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B402B PDF预览

B402B

更新时间: 2022-12-20 08:57:24
品牌 Logo 应用领域
GAMEWELL-FCI 光电
页数 文件大小 规格书
2页 60K
描述
Photoelectronic Detector

B402B 数据手册

 浏览型号B402B的Datasheet PDF文件第2页 
2451  
SYSTEM SENSOR  
PHOTOELECTRONIC  
SMOKE DETECTOR  
DESCRIPTION  
The System Sensor 2451 Series photoelectronic smoke de-  
tectors are specifically designed to meet the performance re-  
quirements of fire detection/alarm systems. The 2451 and  
2451T detectors use state-of-the-art optical sensing cham-  
bers and are designed so that LED failure will not cause an  
alarm. The detectors are designed to provide open area detec-  
tion and when installed in a two-wire base are compatible  
with FCI fire alarm control panels. The detectors operation  
and sensitivity can be tested in place. The Model 2451T unit  
has the same specifications as the Model 2451, but also fea-  
tures a built-in fixed temperature (135o F) thermal detection  
unit.  
The detectors are of plug-in construction and plug into the  
same base as the 1451 series ionization smoke detectors,  
making both models interchangeable. Bases are available for  
two-wire, four-wire, and 120 VAC four-wire operation.  
Two visible LEDs on each detector flash every ten seconds  
indicating that power is being applied to the detector. The  
LEDs light steadily when the detector is in alarm. A remote  
LED annunciator is available as an optional accessory.  
The 2451 is ULListed for mounting inside ducts up to a ve-  
locity of 3,000 FPM.  
Sensitivity testing is performed either by applying a test  
magnet or inserting a calibrated test card according to the test  
procedures. Field metering of detector sensitivity may be  
performed with the aid of a voltmeter and Test Kit,  
MOD 400R.  
FEATURES  
· Easy plug-in of the Head to Base  
· Built-in Tamper-resistant Feature  
· Built-in Test Switch  
· Built-in Visual Alarm Indicators  
o
· 360 View Angle Of Alarm LEDs  
· Compatible with FCI Control Panels  
· Field Metering of Detector Sensitivity  
APPROVALS  
· Removable Insect Screen and Cover  
for Field Cleaning  
· Sealed against Dirt, Insects, and  
Back Pressure  
· Insect-resistant screening  
(.020"/.508 mm openings)  
TECHNICAL SPECIFICATIONS  
Nominal sensitivity  
Operating voltage  
Operating temperature  
Operating humidity  
Air velocity  
3.0 %/ft.  
8.5 - 35 VDC (24 VDC nominal)  
32o to- 120o F (0o to 49o C)  
0 % - 93 % relative humidity  
3,000 feet per minute maximum  
Off-white flame retardant plastic  
6.2 inches (15.7 cm)  
Construction  
Diameter  
Height  
3.3 inches (8.2 cm)  
Weight  
0.5 lb. (277 g)  
16 Southwest Park, Westwood, MA 02090 USA TEL: (781) 471-3000 FAX: (781) 471-3099  
An ISO 9001 Certified Company  
9020-0585/Ver. 1.1  

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