Analog Addressable
Laser Smoke Sensor
The Gamewell-FCI, Model ASD-LS, is a low profile laser
smoke sensor that adds another new dimension to analog
addressable fire detection. It incorporates laser smoke
detection technology that provides unsurpassed sensitivity
and response to maximize detection. This feature makes
the sensor ultra-sensitive to smoke, as much as 100 times
more sensitive than conventional photo-electric smoke
detection technology.
An innovative laser diode and precision optics design
combine with an array of integral software tools to allow
the sensor to quickly identify the fire. The sensor can
swiftly sense smoldering fires, but yet can sense the
smallest particles of combustion, providing a faster
response to flaming fires.
The early warning capability of the ASD-LS is comparable
to that of Aspiration Technology, while unlike Aspirating
Systems, the ASD-LS can pin-point the location of the fire.
The sensor is continually monitored to measure any
change in its sensitivity due to the environment (dirt, temperature, transient smoke, humidity, etc.). Patented algorithms distinguish between particles of dust and smoke.
The focused beam of the laser light source minimizes
reflection from accumulated dust in the optical chamber,
effectively minimizing problems caused by dust build-up.
The software performs its own independent analysis of the
sensor signal. This analysis includes dust spike rejection,
drift compensation, smoothing, multi-sensor, pre-alarm
decision and alarm decision. In the event of spikes in the
signal, the sensor will check the output of adjacent sensors for any appreciable signal to determine if the spike is
caused by a fast flaming fire.
The sensor is a plug-in construction and is directly interchangeable in the same base with the Gamewell-FCI,
ASD/ATD/Acclimate Series low-profile sensors. A wide
variety of bases, with sounder, relay, etc. is available. The
Remote LED annunciator capability is also available as an
optional accessory.
• Compatible with Gamewell-FCI Analog Addressable
Control Panels.
• Operates in the Velociti® or CLIP mode.
• High Sensitivity for both smoldering and fast flaming
• Includes patented algorithms that ignore transient
smoke and dust particles.
• Provides low profile construction and an easy plug-in of
the head to base.
• Offers the following built-in features:
- Signal processing
- Tamper-resistant
- Test switch
• Supports a remote test feature (originating from the
The ASD-LS sensor is Listed for use inside ducts up to a
velocity of 4,000 FPM.
• 360° view angle of dual alarm LEDs.
An optional isolator base, Model B224BI, is also available.
Installation of two of these isolator bases allows Style 7
operation for sensors located electrically between the
• Maximum air velocity 4,000 FPM.
• Optional bases for auxiliary functions.
Velociti is a registered trademark of Honeywell International Inc.
3023594 7272-1703:0114
12 Clintonville Road, Northford, CT 06472-1610 USA • Tel: (203) 484-7161 • Fax: (203) 484-7118
Specifications are for information only, are not intended for installation purposes, and are subject to change without notice. No responsibility is assumed by Gamewell-FCI for their use.
9020-0525 Rev. G page 1 of 2
©2015 by Honeywell International Inc. All rights reserved.
Place the sensor into the sensor base. Turn the sensor
clockwise until the sensor locks into place.
Operating Voltage:
Standby Current:
Alarm Current (max.):
Operating Humidity:
To use the tamper-proof feature, break the smaller tab on
the base as shown in the installation instructions. Install
the sensor. To remove the sensor from the base when
using the tamper-proof feature, insert the blade of a small
screwdriver into the hole on the side of the base and push
the plastic lever away from the detector head. This will
allow the sensor to be rotated counterclockwise for
NOTE: When you use the tamper-proof feature, remove
the decorative ring before removing the head.
For information on spacing, the location of the sensors and
other guidelines, refer to NFPA72, Chapter 5-3 “Smoke
Sensing Fire Detectors.”
.02 - 2.0%/ft.
15-32 VDC
.00033 amp @ 24 VDC
.0065 amp @ 24 VDC
32° to 100° F (0° to 38° C)
10% to 93% relative humidity
1.7” (4.3 cm) height
4.1” (10.4 cm) installed in the B501
6.1” (15.5 cm) installed in the
B210LP base
5 oz. (142 gm.)
Ordering Information
Sensors may be tested locally in the following ways:
A. Place a test magnet against the sensor housing per
the instructions. The sensor should go into alarm
within 30 seconds.
B. Aerosol Generator - The Gemini Model 501 aerosol
generator may be used to perform a Functional Test.
This test should be performed immediately following
the Magnet Test. The Magnet test initiates an approximately ten minute period when the detector's signal
processing software routines are not active. Failure to
first perform the Magnet Test will introduce a time
delay before the detector alarms. Follow instructions
in the Generator Instruction Manual.
Cleaning programs should be adapted to the individual
environment in conformance with the National Fire Alarm
Code, NFPA, 72. We recommend, at the least, an annual
cleaning of the unit. The sensor screen and cover assembly can be removed, revealing the sensing chamber. A
vacuum cleaner can be used to remove the dust from the
screen, cover and sensing chamber. For the complete procedure, refer to the Installation and Maintenance Instructions furnished with each sensor.
Part Number Description
Low Profile Analog Laser Sensor
Plug-in sensor base without flange
Dimensions: 4.1” (10.4 cm) diameter
Flanged mounting base
Dimensions: 6.1” (15.5 cm) diameter
Flanged mounting base bulk pack
Dimensions: 6.1” (15.5 cm) diameter
Plug-in sensor base with auxiliary relay,
SPDT, rated 2 amps. @ 30 VDC (resistive)
2 coil latching relay 1 Form C Contact UL/
CSA Rating:
0.9 A @ 125 VAC inductive
0.9 A @ 110 VDC inductive
3 A @ 30 VDC resistive
Dimensions: 6.1” (15.5 cm) diameter
Plug-in sensor isolator base for Style 7
Dimensions: 6.1” (15.5 cm) diameter
Intelligent sensor sounder base
Dimensions: 6.875” (17.5 cm) diameter
Standard sounder base, UL 864 9th Edition
compliant, ULC Listed
Dimensions: 6.875” (17.5 cm) diameter
Remote LED Annunciator
Extractor Test
12 Clintonville Road, Northford, CT 06472-1610 USA • Tel: (203) 484-7161 • Fax: (203) 484-7118
9020-0525 Rev. G page 2 of 2
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