System Sensor FSB-200, FSB-200S Installation And Maintenance Instructions Manual
INSTALLATION AND MAINTENANCE INSTRUCTIONS
FSB-200, FSB-200S
Single-ended Reflected Type
Projected Beam Smoke Detector
Specifications
General
Range: 16 to 230 Feet (5 to 70m)
230 to 328 Feet (70 to 100m) using optional accessory BEAMLRK
Sensitivity: 25% to 50% Total Obscuration in 6 levels
Level 1 = 25%
Level 2 = 30%
Level 3 = 40%
Level 4 = 50%
Level 5 = 30% to 50% (Acclimate)
Level 6 = 40% to 50% (Acclimate)
Spacing: 30 to 60 Feet (9.1 to 18.3m)
Response Time: Alarm: 20 seconds typical
Trouble: 30 seconds typical
Trouble Conditions: Beam Blockage (96% or More Obscuration)
Improper Initial Alignment
Self-compensation limit reached (service needed)
In Alignment mode
Test/Reset Features: Integral Sensitivity Test Filter (FSB-200S only, requires additional external power supply)
Sensitivity Filter (Incremental scale on reflector)
Local Alarm Test Switch
Local Alarm Reset Switch
Remote Test and Reset Switch Capability
(compatible with RTS451/RTS451KEY)
Indicators: Alarm: Remote Output, Local LED (red)
Trouble: Remote Output, Local LED (yellow)
Blink Pattern Indicates Trouble Diagnostics
Normal Operation: Local LED (flashing green with communication)
Alignment Aids: Optical Gunsight (coarse adjustment)
00 to 99 Digital Display (fine adjustment)
Sensitivity: Digital Display Readout in Percent Obscuration
Style 7 Operation: On-board isolators provide style 7 operation.
(may be disabled via shunts on circuit board)
12 Clintonville Rd.
Northford, CT 06472-1653
Phone: 203/484-7161
Environmental
Temperature: –22°F to 131°F (–30°C to 55°C)
Note: for applications below 32°F (0°C) see Special Applications section of this manual.
Humidity: 10% to 93% RH Noncondensing
Mechanical
Shipping Weight: 3.9 lbs. (1.77 kg)
Shipping Size: 15″ × 10.5″ × 6.5″ (381mm × 267mm × 165mm)
Mounting: Wall only without optional accessories
Wiring: Plug-in Terminal Blocks (12 to 22AWG)
Adjustment Angle: ±10° Horizontal and Vertical
Paintable Trim Ring: May be painted using enamel or acrylic type paints
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Specifications (continued)
Electrical
Voltage: 15 to 32 VDC
Standby Current: Avg. Standby: 2mA Max.
(1 communication every 5 sec., LED flashing, SLC @ 24 V)
Max. Alarm (LED on): 8.5mA Max.
Max. Trouble (LED on): 4.5mA Max.
Max. Alignment: 20mA Max.
External Supply
(FSB-200S only): Voltage: 15 to 32 VDC
Current: 0.5A Max.
Remote Output: Voltage: 15 to 32 VDC
(alarm) Note: Output voltage same as device input voltage.
Current: 15mA maximum
6mA minimum
Note: Output current is limited by 2.2Kohm resistor
General Description
Model FSB-200/FSB-200S is a long range projected beam
smoke detector designed to provide open area protection. It
is to be used with UL-listed compatible control panels only.
The detector consists of a transmitter/receiver unit and a
reflector. Smoke entering the area between the transmitter/
receiver and reflector causes a reduction in signal. When
the obscuration reaches alarm thresholds (chosen at the
transmitter/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 continuously monitors the signal
Special Applications
Due to the inherent capabilities of projected type beam
detectors they are often installed in locations where spottype detection is impractical. Projected type beam smoke
detectors are ideally suited for environmental conditions
that might include high ceilings, dusty and dirty environments, 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.
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.
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
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-
of these environments might be considered too hostile for
spot-type smoke detectors. If the environment is consid-
ered to be hostile then the colder alarm threshold settings
should be used.
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. It will also blink the amount of drift compensation that
has been used at the conclusion of the local test. Trouble
signals automatically reset upon removing the cause of
trouble. Red and yellow LEDs can be remotely connected
to the remote Alarm and Trouble outputs. These outputs
mimic the functions of the detector’s red and yellow LEDs.
In addition to these indicators, there is a dual digital display
that reads 00 to 99. This display is used to indicate 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.
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
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conditions will impair the proper operation of the detector
and must be avoided.
