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
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.
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.
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 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.
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 tricolor 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 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
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
M
L
K
Q
U
Y
J
Z
X
T
P
A
B
C
N
R
V
W
S
O
D
E
F
G
H
I
0
5
5
0
5
10
15
20
10
15
20
Feet
25
30
35
10
15
20
1.6
Meters
3.2
4.8
6.4
8
9.6
11.2
5.6
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
0
0
5
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
