2451 Photoelectronic Smoke Detector  สำหรับตรวจจับควันไฟ ในอาคาร สำนักงาน หรือ โรงพยาบาล

Product OverView
 
Low standby current
Two visible LEDs “blink” in standby
and provide a 360° field viewing angle
Wide variety of mounting bases with built-in shorting spring
Detector head plugs easily into base
Built-in test switch
Field sensitivity metering of detector to meet the requirements of NFPA 72
Built-in tamper-resistant feature
SEMS screws for easy wiring
Optional recessed mounting
Removable cover and insect screen for field cleaning

Photoelectronic. All 400 Series photoelectronic smoke detectors contain an optical
sensing chamber designed to sense the presence of smoke particles produced by a
wide range of combustion sources. A custom integrated circuit incorporates signal
processing to reduce false alarms.

Specifications

Operating Voltage/Alarm Current:
Mounting base dependent (see chart
on page 2)

Standby Current:
Photo/Ion:
120 μA maximum
Thermal:
100 μA maximum

Sensitivity:
1.9% + ±6%/ft. Ion
3% + ±7%/ft. Photo

Weight:
1451, 2451, 2451TH:
0.5 lb. (227 gm)
5451:
0.3 lb. (136 gm)