Bosch DS940 User manual

DS940/DS940T
Passive Infrared Detector
Installation Instructions
1.0 Description
The DS940 is a high performance Passive Infrared (PIR) Motion Sensor which uses advanced signal processing to provide outstanding
catch performance and unsurpassed false alarm immunity. It is designed to detect movement in the interior of a structure by sensing the
Infrared energy emitted from the human body as it moves across the sensor’s field of view. When motion is detected the unit sends an alarm
signal to the control panel.
2.0 Specifications
•Input Power: 9-15 volts DC
•Current Draw: 17 mA @ 12 VDC (standby and maximum)
•Standby Power: Nointernalstandbybattery. For ULListedProd-
uct Installations, 4 hours (68 mAh) standby
power must be provided by the control unit or
by a Listed burglary power supply.
•Relay Form “A” Normally Closed (NC) contact set
rated for 125 mA@ 28 volts maximum DC, 18
volts maximum AC for resistive loads.
•Tamper: (DS940T only) NormallyClosed(withcoveron).
Contacts rated at 28 VDC, 125 mA max. Con-
nect tamper circuit to a 24hr. protection circuit.
•Temperature: -20° to +120°F (-29° to +49°C).
For UL Listed installations, the temperature
range is +32°F to +120°F (0°C to +49°C).
•Humidity: 0 - 85% non-condensing.
•Dimensions: 3 in. x 2.25 in. x 1.5 in. (HxWxD)
(7.6 cm x 5.7 cm x 3.8 cm)
•Options: B335 Swivel Mounting Bracket. Use of this
bracket may decrease the PIR range and in-
crease dead zones.
• 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/
.
3.0 Installation
3.1 Remove the cover using a
smallflat-bladescrewdriver.
3.2 Press the vertical adjust
tab toward the side of the
case and lift out the board.
3.3.
3.3.
3.4 Avoid.
3.3 Select a mounting location.
Mount the sensor where an
intruder will most likely cross
throughthecoverage pattern.
Bottom of Detector
Insert screwdriver here or here
LED
ON
7.5-9ft
3.3.
3.3.
3.5 Position the detector at the correct height.
7.5 - 9 ft.
(2.25 - 2.7 m)
Mount the detector 7.5 - 9 feet
(2.25 - 2.7 meters) above the floor
Moving Objects
Pets
Heat
Sources
Windows
and
Uninsulated
Walls
Air
Conditioning
Outlets
Direct Hot or
Cold
Drafts
Mounting
Outdoors
Direct Sunlight

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DDS940/DS940T Installation Instructions
P/N: F01U035117-08 Page 2
© 2011 Bosch Security Systems, Inc.
130 Perinton Parkway, Fairport, New York 14450
www.boschsecurity.com
3.10 If look-down is desired, peel away the look-down
mask. Do not remove the clear plastic lens.
5.0 Coverage Patterns
3.9 Select LED Operation
3.8 Wire the Detector.3.7 Install the board into the case.
Be sure the vertical adjust tab
aligns with the correct mounting
height.
4.0 Walk test the detector. This test should
beperformed at thetime of installationand
annuallythereafter.
Thisdetectorcontainsanenvironmental
stabilization circuit which requires
approximately 2 minutes after initial
power-up to warm up. During this time
the detector will not respond to any
movement.
Please wait 2 minutes after initial power-
up to perform any walk tests.
3.6 Mount the unit, using the appropriate
mountingholes.
LED
ON
7.5-9ft
7.5-9ft
OFF
ON
LED
ON
7.5-9ft
ON
Peel away
the mask
LED
ON
7.5-9ft
LED
ON
+
-
9-15
VDC Alarm
Contacts Tamper
Contacts
Normally Closed (NC) contacts
(DS940T
only)
Note:To avoid possible
circuit board
damage, use
only the
mounting
hardware
provided in the
appropriate
punch-out
mounting holes.
Corner Mount
Surface
Mount
Thinwall knockouts
for wiring
Don't overtighten the mounting screws
Cover may not attach correctly
Remove
Areas
if using the
B335 Bracket
Althoughgenerallynot required,if
maskingis desired,the lensdiagram
showsthe appropriate areasto be
masked(see shaded areaon the
DS940lens diagram).Usean
opaquematerial (suchas, electrical
tape)to mask thedesired areas.
1 234567891011
12 22
23 33
34 44
45 55
56 66
67 77
DS940 Lens
(inside view)
0
40
10
20
20
10
010
20
30
0
012
6
6
Meters
Feet
123
4
5
6
7
8
9
10
11
40
30
2010
0
0
0
10 123
0
7.5
Feet
Meters
Look
Down
67-
77 56-
66 45-
55 34-
44 23-
33 12-
22 1-
11