Approved Accessories
The following accessories can be purchased separately for
use with this beam detector.
BEAMLRK
The BEAMLRK allows System Sensor reflected beam detectors to be installed at separations between 230 and 328 feet
(70 to 100 meters). At these distances, four 8″×8″ reflectors
must be used to provide enough reflected infrared light.
This kit includes 3 additional reflectors with new test
scale legends. The reflector included with the transmitter/
receiver unit is the fourth reflector to be used. This kit is
not compatible with the multi-mount kit (BEAMMMK).
BEAMMMK
The BEAMMMK allows System Sensor reflected beam detectors and reflectors to be mounted to either a vertical wall or
the ceiling. The kit allows for additional alignment range in
cases where the detector and reflector cannot be mounted
within 10° of each other. The kit includes the hardware
necessary to mount either a single transmitter/receiver unit
or a single reflector. (To mount the transmitter/receiver the
surface mount kit, BEAMSMK, must also be used). If the
transmitter/receiver and the reflector require additional
alignment range two kits are required. The kit is not compatible with the long-range reflector kit (BEAMLRK).
BEAMSMK
The BEAMSMK allows System Sensor reflected beam detectors to be mounted when surface wiring is used. This kit
must be used when mounting the transmitter/receiver unit
with the multi-mount kit (BEAMMMK).
BEAMHK
The BEAMHK allows the transmitter/receiver unit to operate in environments prone to the formation of condensation. Condensation forming on the beam detector unit
may result in trouble or false alarm conditions. BEAMHK
will lessen the likelihood of condensation by maintaining
the unit at a temperature that is slightly higher than the
surrounding air. Please refer to the BEAMHK installation
manual for operation instructions.
BEAMHKR
The BEAMHKR allows the reflector to operate in environments prone to the formation of condensation. Condensation
forming on the reflector may result in trouble or false alarm
conditions. BEAMHKR will lessen the likelihood of condensation by maintaining the reflector at a temperature that is
slightly higher than surrounding air. The kit requires a 24V
power supply. When used with the long-range reflector kit
(BEAMLRK), it is necessary to purchase and install four
BEAMHKR kits. Please refer to the BEAMHKR installation
manual for operation instructions.
RTS451/KEY
The remote test accessory, RTS451/KEY allows for the
beam detector to be tested remotely. The test accessory
provides test and reset functions and green and red LED’s
that mimic the LED’s on the detector.
Parts List
Description Quantity
Transmitter/Receiver Unit . . . . . . . . . . . . . . . . . . . .1
Paintable Trim Ring . . . . . . . . . . . . . . . . . . . . . . . . .1
Reflector . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1
Plug-in Terminal Blocks . . . . . . . . . . . . . . . . . . . . . .3
Isolator Shunts . . . . . . . . . . . . . . . . . . . . . . . . . . . .2
Instruction Manual . . . . . . . . . . . . . . . . . . . . . . . . .1
Orange Sticky Paper . . . . . . . . . . . . . . . . . . . . . . . . .1
Parts Diagram (not to scale)
Terminal Block
Isolator Shunt
Paintable
Trim Ring
C0306-00
Detector Placement
This section of the manual discusses the placement of projected beam detectors. Though this information is based
upon industry expertise, it is intended to be used only as
a technical guide. Always comply with the requirements of
applicable codes and standards such as, NFPA 72, National
Fire Alarm Code, as well as directives of the Authority
Having Jurisdiction (AHJ).
Projected beam detectors are usually located with their
beams parallel to the ceiling. However, they can be mounted vertically or at any angle to protect the area involved.
Since beam detectors sense the smoke buildup over a distance, they are ideal for locations with high ceilings. They
can also be mounted on a wall or ceiling below the level
of a spot type detector, reducing the effects of air stratification. Some typical locations would include large areas with
high ceilings such as atriums, warehouses, and factories.
NOTE: Projected beam smoke detectors should always
be mounted to stable mounting surfaces. See the
MOUNTING LOCATION section for details.
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Some fire codes specify spacing on a given center-to-center
1/2 S S
12-18 in.
(0.3-0.46m)
WALL
16 ft. (5m) Minimum
328 ft. (100m) Maximum
Tx/Rx Reflector
S
Tx/Rx Reflector
1/2 S Maximum
1/4 S
Max.
S
3 ft. (0.
9m
)
Max.
S
1/2 S MAX.
Tx/Rx
Reflector
distance between detectors under ideal conditions. This
spacing is based on rooms with smooth ceilings and no
physical obstructions between the contents being protected
and the detectors. Moreover, they are also based on a maximum ceiling height, and on the assumption that the value
and the combustible nature of the contents of the room
being protected do not warrant greater protection or closer
spacing.
