Bosch DS484Q Manuale utente

Installation Instructions

Quad Beam

Photoelectric Detectors

DS484Q/DS486Q

DS484Q/DS486Q |Installation Instructions | 1.0 Overview

2 Bosch Security Systems, Inc. | 7/05 | 4998138530F

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 3

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

DS484Q/DS486Q |Installation Instructions | 1.0 Overview

Bosch Security Systems, Inc. | 7/05 | 4998138530F 3

Figure 2: DS486Q Transmitter Operation Panel

OUTDOOR

INDOOR

BEAM POWER CONTROL (m)

120

100

200

130

260 160

320

200

400

180

360

MODEL:DS486Q

SWITCH

OFF ↔ON

No ITEM OFF ON

1Group AB

3SEE CHART

BELOW

4NULL --

SW2 - 3 : CHANNEL

OFF

SW2

SW3

OFF

POWER

1 - POWER LED

2 - Beam power control

3 - DIP switches

Figure 3: DS486Q Receiver Operation Panel

INTERRUPTION

TIME (msec)

100 150 200 300

400

500

ALIGNMENT IS COMPLETED

WHEN ‘ ‘ IS OFF

SW2 - 3 : CHANNEL

OFF

SW2

SW3

OFF

ON ALIGNMENT

CHECK

TERMINALS

SWITCH

OFF ↔ON

No ITEM OFF ON

1Group AB

3SEE CHART

BELOW

4AND/OR

AND OR

5BYPASS

OFF ON

6SOUND

CHECK OFF ON

EDC LEVEL

ALARM

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.

DS484Q/DS486Q |Installation Instructions | 1.0 Overview

4 Bosch Security Systems, Inc. | 7/05 | 4998138530F

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

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.

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).

Figure 4: Receiver DIP Switches

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.

Connect the EDC to a trouble circuit.

Check the system after the EDC relay

activates.

Table 1: EDC BYPASS Switch States

Detector Status BYPASS Switch

OFF

BYPASS Switch

EDC LED lights

and EDC signal

is provided

through the

normally-closed

relay output at

the receiver.

EDC LED turns

on and EDC

signal is provided

through the

normally-closed

relay output at

the receiver.

Poor

Environmental

Condition*

The alarm is

generated by loss

of beam energy.

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

EDC LED turns

on and EDC

signal is

provided.

When either

optical module is

blocked for 3 or

more seconds.

No alarm output

is generated.

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.

After the

specified

interruption time,

the ALARM LED

turns ON, and

alarm signal is

generated.

When both

optical modules

are blocked for 3

seconds.

If beams are

blocked for more

than 3 seconds,

EDC LED turns

ON, and EDC

signal is

generated.

EDC LED does

not turn ON, and

EDC signal is not

provided.

∗Poor environmental condition refers to difficulty in maintaining

stable operation due to environmental disturbances like fog or

rain.

DS484Q/DS486Q |Installation Instructions | 2.0 Installation

Bosch Security Systems, Inc. | 7/05 | 4998138530F 5

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

alarms.

•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.

•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∗

Horizontal

Spread∗

Total Vertical

Spread∗

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

∗Refer to Figure 5.

Figure 5: Beam Spread

1 - Beam spread

2 - Distance between transmitter and receiver

3 - Horizontal spread

4 - Total vertical spread

DS484Q/DS486Q |Installation Instructions | 2.0 Installation

6 Bosch Security Systems, Inc. | 7/05 | 4998138530F

2.2 Mounting

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-of-

sight 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 9in 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 - 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-of-

sight of the receiver.

Figure 7: Using U-clamps

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 7in 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-of-

sight of the transmitter.

DS484Q/DS486Q |Installation Instructions | 2.0 Installation

Bosch Security Systems, Inc. | 7/05 | 4998138530F 7

Back-to-Back Pole Mounting

Figure 8: Back-to-Back Pole Mounting

1. With spacers between the two units, mount the

transmitter and the receiver back-to-back. Refer to

Figure 8.

2. Use nuts and bolts to attach each unit firmly to the

pole.

3. Make sure that the units are aimed so that the

transmitter and the receiver in the same set are

aligned with each other.

2.2.2 Wall Mounting

Refer to Figure 9 for Steps 1 through 7.

1. Loosen the transmitter’s cover mounting screw and

remove the cover.

2. Loosen the two base mounting screws and remove

the chassis by sliding it down against the base.

3. Insert wiring through the chassis wire entrance,

leaving enough wire to access the transmitter’s

terminal block.

4. Insert the chassis mounting screws through the

mounting holes to mount the chassis on the

mounting surface.

5. Insert wiring through the wire entrance of the

transmitter. Remove the wire entrance at the

bottom of the transmitter.

6. Reattach the transmitter to the chassis.

7. Repeat this mounting procedure for the receiver.

Make sure it is mounted in a direct line-of-sight to

the transmitter.

Figure 9: Wall Mounting

1 2 3

1 - Chassis

2 - Base

3 - Cover

4 - Mounting holes

5 - Terminal block

6 - Wire entrance

7 - Base mounting screws

8 - Cover mounting screw

DS484Q/DS486Q |Installation Instructions | 3.0 Wiring

8 Bosch Security Systems, Inc. | 7/05 | 4998138530F

3.0 Wiring

Apply power only after all connections are

made and inspected.

