Bosch DS426I, DS422I User Manual

Installation Instructions

DS422i and DS426i Dual Beam Photoelectric

Intrusion Detection Systems

1.0 Specifications

• Range: Indoors Outdoors DS422i 300 ft. (90 m) 100 ft. (30 m) DS426i 600 ft. (180 m) 200 ft. (60 m)

• Dimensions (HxWxD): 6.75 in. x 3.25 in. x 3.5 in.

171 mm x 82 mm x 87 mm

• Voltage: 12 to 28 VDC. Non-Polarized.

• Current: Transmitter Receiver

DS422i 15 mA 25 mA DS426i 30 mA 25 m A

• Standby: Intended for connection to DC power

supplies capable of supplying power if primary power fails.

• Relay: Alarm activated Form “C” with dry

contacts rated at 0.5 amps max. @ 30 VAC and DC.

• Tamper: Normally Closed with cover in place.

• Pointability: The optical module can be adjusted

±90° horizontally or ±24° vertically.

• Temperature: -13°F to +130°F (-25°C to +55°C).

• Trigger Response Time:50 to 700 milliseconds, selectable.

2.0 Installation Considerations

• Stay within the listed maximum range.

• Install the system with a clear line-of-sight between the transmitter

and receiver. If installed outdoors, make sure trees, weeds, plants, etc. will not interfere with the beams.

• Use care when installing near reflective surfaces (i.e. glossy walls

or floors). Care should be taken during alignment to ensure beams are line-of-sight aimed and are not reflecting off surfaces.

• Do not install the units where they may be immersed in water or

subject to corrosive liquids or sprays.

• Do not install the receivers where they will be facing an intense

source of light (e.g. a rising or setting sun). If the sun can not be avoided, mount the receiver slightly higher than the transmitter. Aim the receiver down at the transmitter.

• Do not install the receivers where sunlight could be reflected directly

into the receiver optics.

• Do not install either unit on movable surfaces or surfaces subject to

strong vibrations.

Wire Entrance

Response

Adjustment

Power LED

LEVEL ALARMGOOD

ACTIVE INFRARED SENSOR

Alignment

Voltage

POWER

ACTIVE INFRARED SENSOR

Jacks

Vertical

Fine Tuning

Screw

Alignment

Tool

Note:

Tool may be in any of four positions

Optical Module

Receiver

Cover Screws

Transmitter

Figure A - Location of the system’s major items.

• Place the provided template onto the mounting surface and mark the holes for its two mounting screws (supplied).

NOTE: Be sure all wiring is unpowered before routing.

• Route wiring (for wire size see Section 4.0) through the transmitter’s wire entrance, leaving enough to properly wire the transmitter.

• Mount the transmitter to the mounting surface. Firmly tighten the screws.

• Repeat this complete mounting procedure for the receiver. Be sure to mount the receiver in direct line-of-sight with the transmitter.

3.2 Pole Mounting

NOTE: The recommended mounting height is 3 feet (1 m). However,

mounting height will change depending on the anticipated intruder catch area.

NOTE: Use optional MB series poles or equivalent.

• Choose the appropriate mounting location. Install the poles with a clear line-of-sight between the transmitter and receiver.

• Remove the transmitter’s cover by loosening the Cover Screw (see Figure A).

• Firmly attach a mounting plate and U-clamp to the pole (see Figure B) with the screws supplied. Make sure they are line-of-sight aimed so the transmitter and receiver will be aligned.

Wiring Entrance

3.0 Mounting

3.1 Surface Mounting

NOTE: The recommended mounting height is 3 feet (1 m). However,

mounting height will change depending on the anticipated intruder catch area.

• Choose the appropriate mounting locations. They should be rigid and provide a clear line-of-sight between the transmitter and receiver.

• Remove the transmitter’s cover by loosening the cover mounting screw (see Figure A).

U-clamp

Figure B - Pole assembly

NOTE: Be sure all wiring is unpowered before routing.

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)

• Route wiring (for wire size see Section 4.0) through the mounting plate wire entrance (see Figure B), leaving enough to properly wire the transmitter.

• Route the wiring through the transmitter’s wire entrance.

• Slide the transmitter onto the mounting plate. Tighten with the mounting plate-to-unit screws.

• Repeat this complete mounting procedure for the receiver. Be sure to mount the receiver in direct-line-of sight with the transmitter.

4.0 Wiring

Only apply power after all connections have been made and inspected.

• Use the following chart (Figure C) to determine the minimum gauge wire needed per length of wire run between the power source and the last unit on the run. The chart is based on one system (one transmitter and one receiver) connected to the same wire run from the power source.

If more than one system is added to the run, the maximum length per gauge decreases and is determined by dividing the length found in the chart by the number of systems on the run.

DS422i Wiring Chart

SIZE

24 AWG(0.6mm) 22 AWG(0.8mm)

20 AWG(1.0mm) 18 AWG(1.2mm)

12 VDC

920 ft. (280m) 1,640 ft . (5 00m) 2,560 ft . (7 80m)

3,675 ft. (1120m)

24 VDC

790 ft. (240m)

1,440 ft. (440m)

2,300 ft. (700m)

3,280 ft. (1000m

5.0 Setup and Alignment

NOTE: Precise, correct alignment is a critical process for these

systems to operate effectively.

• Apply power to the units.

• Check the transmitter. The Power LED (see Figure A) should be on. If the lamp is not on, the unit is not receiving power.

• Locate the Alignment Tool (see Figure A) on either the Transmitter or Receiver.

• Slide the Alignment tool up and out of its holder (see Figure F) and slide it onto the Alignment Mount on whichever side of the Transmitter is most convenient for sighting through the viewfinder.

LOT.

DS426i Wiring Chart

SIZE

24 AWG(0.6mm) 22 AWG(0.8mm)

20 AWG(1.0mm) 18 AWG(1.2mm)

• Wire the receiver and transmitter terminal strips (see Figures D and E).

12 VDC

820 ft. (250m) 1,410 ft. (430m) 2,230 ft. (680m) 3,215 ft. (980m)

1,250 ft. (380m)

2,000 ft . (6 10m) 2,850 ft . (8 70m)

Figure C - Wire chart

24 VDC

690 ft. (210m)

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POWER ALARM TAMPER

Figure D - Receiver Wiring

POWER

TAMPER

Figure E - Transmitter Wiring

Figure F - Positioning the Alignment Tool

• From the side of the unit, look into the viewing port at the mirror. The view in the mirror is what is in line-of-sight of the optical module.

NOTE: Alignment may be made easier with the use of an alignment

light (see Section 8.0).

• Rotate the optical module until the image of the other unit is centered in the mirror (see Figure G). If initially aimed too high or low, adjust the Vertical Fine Tuning screw (see Figure A) until the unit is centered.

• Repeat this complete alignment sequence for the receiver’s optical module.

• When properly aligned the Receiver’s green GOOD LED should be lit.

6.0 Fine-tune Alignment

Meter readings are very important in providing maximum trip-safety margins (see Figure H). A 20,000 Ohm/volt (or greater) DC VOM is recommended.

When fine-tuning the transmitter and receiver, maximum meter readings occur at the transmitted beam’s center, which is also the receiver’s line-of-sight. A reduction in the system’s effectiveness will occur if the units are not properly aligned and fine-tuned.

Figure G - Image in mirror

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