Honeywell Beam Smoke Detector Guide

Remote alarm output 15-32 VDC, 6-15 mA (built-in 2.2k Ω current limit)

2.5 Mechanical dimensions

Detector: 10.0 "H x 7.5" W x 3.3 "D (254 x 191 x 84 mm)

Standard reflector: 7.9 "x 9.1" (200 x 230 mm)

Long distance reflector: 15.7 "× 18.1" (400 × 460 mm)

Shipping weight: 3.7 lbs (1.68 kg)

2.6 Indicator light status

Normal: Green LED flashing

Alarm: The red LED is constantly on, and the remote alarm output is activated

Fault: The yellow LED is constantly on (fault conditions include: shading rate ≥ 96%, alignment mode, improper initial alignment, self compensation limit reached)

Installation and Alignment: A Step by Step Guide

3.1 Preparation before installation

Choose installation location: Ensure that there are no permanent obstacles in the optical path. Personnel, equipment, or decorations must not frequently pass through the straight path between the detector and the reflector.

Spacing requirements: According to NFPA 72, the horizontal spacing between adjacent beam detectors should not exceed 60 feet (18.3 m), and the distance between the beam and the sidewall should not exceed half of this spacing.

Mirror installation: The mirror should be installed on a flat and sturdy surface, ensuring verticality. For long distances (>230 ft), large-sized reflectors from the BEAMLRK kit are required.

3.2 Detector Installation

The detector can be installed on the ceiling or wall. For special installation requirements:

BEAMMMK Multi Installation Kit: Provides ceiling or wall installation capability and increases angle adjustment range.

Surface mounting kit BEAMSMK: used for direct surface mounting.

Heavy duty multi installation kit 6500-MMK: suitable for places with high vibration (needs to be used in conjunction with 6500-SMK).

3.3 Optical alignment steps

Connect the SLC power supply and external test motor power supply (if used).

Place the detector in alignment mode (usually through dialing or controller commands).

Roughly align the center of the reflector through an optical sight.

Observe the two digit display (signal strength reading). The larger the value, the stronger the received signal.

Fine tune the horizontal/vertical angle of the detector to achieve the maximum reading (usually ≥ 90).

Fix the adjustment screw and exit the alignment mode.

Attention: In alignment mode, the detector will not sound an alarm and the fault LED may light up, which is a normal phenomenon.

3.4 Wiring precautions

The detector uses a pluggable terminal block, which needs to be unplugged from the circuit board before wiring. After the wiring is completed, reinsert it.

SLC circuit: The polarity of the wiring terminals (usually marked as+and -) is independent.

External power supply: To supply power to the servo motor, a 15-32 VDC power supply is required (pay attention to the positive and negative poles).

Remote alarm output: can be connected to remote indicator lights or relays, with output current limited to 6-15 mA.

Remote testing station: RTS151 or RTS151KEY can be remotely activated and reset by connecting with two or three wires.

Matching sensitivity settings with distance limitations

The sensitivity setting must be performed when the detector is not in the fine alignment step (i.e. when the two digit display is not lit). Operation steps:

Open the detector casing.

Find the sensitivity button (see the "Switch Locations" image in the document).

Short press the sensitivity button once, and the two digit display will light up and show the current setting (for example, "25" means 25% shading).

Continue holding down the button, and the settings will loop until the desired values (25, 30, 40, 50, A1, A2) are displayed.

Release the button and it will automatically turn off after a few seconds.

Key rule: Not all sensitivity settings are applicable to any installation distance. You must refer to the table in the document to select:

25% blackout: only suitable for 16.4-120 ft (5-36.6 m)

30% blackout: only suitable for 25-150 ft (7.6-45.7 m)

40% blackout: only suitable for 60-220 ft (18.3-67 m)

50% blackout: only suitable for 80-328 ft (24.4-100 m)

Acclimate ®  1 (A1): Only applicable for 80-150 ft (24.4-45.7 m)

Acclimate ®  2 (A2): Only applicable for 80-200 ft (24.4-67 m)

Violation of regulations can result in false positives or false negatives. For example, using 25% sensitivity at a distance of 200 ft is not allowed because the signal attenuation exceeds the threshold before the smoke reaches sufficient concentration.

Troubleshooting: Common Problems and Solutions

5.1 Continuous display fault of detector (yellow LED constantly on)

Possible cause inspection and resolution

The light path is completely blocked (≥ 96% shading). Check if there are any objects (such as chandeliers, flags, tools) that completely block the light beam

The detector is in alignment mode and should not be in alignment mode during normal operation

Inappropriate initial alignment, low signal strength. Re perform optical alignment to ensure that the digital signal strength reading reaches the maximum value (usually>90)

The self compensation limit has been reached (AGC cannot compensate for dust accumulation) to clean the optical window and reflector; If it still doesn't work, the detector may need to be replaced