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The Lifeco LE-ALG-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 smoulder and produce large visible smoke particles.  Lifeco’s unique design allows fast response to flaming fires as well as smoldering fires while eliminating false alarms.
 

دتکتور دودی آدرس پذیردودیALG-V|لایفکو

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 photo- diode.  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 loop. A sensor address can be 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 LEd’s for easy viewing of sensor status.
The contractor shall furnish and install where indicated on the plans, photoelectric sensors Lifeco LE-ALG-V. The combination sensor head and twist lock base shall be UL listed compatible with a UL listed fire alarm control panel.
The base shall permit direct interchange with the Lifeco LE- ATG-EA heat sensor.  The sensitivity of the sensor shall be capable of being measured by the control panel.
The vandal-resistant, security locking 

 

دتکتور دودی آدرس پذیردودیALG-V|لایفکو

برند سیستم اعلام حریق لایفکو | Lifeco
کد محصول FA-ADD-lifeco-DETS-ALG-V
وزن 200 گرم

نقد و بررسی دتکتور دودی آدرس پذیردودیALG-V|لایفکو

 
• Low Profile - Only 1.97” high, including base
• Simple and reliable device addressing method
• Automatic compensation for sensor contamination
• Built-in optical fire test feature
• Uses the noise immune digital Communication Protocol (dCP), which utilizes interrupts for fast response to fire

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