Bosch DS484Q, DS486Q Installation Manual

DS484Q/DS486Q

Installation Instructions

Quad Beam

Photoelectric Detectors

DS484Q/DS486Q | Installation Instructions | 1.0 Overview

1.0 Overview

1.1 Description

The DS484Q and DS486Q are photoelectric quad beam detectors that use four pulsed infrared beams to activate an alarm relay upon detection of an intruder. Both models contain a transmitter that emits an invisible infrared beam, and a receiver. If the beam is broken, the receiver signals an alarm. Multiple channel operation provides increased system flexibility by allowing multiple devices to be used near each other without cross-talk or other interference.

1.2 Components

Figure 1: DS484Q/DS486Q Components

1 2

1 - Chassis 2 - Base 3 - Cover 4 - Mounting holes 5 - Vertical adjustment screw (upper) 6 - Terminal block (transmitter has five terminals,

receiver has nine terminals) 7 - Wire entrance 8 - Vertical adjustment screw (lower)

9 - Base mounting screws 10 - Optical module (upper) 11 - Scope (upper) 12 - Horizontal adjustment screw (upper) 13 - Operation panel (refer to Figure 2 or Figure 3) 14 - Optical module (lower) 15 - Scope (lower) 16 - Horizontal adjustment screw (lower) 17 –Cover mounting screw

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DS484Q/DS486Q | Installation Instructions | 1.0 Overview

Figure 2: DS486Q Transmitter Operation Panel

POWER

130

160

260

100 200

OUTDOOR

INDOOR

120

BEAM POWER CONTROL (m)

SWITCH

OFF ↔ ON

ITEM

OFF ON

1Group

23SEE CHART

BELOW

4NULL

OFF OFF

OFF

SW2 - 3 : CHANN EL

SW2 SW3

MODEL:DS486Q

320

180 360

200 400

ON ON

1 - POWER LED 2 - Beam power control 3 - DIP switches

Figure 3: DS486Q Receiver Operation Panel

ALIGNMENT IS COMPLETED

SWITCH

OFF ↔ ON

ITEM

OFF ON

1Group

23SEE CHART

BELOW

4AND/OR

AND OR

5BYPASS

OFF ON

SOUND

OFF ON

CHECK

SW2 - 3 : CHANNEL

OFF

SW2

OFF

SW3

OFF

WHEN ‘ ‘ IS OFF

200

150

100

INTERRUPTION

TIME (msec)

ON ON

ALIGNMENT

CHECK

TERMINAL S

ALARM

300

400

500

EDC LEVEL

1 - INTERRUPTION TIME switch 2 - Alignment check terminals 3 - ALARM LED 4 - Level meter 5 - Environmental discrimination circuit (EDC) LED 6 - DIP switches

1.3 Features

1.3.1 100 Times Sensitivity Allowance

Stable operation is maintained even if 99% of beam energy is cut by environmental disturbances such as rain, fog, or frost.

1.3.2 Beam Power Control

Use this feature to select the appropriate beam intensity for the detection range. Controlling beam intensity minimizes the risk of reflection off nearby walls and cross detection with other detectors.

1.3.3 Beam Interruption Time Control

Use this feature to change the beam interruption time to best fit the application.

1.3.4 Using Multiple Transmitter-and-Receiver Sets

Up to four transmitter-and-receiver sets can be stacked.

1.3.5 Selectable Beams

The beams in the DS484Q and DS486Q are configurable into eight different combinations (two groups by four channels). These combinations can eliminate false alarms that can occur from cross-talk when multiple beams are stacked, or when the transmitter and receiver are separated by a long distance.

The diameter of the transmitted beam increases with increased distance between the transmitter and receiver. At distances that approach the maximum range, the beam might reach two or more receivers. Refer to Section 2.1.2 Beam Spread on page 5 for additional information.

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DS484Q/DS486Q | Installation Instructions | 1.0 Overview

1.3.6 Selectable AND/OR Gate

The photoelectric intrusion detection system in the DS484Q and DS486Q provides alarm relay activation for different considerations. Use the DIP Switches to

Table 1: EDC BYPASS Switch States

Detector Status BYPASS Switch

select the required protection: AND gate – All four beams must be blocked

simultaneously to cause an alarm. This setting results in fewer false alarms caused by birds and other small animals.

Poor Environmental Condition*

OR gate – Either the upper or lower pairs of beams must be blocked. This setting can detect an intruder crawling on the ground.

1.3.7 Environmental Discrimination Circuit (EDC)

The Environmental Discrimination Circuit (EDC) sends a signal when maintaining stable operation becomes difficult due to environmental disturbances. The EDC detects the gradual loss of signal along the beam’s path because of dirt built up on the cover, or because of rain, fog, or snow. If the signal decreases by 95% over at least 4-seconds, the EDC activates the EDC LED (refer to Figure 3 on page 3) and relay. This indicates that something is partially blocking a beam, or that the covers need cleaning.

The EDC feature was not evaluated by Underwriters Laboratories (UL).

When either optical module is blocked for 3 or more seconds.

Figure 4: Receiver DIP Switches

When both optical modules are blocked for 3 seconds.

