Bosch DS840, DS825, DS840T, DS825T Installation Instructions Manual

Installation Instructions

DS825, DS825T, DS840, DS840T

TriTech PIR/Microwave Intrusion Detectors

1.0 General Information

The DS825 Series and DS840 Series are microprocessor-based TriTech Passive Infrared/Microwave Intrusion Detectors that provide immunity to false alarms caused by pets [a dog up to 100 lbs. (45 kg) or up to 10 cats, and other small animals such as birds and rodents]. Patented Passive Infrared and Microwave signal processing provides excellent catch performance with freedom from false alarms.

2.0 Specifications

• Input Power: 6 to 15 VDC, 15 mA DC nominal (up to 35 mA DC during walk testing).

• Standby Power: No internal standby battery . Connect to DC power sources capable of supplying standby power. For each hour of standby time needed, 15 mAh are required. For UL Listed Requirements,

four hours (60 mAh) are required.

• Alarm Relay: Silent operating Normally Closed reed relay. Contacts rated 3 W, 125 mA, 28 VDC maximum for DC resistive loads; and protected by a 4.7 Ω,1/2 W resistor in the common “C” leg of the relay. Do not use with capacitive or inductive loads.

• Temperature: -40°F to +120°F (-40°C to +49°C). For

UL Certificated Installations, the temperature range is +32°F to +120°F (0°C to +49°C).

• Microwave Frequency:

DS825(T)/DS840(T): 10.525 GHz (UL Listed) DS825TA/DS840TA: 10.687 GHz (Export only, not UL Listed) DS825TB/DS840TB: 9.9 GHz (Export only, not UL Listed)

• Coverage:

DS825 Series: 25 ft. x 25 ft. (8 m x 8 m) DS840 Series: 40 ft. x 40 ft. (12 m x 12 m)

• Internal Pointability: +1° to –18° Vertical.

• Optional Tamper: The DS825T, DS825TA, DS825TB, DS840T, DS840TA, and DS840TB have a Normally Closed (with cover on) tamper switch. Contacts rated at 28 VDC, 125 mA max. Connect the tamper circuit to a 24-hour protection circuit.

• Options: B335 Low Profile Swivel Mount Bracket and B338 Ceiling Mount Bracket. (The use of brackets may reduce range and increase dead zone areas.)

• Reading Bosch Security Systems, Inc. Product Date Codes

For Product Date Code information, refer to the Bosch Security Systems, Inc. Web site at: http://www.boschsecurity.com/datecodes/

• Compliance: This device complies with Part 15 of the FCC Rules and with RSS-210 of Industry and Science Canada. Operation is subject to the following two conditions:

(1) this device may not cause harmful interference, and (2) this device must accept any interference received, including interference that may cause undesirable operation.

Changes or modifications not expressly approved by Bosch Security Systems can void the user's authority to operate the equipment.

3.0 Mounting

3.1 Mounting Considerations

• Never install the detector in an environment that causes a constant alarm in one technology; it should never be left to operate with the tri-color LED in a constant green, yellow, or red condition. A detector with one technology in constant alarm, will cause an alarm output whenever the other technology alarms. Good installations start with the LED OFF when there is no target motion. The best installations will have background noise voltages below recommended limits.

• Point the unit away from outside traffic (e.g. roads, alleys, and parking lots).

NOTE: Microwave energy will pass through glass and most

common non-metallic construction walls.

• Avoid direct or indirect sunlight.

• Point the unit away from glass exposed to the outdoors and objects that may change temperature rapidly.

NOTE: The PIR detector will react to objects rapidly changing

temperature within its field-of-view.

• Eliminate interference from nearby outside sources.

• Avoid installations where rotating machines (e.g. ceiling fans) are normally in operation within the coverage pattern.

• Select a location likely to intercept an intruder moving across the coverage pattern.

• The surface should be solid and vibration-free.

• Mounting height range is 6 to 8 ft. (1.8 to 2.4 m). The recommended height is 7.5 ft. (2.3 m). Mounting height for Pet Applications is 6.5 ft. (2 meters).

3.2 Mounting the Detector

• Remove the cover by inserting a thin flathead screwdriver into the locking tab hole at the bottom front of the detector, pressing in, and pulling the cover up and forward.

NOTE: Mount the unit with the terminal block up.

• Remove the circuit board from the base by pulling outward slightly on one of the Circuit Board Locking Tabs (see Figure A).

LED Jumper

Cable Knockout

Ter minal

Block

Circuit Board

Locking Tab

(One on

Each Side)

• Remove the mirror.

Microwave Adjustment

Tamper

LED

Mirror

Assembly

Terminal s

Retainer Tabs (2)

Bracket Mounting

Rear enclosure and mounting holes

Figure A - Location of Features

Circuit Board

Hole

Surface Mounting Holes (4)

Wiring Knockouts

Mirror Tracks (2)

Corner Mounting Holes (2)

• Break away the Cable Knockout wire entrance.

