background image

WIRING

10

sec

30 min

3’

20’

1

200

Time Delay

Light Level
(footcandles)

Range (feet)

3

12

20

LOAD

NEUT

LINE

Plastic mounting foot

Lighting

Load

Metal
shield

Hot/Line

Neutral

FM-105

Microwave

 (5.8 GHz)

Occupancy Sensor

120/277VAC, 50/60 Hz 

@120VAC: 0-800W Ballast

or Tungsten

@277VAC: 0-1200W Ballast

FCC ID: Q4BFM105

APPLIANCE

CONTROL

88T9

MOUNTING OPTIONS

Position metal shield between the FM-105 and lamp.

FM-105

Microwave

 (5.8 GHz)

Occupancy Sensor

100-277VAC, 50/60 Hz 

@120VAC: 0-600W Ballast,

0-600W Tungsten,

1/6 hp

@277VAC: 0-1000W Ballast,

1/4 hp

FCC ID: Q4BFM105

10

sec

30 min

3’

20’

1

200

Time Delay

Light Level
(footcandles)

Range (feet)

3

12

20

LOAD

NEUT

LINE

FM-105

Microwave

 (5.8 GHz)

Occupancy Sensor

120/277VAC, 50/60 Hz 

@120VAC: 0-800W Ballast

or Tungsten

@277VAC: 0-1200W Ballast

FCC ID: Q4BFM105

APPLIANCE
CONTROL

88T9

Bottom of FM-105:

 Align studs on the 

bottom of the FM-105 with the holes on 
the metal shield flanges. Do not block 
wiring terminals on the FM-105 with the 
shield. 

The mounting foot provides 4 different 
mounting positions. 

 

FM-105

Microwave

 (5.8 GHz)

Occupancy Sensor

100-277VAC, 50/60 Hz 

@120VAC: 0-600W Ballast,

0-600W Tungsten,

1/6 hp

@277VAC: 0-1000W Ballast,

1/4 hp

FCC ID: Q4BFM105

FM-105

Microwave

 (5.8 GHz)

Occupancy Sensor

100-277VAC, 50/60 Hz 

@120VAC: 0-600W Ballast,

0-600W Tungsten,

1/6 hp

@277VAC: 0-1000W Ballast,

1/4 hp

FCC ID: Q4BFM105

FM-105

Microwave

 (5.8 GHz)

Occupancy Sensor

100-277VAC, 50/60 Hz 

@120VAC: 0-600W Ballast,

0-600W Tungsten,

1/6 hp

@277VAC: 0-1000W Ballast,

1/4 hp

FCC ID: Q4BFM105

FM-105

Microwave

 (5.8 GHz)

Occupancy Sensor

100-277VAC, 50/60 Hz 

@120VAC: 0-600W Ballast,

0-600W Tungsten,

1/6 hp

@277VAC: 0-1000W Ballast,

1/4 hp

FCC ID: Q4BFM105

10

sec

30 min

3’

20’

1

200

Time Delay

Light Level
(footcandles)

Range (feet)

3

12

20

LOAD

NEUT

LINE

FM-105

Microwave

 (5.8 GHz)

Occupancy Sensor

120/277VAC, 50/60 Hz 

@120VAC: 0-800W Ballast

or Tungsten

@277VAC: 0-1200W Ballast

FCC ID: Q4BFM105

APPLIANCE
CONTROL

88T9

10

sec

30 min

3’

20’

1

200

Time Delay

Light Level
(footcandles)

Range (feet)

3

12

20

LOAD

NEUT

LINE

FM-105

Microwave

 (5.8 GHz)

Occupancy Sensor

120/277VAC, 50/60 Hz 

@120VAC: 0-800W Ballast

or Tungsten

@277VAC: 0-1200W Ballast

FCC ID: Q4BFM105

APPLIANCE
CONTROL

88T9

10

sec

30 min

3’

20’

1

200

Time Delay

Light Level
(footcandles)

Range (feet)

