Page 25 - Avenger Submittal reduced

AS2012-00

Multi Criteria Sensor

Operation
Standard Features
The AS2012 chamber consists of a light-
• Low Profile - Only 2.0” high, including emitting diode (LED) and photodiode
base arrangement. The chamber is designed such
that light emitted by the LED cannot
• Simple and reliable device addressing normally reach the photodiode. In the event

• Automatic compensation for sensor of fire, particles of smoke enter the chamber
contamination and scatter the light. As the smoke level
increases, the scattering effect increases,
• Built-in fire test feature causing more light to hit the photodiode.
The chamber contains a unique design
• Uses the noise-immune Digital which allows smoke to enter the chamber
Communication Protocol (DCP), which while preventing external light from
utilizes interrupts for fast response to fires affecting the photodiode. The photodiode
• Two built-in power/alarm LEDs input level is sampled to sense smoke
density. When the smoke density exceeds a
• Programmable non-polling LEDs preset threshold the sensor transmits an

• Non-directional smoke chamber interrupt to the fire control panel indicating
a fire condition. The fire alarm control panel
• Vandal resistant security locking feature can adjust the sensor threshold to
compensate for contamination.
• Removable smoke labyrinth for cleaning
or replacement The AS2012 Heat portion incorporates a
highly linear thermistor circuit, with two
Application thermistors mounted externally. The
specially designed cover protects the
The AS2012 Multi-Criteria Sensor is particularly thermistors while allowing maximum air
suited for detecting smoke produced by a wide flow. The thermistor circuit produces a
range of combustibles found in various voltage proportional to temperature which is
applications. Temperature monitoring is scaled, and transmitted as a digitally
achieved by a thermistor placed for optimum encoded value to the control panel. When
sensitivity. Avenger’s unique design allows fast the ambient temperature exceeds a
response to flaming fires as well as smoldering preprogrammed threshold (fixed
fires while minimizing false alarms. temperature), the sensor transmits an
interrupt to the control panel indicating a fire
alarm. The fire alarm control panel can adjust
Note: the sensor threshold for different standard’s
requirements.
Bases are not included Up to 127 devices are permitted on each SLC

with detectors, please loop. A sensor address can be set by a hand-
held programming unit. The sensor mounts
order separately. 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.

Fire Detection System by Avenger, Las Vegas, Nevada 89141 U.S.A. I Phone: 1-702-513-4654
info@avengersystems.com I www.avengersystems.com
VERSION 3.01 - 2017/09