LEGRAND Wattstopper WT-605 Manual

No: 24221 – 1/17 rev. 1
Catalog Numbers • Les Numéros de Catalogue • Números de Catálogo: WT-605, WT-1105, WT-2205, WT-2255
Country of Origin: Made in China • Pays d'origine: Fabriqué en Chine • País de origen: Hecho en China
The WT-series Wattstopper ultrasonic occupancy sensors operate on 24VDC and automati cally turn lighting systems on and off
based on occupancy. The sensors use Doppler technology to sense occupancy. They broadcast high frequency sound waves into the
controlled area. Movement in the area will cause the sound waves to return to the sensor at a faster or slower rate resulting in a doppler
shift and occupancy detection. When the ultrasonic sensor detects occupancy, it switches lighting on through a Wattstopper Power or
Auxiliary Power Pack.
Placement of ultrasonic sensors is critical for proper operation. It is best
to place the sensor so that it has a clear view of all desktops and work
surfaces within the coverage area. Orientation of the sensor is also
important. The WT-605 offers 360° one-sided coverage while the WT-
1105, WT-2205, and WT-2255 provide 360° two-sided coverage.
Transducers (the two or four small round openings on the cover of the
sensor) operate in pairs (see the Coverage Patterns graphic), and the
centerline of the pair must be oriented correctly for proper coverage.
You should take the following into account when mounting sensors:
• The transducer pairs orientation determines the coverage pattern.
• Sensors should not be mounted so that transducers point
toward a wall that is within 4 feet of the sensor.
• Ultrasonic sensors may false trigger when exposed to high
volumes of air flow. Sensors should be installed at least 4 feet
from supply ducts and a minimum of 6 feet from horizontal
discharge ducts.
• Do not mount sensors within 6 inches of a power pack.
• Always mount the sensor on a rigid vibration free surface.
• When mounting multiple sensors in a large room, do not mount
the sensors within 10 feet of each other.
• Mounting above 12 ft. or in areas of open ceiling heights of
more than 12 ft will reduce overall coverage.
OPEN OFFICE SENSOR PLACEMENT
A typical layout for an open office space is to place the ultrasonic
sensors so they control the office area in zones that overlap. A 20%
coverage overlap is recommended.
Wattstopper
Ultrasonic Occupancy Sensors
Installation Instructions • Instructions d'Installation • Instrucciones de Instalación
UNIT DESCRIPTION
UNIT PLACEMENT
®
SPECIFICATIONS
Voltage ......................................................................24VDC
Current Consumption:
WT-605 ...............................................................27mA Max.*
WT-1105, 2205 & 2255 .......................................30mA Max.*
Maximum Output Current ........................................... 100mA
Ultrasonic Frequency .................................................. 32kHz
Time Delay Adjustment ....................15 seconds-30 minutes
Sensitivity Adjustment ........................ Trimpot (min. to max.)
*Current consumption can be slightly higher when only one
sensor per power pack is used.
Coverage Patterns
Coverage Overlap
(WT-2205 shown)