Bosch DS835 User manual

Installation Instructions
for the DS835 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: 9to15VDC,16mADCnominal(upto48mA
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.
• 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"legoftherelay.Tobeconnected
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:
DS835: 10.525 GHz (UL Listed)
DS835A: 10.687 GHz (Export only, not UL Listed)
DS835B: 9.9 GHz (Export only, not UL Listed)
• Coverage: 35 ft. by 35 ft. (10.7 m by 10.7 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 dead zone areas;
not recommended for installations containing pets.
• 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.
• 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/
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 whenthereisnotargetmotion.Itshouldneverbelefttooperate
with the tricolor 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 nonmetallic construction walls.
• Avoid installations where rotating machines (e.g. ceiling fans) are
normallyinoperationwithinthecoveragepattern.Pointtheunitaway
from glass exposed to the outdoors and objects that may change
temperaturerapidly.
NOTE: The PIR detector will react to objects rapidly changing
temperaturewithinitsfield-of-view.
• Eliminateinterferencefromnearbyoutsidesources.
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 ft. (1.8 to 2.4 m). Recommended
mounting height is 6.5 ft. (2 m).
• Remove the cover. Insert a flathead screwdriver into the locking tab
holeatthebottomfrontofthedetector.Pullthecoverupandforward.
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
Screwandslide the circuit board down, then out.
• Breakawaytheappropriatethin-wall wireentranceand mountinghole
coveringsinthebase.
• Usingthe baseasa templateandaligning it sothatthe detectorwillbe
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.
• Routewiringasnecessary. Route to the rear of the base and through
thewireentrance.Makesureall wiringisunpowered beforerouting.
• Securelyattachthebase to the mounting surface.
• Return the circuit board to the base and tighten the Vertical Adjust
Screw.

Page 2 © 2011 Bosch Security Systems, Inc. DS835 Series Installation Instructions
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 #22AWG (0.8 mm) wire pair between the detector and
thepowersource.
•Terminals 3 & 4: Alarm relay (reed) contactsrated 3 watts, 125 mA,
28VDCmaximum for DC resistive loads and protected by a 4.7 ohm,
½ watt resistor.
NOTE: Donotusewithcapacitive or inductive loads.
•Terminals 5 and 8: Spare.
•Terminals 6 & 7: Tamper contacts rated at 28 VDC, 125 mA.
NOTE: Plugthe wireentranceholewiththe foamplugprovided afterall
wiringconnectionshave been made.
5.0 LED Operation
The detector uses a tricolor 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/Off Pins
The ON position allows operation of the tricolor 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.
On
Off
6.2 PIR Sensitivity Selection Pins
For selection, place the plug across the pins marked STD for Standard
orINT for Intermediate mode.
INT
STD
Standard Sensitivity: The recommended setting for maximum false
alarm immunity. Tolerates environmental extremes on this setting.
Requiredsettingfor Pet Immunity.
Intermediate Sensitivity: The recommended setting for non-pet
applicationswhereanintruderisexpected to cover only a small portion
of the protected area. Tolerates normal environments on this setting.
Thissettingwillimproveyourintrudercatchperformance.
7.0 Setup and Walk Tests
Selecttheverticalstarting 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.
DS835 Range
Mounting
Height 20 ft.
(6 m) 35 ft. (10.7 m)
6.5 ft. (2 m) -9° -5°
7.0 ft. (2.3 m) -10° -6°
8.0 ft. (2.4 m) -10° -7°
NOTE: The proper vertical angle must be selected for installations
containingpets.SeeSection11.0
• PlacetheLEDplugin the ON position and replace the cover.
7.1 Establishing PIR Pattern Coverage
• TurntheMicrowave range adjust to minimum.
• Replace the cover and snap it into place. This will close the tamper
switch.
•Wait two minutes minimum afterapplying powertostartwalktests.
NOTE: During the warm-up period, the tricolor LED will flash red until
the unit has stabilized (approximately 1 to 2 minutes) and has
seen no movement for two seconds. When the tricolor LED
stopsflashing,thedetectorisreadytobetested.Withnomotion
in the protection area, the tricolor LED should be OFF. If the
LED is on, recheck the protection area for disturbances
affecting the microwave or PIR technologies.

