Bosch DS820 User manual

Installation Instructions
for the DS820 Series
TriTech Microwave/PIR Intrusion Detectors
1.0 Specifications
•Dimensions (HxWxD): 5 in. x 2.8 in. x 2.2 in.
(12.7 cm x 7.1 cm x 5.6 cm)
•Input Power: 9 to 15 VDC, 16 mA DC nominal
(up to 48 mA DC during walk testing
or trouble conditions). Use only an
Approved Limited Power Source.
•Standby Power: No internal standby battery.
Standby power must be provided by
an Approved Limited Power Source.
Sixteen mAh required for each hour of
standby time needed. For UL Listed
Requirements, four hours (64 mAh)
minimum are required.
•Alarm Relay: Silent-operating Normally Closed
reed relay. Contacts rated 3 watts,
125 mA, 28 VDC maximum for DC
resistive loads; and protected by a
4.7 ohm, ½ watt resistor in the
common "C" leg of the relay. To be
connected to a SELV (Safety Extra-
Low Voltage) circuit only. Do not use
with capacitive or inductive loads.
•Tamper: Normally Closed (with cover on).
Contacts rated at 28 VDC, 125 mA
max. To be connected to a SELV
(Safety Extra-Low Voltage) circuit only.
Connect tamper circuit to a 24-hour
protection circuit.
•Temperature Range: -40°F to +120°F (-40°C to +49°C).
For UL Listed requirements, the
temperature range is +32°F to +120°F
(0°C to +49°C), indoor use.
•Microwave Frequency:
DS820: 10.525 GHz (UL Listed)
DS820A: 10.687 GHz (Export Only, not UL
Listed)
DS820B: 9.9 GHz (Export Only, not UL
Listed)
•Coverage: 20 ft. by 20 ft. (6.1 m by 6.1 m)
•InternalPointability: +2° to –10° Vertical, ±10° Horizontal.
•Options: B328 Gimbal Mount Bracket,
B335 Low Profile Swivel Mount
Bracket, B338 Ceiling Mount
Bracket
NOTE: Use of a bracket may reduce range and increase dead
zone areas; not recommended for installations containing
pets.
• 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.
2.0 Installation Considerations
•Never install the detector in an environment that causes an
alarm condition in one technology. Good installations start with
the LED OFF when there is no target motion. It should never be
left to operate with the tri-color LED in a constant or intermittent
green, yellow, or red condition.
• Point the unit away from outside traffic (roads/alleys).
NOTE: Microwave energy will pass through glass and most
common non-metallic construction walls.
• Avoid installations where rotating machines (e.g. ceiling fans)
are normally in operation within the coverage pattern. 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.
3.0 Mounting
• 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 feet (1.8 to
2.4 m). Recommended mounting height is 6.5 feet ( 2 m).
• Remove the cover. Insert a flathead screwdriver into the locking
tab hole at the bottom front of the detector. Pull the cover up
and forward.
Vertical
Adjust
Screw
Tri-color
LED
Terminal
Strip
LED
On/Off
Pins
MW
0°
- 4°
- 8°
On
Off
Microwave
Range Adjust
PIR
Sensitivity
Selection Pins
Vertical Adjust
Scale
Look Down Lens
MIN MAX
Face of Lens
(masking area)
Corner Mount
Knockout (4)
Surface Mount
Knockout (2)
Wire
Entrances
Bracket Mount
Knockout
Vertical Adjust
Screw Mount
Cover Tab and
Locking Screw Hole
Wire
Entrances
• Remove the circuit board from the base. Loosen the Vertical
Adjust Screw and slide the circuit board down, then out.
• Break away the appropriate thin-wall wire entrance and
mounting hole coverings in the base.
• Using the base as a template and aligning it so that the
detector will be mounted with the terminal block at the top and
the PIR lens at the bottom, mark the location of the mounting
holes on the mounting surface. 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.

Page 2 © 2011 Bosch Security Systems, Inc. DS820 Series Installation Instructions
• Securely attach the base to the mounting surface.
• Return the circuit board to the base and tighten the Vertical
Adjust Screw.
