To set up the detector
1. Mount the cover.
2. Insert the tamper screw, if desired.
3. Apply power to the unit.
4. Wait for approximately two minutes with no
motion in the monitoring area, then begin
walk testing across the pattern below.
5. Walk test the detector from both directions.
The boundaries are determined by activation
of the LED.
6. If the desired range is not achieved, angle
the mirror up or down to assure the monitor-
ing pattern is not aimed too high or too low.
7. If required, install the security seal (P/N
3.102.389.687) between the base and cover
beside the cover locking screw.
Monitoring Patterns
Wide-angle monitoring
–
Use wide-angle monitoring to overlap monit-
oring areas when using more than one de-
tector.
–
Vertical swivel range of the mirror: +2° to
-16°
A B C D E F G H I
J K L M N
O P Q
11
0
0
0
5.5
5.5
5.5
5.5
11
B
A
D
C
E
G
F
H
I
J
K
L
M
N
P
Q
O
0
Q
0
3
2
11
11
0
0
O-
J- N
A - I
Mirror segment to
pattern reference
Top
view
Side
view
(-6°)
Curtain Monitoring
–
Use curtain monitoring by installing the
OMLR93-3 long-range mirror in the detector.
–
Vertical swivel range of the mirror: +7° to
-16°
A
B
C D E
0
1.5
2
21
1.5
0
21
0
0
3
0
21
21
0
0
0
1.5
1.5
A
E
D
C
B
Mirror segment to
pattern reference
Top
view
Side
view
(-3°)
Maintenance
–
Check the range and monitoring area with a
walk test at least once a year.
–
Instruct the end user to check the detector
daily by walking through the outer edge of
the monitoring area and observing the LED
operation (if used). This assures an alarm
output prior to arming.
Technical data
Electrical
Maximum operating voltage in VDC
33
Maximum current consumption in mA 0.8
Mechanical
Dimension in cm (H x W x D)
11 x 6.9 x 4.5
Monitoring area in m
–
Wide-angle mirror
11 x 11
–
Curtain mirror
21 x 3
Minimum installation height in
m
2
Maximum installation height in
m
2.6
Rates of movement in m/s
–
Wide-angle mirror
0.2 - 3.0
–
Curtain mirror
0.2 - 4.0
Sensitivity setting
Standard or
high sensitivity
Environmental
Minimum operating temperature in °C -10
Maximum operating temperature in
°C
55
Minimum storage temperature in °C
-20
Maximum storage temperature in °C
60
Maximum relative humidity in %
95; no
dew
point
Protection class
IP41 /
IK02
Environmental class
II
9 |
10 |
11 |
12 |
13 |
14 |
DS 935 LSN Infrared Motion Detector
en
Installation Manual
Bosch Sicherheitssysteme GmbH
Robert-Bosch-Ring 5
85630 Grasbrunn
Germany
www.boschsecurity.com
© Bosch Sicherheitssysteme GmbH, 2015
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