Page 6 © 2004 Bosch Security Systems DS160/161 Installation Instructions
7.2 Masking
The DS160/161 is supplied with three masking wedges used to
disable any part of the coverage pattern. Each wedge covers
approximately 25% of the coverage pattern.
Masking
wedge
Masking
wedge
Masking
wedge
Masking
wedge
Masking
wedge
Insert a masking wedge by placing the bottom peg in first. Then
press on the center of the wedge until it snaps into place.
Select a section of the lens to mask
Insert the tab on the end of the wedge
in the hole in one side of the lens
Textured side
facing out
Press here to snap
into place
Remove a wedge by placing the tip of a small screwdriver behind the
wedge and prying it up. Do not scratch the lens when removing the
wedge.
Insert screwdriver behind wedge
Pry up to remove
7.0 Coverage Patterns
The coverage (detection area) of the DS160/161 varies depending
on the mounting height above the floor, angle of the lens, and if the
unit is mounted on a wall above the door or on the ceiling.
The unit can also be masked to allow only some parts of the coverage
pattern to be active.
7.1 Examples
When the unit is mounted on the wall and the lens is pointed straight
down, some detection zones point toward the wall and do not detect
movement.
Views of coverage pattern with the unit mounted at 7.5 ft.
(2.3 m) above the floor with the "eye" pointed straight down.
Zones that are pointed toward the wall are not shown.
Mounted on
wall above door
Mounted on ceiling 2.5 ft.
(.75 m) in front of the door
Front View
ALARM WILL
SOUND WHEN
DOOR IS
OPENED
4 ft.
(1.2 m)
ALARM WILL
SOUND WHEN
DOOR IS
OPENED
10 ft.
(3 m)
Pattern on Floor
2.5 ft.
(.75 m)
5 ft.
(1.5 m)
Side View
The higher the unit is mounted, the larger the coverage area. Do not
mount the DS160/161 more than 15 ft. (4.6 m) above the floor.
Side view of coverage pattern with the unit mounted at 15 ft.
(4.6 m) above the floor with the "eye" pointed straight down
5 ft.
(1.5 m)
10 ft.
(3 m)
Mounted on
wall above door
Mounted
on ceiling
When the DS160/161 is mounted on the wall above the door, you can
move the coverage pattern away from the wall by rotating the detector’s
lens.
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