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1451 PDF预览

1451

更新时间: 2024-10-28 06:16:07
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SYSTEMSENSOR /
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4页 170K
描述
Plug-in Smoke Detector

1451 数据手册

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C o n v e n t i o n a l  
D e t e C t i o n  
400 Series  
Plug-in Smoke Detector  
Models Available  
1451  
1451A  
Ionization Detector  
Ionization Detector,  
ULC Listed  
5451  
Thermal Rate-of-Rise  
Product Overview  
Low standby current  
System Sensor’s 400 Series plug-in smoke detectors are designed to meet the  
performance criteria designated by UL/ULC. The ion units have a sensing chamber  
sealed from back pressure air flow, dirt, and insects. This chamber is protected  
by a fine mesh screen which can be cleaned or replaced. Additional key features  
include a recessed mounting option, interchangeable ion, thermal detectors, a vari-  
ety of mounting bases, and a full line of optional accessories.  
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  
Ionization. All 400 Series ionization smoke detectors include a specially designed dual  
source, dual unipolar detector chamber design which will sense the presence of smoke  
particles produced by fast combustion as well as slow smoldering fires. This chamber  
exhibits increased stability, significantly reduces nuisance alarms, and provides better  
performance at higher air velocities.  
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  
Thermal. The 400 Series thermal rate-of-rise with fixed heat detector contains a  
unique dual thermistor heat sensing circuit to provide maximum performance and  
solid state reliability. The Model 5451 is designed to initiate an alarm at 135°F and  
to respond to a temperature increase in excess of 15° per minute. This enables the  
heat detector to communicate an alarm to the central control panel prior to reaching  
the static set point for these high rates of rise, providing a timely response to both  
rapid and slow temperature increases. This model should be used in applications  
where rapid response is desired and where rapid temperature increases would only be  
caused by a fire emergency.  
Removable cover and insect screen for  
field cleaning  

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