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
N200-25-00 1 I56-2424-04R
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
N200-25-00 2 I56-2424-04R
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
N200-25-00 5 I56-2424-04R
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
N200-25-00 6 I56-2424-04R
remote test stations (RTS451 or RTS451KEY). Figure 9
SLC (–)
SLC (+)
SLC (–)
SLC (+)
RESET I NPUT
TEST INPUT
AUX (–)
REMOTE ALARM OUT
Not used
REMOTE TROUBLE OUT
TEST OPTION (–)
TEST OPTION (+)
T3 T2 T1
+ –
+ –
+
+
TO NEXT
DEVICE
FROM PANEL OR
PREVIOUS DEVICE
LISTED
REMOTE
POWER
SOURCE
* Only used for
FSB-200S. See
electrical ratings.
COMMUNICATION LINE
32 VDC MAX.
TWISTED PAIR IS
RECOMMENDED.
–
–
–
+
T3 T2 T1
RTS451/KEY
FSB-200/FSB-200S
Pin 1
Remote Alarm Out
T2-1
T2-2
T2-4
T2-3
AUX (–)
Power In +T1-1
T1-2
T1-3
T1-4Power In –
Power Out +
Power Out –
Reset Input
Test Input
T3-3
Remote Trouble Output
Optional Yellow LED
Pin 2
Pin 4
Pin 3
Pin 5
FSB-200S
Alarm
Signal
Circuit
(Note 1)
T2-1
T2-2
Note 1: See electrical ratings section of this
manual for circuit output ratings.
SLC (+)
SLC (–)
Red
shows the remote output for alarm indication.
WARNING: Disable the zone or system before applying
power to the beam detector to prevent unwanted alarms. When applying power to the beam
detector before the alignment procedure has
been completed the detector may enter alarm
or fault.
Figure 6. Wiring Connections at Detector
Figure 7. Wiring Diagram
C0335-00
Figure 8. Wiring Diagram (RTS451)
C0260-01
C0336-01
Figure 9. Wiring Diagram (RTS451)
N200-25-00 7 I56-2424-04R
C0326-00
Installation / Alignment
Reference Figures 10 through 14 for installation, alignment,
brightly colored object on the wall near the reflector to
aide in seeing the reflector in the alignment mirror.
and maintenance.
3. Once the reflector has been located, begin to adjust both
The alignment of the FSB-200/FSB-200S is divided into four
steps: coarse alignment, fine adjustment, final gain adjustment, and final verification. It is necessary for all four
steps to be executed properly to ensure proper alignment
of the product. If the detector and reflector are mounted per
the horizontal and vertical alignment knobs so that the
reflector becomes centered in the alignment mirror. Take
care in this step. If the optics are incorrectly aligned in
this step, it will not be possible to proceed with the fine
adjustment step.
Mounting Locations and Mounting Instructions sections of
this manual and the alignment procedures are executed
properly, false alarms and nuisance trouble signals will be
Step 2. Fine Adjustment
Refer to Figures 10 through 12 for this step.
minimized.
In this step you will be fine-tuning the optics to the reflec-
Pre-Alignment Checklist
• Insure that both the detector and reflector are mounted
securely to stable surfaces.
• Insure that all wiring is correct.
• Insure that terminal blocks are fully seated into their
receptacles on the detector.
• Complete any wiring dressing to minimize movement
to the detector once the alignment procedure is completed.
• Insure that the appropriate number of reflectors are
used for the installed distance. Distances between 230
& 328 Feet (70 - 100m) require additional reflectors (4
total). The BEAMLRK accessory should be used in these
cases.
tor. To provide feedback of the signal level coming from the
reflector the dual digital display readout will be used. Due
to the large distance range that the detector can operate
over it is necessary that the detector operate with many different settings of “electronic amplifier gain”. The detector
is capable of determining the appropriate gain setting and
then setting it itself via on-board processing algorithms.
There are no external gain settings on the detector that
must be set by the operator. Periodically throughout the
fine adjustment step the detector will need to re-adjust its
“electronic amplifier gain” setting. When this occurs it will
be indicated by the dual digital readout as “- -”. When this
occurs, cease any further adjustment until the display again
reads a number value.
• Insure that the line of sight between the detector and
reflector is clear and that reflective objects are not too
near. See Mounting Instructions for more details.
1. Insure that neither you nor any other objects are in the
line of sight between the detector and the reflector.
• Insure that both the detector and reflector are mounted
within their operational parameters for off axis angles.