3

12

20

LOAD

NEUT

LINE

FM-105

Microwave

 (5.8 GHz)

Occupancy Sensor

120/277VAC, 50/60 Hz 

@120VAC: 0-800W Ballast

or Tungsten

@277VAC: 0-1200W Ballast

FCC ID: Q4BFM105

APPLIANCE
CONTROL

88T9

10

sec

30 min

3’

20’

1

200

Time Delay

Light Level
(footcandles)

Range (feet)

3

12

20

LOAD

NEUT

LINE

FM-105

Microwave

 (5.8 GHz)

Occupancy Sensor

120/277VAC, 50/60 Hz 

@120VAC: 0-800W Ballast

or Tungsten

@277VAC: 0-1200W Ballast

FCC ID: Q4BFM105

APPLIANCE
CONTROL

88T9

Mounting foot:

 Align 4 corner studs on the bottom of the 

FM-105 with 4 corner slots on mounting foot. Twist to secure.

ADJUSTMENTS

Three trimpots on the FM-105 allow you to 
adjust the time delay, sensitivity/range, and 
light level setpoint. To reduce a setting, turn 
the associated trimpot counter-clockwise 
toward the minimum setting. To increase a 
setting, turn the trimpot clockwise toward 
the maximum setting.

Warning: Do not overturn the adjustment trimpots!

Time Delay  

The FM-105 automatically turns OFF the load after the coverage 
area has been vacant for the amount of time set in the time delay. 
The minimum setting is 10 seconds, maximum is 30 minutes.

Call 800.879.8585 for Technical Support • www.wattstopper.com

Range/Sensitivity   

It is possible for a microwave sensor to “see” through solid 
objects and detect motion if the sensitivity is set too high. If you 
are getting detections and the load will not turn OFF, reduce the 
sensitivity slightly and see if that corrects the situation.

Light Level  

Adjust the daylighting setpoint when ambient light is sufficient 
to keep the lights OFF. Set the time delay to minimum. Adjust 
the light level trimpot in small increments. Wait 1 to 2 minutes 
between adjustments. After the time delay expires and the load 
turns OFF, move within the detection area of the sensor. If the 
load comes back ON, you need to repeat the procedure.

IMPORTANT START-UP INFORMATION

The first time the sensor is powered-up the load will flash ON 
then OFF once, then there will be 10 seconds while the sensor 
warms-up. After that time the sensor will work normally.

TROUBLESHOOTING

To quickly test the unit, turn the time delay to minimum. Move 
out of the sensor’s view. Lights should turn OFF after 10 seconds. 
Move into the sensor’s view. The lights should turn ON.

Lights do not turn ON:

1. Cover the sensor to simulate darkness then move in the 

coverage area. If the load turns ON, adjust the light level. 

2. Check all wire connections. Verify all wires are secure.

Lights do not turn OFF:

1. If there is no motion in the desired coverage area, the 

sensor may be picking up movement on the other side of 
a wall, partition, window or door. Reduce the sensitivity.

2. Verify time delay and that there is no movement 

within the sensor’s view for that time period.

FCC NOTICE 

FCC ID: Q4BFM105

This device complies with part 15 of the FCC Rules. Operation 
is subject to the following two conditions: (1) This device may 
not cause harmful interference, and (2) this device must accept 
any interference received, including interference that may cause 
undesired operation.

Caution:  Any changes or modifications to this device not 
explicitly approved by Watt Stopper/Legrand could void your 
authority to operate this equipment.

OR

WARRANTY INFORMATION

Watt Stopper/Legrand warranties its products to be free of 
defects in materials and workmanship for a period of five (5) 
years. There are no obligations or liabilities on the part of Watt 
Stopper/Legrand for consequential damages arising out of, or in 
connection with, the use or performance of this product or other 
indirect damages with respect to loss of property, revenue or 
profit, or cost of removal, installation or reinstallation.

2800 De La Cruz Boulevard, Santa Clara, CA 95050

08745r1  3/2008

Please 

Recycle

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