In a room with a smooth ceiling, detectors should be
spaced between 30 and 60 feet (9.1 to 18.3m). One-half
that spacing between the beam and the sidewall may be
used as a guide. See Figure 1. The beam detector can be
mounted with the transmitter/receiver on one wall and the
reflector on the opposite wall, or both suspended from the
ceiling, or any wall/ceiling combination. In the case of the
ceiling mount, the distance from the end walls should not
exceed one-quarter of the selected spacing (7.5 ft. [2.3m]
maximum if the spacing is 30 ft. [9.1m]). See Figure 2.
Figure 1. Spacing for smooth ceiling (side view):
Figure 2. Spacing for smooth ceiling (top view):
C0255-00
In the case of peaked or sloped ceilings, codes may specify
spacing of detectors by using horizontal spacing from the
peak of the roof or ceiling. Figures 3 and 4 show the spacing
for both the shed type and peaked type sloped ceilings.
On smooth ceilings, beam smoke detectors should gener-
ally be mounted between 12 and 18 inches (0.3 to 0.46m)
from the ceiling. In many cases, however, the location and
sensitivity of the detectors shall be the result of an engi-
neering evaluation that includes the following: structural
features, size and shape of the room and bays, occupancy
and uses of the area, ceiling height, ceiling shape, surface
and obstructions, ventilation, ambient environment, burn-
ing characteristics of the combustible materials present,
and the configuration of the contents in the area to be
protected.
Figure 3. Sloped ceiling (shed type):
C0254-00
C0256-00
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Figure 4. Sloped ceiling (peaked type):
1/2
S
S
S
1/2
S
3 ft. (0.9m)
Max.
3 ft. (0.9m
)
Max.
Mount Detector
Anywhere in This Area
Tx/Rx
Reflector
WA
L
L
REFLE
CTOR
Acceptable mounting
locations for reflector
10ϒ
10ϒ
C0257-00
Mounting Locations
Beam detectors require a stable mounting surface for
proper operation. A surface that moves, shifts, vibrates, or
warps over time will cause false alarm or trouble conditions. Initial selection of a proper mounting surface will
eliminate false alarms and nuisance trouble signals.
Mount the detector on a stable mounting surface, such as
brick, concrete, a sturdy load-bearing wall, support column, structural beam, or other surface that is not expected
to experience vibration or movement over time. DO NOT
MOUNT the beam detector on corrugated metal walls,
sheet metal walls, external building sheathing, external
siding, suspended ceilings, steel web trusses, rafters, nonstructural beam, joists, or other such surfaces.
the supplied drilling template (see Appendix II). The detector base has 4 primary mounting keyholes, one in each
corner of the base. All four hole locations should be used
to provide a secure mounting. The outer housing of the
beam detector is held to the base using four screws. In
order to mount the detector you must remove the outer
housing first.
The reflector can be mounted to the wall using the supplied drilling template (see Appendix III). The reflector
has 4 mounting holes, one in each corner. All four hole
locations should be used to provide a secure mounting.
The reflector must be mounted such that it is within 10°
in both the X and Y planes of the transmitter/receiver unit.
See Figure 5a. The reflector must also be mounted such
that plane of the reflector is perpendicular to the optical
line of sight to the transmitter/receiver unit. The maximum
tolerance for non-perpendicular mounting locations is 10°.
See Figure 5b. If the reflector cannot be mounted within
10° of the transmitter/receiver unit then the multi-mount
kit (BEAMMMK) may be used to provide greater angular
adjustment of the transmitter/receiver unit. If the perpendicular plane of the reflector cannot be mounted within 10°
of the optical line of sight then the multi-mount kit can be
used for the reflector. See BEAMMMK instructions.
To aid in locating the reflector in the alignment mirror
at long distances a bright orange sticky backed piece of
paper is provided. Remove the protective backing from
the orange sticker. Temporarily affix the orange paper next
to the reflector using the sticky backing of the paper. The
location of the sticky paper is not critical. It may be placed
anywhere near the reflector as long as it not covering the
reflective surface of the reflector. This sticky paper should
be removed once the installation is completed.
In cases where only one stable mounting surface as defined
above can be used, the transmitter/receiver unit should be
mounted to the stable surface and the reflector should
be mounted to the less stable surface. The reflector has
tions defined above.
a much greater tolerance for the unstable mounting loca-
Mounting Instructions
The transmitter/receiver unit may be mounted over a
recessed junction box. The cavity behind the detector is
then used for routing of the wiring from the junction box
to the terminal blocks on the detector. The transmitter/
receiver unit should be mounted to the wall such that unit
covers the recessed junction box in the wall completely.
