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ĐẦU BÁO KHÓI QUANG CHO ỐNG THÔNG KHÓI, 4 DÂY, 24VDC/220V SYSTEM SENSOR D4240 Thông số kỹ thuật: Sản xuất theo tiêu chuẩn USA Hãng sản xuất: System Sensor Mã sản phẩm: D4240 Air Duct Velocity : 100 to 4000 ft./min. (0.5 to 20.32 m/sec) Alarm Auxiliary Contacts DPDT : 10A @ 30 VDC (resistive); 10A @ 250 VAC (resistive); ½ HP @ 240 VAC ; ¼ HP @ 120 VAC Alarm Current: 65 mA @ 24VDC 135 mA RMS @ 24VAC 60Hz 35 mA RMS @ 120VAC 60Hz Alarm Initiation Contacts : 2.0A @ 30 VDC (resistive) Alarm Response Time : 15 sec. Dimensions : Rectangular: 14.38 in (37 cm) L; 5 in (12.74 cm) W; 2.5 in (6.36 cm) D Square: 7.75 in (19.7 cm) L; 9 in (22.9 cm) W; 2.5 in (6.36 cm) D Input Capacitance : 270 μF max. Operating Humidity Range : 0% to 95% relative humidity non-condensing Operating Temperature Range : -4°F to 158°F (-20°C to 70°C) Power Supply Voltage : 20-29 VDC; 24 VAC 50-60 Hz; 240 VAC 50-60 Hz Power Up Time : 35 sec. max. Reset Time by Power Down : 0.6 sec. max. Reset Time w RTS451 : 0.03 to 0.3 sec. Reset Voltage : 3.0 VDC min.; 2.0 VAC min.; 10 VAC min. Shipping Weight : 2.5 lbs. (1.14 kg) Standby Current : 21 mA @ 24VDC 65 mA RMS @ 24VAC 60Hz 20 mA RMS @ 120VAC 60Hz Storage Temperature : -22°F to 158°F (-30°C to 70°C) Voltage Range : 20-29 VDC; 24 VAC 50-60 Hz; 240 VAC 50-60 Hz Wiring : 4-wire |