Mô tả sản phẩm:
ĐẦU BÁO KHÓI QUANG CHO ỐNG THÔNG KHÓI, 4 DÂY, 24VDC/220V SYSTEM SENSOR D4120W Thông số kỹ thuật: Sản xuất theo tiêu chuẩn USA Hãng sản xuất: System Sensor Mã sản phẩm: D4120W - 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); 1/2 HP @ 240 VAC ; 1/4 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; 120 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; 120 VAC 50-60 Hz - Wiring : 4-wire |