FIre-LITe ALarms BEAM355 Single Ended Reflected Type Projected Beam Smoke Detector Instruction Manual

FIre-LITe ALarms BEAM355 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 (BEAM355S 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

• 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)

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 Non-condensing

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

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 (BEAM355S only): VOLTAGE – 15 to 32 VDC
  • CURRENT – 0.5A Max.
• Remote Output (alarm) VOLTAGE – 15 to 32 VDC; NOTE: Output voltage same as device input voltage.
  • CURRENT – 15mA maximum; 6mA minimum; NOTE: Output current is limited by 2.2Kohm resistor

General Description
Fire•Lite Model BEAM355/BEAM355S is a long range projected beam smoke detector designed to provide open area protection. It is to be used with ULlisted 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 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 button 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 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.

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 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 loca-tions and large coverage area of projected type beam detectors often the condi-tions above can be addressed or minimized.

Some examples of applications for beam detectors might include freezers, air- craft hangars, cold storage warehouses, shipping warehouses, enclosed park-ing facilities, sporting arenas and stadiums, concert halls, barns, or stables. Some of these environments might be considered too hostile for spot-type
smoke detectors. If the environment is considered 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 ensure proper operation of the beam detector. The beam detector should not be installed in environ- ments 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 application 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 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 Fire•Lite reflected beam detectors to be installed at separations between 230 and 328 feet (70 to 100 meters). At these distances, four 8 inch×8 inch reflectors must be used to provide enough reflected infra- red 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 Fire•Lite 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 Fire•Lite 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).

6500-MMK
The 6500-MMK provides a heavy-duty multi-mount bracket for installations prone to building movement or vibration. It offers similar tilt and swivel flex- ibility found on the BEAMMMK. (To mount the transmitter/receiver to the 6500-MMK, the surface mount kit, 6500-SMK, must be used).

6500-SMK
The 6500-SMK allows the transmitter/receiver to be mounted to the 6500-MMK heavy duty multi-mount kit.

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 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)

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.

Some fire codes specify spacing on a given center-to-center 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 horizontally 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.

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 generally be mounted a minimum of 12 inches (0.3m) from the ceiling or beneath structural obstructions such as joists, ducts, etc. See Figure 1. In many cases, however, the location and sensitivity of the detectors shall be the result of an engineering evaluation that includes the following: ceiling heights above 30 feet (9.1 m) -refer to the “Single-Ended Reflected Beam Smoke Detector” application guide A05-0095 for more information regarding the effects of stratification, 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, burning characteristics of the combustible materials present,and the configuration of the contents in the area to be protected.

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.
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 a much greater tolerance for the unstable mounting locations defined above.

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 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 nonperpendicular 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) or the heavy-duty multi-mount kit (6500-MMK) 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 or 6500-MMK 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.

Mounting Considerat ions 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 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.

Light sources of extreme intensity such as sunlight and halogen lamps, if directed at the receiver, can cause a dramatic 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.
Operation of the detector through panes of glass should be avoided. Since single ended beam detectors operate on 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.
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.

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 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 beam smoke detectors mounted at multiple heights may be required to detect smoke at lower levels. See the Detector Placement section in this installation manual.

Wiring Installat ion 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 jurisdiction. 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.

Installation wire used for the beam detector shall be no smaller than 22 AWG (1.0 mm2). For best system performance, 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 cable may be used to provide additional protection against electrical interference.
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 kits (BEAMMMK or 6500-MMK) flexible conduit will be used. The surface mount kits (BEAMSMK or 6500-SMK) and multi-mount kits (BEAMMMK or 6500-MMK) must be installed with the cable before wiring the unit, according to the instructions supplied with the kit.

When the detector has been mounted over a recessed junction 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 wiring in the junction box be sure to leave enough wire in the box to connect to the terminal blocks. (Approximately 9 inch (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 inch (6mm) of insulation from the end of the wire, sliding the bare end of 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 connections that are necessary when using one of the optional remote test stations. Figure 9 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.

Note 1: See electrical ratings section of this manual for circuit output ratings.

Installation/Alignment

Reference Figures 10 through 14 for installation, alignment, and maintenance.
The alignment of the BEAM355/BEAM355S 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 Mounting Locations and Mounting Instructions sections of this manual and the alignment procedures are executed properly, false alarms and nuisance trouble signals will be minimized.

Pre-Alignment Checklist

• Ensure that both the detector and reflector are mounted securely to stable surfaces.
• Ensure that all wiring is correct.
• Ensure 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.
• Ensure that the appropriate number of reflectors are used for the installed distance. Distances between 230 and 328 Feet (70 – 100m) require additional reflectors (4 total). The BEAMLRK accessory should be used in these cases.
• Ensure 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.
• Ensure 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.
• Ensure power to the detector is “ON”.
• Ensure that the appropriate address is set on the code wheels.

You are now ready to begin the alignment procedure.

1. Coarse Alignment
   Refer to Figures 11 and 12 for this step.

2. Ensure that both of the optics lock-down screws are loosened so that the optics will move freely.

3. Looking through the alignment mirror at both the alignment sight and reflector simultaneously locate the position 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 brightly colored object on the wall near the  reflector to aide in seeing the reflector in the alignment mirror.

