING N/A 0.5A@DC28VSENSITIVITY 0.15dB/m (+/-0.03dB/m)STANDARD EN54-7,UL268DIMENSION 100mm diameter*46mm deep |
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