Wattstopper

®

Line Voltage • High Frequency Occupancy Sensor

Installation Instructions • Instructions d’Installation • Instrucciones de Instalación

No: 24590 – 08/16 rev. 1

Catalog Number • Numéro de Catalogue • Número de Catálogo: FM-105

Country of Origin: Made in China • Pays d’origine: Fabriqué en Chine • País de origen: Hecho en China

SPECIFICATIONS

Voltages ..........................................120/277VAC, 50/60Hz

Time Delay ....................... 10 seconds to 30 minutes

Power Output ..... 1 mW (similar or less than a cell phone)

Frequency ............................................................. 5.8GHz

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

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.

6’ (2m)

(5.5m)

18’ (5.5m)

MAX.

MIN.

FM-105

inside

fixture

at 8’ (2.5m)

height

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 for use

with a single shield. Only 2 mounting positions can be used with

the 2 shields.

Mounting Foot

Align 4 corner studs on the bottom of the FM-105 with 4 corner

slots on mounting foot. Twist to secure.

FM-105

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

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.

Range/Sensitivity

It is possible for a high frequency 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

into the sensor’s view. The lights should turn ON.

Lights do not turn ON:

Lights do not turn OFF:

FCC NOTICE

FCC ID: Q4BFM105

800.879.8585

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Wattstopper 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 Wattstopper for

ne peut être tenu responsable de tout dommage

Wattstopper garantiza que sus productos

están libres de defectos en materiales y mano

de obra por un período de cinco (5) años. No

existen obligaciones ni responsabilidades por