4.0 Wiring
CAUTION
Only apply power after all connections have been
made and inspected. Do not coil excess wiring
inside detector.
NOTE: Input power must use only an Approved Limited Power
Source. Alarm and Tamper Contacts to be connected to a
SELV (Safety Extra-Low Voltage) circuit only.
1234
–+CNC
Alarm
Relay
Alarm
5678
SP T SPT
Tamper
9-15 VDC
Input Tamper
•Terminals 1 (–) & 2 (+): Voltage limits are 9 to 15 VDC. Use no
smaller than #22 AWG (0.8 mm) wire pair between the
detector and the power source.
•Terminals 3 & 4: Alarm relay (reed) contacts rated 3 watts,
125 mA, 28 VDC maximum for DC resistive loads and
protected by a 4.7 ohm, ½ watt resistor.
NOTE: Do not use with capacitive or inductive loads.
•Terminals 5 and 8: Spare.
•Terminals 6 & 7: Tamper contacts rated at 28 VDC, 125 mA.
NOTE: Plug the wire entrance hole with the foam plug provided
after all wiring connections have been made.
5.0 LED Operation
The detector uses a tri-color LED to indicate the various alarm and
supervision trouble conditions that may exist. See chart below.
LED CAUSE
Steady red Unit alarm
Steady yellow Microwave activation (walk test)
Steady green PIR activation (walk test)
Flashing red Warm-up period after power-up
Flashing red (4 pulse sequence) Replace Unit
If the detector experiences a Microwave or PIR
self-test failure, it is in need of replacement.
NOTE: 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.
6.0 Feature Selection
6.1 LEDOn/OffPins
The ON position allows operation of the tri-color
LED. If LED indication is not desired after setup and walk tests are
completed, place in the OFF position. The OFF position does not
prevent the LED from indicating supervision trouble conditions.
6.2 PIR Sensitivity Selection Pins
For selection, place the plug across the pins
marked STD for Standard or INT for
Intermediate mode.
• Standard Sensitivity: The recommended setting for
maximum false alarm immunity. Tolerates environmental
extremes on this setting. Required setting for Pet Immunity.
• Intermediate Sensitivity: The recommended setting for
non-pet applications where an intruder is expected to
cover only a small portion of the protected area.
Tolerates normal environments on this setting. This
setting will improve your intruder catch performance.
7.0 Set-up and Walk Tests
Select the vertical starting angle from this chart:
To adjust the vertical
starting angle for the
desired mounting height
and range, loosen the
vertical adjust screw and
slide the board up, to point
the angle down. Note the
settings on the vertical
adjust scale.
NOTE: The proper vertical
angle must be selected for installations containing pets.
See Section 11.0
• Place the LED plug in the ON position and replace the cover.
7.1 Establishing PIR Pattern Coverage
• Turn the Microwave range adjust to minimum.
• Replace the cover and snap it into place. This will close the
tamper switch.
•Wait two minutes minimum after applying power to start walk
tests.
NOTE: During the warm-up period, the tri-color LED will flash red
until the unit has stabilized (approximately 1 to 2 minutes)
and has seen no movement for two seconds. When the
tri-color LED stops flashing, the detector is ready to be
tested. With no motion in the protection area, the tri-color
LED should be OFF. If the LED is on, re-check the
protection area for disturbances affecting the microwave
or PIR technologies.
• 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 tri-color 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. The center of the pattern should be pointed
toward the center of the intended protection area.
NOTE: The pattern may be moved ±10° horizontally by rotating the
lens window left or right.
• Slowly bring your arm up and into the pattern to mark the lower
boundary on PIR alarm. Perform this task at 10 to 20 ft. (3 to
6 m) from the unit. Repeat from above for the upper boundary.
The center of the pattern should not be tilted upward.
NOTE: 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. The angle of the PIR pattern may be
vertically positioned between -10° and +2° by loosening
the Vertical Adjust screw and sliding the circuit board up or
down. Moving the board up will angle the pattern
downward.
• Tighten the Vertical Adjust screw when positioning is completed.