• Open two holes for surface or corner mounting (See Figure A).

• Mark the location for the mounting screws.

- Use the enclosure as a template.

- Pre-start the mounting screws.

• Route wiring as necessary. Route to the rear of the base and through the wire entrance. Make sure all wiring is unpowered

before routing.

• Securely attach the base to the mounting surface.

• Return the circuit board to the base.

• Install the mirror.

4.0 Wiring

Apply power ONLY after all connections have been made and inspected. Do NOT coil excess wiring inside the detector.

• Terminals (–) & (+): Power limits are 6 to 15 VDC. Use no smaller than #22 AWG (0.8 mm)

NC C

wire pair between the detector and the power source.

• Terminals C & NC: Alarm relay (reed) contacts. Do not use with capacitive or inductive loads.

• Tamper contacts: "T" Models only.

Cover

Off

Connect to a 24-hour Protection Circuit

Alarm

Plug the wire entrance hole with the foam plug provided after all wiring connections have been made.

6.0 LED Operation

The detector uses a tricolor LED to indicate the various alarm and supervision trouble conditions that may exist. See the following chart:

LED

Steady red Steady yellow Steady green

Flashing red

Flashing red (4 pulse sequence)

Microwave activation (walk test)

Warmup period after power-up

If the detector experiences a Microwave or PIR self-test failure, it is in need of replacement. During walk testing, the LED will light for the first technology (microwave or PIR) and then light red to indicate a detector alarm. The LED will not indicate activation of the second technology by lighting its color.

7.0 Feature Selection

• LED On/Off Pins: Placing the jumper across the LED selection pins allows operation of the tricolor LED. If the tricolor LED indication is not desired after setup and walk tests are completed, move the jumper from across the LED selection pins. Moving the jumper to the OFF position does not prevent the tricolor LED from indicating a supervision trouble condition.

Cause

Unit alarm

PIR activation (walk test)

Microwave or PIR failure -

Replace Unit

LED ON/OFF JUMPER PLACEMENTS

Program Plug

in the

ON Position

Edge of

Circuit Board

LED

Program Plug

in the

OFF Position

Edge of

Circuit Board

LED

LED Pins

8.0 Setup and Walk Tests

• Select the vertical starting angle from the chart.

Broad Coverage Mirror

Mounting

Height

6.5 (2.0)

7.5 (2.3)

8.5 (2.6) Height and desired Range

listed in feet (meters)

• The angle adjust markings are on the mirror. Slide the mirror forward or back until the angle hash marks are in-line with the markers on each side of the frame.

NOTE: See Section 11.0 for Pet Applications.

• Place the LED Jumper in the ON position.

• Wait at least two minutes, after applying power, to start walk tests.

NOTE: During the warm-up period, the tricolor LED will flash red until

the unit has stabilized (approximately one to two minutes) and has seen no movement for two seconds. When the LED stops flashing, the detector is ready to be tested. With no motion in the protection area, the LED should be OFF. If the LED is on, recheck the protection area for disturbances affecting the microwave (yellow) or PIR (green) technologies.

Establishing PIR Pattern Coverage

• Turn the Microwave range adjust to minimum and replace the cover.

• Walk test across the pattern at its farthest edge, then several times closer to the detector. Start walking from outside of the intended protection area, and observe the tricolor LED. The edge of the pattern is determined by the first green, PIR activation of the LED (or the first red activation if the yellow microwave LED activates first).

• Walk test from the opposite direction to determine both boundaries.

NOTE: The center of the pattern should be pointed toward the

center of the intended protection area.

• While standing 10 to 20 ft. (3 to 6 m) from the detector, slowly bring your arm up and into the pattern to mark the lower boundary on PIR alarm. Repeat from above for the upper boundary.

NOTE: The center of the pattern should not be tilted upward.

If the desired coverage cannot be achieved, try angling the coverage pattern up or down to assure the pattern is not aimed too high or low.

Establishing Microwave Coverage

• The tricolor LED should be OFF before walk testing.

• Walk test across the pattern at the intended coverage’s farthest end. Start walking from outside the intended protection area and observe the tricolor LED. The edge of the microwave pattern is determined by the first yellow, microwave activation of the LED (or the first red activation if the green PIR LED activates first).

• If adequate range can not be reached, increase the Microwave Range Adjust slightly. Continue walk testing (waiting one minute after removing/replacing the cover) and adjusting the range until the farthest edge of desired coverage has been accurately placed.

DS825 DS840

25 (7.5) 40 (12)

-4°

-6°

-10°

-12°

Required Settings for Pet Applications

-8°

MW Adjustment

Minimum

Wait one minute after removing/replacing the cover so the microwave portion of the detector can settle. Wait at least ten seconds between the following walk testing procedures.

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