See Mounting Instructions for more details.
• Disable the zone or system to prevent unwanted alarms
before applying power.
• Insure power to the detector is “ON”.
• Insure that the appropriate address is set on the code
wheels.
2. Depress the Alignment switch once. Both the digital display and the yellow LED should turn on indicating that
alignment mode has been entered. The display should
begin reading “- -” signifying an electronic gain adjustment. After a few moments the display will indicate a
numeric value near 20. If the display reads “Lo” then
the detector is not receiving enough light from the reflector. Go back and repeat the course alignment step and
You are now ready to begin the alignment procedure.
verify that the proper number of reflectors is used for the
installed distance.
Step 1. Coarse Alignment
Refer to Figures 11 and 12 for this step.
NOTE: The display will continue to read “Lo” until the
detector receives enough light from the reflector to
1. Insure that both of the optics lock-down screws are loos-
continue with the fine adjustment step.
ened so that the optics will move freely.
NOTE: In alignment mode (indicated by the yellow LED
2. Looking through the alignment mirror at both the alignment sight and reflector simultaneously locate the posi-
and the numeric display) the sensitivity select and
test switches are disabled.
tion of the reflector in the optical sight. This step will
require some practice. It is necessary to train your eyes
to shift focus between the reflector and the mirror in
order to locate the reflector. If the distance between the
reflector and the detector is large it is helpful to place a
N200-25-00 8 I56-2424-04R
3. With the display reading a numeric value, begin adjusting the horizontal and vertical alignment knobs one at
a time in the direction that increases the numeric signal
level on the display. Continue adjusting each axis one
at a time going back and forth between them until a
peak value is indicated. If a value of 90 is achieved, the
detector will re-adjust the electronic gain once again.
This will be indicated by a “- -” reading on the display.
When this happens halt any further adjustment until the
display again reads a numeric value. This process may
occur more than once during the fine adjustment step.
NOTE: Each time the display reads a value of 90 or greater
the detector will reduce the electronic gain. Each
time the display reads a value of 10 or less the
detector will increase the electronic gain.
4. Once satisfied that it is not possible to achieve a higher
reading on the display depress the alignment switch to
complete the fine adjustment step. The digital display
readout will turn “OFF” and the yellow LED will remain
“ON”.
NOTE: It may not be possible to achieve a value near 90
on the display during the last adjustment iteration.
The final value of the display will not likely be
near 90. This is normal. It is due to the detector
reducing its electronic gain each time a value of 90
is achieved. When this occurs the detector resumes
with less electronic gain than previously when 90
was achieved. Less gain makes it more difficult
to achieve higher values. Final values anywhere
between 20 and 90 are acceptable if no further
increase can be achieved.
NOTE: The housing contains a gasket seal that protects
the detector circuitry from corrosion and moisture
sources. To insure that the gasket seal performs
correctly it is necessary to fully tighten all four of
the screws that hold the outer housing in place.
3. Remove the protective film from the front surface of the
outer housing.
4. To initiate the final electronic gain adjustment, the reset
switch must be depressed. Once depressed the yellow
LED will begin to blink. This indicates that the detector
is adjusting the electronic gain setting. Once complete,
the yellow LED will stop blinking and the green LED will
begin blinking. This indicates that the gain adjustment
was successful.
NOTE: Use caution not to block the line of sight between
the detector and reflector in this step.
5. Install the outer aesthetic ring by snapping it onto the
outer housing.
NOTE: If the outer aesthetic ring has been painted insure
that the paint is completely dry before proceeding
with this step.
Step 4. Final Verification
This step is required to insure the detector has been setup correctly and will detect smoke at the proper sensitivity level.
NOTE: The alignment procedure is not complete yet.
At this time it is possible to set the sensitivity of the detector using the sensitivity switch and digital display. See the
Sensitivity Selection section of this manual for further details.
Step 3. Final Gain Adjustment
Refer to Figure 13 for this step.
In this step, the detector will electronically adjust its internal gain one final time. It is necessary to complete this
step with the outer housing installed since the housing will
change the amount of light received from the reflector.
1. Tighten the optics lock down screws so the optics are
secure.
2. Install the outer housing of the detector. The housing is
installed by tightening four screws, one in each corner
of the housing. The screws are captivated in the plastic
of the housing and cannot fall out during assembly.
