0
3 ft
30ft
0
15ft
10 ft
10 ft 20 ft 30 ft 40 ft
50 ft
0
33
°
using MB-1 with
maximum rotation
✆
Call (800) 879-8585 For Technical Support
✆
S
WIRING DIRECTIONS
≠
CAUTION
≠
TURN POWER OFF AT THE CIRCUIT BREAKER
BEFORE INSTALLING POWER PACKS OR SENSORS.
Each Watt Stopper B series power pack can supply power for up to 14 CX-105 sensors.
Each Watt Stopper A series power pack can supply power for up to 8 CX-105 sensors.
When using more sensors than this, multiple power packs are required.
REFER TO THE WIRING DIAGRAMS ON THE NEXT PAGE FOR THE FOLLOWING
PROCEDURES:
Connect the low voltage:
• RED wire (+24VDC) from power pack to RED wire on sensor.
• BLACK wire from power pack to BLACK wire on sensor (Control Return) .
• BLUE wire from power pack to BLUE wire on sensor (Control Output 24VDC).
Control Output 24VDC
+24VDC
White (Neutral)
Red (Load)
Red (Line)
White
Black
Hot
N
POWER PACK
Red
Black
Blue
Switch
Control Return
BLU
Wires
RED
BLK
Lighting
Load
White (Neutral)
Red (Load)
Red (Line)
White
Black
Hot
N
POWER PACK
Red
Black
Blue
Switch
Control Output 24VDC (BLU)
+24VDC (RED)
Lighting
Load
White (Neutral)
Red (Load)
Red (Line)
White
Black
Hot
N
POWER PACK
Red
Black
Blue
Switch
Control Return (BLK)
Control Output 24VDC (BLU)
+24VDC (RED)
Control Return (BLK)
Lighting
Load
Occupancy
Controlled
Lighting
Multiple Sensors
and Lighting
Check Our Web Site For FAQs: www.wattstopper.com
S
UNIT DESCRIPTION
The CX-105 is a 24VDC passive infrared (PIR) occupancy sensor which controls lighting
and HVAC systems based on occupancy.
PIR sensing systems are passive systems which react to changes in infrared energy (moving
body heat) within the coverage area. PIR sensors must directly “see” motion of an occupant
to detect them, so careful consideration must be given to sensor placement.
S
COVERAGE PATTERNS
Coverages shown are maximum and represent coverage for walking motion. Actual coverage
will vary slightly depending on mounting height and furnishings.
Masking the lens:
Opaque adhesive tape is supplied so that sections of the sensor’s lens
can be masked. This restricts the sensor’s view and allows you to eliminate coverage in
unwanted areas.
10ft
0
8ft
8ft
16ft
16ft
0
10 15ft
55ft
85 90ft
TOP
SIDE
Long Range Lens (-1)
up to 90 linear ft for walking motion
TOP
SIDE
One-Sided Aisleway Lens (-4)
up to 50 linear ft for walking motion
30ft
0
67ft
67ft
38ft
38ft
21ft
21ft
10ft
10ft
0
0
5ft
15ft
15ft
0
33.5ft
33.5ft
SIDE
TOP
Two-Sided Aisleway Lens (-3)
up to 134 linear ft for walking motion
SIDE
TOP
10 ft
7 ft 15 ft 25 ft
55ft
0
50
ft.
55ft.
Dense Wide Angle Lens (Standard)
up to 2000 sq ft for walking motion
up to 1000 sq ft for desktop motion
PARALLEL
to VERTICAL
at 10 foot
mounting
height
PARALLEL
to WALL
at 10 foot
mounting
height
Reference
Surface
Angle
Ceiling Mounted
Wall Mounted
fig. B
S
INSTALLATION
The CX-105 sensors can be mounted
to walls or ceilings with the supplied
swivel bracket, and the supplied junction
box cover plate if necessary (see figure C).
Mounting at fixture height is most effective.
The -3 & -4 sensors can also be mounted
to industrial fixtures by using the MB-1
industrial mount bracket.
Mounting
Ceiling:
It is best to leave approximately
six inches between the sensor and the wall so that
the Tightening Screw can be easily accessed. Orient the
Base Bracket’s Half-Circle Notch in the direction that the
sensor will point.
Wall:
Orient the Base Bracket’s Half-Circle Notch, up.
Procedures:
1. Mount the Base Bracket to the mounting surface with screws.
2. At the center of the Base Bracket, drill a hole in the ceiling or wall (unless mounting to
a junction box) large enough to thread the sensor’s wires through.
3. Guide the sensor’s wires into the Base Bracket and through the hole in the ceiling or wall.
4. Connect the sensor to the Base Bracket by angling the Post Bracket so that it is in line
with the half circle notch, as illustrated in figure A. Push the ball into the Base Bracket
opening until it snaps into place, being careful not to pinch the wires. The brackets can
be easily connected or disconnected using this orientation.
5. Insert the Tightening Screw and Nut into the Base Bracket as illustrated.
Half-Circle
Notch
Base
Bracket
Reference
Surface
Angle
Post
Bracket
Nut
fig. A
Tightening
Screw
✆
Call (800) 879-8585 For Technical Support
✆
Check Our Web Site For FAQs: www.wattstopper.com
6. Use the Reference Surface Angle to
adjust the sensor for optimum
coverage. When mounted at ten feet,
the Reference Surface Angle should
be parallel to the wall or the vertical
(see figure B). (As the mounting
height decreases, the sensor will be
tilted up slightly; as the mounting
height increases, the sensor will be
tilted down slightly).
7. Tighten the Tightening Screw.
Industrial Mount Bracket MB-1
In an industrial setting, the MB-1 can be used to
mount the CX-105-3 or CX-105-4 to a variety of
structures or fixtures, including fluorescent
fixtures.
The MB-1 features an L-shaped bracket
and sensor housing. The housing can be
positioned so that the sensor’s view is
straight down (CX-105-3), or
directioned down an aisle
(CX-105-4).
When mounting the CX-105-4
with the MB-1 bracket fully
rotated, the coverage pattern
will extend slightly behind the
sensor’s mounting position
(see, Coverage Patterns). The
chart at right can help to position
the MB-1 for the coverage desired.
Sensor Angle Adjustment
While watching the PIR sensing indicator
(red LED) for flashes, have a person walk
back and forth at the far end of the space.
Increase or decrease mounting angle as
needed until the desired coverage is
achieved.
Tighten the Tightening Screw to hold this position.
CX-100-4
MB-1
Mounting Distance
of
height
coverage behind
12'
2.5'
18'
4'
24'
5'
30'
6.5'
Junction Box
with Mud-Ring
Junction Box
Cover Plate
Ceiling
Swivel Bracket
Predrilled
Holes
Junction Box Cover Plate Installation
fig. C
