6.0
Coverage Patterns
Although generally not required, masking may
be desired to eliminate potential false alarm
sources by blocking individual zones (1 through
77 in the zone pattern), or to customize the
detection area.
The appropriate lens areas to be masked can
be derived from the lens diagram. For example,
covering the shaded area in the lens diagram
would block zones 5, 16, 27, 38, 49, 60, and 71
(i.e., one group of vertically layered zones).
Use an opaque material such as electrical tape
for masking.
Step 7.
Select the Wall Tamper Jumper.
Step 8.
Snap the board into the clip
so the
notch aligns with the tab on the clip.
Step 9.
Remove the pull tab
to energize the
detector.
5.0
Look-Down Zone
For non-pet applications only.
If look-down is desired, peel away the mask to enable
the Look-Down Zone.
Do not remove the clear
plastic lens.
Step 6.
If the wall tamper is used:
a. Remove the wall tamper knockout as
shown in Step 5.
b. Using the detector base as a guide, drill a 4.8 mm
(3/16 in.) hole into the wall.
c. Insert the wall anchor into the hole and tap gently
into place. Then place the rivet into the anchor and
tap into place.
d. When mounting the base, make
sure the rivet protrudes through
the correct hole.
e. When mounting the circuit board,
the rivet must be over the Tamper
Switch Arm.
Zone Pattern
(top view)
Zone Pattern
(side view)
Meters
34-44
23-33
12-22
1-11
0
3
0
10
0
12
Look-Down
67-77 45-55
56-66
Feet
Meters
0
40
0
0
12
6
6
1
2
3
4
5
6
7
8
9
10
11
20
20
0
Look-
Down
Lens Diagram
(inside view)
1 2 3 4 5 6 7 8 91011
12
22
23
33
34
44
45
55
56
66
67
77
Rivet
Switch Arm
Tamper
Switch
Pull
Tab
Locking
Tab
No Jumpers
Wall Tamper
Enabled
Wall Tamper
Disabled
4.8 mm
(3/16 in.) hole
Wall Anchor
Tap Wall Anchor
in place with
hammer.
Wall Anchor
Rivet
Tap Rivet
in place with
hammer.
4.0
Walk Test
Perform the Walk Test at the time of installation and annually thereafter.
a. Remove and replace the detector cover to enable the LED and place the detector in Walk Test
Mode for 90 seconds. If motion is detected, the detector remains in Walk Test Mode until a
90-second quiet period (no motion detected) occurs.
b. Walk test
across
the coverage pattern as shown in the diagram.
The edge of the coverage is determined by activation of the LED.
c. Walk test the unit from both directions to determine the boundaries.
d. If the desired range
cannot
be achieved, make sure the board is properly
positioned on the baseplate. Try angling the unit up or down when using
the optional swivel mount.
The RF940U infrared detector contains an environmental stabilization circuit
that requires approximately 3 minutes after initial power-up to warm up.
During this time, the detector LED blinks once per second and the detector
does not respond to any movement. After warm up, the detector must not see any movement for 2
seconds to complete stabilization. Rapid LED flash indicates Walk Test Mode is about to end unless
an alarm occurs.
3/11
RF940U Installation Instructions
P/N: F01U070611-07 Page 2
© 2011 Bosch Security Systems, Inc.
130 Perinton Parkway, Fairport, New York 14450
www.boschsecurity.com