1. With the detector functioning (indicated by the green
LED blinking), completely block the reflector with an
opaque material. (Due to the high optical efficiency of
the reflector the selection of the opaque material used
to block the reflector is not critical. Acceptable materials include, but aren’t limited to, this manual or the
cardboard packaging inserts.) See Figure 14. The detector should enter the fault condition (indicated by the
fault relay and the yellow LED (see Appendix I). If the
detector does not enter the trouble condition there is a
problem with the installation refer to the troubleshooting section in Appendix I for further assistance.
2. Complete a sensitivity test of the detector. Refer to the
Sensitivity Testing section of this manual for the appropriate procedure.
3. If the orange sticky paper was used to aid in the loca-
tion of the reflector in the alignment mirror it should be
removed now. It is no longer necessary.
Congratulations. You have completed the final installation
and alignment procedure.
N200-25-00 9 I56-2424-04R
Figure 10. Switch Locations
ALIGNMENT
SENSITIVITY
TEST
RESET
STYLE 7 ISOLATOR SHUNTS
(SHOWN DISABLED)
CODE SWITCH
TENS
ONES
ALIGNMENT MIRROR
ALIGNMENT GUNSIGHT
DIGITAL SIGNAL
STRENGTH
READOUT
HORIZONTAL
ADJUSTMENT
VERTICAL
ADJUSTMENT
OPTICS
LOCK-DOWN
SCREWS
ALIGNMENT
POSITION
INDICATOR
EYE
REFLECTOR
SCREW
LOCATIONS
SCREW
LOCATIONS
RESET
SWITCH
Figure 11. Alignment Adjustment Locations
Figure 12. Coarse Alignment Procedure
C0265-00
Figure 13. Housing Screw Locations
C0263-00
N200-25-00 10 I56-2424-04R
C0264-00
C0266-00
Short Circuit Isolation
The detector includes an on-board circuit isolator that
allows for NFPA72 style 7 operation. In cases where style 7
operation is not desired the isolator can be disabled using
the two shunts on the circuit board. See Figure 10 for jumper locations. When the jumpers are present the isolator is
disabled. This is the default state.
Sensitivity Selection
The detector has six sensitivity selections. Each of these
selections is only acceptable over a specific distance separation between the detector and the reflector per UL268.
The chart below is used to determine which selections are
acceptable for your installed distance. The sensitivity of
2.0
1.5
1.0
0.5
0.0
0
25% Setting
30% Setting
40% Setting
50% Setting
50 100 150 200 250 300 350
Sensitivity in %/Ft. vs. Distance
(assumes uniform smoke distribution)
Distance in Feet
Obscuration (%/Ft.)
the detector can be set only when the housing is removed
and the detector is not in the fine adjustment step of the
alignment mode, indicated by the illumination of the dual
digital display. To set the sensitivity depress the sensitivity
button one time. See Figure 10. Once the switch is pressed
the digital display will illuminate and read the current
sensitivity setting in percent obscuration. To change the
sensitivity continue to depress the sensitivity switch until
the desired setting is achieved. The digital display will turn
off automatically if no further switch presses occur.
Sensitivity
Setting% Obscuration
Level 1 25 25 16.4 to 120 5.0 to 36.6
Level 2 30 30 25 to 150 7.6 to 45.7
Level 3 40 40 60 to 220 18.3 to 67
Level 4 50 50 80 to 328 24.4 to 100
Acclimate
Level 1
Acclimate
Level 2
30 to 50 A1 80 to 150 24.4 to 45.7
40 to 50 A2 80 to 220 24.4 to 67
Display
Reading
Acceptable
Distance
Between
Detector
and
Reflector
(Feet)
Acceptable
Distance
Between
Detector
and
Reflector
(meters)
Sensitivity Testing
NOTE: Before testing, notify the proper authorities that the
smoke detector system is undergoing maintenance,
and therefore the system will be temporarily out
of service. Disable the zone or system undergoing
maintenance to prevent unwanted alarms.
Detectors must be tested after installation and following
periodic maintenance. The sensitivity of the FSB-200/FSB200S may be tested as follows:
NOTE: Before testing the detector, check for the presence
of the flashing green LED at the receiver, making
sure not to disturb or block the beam. If it does not
flash and the detector is not in trouble or alarm,
power has been lost to the detector (check the wiring).
A. Calibrated Test Filter
The sensitivity of the detector can be tested using an
opaque material to cover the reflector by an amount indicated by the graduated scale on the reflector. (Due to the
high optical efficiency of the reflector the selection of the
opaque material used to block the reflector is not critical.
