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FIRE ALARM ALN-V PHOTOELECTRIC SMOKE SENSOR - HOCHIKI

Rp. CALL
Last Updated
21 Sep 2021
Minimum Order
1 Unit
Category
HOCHIKI

Specification of FIRE ALARM ALN-V PHOTOELECTRIC SMOKE SENSOR - HOCHIKI

ALN-V PHOTOELECTRIC SMOKE SENSOR



 



The contractor shall furnish and install where indicated



on the plans, photoelectric sensors Hochiki



America Model ALN-V. The combination sensor



head and twist lock base shall be UL listed compatible



with a UL listed fire alarm control panel.



 



APPLICATION



 



The Hochiki America ALN-V Photoelectric Smoke Sensor



is particularly suited to detecting optically dense smoke



typical of fires involving materials such as soft furnishings,



plastic, foam or other similar materials which tend to



smolder and produce large visible smoke particles.



Hochiki's unique design allows fast response to flaming



fires as well as smoldering fires while preventing false



alarms.



 



ENGINEERING SPECIFICATIONS



 



Operating Voltage 17-41 VDC



Standby Current 450μA



Alarm Current 540μA



Transmission Method DCP - Digital



Communication Protocol



Maximum Humidity 95% RH Non-Condensing



UL Temperature Range 32°F to 115° F



(0° C to 47° C)



Operating Temperature 14°F to 122° F



Range (-10° C to 50° C)



Sensitivity Range 0.7 - 4.0%/FT@300FPM



0.7 - 3.86%/FT@2000FPM



0.7 - 2.65%/FT@4000FPM



Air Velocity Range 0-4000 fpm



Color & Case Material Bone / White - ABS Blend



Weight 3.4oz (5.1 oz. with 4" base)



Bases YBN-NSA-4, HSB-NSA-6,



ASB, SCI-B4 and SCI-B6



 



The detection chamber consists of a light-emitting diode



(LED) and photodiode arrangement. The chamber is



designed such that light emitted by the LED cannot



normally reach the photo diode. In the event of fire,



particles of smoke enter the chamber and scatter the



light. As the smoke level increases, the scattering effect



increases, causing more light to hit the photodiode. The



chamber contains a unique baffle design which allows



smoke to enter the chamber while preventing external



light from affecting the photodiode. The photodiode input



level is sampled to sense smoke density.



When the smoke density exceeds a preset threshold



the sensor transmits an interrupt to the fire control panel



indicating a fire condition. The fire alarm control panel



can adjust the sensor threshold to compensate for



contamination.



Up to 127 devices are permitted on each SLC loop. A



sensor address is set by a hand-held programming unit.



The sensor mounts to an electronics-free base and



incorporates a locking mechanism for secure installation.



The base provides mounting slots, terminals for field wiring



and a third contact for a remote indicator/LED. The sensor



incorporates dual LEDs for easy viewing of sensor status.



 



OPERATION



• Low profile - Only 2.00" high, including base



• Simple and reliable device addressing



• Automatic compensation for sensor contamination



• Built-in fire test feature



• Uses the noise-immune Digital Communication



Protocol (DCP), which utilizes interrupts for fast



response to fires



• Two built-in power/alarm LEDs



• Programmble non-polling LEDs



• Non-directional smoke chamber



• Vandal resistant security locking feature



• Removable smoke labyrinth for cleaning or



Replacement



 



 


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Untuk keterangan lebih lanjut, silahkan download PDF ini :

d5c22f0e-27b9-42f5-b46a-39791b38f807.pdf

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