Before Installing; General Description; Special Applications - System Sensor BEAM200A Installation And Maintenance Instructions Manual

Specifications (continued)
Electrical
Voltage: 15 to 32 VDC
Standby Current: Avg. Standby:
External Supply
(BEAM200SA only):
Remote Output:
(alarm)

Before Installing

Please thoroughly read this manual and applicable sections
of System Sensor's Projected Beam Detector Application
Guide. Copies of this manual are available from System
Sensor.

General Description

System Sensor Model BEAM200A/BEAM200SA is a long range
projected beam smoke detector designed to provide open area
protection. It is to be used with ULC-listed compatible control
panels only. The detector consists of a transmitter/receiver unit
and a r eflector. S moke e ntering t he a rea b etween t he t ransmitter/
receiver and reflector causes a reduction in signal. When the
obscuration r eaches a larm t hresholds ( chosen a t t he t ransmitter/
receiver unit), the detector generates an alarm signal. Complete
blockage of the beam causes a trouble signal. Slow changes in
obscuration due to a build up of dirt or dust on the lens of the
detector are compensated for by a microcontroller that continu-
ously monitors the signal strength and periodically updates the
alarm and trouble thresholds. When the self-compensation
circuit reaches its limit, the detector generates a trouble signal,
indicating the need for service.
Three LEDs on the detector indicate the current status: a
red LED for alarm, a yellow LED for trouble, and a blinking
green LED for standby operation. Note: The panel controls
the status of the red and green LEDs. The local reset but-
ton is accessible by removing the outer paintable trim ring.
The yellow LED will blink in specific patterns to provide a
diagnostic aid when diagnosing the cause of a trouble signal.
Trouble signals automatically reset upon removing the cause
of trouble. In addition to these indicators, there is a dual digi-
tal display that reads 00 to 99. This display is used to indi-
cate the signal strength of the beam in alignment mode and
to indicate the sensitivity setting of the detector in percent
obscuration when setting the sensitivity of the detector. No
additional equipment is needed for alignment of the beam.
D400-74-00
(1 communication every 5sec, LED flashing, SLC @ 24V)
Max. Alarm (LED on):
Max. Trouble (LED on):
Max. Alignment:
Voltage: 15 to 32 VDC
Current: 0.5A Max.
Voltage: 15 to 32VDC
Note: Output voltage same as device input voltage.
Current: 15mA maximum
6mA minimum
Note: Output current is limited by 2.2Kohm resistor
2mA Max.
8.5mA Max.
4.5mA Max.
20mA Max.

Special Applications

Due to the inherent capabilities of projected type beam
detectors they are often installed in locations where spot-
type detection is impractical. Projected type beam smoke
detectors are ideally suited for environmental conditions
that might include high ceilings, dusty and dirty envi-
ronments, or environments that experience temperature
extremes. Often these conditions present special problems
for the installation of spot-type detectors and even greater
problems for their proper maintenance. Due to the inherent
flexibility of mounting locations and large coverage area of
projected type beam detectors often the conditions above
can be addressed or minimized.
Some examples of applications for beam detectors might
include freezers, aircraft hangars, cold storage warehouses,
shipping warehouses, enclosed parking facilities, sporting
arenas and stadiums, concert halls, barns, or stables. Some
of these environments might be considered to hostile for
spot-type smoke detectors. If the environment is consid-
ered to be hostile then the colder alarm threshold settings
should be used.
Before installing the transmitter/receiver unit or reflector
in these types of applications special consideration should
be given to insure proper operation of the beam detector.
The beam detector should not be installed in environments
where there is no temperature control and condensation or
icing is likely. Condensation or icing of the reflector surface
or the outer surface of the transmitter/receiver unit will
obscure the light beam resulting in a false alarm. If elevated
humidity levels and rapidly changing temperatures can be
expected then condensation will likely form and the appli-
cation should not be considered acceptable for the beam
detector. The beam detector should not be installed in
locations where the transmitter/receiver unit, the reflector,
or the optical pathway between them may be exposed to
outdoor conditions such as rain, snow, sleet, or fog. These
2 I56-2542-00R