Acceptable materials include, but aren’t limited to, this
manual or the cardboard packaging inserts.)
In addition to the four standard sensitivity selections the
detector has two Acclimate settings. When either of these
settings is chosen the detector will automatically adjust its
sensitivity using advanced software algorithms to select the
optimum sensitivity for the environment. The sensitivity
will be continuously adjusted within the ranges specified
in the chart above.
Sensitivity
Total obscuration can be converted to percent per foot,
assuming uniform smoke density for the entire length of
the beam. The charts below converts total obscuration to
percent per foot for all acceptable sensitivity settings.
N200-25-00 11 I56-2424-04R
Refer to Figure 14 for this procedure.
1. Verify the sensitivity setting of the detector in % obscuration. See the Sensitivity Selection section of this manual
for sensitivity determination if sensitivity is unknown.
2. Place the blocking material over the reflector, lining it
up with the graduated marks that are 10 less than the
detector’s setting in % obscuration. The detector should
not alarm or fault. Keep the material in place for a minimum of 1 minute.
3. Place the blocking material over the reflector lining it
up with the graduated marks that are 10 more than the
detectors setting in % obscuration. The detector should
enter alarm within 1 minute.
C0268-00
Figure 14. Reflector Test Card Procedure
LINE UP EDGE OF
TEST CARD WITH
APPROPRIATE
OBSCURATION LEVEL
MOVE TEST CARD
TO DESIRED AMOUNT
OF OBSCURATION
B. Test Switch
The detector can be tested using the local test switch on
the transmitter/receiver unit or remotely using the remote
test station.
The remote test station, RTS451 or RTS451KEY, can be used
with the FSB-200/FSB-200S beam smoke detector. Follow
instructions included with the test station for proper use.
See Figure 8 (Remote Test Station) for wiring diagram.
The FSB-200S is equipped with an integral sensitivity test
feature that consists of a calibrated test filter attached to
a servo motor inside the detector optics. When a test is
initiated using the remote test station or local test switch
the test filter is moved in the pathway of the light beam.
The on-board microprocessor then determines if the proper
level of signal reduction is received at the receiver. If the
proper level of signal reduction is received the detector will
enter alarm. If the proper level of signal reduction was not
achieved, indicating that the sensitivity of the detector is
out of tolerance, the detector will enter the trouble condition.
C0267-00
4. The detector can be reset with the reset switch on the
detector unit or remote reset.
5. Notify the proper authorities that the system is back on
line.
If the detector fails this test several steps should be taken
to determine if the detector is faulty or simply needs to be
re-adjusted before returning the unit. These steps include:
1. Verify all wiring connections and appropriate power is
applied to the detector.
2. Verify that the optical line of sight is free from obstructions and reflective objects.
3. Apply the maintenance procedure in this manual.
Repeat the test procedure. If the detector still fails the
test procedure proceed with step 4.
4. Repeat the alignment procedure in this manual. If the
alignment procedure is successful repeat the test procedure. If the detector still fails the test it should be
returned.
Always perform a complete reflector blockage test as in step
4 of the Installation/Alignment procedure to insure that the
pathway between the detector and reflector is clear.
NOTE: For the FSB-200 this test does not satisfy the
requirements of NFPA72 for periodic maintenance
and sensitivity verification of beam type detectors.
For the FSB-200S this test in conjunction with the
complete reflector blockage test (see step 4 of the
Installation/Alignment procedure in this manual)
does satisfy the requirements of NFPA72 for periodic maintenance and sensitivity verification of
beam type detectors.
If the detector fails this test several steps should be taken
to determine if the detector is faulty or simply needs to be
re-adjusted before returning the unit. These steps include:
1. Verify all wiring connections and appropriate power is
applied to the detector.
2. Verify that the optical line of sight is free from obstructions and reflective objects.
3. Apply the maintenance procedure in this manual.
Repeat the test procedure. If the detector still fails the
test procedure proceed with step 4.
NOTE: For the FSB-200S the external power supply must
be connected for the test switch to work.
N200-25-00 12 I56-2424-04R
4. Repeat the alignment procedure in this manual. If the
alignment procedure is successful repeat the test pro-
cedure. If the detector still fails the test it should be
returned for repair.
NOTE: For the FSB-200S, the external power supply must
be connected for the test switch to work.
Maintenance
NOTE: Before cleaning the detector, notify the proper
authorities that the smoke detector system is undergoing
maintenance, and therefore the system will be temporarily out of service. Disable the zone or system undergoing
maintenance to prevent unwanted alarms.
