System-sensor BEAM200 and BEAM200S Manuel d'utilisateur télécharger pdf (Page 4)

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) 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 op-

tical 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.

FIGURE 5A. REFLECTOR MOUNTING GUIDELINES:

WALL

REFLECTOR

ACCEPTABLE MOUNTING

LOCATIONS FOR REFLECTOR

C0258-00

FIGURE 5B. REFLECTOR MOUNTING GUIDELINES:

10 MAXIMUM

OPTICAL LINE OF SIGHT

REFLECTOR

C0259-00

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 a mini-

mum 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 re-

flector 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 di-

rected 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 re-

flector 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 spe-

cific 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 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 au-

thority 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" (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 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 opera-

tion. 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 de-

tector before the alignment procedure has been completed the detector may

enter alarm or fault.

D400-74-00 4 I56-2289-005R

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System-sensor BEAM200 and BEAM200S Manuel d'utilisateur Page 4

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