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WATTSTOPPER
SENSORS
Description
The DW-311 dual technology dimming wall switch sensor can
turn lights OFF and ON based on occupancy and allow the user
to increase or decrease the lighting level. It combines the bene-
fits of passive infrared (PIR) and ultrasonic occupancy detection
technologies and works with 0-10 VDC dimming drivers and
ballasts to control lighting loads including LEDs.
Operation
The DW-311 installs in a single gang junction box. Factory
default operation is for Manual-ON, so that users turn lights
on only when needed. Once the space is vacated and the time
delay elapses, lights automatically turn OFF. DIP switch settings
enable a variety of control options such as Auto-ON operation,
high and low trim, ramp up and fade down times, power
loss mode, smart light level, walk-through and test modes.
Additonal DIP switch settings allow the user to choose which
sensing technologies turn ON, hold ON or retrigger the lighting.
Partial-ON Option
When set for Automatic-ON operation, the DW-311 typically
comes ON to the last non-zero light level for occupant comfort
and convenience. However, this default setting may be changed
to a fixed light level value of 50%, 75% or 100%. The dimmed
level options (Preset On Level) support new state and federal
energy code requirements.
Applications
This dual technology sensor has the flexibility to work in a
variety of applications including spaces that benefit from
enhanced small motion detection. Common applications include
small and executive offices, small and medium conference
rooms and lunch/break rooms. Multiple DW-311 sensors may
be used to control a lighting load in spaces with up to four
switch locations; each device provides fully functional dimming
control. When additional sensors are used for multi-way
control, each connected sensor expands the coverage area.
DUAL TECHNOLOGY 010 VOLT DIMMING WALL SWITCH
OCCUPANCY SENSOR
DW311
Defaults to Manual-ON operation for
maximum energy savings
Supports Partial-ON operation for energy
code compliance or incentives
Allows fully functional multi-way control
from up to four switch locations
High sensitivity and dense coverage for
exceptional performance
120/277VAC and 347VAC models
Color-matched lens and
low profile for appealing design
OCCUPANCY AND VACANCY
• Vandal resistant lens combines precise coverage with
durability
• Presentation mode may be deactivated to allow Auto-ON
operation after 15 second time delay for spaces with tran-
sient occupancy
• Optional smart light level adapts ambient light hold off
threshold to meet user needs
• Selectable walk-through mode turns lights off three minutes
after the room is initially occupied if no motion is detected
after the first 30 seconds
• Test mode allows quick and easy verification of coverage
• Selectable audible and/or visual alerts for impending shutoff
• LED indicates occupancy detection
• Service mode allows sensor to operate as a service switch in
the unlikely event of a failure
• Zero-crossing for long relay life
• No derating required for multi-gang applications
• Sensor coverage tested to NEMA Guide Publication WD 7-2000
• Compatible with decorator wall plates
• This product meets the material restrictions of RoHS
Features
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