4. Once the reflector has been located, begin to adjust both 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.

5. Fine Adjustment
   Refer to Figures 10 through 12 for this step.
   In this step you will be fine-tuning the optics to the reflector. 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.

6. Ensure that neither you nor any other objects are in the line of sight between the detector and the reflector.

7. 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

8. 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 verify that the proper number of reflectors is used for the installed distance.
   NOTE: The display will continue to read “Lo” until the detector receives enough light from the reflector to continue with the fine adjustment step.
   NOTE: In alignment mode (indicated by the yellow LED and the numeric display) the sensitivity select and test switches are disabled.
   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.
   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 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.

9. 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.

10. Tighten the optics lock down screws so the optics are secure.

11. 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.
    NOTE: The housing contains a gasket seal that protects the detector circuitry from corrosion and moisture sources. To ensure that the gasket seal performs correctly it is necessary to fully tighten all four of the screws that hold the outer housing in place.

12. Remove the protective film from the front surface of the outer housing.

13. 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.

14. install the outer aesthetic ring by snapping it onto the outer housing.
    NOTE: If the outer aesthetic ring has been painted ensure that the paint is completely dry before proceeding with this step.

15. Final Verificat ion
    This step is required to ensure the detector has been setup correctly and will detect smoke at the proper sensitivity level.

16. 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.

17. Complete a sensitivity test of the detector. Refer to the Sensitivity Testing section of this manual for the appropriate procedure.

18. If the orange sticky paper was used to aid in the location 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.

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 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

| Display Reading| Acceptable Distance Between Detector and Reflector (Feet)| Acceptable Distance Between Detector and Reflector (meters)
---|---|---|---|---
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| 30 to 50| A1| 80 to 150| 24.4 to 45.7
Acclimate Level 2| 40 to 50| A2| 80 to 220| 24.4 to 67

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.

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 BEAM355/BEAM355S 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.)

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.

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.
   NOTE: For the BEAM355S the external power supply must be connected for the test switch to work.

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 can be used with the BEAM355/BEAM355S beam smoke detector. Follow instructions included with the test station for proper use. See Figure 8 (Remote Test Station) for wiring diagram.

The BEAM355S 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.
Always perform a complete reflector blockage test as in step 4 of the Installation/Alignment procedure to ensure that the pathway between the detector and reflector is clear.

NOTE: For the BEAM355 this test does not satisfy the requirements of NFPA72 for periodic maintenance and sensitivity verification of beam type detectors. For the BEAM355S 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.

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 for repair.
   NOTE: For the BEAM355S, 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.

Operat ion Modes and Troubleshooting Guide

Modes| *Red See Note Below| Yellow and Remote Trouble Output*| Green See Note Below| Remote Alarm Output| Dual Digital Display| Initiating means| Comments & Troubleshooting Tips**
---|---|---|---|---|---|---|---
Normal| Off| Off| Blink| Blink| Off| Successful completion of initialization or detector reset|
Alignment| Off| On| Blink| Blink| On, Relative amount of signal 0-99, or – if

automatic gain resetting, or Lo if signal is too low

| Alignment Switch|
Alarm| On| Off| Off| On| Off| Smoke, Test Filter, RTS451 Test Stations|
Trouble-Drift Comp Elevated Signal| Off| 3 Quick Blinks| Blink| Blink| Off| Long Term Drift Reference Out of Range| • Sunlight into detector or reflector.

•  Re-Align detector.

Trouble- Drift Comp Reduced Signal| Off| 2 Quick Blinks| Blink| Blink| Off| Long Term Drift Reference Out of Range| • Clean detector and reflector.
Trouble-Signal Over Range| Off| 2 Quick Blinks| Blink| Blink| Off| Increase of Reflected Signal| • Inspect line of sight between detector and reflector for reflective objects in the pathway.
Trouble-Beam Blockage Response| Off| 4 Quick Blinks| Blink| Blink| Off| Beam Blockage| • Remove blockage.

• Faulty unit.

Initialization- Power on| Off| Blink until complete| Blink| Blink| Off| Apply Power from discharged state.|
Initialization- alignment exit| Off| Blink until complete| Blink| Blink| Off| Depressing RESET switch after alignment|
Local Test (BEAM355S)

Pass Result

| On| Blinking the amount of drift used| Off| On| Off| Panel or RTS451/ KEY| Remains in alarm until reset or time-out
Local Test (BEAM355S)

Fail Result

| Off| On until reset or time-out| Blink| Blink| Off| Panel or RTS451/ KEY test input| Remains in fault until reset or time-out
Local Test (BEAM355)

Fail

| Off| On until reset or time-out| Blink| Blink| Off| Panel or RTS451/ KEY test input| Remains in fault until reset or time-out
Local Test (BEAM355)

Pass Result

| On| Blinking the amount of drift used| Off| On| Off| Panel or RTS451/ KEY| Remains in alarm until reset or time-out

Note: Green and Red LEDs are controlled by the control panel.

Blinks output by Yellow LED and Remote Trouble Output once the device has passed a local remote test:

Detector Drilling Template

Reflector Drilling Template

Please refer to insert for the Limitations of Fire Alarm Systems

FCC Statement

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 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.

One FireLite Place
Northford, CT 06472
Phone: 203.484.7161

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References

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