DS820 Range
Mounting
Height 20 ft. (6 m)
6.5 ft. (2 m) -9°
7.0 ft. (2.3 m) -10°
8.0 ft. (2.4 m) -10°
On
Off
INT
STD

DS820 Series Installation Instructions © 2011 Bosch Security Systems, Inc. Page 3
7.2 Establishing Microwave Coverage
NOTE: It is important to wait one minute after removing/replacing
the cover so the microwave portion of the detector can
settle, and to wait at least ten seconds between the
following walk testing procedures.
• The tri-color 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 tri-color 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.
NOTE: Do not adjust the microwave range higher than required.
Doing so will enable the detector to catch movement
outside of the intended coverage pattern.
• Walk test the unit from all directions to determine all the
Microwave pattern boundaries. Wait at least ten seconds
between walk tests.
7.3 Establishing Detector Coverage
• The tri-color LED should be OFF before walk testing.
• Walk test the unit from all directions to determine the detection
boundaries. A detector alarm is signaled by the first red
activation of the tri-color LED after an initial green or yellow
activation.
8.0 Supervision Features
The supervision features function as follows:
•PIR/Microwave: The complete circuit operation of these
subsystems is checked approximately every 12 hours. If the
PIR or MW subsystem fails, the tri-color LED will flash red 4
times per cycle and the unit should be replaced.
•Default: If the microwave subsystem fails, the detector will
default to PIR technology protection. The PIR signal sensitivity
will automatically change from INT to STD.
9.0 Maintenance
At least once a year, the range and coverage should be verified. To
ensure continual daily operation, the end user should be instructed
to walk through the far end of the coverage pattern. This ensures
an alarm output prior to arming the system.
10.0 Coverage Patterns
The protected coverage area is where the microwave and PIR
patterns overlap.
An optional Look Down lens is located under the detector. This
lens must be unmasked before it is operational. Use caution to
remove the black mask only. Do not attempt to remove the white
lens assembly. The Look Down lens is not recommended for
installations containing pets or small animals. The Look Down
zone is shown in black on the Coverage Pattern drawings.
0
0
ML
ABD
F
H
J
XTPI
ZG
C
N
R
VWSOE
K
Q
U
Y
3
0
5
1.6Meters
TOP VIEW
10
10
5
05 10Feet 15 20
1.5
1.5
3
3.2 4.8 6.4
0
0
2
-9°
V-Y
Z
Meters 1.6 3.2 4.8 6.4 3
20151050Feet
0
10
6½
R-U
Remove masking for Look Down Zone.
SIDE VIEW
10.1 Pattern Masking
The PIR coverage pattern may be masked using masking tape or
electrical tape on the inside of the lens. Always walk test for the
desired coverage after masking.
Grooved side of
DS820 Lens
ABCDEFGHIJKLM
VNRWSOZPT
XUQ Y
NOTE: Masking only eliminates the PIR portion of the coverage
and has no effect on the microwave pattern.

2/11
DS820 Series Installation Instructions
P/N: F01U068626-11 Page 4
© 2011 Bosch Security Systems, Inc.
130 Perinton Parkway, Fairport, New York 14450
www.boschsecurity.com
6.5 ft.
(2 m)
INT
STD
11.0 Special Instructions for Installations
Containing Pets
The DS820 will provide reasonable protection from nuisance
alarms caused by the following sources:
• One dog up to 100 pounds (45 kg)
• Two dogs up to 60 pounds each (27 kg each)
• Up to 10 cats
• Multiple small rodents, such as rats
• Random flying birds
To take full advantage of the DS820's Signature Recognition
Technology, the following guidelines should be followed:
• Mount the detector 6.5 ft. (2 m) high and adjust
the PIR angle to -5°.
• Set the PIR sensitivity for Standard (STD).
• Mount where the animals can not
come within 6 ft. (1.8 m) of the
detector by climbing on furniture,
boxes or other objects.
• Do not remove the Look Down lens mask.
• Don't aim the detector at stairways the
animal can climb on.
• Adjust the microwave range for the minimum acceptable
coverage for the room in which the detector is installed.
OK MIN MAX
NOTE: Pet avoidance is only available when using the lens
provided with the detector and the Look Down lens is
masked.