ขาย เครื่องตรวจจับควัน 4 สายพร้อมเอาท์พุท DC9-35V สําหรับตรวจจับบุหรี่ ราคาที่ดีที่สุด

4-wire Smoke Detector with Relay output smoke alarm with Dry contact DC9-35v This product named Photoelectric smoke detector(hereinafter called detector) detects the smoke by a couple of infrared diodes. The principle of detecting is granule in the smoke can reflect infrared light. Infrared diodes are placed in the special chamber. The chamber can shield external light, but doesn't affect the smoke into it. While there is no smoke, the diode can receive very weak infrared light. When the smoke entering the chamber,diode can receive more and more light,and the detector can give out alarm signal when the smoke attains the certain density. In order to reduce the interference and lower power consumption, the emitting circuit adopts the pulse signal. Grey Detector TECHNICAL SPECIFICATION PRODUCT CATEGORY 4wire OPERATING VOLTAGE DC9-35V STANDBY CURRENT >200uA @DC24v ALARM CURRENT > 10mA ALARM INDICATION RED LED ON TEMPERATURE RANGE -10℃~+50℃ HUMIDITY 0%~95%RH(NO CONDENSATION) ALARM OUTPUT Remote LED RELAY OUTPUT CONTACT RATING N/A 100mA@DC 28V SENSITIVITY 0.5dB/m(±0.1dB/m) DIMENSION 104 * 53mm Connection Description 4 wire smoke detectors : base terminals“ 1” and “2” for DC power input , .“3” for relay output com,“4” for relay output N.C. or N.O. White Detector TECHNICAL SPECIFICATION Operating Voltage Range: 9 to 28 VDC Volts Non-polarized Standby Current: ≤200μA Maximum Alarm Current (LED on): ≤45mA Alarm Relay Contact Ratings: 1A@ 24V DC Operating Humidity Range: ≤95%RH(40°C±2°C) Relative Humidity, Non-condensing Operating Temperature Range: -10°C to 50°C (14°F to 122°F) Smoke Alarm Sensitivity: 0.15～0.3dB/m(with smoke sensor) Temperature Alarm Sensitivity: 57°C (135°F) (with heat sensor) Heat alarm class: A2R ( with heat sensor) Sounder >80dB.(Optional) Height: 55 mm installed in Base Terminals function description: Terminal 1: Relay Output -COM Terminal 2: Relay Output – NO/NC (default NO) Terminal 3: DC Power – Terminal 4: DC Power +(9V-28VDC) Diameter: 103 mm