Install these detectors according to the

National Electrical Code, NFPA-70.

Table 7 is based on one set (transmitter and receiver)

connected to the same wire run from the power source.

When installing two or more sets on one wire run,

calculate the maximum length by dividing the

maximum listed wire length by the number of sets

installed.

Connect the transmitters and receivers to a UL Listed

power supply or control panel capable of providing

standby power for at least 4 hours.

Test this system at least once a week to ensure proper

operation.

Table 3: Wire Length / AWG Chart

Maximum Distance [m (ft)]

DS484Q DS486Q

Wire

Gauge

[mm2

(AWG)] 12 VDC 24VDC 12VDC 24VDC

0.8

(22)

(295)

850

(2789)

(295)

730

(2395)

1.06

(19)

180

(591)

1670

(5479)

150

(492)

1420

(4659)

1.37

(17)

330

(1083)

3020

(9908)

280

(919)

2580

(8465)

1.8

(14)

590

(1936)

5370

(17618)

500

(1640)

4570

(14993)

Figure 10: Transmitter, Terminal Block Wiring

COM

1 - Power (non-polarized), 10.5 VDC to 28.0 VDC

2 - Tamper Output (1b), 30 VDC 0.1 A

3 - Synchronized wiring

Figure 11: Receiver, Terminal Block Wiring

COM

EDC

TAMPER

1 - Power (non-polarized), 10.5 VDC to 28.0 VDC

2 - Alarm Output (1c), 30 VDC 0.2 A

3 - EDC Output (1b), 30 VDC 0.2 A

4 - Tamper Output (1b), 30 VDC 0.1 A

DS484Q/DS486Q |Installation Instructions | 3.0 Wiring

Bosch Security Systems, Inc. | 7/05 | 4998138530F 9

Figure 12: Single Set - Wiring Example

COM

1 - Terminal block on transmitter and receiver

2 - Receiver

3 - Transmitter

4 - Power output

5 - Alarm input (INC)

Figure 13: Two Sets on the Run – Wiring Example

COM

1 - Terminal block on transmitter and receiver

2 - Receiver

3 - Transmitter

4 - Power output

5 - Alarm input (INC)

DS484Q/DS486Q |Installation Instructions | 4.0 Setup and Alignment

10 Bosch Security Systems, Inc. | 7/05 | 4998138530F

4.0 Setup and Alignment

4.1 Setup

4.1.1 Receiver Setup

Figure 14: Receiver Setup Switches

INTERRUPTION

TIME (msec)

100 150 200 300

400

500

ALIGNMENT IS COMPLETED

WHEN ‘ ‘ IS OFF

SW2 - 3 : CHANNEL

OFF

SW2

SW3

OFF

ON ALIGNMENT

CHECK

TERMINALS

SWITCH

OFF ↔ON

No ITEM OFF ON

1Group AB

3SEE CHART

BELOW

4AND/OR

AND OR

5BYPASS

OFF ON

6SOUND

CHECK OFF ON

EDC LEVEL

ALARM

1 - INTERRUPTION TIME switch

2 - DIP Switch 4 (ON or OFF for the AND/OR

gate)

3 - DIP Switch 5

2. Select the beam alarm condition by setting DIP

Switch 4 ON or OFF for the AND/OR gate. Refer

to Figure 14.

•If DIP Switch 4 is ON, the OR condition is

selected. The upper or lower beam pairs must

be broken to cause an alarm.

•If DIP Switch 4 is OFF, the AND condition is

selected. The upper and lower beam pairs

must be broken to cause an alarm.

3. Choose whether or not to bypass alarms by setting

DIP Switch 5 to ON or OFF when the EDC

activates. Refer to Section 1.3.7 Environmental

Discrimination Circuit (EDC) on page 4 for more

information.

The EDC is always on. DIP Switch 5 (BYPASS)

controls the alarm condition relative to the EDC

relay status. Refer to Figure 4 on page 4.

•If DIP Switch 5 is ON, the system alarms only

if the EDC relay is not activated. If the EDC is

activated, the system does not indicate an

alarm.

•If DIP Switch 5 is OFF, the system alarms

regardless of whether the EDC relay is

activated or not.

Connect the EDC to a trouble circuit, and

check the system any time the EDC relay

activates.

If the EDC remains activated for prolonged

periods when the beam path is clear, the

beam might be misaligned. Refer to

Section 4.2 Alignment on page 13 to re-

align the beam.

4. Use a Phillips head screwdriver to adjust the rotary

INTERRUPTION TIME switch according to how

sensitive you want the detector to be to movement

(catch performance). Refer to Figure 14 for the

location of the INTERRUPTION TIME switch.

Refer to Table 4 for interruption times and

corresponding catch performance examples.

For UL applications, the interrupt time

cannot be set above 75 ms.

For best performance when using the AND

mode, do not exceed 100 ms beam

interruption time.

Table 4: Beam Interruption Time Examples

Interrupt Time (ms) Catch Performance

50 Running

100 Jogging

200 Fast Walking

300

400 Normal Walking

500 Slow Moving

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