If the junction box is not recessed then you may use the
surface mount kit (BEAMSMK). See the BEAMSMK installation instructions for surface mounting instructions. The
transmitter/receiver unit can be mounted to the wall using
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Figure 5a. Reflector Mounting Guidelines
C0258-00
Figure 5b. Reflector Mounting Guidelines
10ϒ maximum
optical line of sight
REFLECTOR
C0259-00
between the detector and the reflector, (A minimum of 10°
off perpendicular should be considered), and make certain
that the glass is smooth, clear and mounted securely. The
complete reflector blockage test can be used to determine if
the installation is acceptable. See Testing and Maintenance
Section of this manual.
Where high ceilings (in excess of 30 feet or 9.1 meters) are
present additional beams may be required to detect smoke
at lower levels.
Mounting Considerations for Single Ended Beam
Detectors
There must be a permanent clear line of vision between the
detector and the reflector. Reflective objects must not be
near the line of vision between the detector and reflector.
Reflective objects too near to the line of sight can reflect
the light beam from the transmitter to the receiver. If this
occurs, the detector will not be able to distinguish these
reflections from those of the reflector and the protected
space will be compromised. Reflective objects should be
Wiring Installation Guidelines
Always install all wiring in compliance with the National
Electrical Code, and/or the applicable local codes, and any
special requirements of the local authority having jurisdic-
tion. Proper wire gauges and suitable means for strain relief
should be used. The conductors used to connect beam
smoke detectors to control panels and accessory devices
should be color-coded to reduce the likelihood of wiring
errors. Improper connections can prevent a system from
responding properly in the event of a fire.
a minimum of 15 inches (38.1cm) from the line of sight
between the detector and reflector. In cases where reflective
objects cannot be avoided, the complete reflector blockage
test can be used to determine if the installation is acceptable. See Testing and Maintenance Section of this manual.
Installation wire used for the beam detector shall be no
smaller than 22 AWG (1.0 mm2). For best system perfor-
mance, all wiring should be twisted pair and installed in
separate grounded conduit. Do NOT mix fire system wiring
in the same conduit as any other electrical wiring. Shielded
Light sources of extreme intensity such as sunlight and halogen lamps, if directed at the receiver, can cause a dramatic
cable may be used to provide additional protection against
electrical interference.
signal change resulting in fault and alarm signals. To prevent
this problem direct sunlight into the transmitter/receiver
unit should be avoided. There should be a minimum of 10°
between the pathway of the light source and detector and
the line of sight between detector and reflector.
When installing the beam smoke detector in applications
where the head unit will be mounted to either a wall or
the ceiling using the multi-mount kit (BEAMMMK) flexible
conduit will be used. The surface mount kit (BEAMSMK)
and multi-mount kit (BEAMMMK) must be installed with
Operation of the detector through panes of glass should
be avoided. Since single ended beam detectors operate on
the cable before wiring the unit, according to the instruc-
tions supplied with the kit.
a reflection principle, a pane of glass perpendicular to the
line of sight between the detector and the reflector can
reflect the light beam from the transmitter to the receiver.
If this occurs, the detector will not be able to distinguish
these reflections from those of the reflector and the protected space will be compromised.
When the detector has been mounted over a recessed junc-
tion box, all wiring should be routed out of the box and
behind the detector to the bottom of the detector where
the terminal blocks are located. When installing the wir-
ing in the junction box be sure to leave enough wire in the
box to connect to the terminal blocks. (Approximately 9″
Panes of glass will also absorb some of the light as it
passes through it. This absorption of light will reduce the
acceptable installed distance between the detector and the
reflector.
(23cm) of wire outside of the junction box will be required
for proper installation). All wiring to the detector is done
via pluggable terminal blocks. In order to properly make
electrical connections strip approximately 1/4″ (6mm) of
insulation from the end of the wire, sliding the bare end of
In cases where operation through panes of glass cannot
be avoided some specific installation practices can help to
minimize the effects of the glass. These practices include:
avoid penetration of multiple panes of glass, position the
glass so that it is not perpendicular to the line of sight
the wire under the clamping plate screw.
Figure 6 shows all the wiring connections to the transmitter/
receiver unit. Figure 7 shows the proper wiring diagram for
either class A or class B operation. Figure 8 shows the con-
nections that are necessary when using one of the optional
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