1 - DIP switches 1through 4 and 6 in the OFF

position 2 - DIP Switch 5 (EDC BYPASS Switch) in the

ON position

To use the EDC Bypass Switch, set the receiver’s DIP Switch 5 to ON or OFF (Figure 4). Refer to Table 1 for information about the functions and detector status.

∗ Poor environmental condition refers to difficulty in maintaining

stable operation due to environmental disturbances like fog or rain.

OFF

EDC LED lights and EDC signal is provided through the normally-closed relay output at the receiver.

The alarm is generated by loss of beam energy.

EDC LED turns on and EDC signal is provided

No alarm output is generated.

After the specified interruption time, the ALARM LED turns ON and alarm signal is generated.

If beams are blocked for more than 3 seconds, EDC LED turns ON, and EDC signal is generated.

BYPASS Switch ON

EDC LED turns on and EDC signal is provided through the normally-closed relay output at the receiver.

With the loss of beam energy, the ALARM LED lights but alarm signal is not generated (alarm relay is automatically shunted).

EDC LED turns on and EDC signal is provided.

If another optical module is blocked, the ALARM LED turns ON, but no alarm signal is generated.

After the specified interruption time, the ALARM LED turns ON, and alarm signal is generated.

EDC LED does not turn ON, and EDC signal is not provided.

Connect the EDC to a trouble circuit.

Check the system after the EDC relay activates.

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DS484Q/DS486Q | Installation Instructions | 2.0 Installation

2.0 Installation

2.1 Installation Considerations

Read the following information before installing, wiring, and performing regular maintenance on the equipment.

Do not install the detector:

• near trees and plants where falling leaves can block

the beam

• where intense sources of light and sunlight can

reflect directly into the receiver optics

A beam of light shining at a ±3-degree angle of each receiver can cause false

• on movable surfaces

• where subject to splashing water or sea spray

• beyond the maximum range of each model

• where strong electrical noise or radio frequency

interference occurs

• where strong vibration occurs

• in the presence of corrosive or explosive gas

Face upper and lower optical modules toward each other on the transmitter and the receiver.

alarms.

• Do not install or wire detectors during a

thunderstorm.

• Do not supply power until all wiring is

completed.

• Maintain power between 10.5 VDC and

28 VDC at all times.

• Do not disassemble or modify the base.

2.1.1 Beam Strength over Distance

The beam strength is best if used within the maximum range of the detectors. If used for shorter distances, excess beam energy reaches the receiver resulting in reflection off nearby walls and incorrect communication with other detectors.

2.1.2 Beam Spread

The beam spread is +0.7°. Refer to Figure 5 and Table 2

to determine the installation conditions.

Table 2: Beam Spread Distances

Between Transmitter and Receiver

∗

Refer to Figure 5.

∗

m ft m ft m ft

20 66 0.5 1.7 0.8 2.6

40 131 1.0 3.3 1.3 4.3

60 197 1.5 4.9 1.8 5.9

80 263 2.0 6.6 2.2 7.2

100 328 2.5 8.2 2.7 8.9

120 394 3.0 9.8 3.2 10.5

140 459 3.5 11.5 3.7 12.1

160 525 4.0 13 4.2 13.7

180 591 4.5 14.8 4.7 15.4

200 656 6.0 16.4 5.2 17.1

Horizontal Spread∗

Total Vertical Spread∗

Figure 5: Beam Spread

1 - Beam spread 2 - Distance between transmitter and receiver

3 - Horizontal spread 4 - Total vertical spread

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DS484Q/DS486Q | Installation Instructions | 2.0 Installation

2.2 Mounting

Figure 7: Using U-clamps

Mount the DS484Q and DS486Q in one of two ways:

• Pole mounted

• Wall mounted

2.2.1 Pole Mounting

1. Choose an appropriate mounting location for

the system. Install poles with a clear line-ofsight between the transmitter and the receiver.

2. Loosen the transmitter’s cover mounting screw

and remove the cover. Refer to Items 3 and 17 in Figure 1 on page 2.

3. Loosen the two mounting screws and remove

the chassis by sliding it down against the base Refer to Refer to Items 1 and 9 in Figure 1 on

page 2.

Single Unit Pole Mounting

1. Use the short clamping screws to attach the

mounting plates to the chassis. Refer to Figure 6.

2. If the pole diameter is between 3.8 cm and 4 cm

(1.5 in. and 1.6 in.), use the shorter flange (1.0 cm [0.4 in.]) of the mounting plate. If the pole diameter is between 4 cm (1.6 in.) and

4.3 cm (1.7 in.), use the longer flange (1.5 cm [0.6 in.]) of the mounting plate. This ensures that the end of the screw does not contact the pole.

Figure 6: Using Mounting Plates

1 - U-clamp 2 - Long clamping screws

4. Insert the wiring through the chassis wire entrance,

leaving enough wire to access the transmitter’s terminal block. Refer to Items 6 and 7 in Figure 1 on page 2.

5. Slide the transmitter onto the chassis. Tighten the

base mounting screws. Refer to Figure 1 on page 2.

6. Repeat the mounting process for the receiver.

Make sure to mount the receiver in direct line-ofsight of the transmitter.

1 - Mounting plate 2 - Chassis 3 - Short clamping screws

3. Use the U-clamps and the long clamping screws to

attach the chassis firmly. Refer to Figure 7. Make sure the transmitter is mounted in direct line-ofsight of the receiver.

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