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WD Dimmable PIR Wall Switches
- Occupancy sensing dimmable wall switch
- Advanced PIR technology
- Works with Philips Lighting EcotronŽ and
AdvanceŽ Mark X" electronic dimming ballasts
- Slide dimmer adjusts light level
- Low profile, flat decorator design
- 180° coverage, maximum of 300 sq ft
- Vandal resistant, hard lens
- ASIC enhances reliability and helps to
eliminate false triggers
- UL and CUL listed; Five year warranty
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System Information
The WD sensors are decorator style, dimmable automatic wall switches. They turn lighting systems on and off based on occupancy and work with electronic dimmable ballasts to dim the lights. The sensors are designed to work with fluorescent fixtures using the Philips Lighting EcotronŽ ballasts with line voltage phase control input or AdvanceŽ Mark X" electronic dimmable ballasts as well as incandescent fixtures.
Operation
The WD sensors replace wall switches and utilize passive infrared technology to detect occupancy in a given area. Equipped with a two-level, multi-cell viewing Fresnel lens, the sensor detects the difference between the infrared energy radiated from a human body in motion and the background space..They turn lights on when the controlled space is occupied. The light level that is turned on is determined by the position of the slide dimmer. Moving the slide dimmer adjusts the lighting from a minimum of 10% to a maximum of 100%. The WD-170 and WD-180 automatically turn off once the space is vacated and the user-adjustable time delay elapses. The WD-270 and WD-280 have a dim-before-disconnect feature where once the space is vacated and the fixed 15 minute time delay elapses, lights dim to the minimum level. Then, lights turn completely off
Features
The WD sensors feature a quick and easy installation. They use a hard 1.0 mm poly IR 2 lens that is up to 5 times the thickness of comparable wall switch lenses and makes the unit extremely resistant to vandalism. The sensors utilize The Watt Stoppers ASIC (application-specific integrated circuit) technology which reduces components and provides greater reliability to users. The ASIC also incorporates Pulse Count Processing and Detection Signature Analysis which help to eliminate false triggers and provide immunity to RFI and EMI. In addition, the Zero Voltage Turn-On/Off feature disables the load by a solid-state output device while the relay opens and closes. This increases the lifetime of the relay and sensor.
Applications & Economics
The WD can be used in many spaces including private offices, small conference rooms, and copy rooms. Offices in public spaces can also use the WD because of the vandal resistant hard lens. The products flat, low-profile appearance adds to the aesthetics in any location. The combination of dimming and occupancy sensing provides a high degree of energy savings, as well as enhanced user control over the lighting environment. This will provide quick paybacks and a high rate of return on investment. In addition, the WD reduces retrofit labor costs by simplifying the installation process. WD sensors are line voltage dimmable, and do not require extra control wiring to the ballast for the dimming function.
Specifications
1.0 mm hard poly IR 2 lens
Coverage of 180 degrees, maximum 300 sq ft; 150 sq ft for desktop activity
WD-170, WD-270 operate at 120 VAC; WD-180, WD-280 operate at 277 VAC
WD-170, WD-180: time delay adjustable during installation from 30 sec up to 30 min
WD-270, WD-280: fixed initial 15 min time delay after which lights will dim to minimum
level; secondary adjustable time delay from 5 min to 30 min after which lights turn off
The Watt Stoppers ASIC technology reduces components and enhances reliability
Pulse Count Processing eliminates false offs without reducing sensitivity
Detection Signature Analysis eliminates false triggers; provides immunity to RFI and EMI
LED to indicate occupancy detection
Voltage drop protection Patented
For safety, there is no leakage to load in off mode
Zero Voltage Turn-On/Off increases life of sensor
Sensor is safety grounded
Sensor is compatible with electronic dimming ballasts with a line voltage phase control input as well as with incandescent fixtures
Small size: 2.7" x 1.8" x 2.2" (106mm x 42mm x 47mm) L x W x D
UL and CUL listed; 5 year warranty
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