FM-105
Line Voltage • High Frequency
Occupancy Sensor
Installation Instructions
DESCRIPTION AND OPERATION
The FM-105 high frequency occupancy sensor uses ultra-
high-frequency radio waves, also known as “microwaves”
and the principle of the Doppler Effect to detect motion.
The sensor sends out radio waves that bounce off of nearby
surfaces and return to the sensor. Motion in the area
changes the speed of the waves returning to the sensor. The
sensor detects the change and interprets it as occupancy.
This causes the sensor to turn ON the load.
High freqency radio waves can penetrate certain materials,
therefore, the FM-105 can be installed behind a luminaries’
plastic or glass lens.
The FM-105 can be used in a water-tight non-metallic
box or water-tight luminaire for wet or damp location
applications.
Daylighting Control
The FM-105 also has daylighting control capability. The
daylight control on the FM-105 is a “HOLD-OFF” type. The
sensor stops the load from turning ON if the ambient light
is greater than the daylighting setpoint. If the load is already
ON, the sensor will not turn OFF the load due to high
ambient daylight.
SENSOR COVERAGE AREA
The coverage pattern may vary based on sensor location
and characteristics of surrounding material. Shield
placement, or the use of the second shield may alter the
coverage pattern.
Wall Mount
6’ (2m)
12’ (4m)
18’ (5.5m)
MAX.
20’ (6m)
MIN.
3’ (1m)
Ceiling Mount
6’ (2m)
12’ (4m)
18’ (5.5m)
MAX.
MIN.
FM-105
inside
ceiling mount
fixture
at 8’ (2.5m)
height
Call 800.879.8585 for Technical Support • www.wattstopper.com
FM-105 with shield and mounting foot
(2 shields included)
SPECIFICATIONS
Voltages .......................................... 120/277VAC, 50/60Hz
Load Requirements
@ 120VAC, 60Hz .................0-800W ballast or tungsten
@ 277VAC, 60Hz ...................................0-1200W ballast
Trimpot Adjustments
Light Level .........................................................2-200fc
Range/Sensitivity ...........................3’ to 20’ (1m to 6m)
Time Delay ...........................10 seconds to 30 minutes
Power Output ... 1 mW (similar or less than a cell phone)
Frequency .............................................................. 5.8GHz
INSTALLATION
CAUTION
TURN THE POWER OFF AT THE
CIRCUIT BREAKER BEFORE
INSTALLING THE SENSOR.
1.
Determine the mounting location inside the luminaire or other
suitable enclosure. If the daylight feature will be used, be sure
to locate the sensor where daylight is not completely obscured
from the sensor.
2. Attach a metal shield to the FM-105 so that the shield is
located between the FM-105 and the lamp. If additional
shielding is needed, attach the second optional shield to the
other side of the FM-105. Make sure that the wiring terminals
on the FM-105 are accessible.
3. Put the plastic mounting foot onto the base of the FM-105 to
secure the metal shield(s) in place.
4. Secure the FM-105 assembly in place using screws through
the plastic mounting foot.
5. Connect the line voltage and load wires to the FM-105
terminals as shown in the wiring diagram.
•
Do not allow bare wire to show.
•
Make sure all connections are secure.
6. Restore power from the circuit breaker.