DS835 Series Installation Instructions © 2011 Bosch Security Systems, Inc. Page 3
• Walk test across the pattern at its farthest edge, then several times
closer to the detector. Start walking from outside of the intended
protectionarea, and observe thetricolorLED.The edge of thepattern
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
lenswindowleftorright.
• Slowlybringyourarmupandintothepatterntomarkthelowerboundary
onPIR alarm. Perform this task at10 to20ft. (3 to 6 m) fromtheunit.
Repeatfrom aboveforthe upper boundary. The centerof the pattern
should not be tilted upward.
NOTE: If the desired coverage cannot be achieved, try angling the
coveragepattern up ordowntoassure the patternisnotaimed
too high or low. The angle of the PIR pattern may be vertically
positionedbetween-10°and+2°bylooseningtheVerticalAdjust
screwandsliding thecircuitboardupordown.Moving theboard
upwillangle the pattern downward.
• TightentheVerticalAdjustscrew when positioning iscompleted.
7.2 Establishing Microwave Coverage
NOTE: It is important to wait one minute after removing/replacing the
coversothemicrowaveportion of the detector can settle, and
towaitatleast ten seconds between the following walk testing
procedures.
• ThetricolorLEDshouldbe OFF before walk testing.
• Walktest across the patternat the intendedcoverage’sfarthest end.
Start walking from outside the intended protection area and observe
thetricolorLED.Theedgeofthe microwave pattern is determined by
the first yellow, microwave activation of the LED (or the first red
activationifthegreenPIRLEDactivatesfirst).
• Ifadequate rangecannot bereached,increase theMicrowaveRange
Adjust slightly. Continue walk testing (waiting one minute after
removing/replacingthecover)and adjustingthe rangeuntilthefarthest
edgeofdesiredcoverage has been accurately placed.
NOTE: Donot adjustthe microwaverangehigher thanrequired. Doing
so will enable the detector to catch movement outside of the
intendedcoverage pattern.
• Walk test the unit from all directions to determine all the Microwave
patternboundaries. Waitat least tensecondsbetween walk tests.
7.3 Establishing Detector Coverage
• ThetricolorLEDshouldbe 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 tricolor 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 tricolor LED will flash red four 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
TheprotectedcoverageareaiswherethemicrowaveandPIR 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
blackonthe Coverage Pattern drawings.
0
0
MLK
Q
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ZXTP
ABC
N
R
VWSO
D
E
F
G
H
I
0
5
5
05
10
15
20 10 15 20Feet 25 30 35
10
15
20 1.6
Meters 3.2 4.8 6.4 89.6
11.25.6
4.2
2.8
1.4
1.4
2.8
4.2
5.6
TOP VIEW
0
0
2
-5°
A-M
N-Q
R-U
V-Y
Z
005
Remove masking for Look Down Zone.
3
1.6 3.2 4.8
Meters
SIDE VIEW 6.4 8 9.6 11.2
10
6½
Feet 10 15 20 25 30 35

1/11
DS835 Series Installation Instructions
P/N: F01U068627-12 Page 4
© 2011 Bosch Security Systems, Inc.
130 Perinton Parkway, Fairport, New York 14450
www.boschsecurity.com
10.1 Pattern Masking
The PIR coverage pattern may be masked using masking tape or
electricaltapeon the inside of thelens.Alwayswalktestforthe desired
coverage after masking.
Grooved side of
DS835 Lens
A BCDEFGH I JKLM
VNRWSOZPT
XUQ Y
NOTE: Masking only eliminates the PIR portion of the coverage and
hasnoeffecton the microwave pattern.
11.0 Special Instructions for Installations
Containing Pets
The DS835 will provide reasonable protection from nuisance alarms
causedbythefollowingsources:
• One dog up to 100 Lbs. (45 kg)
• Two dogs up to 60 Lbs. each (27 kg each)
• Up to 10 cats
• Multiplesmallrodents, such as rats
• Randomflyingbirds
To takefulladvantageofthe DS835'sSignatureRecognitionTechnology,
thefollowing guidelines should befollowed:
• Mountthedetector6.5ft.(2m)high and adjust the PIR angle to -5°.
6.5 ft.
(2 m)
• SetthePIRsensitivityforStandard(STD).
INT
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.