1. Carefully clean the outer housing lens face. A damp soft
cloth with a mild soap may be used. Avoid products with
solvents or ammonia.
2. Carefully clean the reflector. A damp soft cloth with a
mild soap may be used. Avoid products with solvents or
ammonia.
3. Notify the proper authorities that the system is back on
line.
Painting
The outer aesthetic ring may be painted using a spray or
brush type paint of appropriate type. See specification section of this manual for paint types.
NOTE: Never paint the flat lens surface of the outer
housing.
Special Note Regarding Smoke Detector Guards
Smoke detectors are not to be used with detector guards
unless the combination has been evaluated and found suitable for that purpose.
N200-25-00 13 I56-2424-04R
Appendix I. Operation Modes and Troubleshooting Guide
• Sunlight into detector or reflector.
• Re-Align detector.
initialization or detector reset
Alignment Switch
Test Stations
Out of Range
• Clean detector and reflector.
Out of Range
reflector for reflective objects in the pathway.
• Faulty unit.
• Faulty unit.
discharged state.
Remains in fault until reset or time-out
after alignment
Blinks output by Yellow
LED and Remote Trouble
Output once the device
has passed a local
remote test:
Percent the
detector has
drifted
Remains in fault until reset or time-out
<100% 9
input
input
Number
of blinks
output
<10% None
<20% 1
<30% 2
<40% 3
<50% 4
<60% 5
<70% 6
<80% 7
<90% 8
Dual Digital Display Initiating means Comments & Troubleshooting Tips
Output
Remote Alarm
*Green
See Note Below
Trouble Output
Yellow and Remote
Below
See Note
0-99, or – if automatic gain
resetting, or Lo if signal is
too low
Off 3 Quick Blinks Blink Blink Off Long Term Drift Reference
Off 2 Quick Blinks Blink Blink Off Long Term Drift Reference
Off On Off Panel or RTS451/KEY Remains in alarm until reset or time-out
drift used
Off 2 Quick Blinks Blink Blink Off Increase of Reflected Signal • Inspect line of sight between detector and
Off 4 Quick Blinks Blink Blink Off Beam Blockage • Remove blockage.
On 4 Quick Blinks Blink On Off Beam Blockage • Remove blockage.
Off Blink until complete Blink Blink Off Apply Power from
Off Blink until complete Blink Blink Off Depressing RESET switch
On Blinks out amount of
Blink Blink Off Panel or RTS451/KEY test
Blink Blink Off Panel or RTS451/KEY test
time-out
time-out
Off On until reset or
Off On until reset or
Off On Off Panel or RTS451/KEY Remains in alarm until reset or time-out
drift used
On Blinks out amount of
Modes *Red
Normal Off Off Blink Blink Off Successful completion of
Alignment Off On Blink Blink On, Relative amount of signal
Alarm On Off Off On Off Smoke, Test Filter, RTS451
Trouble-Drift Comp
Elevated Signal
Trouble-Drift Comp
Reduced Signal
N200-25-00 14 I56-2424-04R
Trouble-Signal
Over Range
Trouble-Beam
Blockage Initial
Response
Trouble-Beam
Blockage Long
Term Response
Initialization-
Power on
Initialization-
alignment exit
Local Test
(FSB-200S)
Pass Result
Local Test
(FSB-200S)
Fail Result
Local Test
(FSB-200)
Fail
Local Test
(FSB-200)
Pass Result
Note: Green and Red LEDs are controlled by the control panel.
Appendix II. Detector Drilling Template
4.345″
6.190″
Scale = 1:1
N200-25-00 15 I56-2424-04R
N200-25-00 16 I56-2424-04R
5.512″
(140mm)
8.465″
(215mm)
Appendix III. Reflector Drilling Template
Scale = 1:1
N200-25-00 17 I56-2424-04R
Please refer to insert for the Limitations of Fire Alarm Systems
This projected beam smoke detector has been tested and found to comply
with the limits for a Class B digital device, pursuant to part 15 of the FCC
Rules. These limits are designed to provide reasonable protection against
harmful interference when the equipment is operated in a commercial
environment. This equipment generates, uses, and can radiate radio
N200-25-00 18 I56-2424-04R
FCC Statement
frequency energy and, if not installed and used in accordance with the
instruction manual, may cause harmful interference to radio communications. Operation of this equipment in a residential area is likely to cause
harmful interference in which case the user will be required to correct the
interference at his own expense.
©2004 System Sensor
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