Data Sheet for Product

Table Of Contents
PRODUCT DATA
OSW12-M0W
Multi-Technology Wall/Corner
Occupancy Sensor
BASIC OPERATION
Occupancy sensors have two tasks: 1) Keeping the
lights ON while the room is occupied, and 2) Saving
energy by keeping the lights OFF while the room is
unoccupied.
Passive Infrared (PIR) is an excellent and precise tech-
nology for initially turning the lights ON, but lacks
sensitivity for minor motion at distances. Ultrasonic
(U/S) technology provides maximum sensitivity with
continuous reflective high frequeny waves. This is
opitmal for keeping the lights ON.
Leviton’s OSW12 sensor combines the benefits of both
PIR and U/S technologies for unrivaled performance
and reliability.
APPLICATIONS
• Cafeterias  • Classrooms
• Conference rooms  • Computer rooms
• Day care centers  • Filing rooms 
• Offices with cubicles  • Open areas 
• Partitioned restrooms  • Storage rooms 
• Open warehouses  • Workspaces 
• Executive, private and open offices
FEATURES
Multi-Technology: By using both PIR and U/S signals,
the sensor minimizes false triggering for high reliabil-
ity.
• Flexible Base  Mounting: Supplied twist-and-lock base 
mount permits fast alignment. Supplied cover hides
mounting hardware and wires. Can be used with race-
ways for hard surface installations. Adjustable canopy
for wall or ceiling mount.
• Wide Coverage: Over 1200 sq. ft of coverage.
• Fast,  Simple  Installation:  A  single  mounting  post  and 
three color coded wires make installation easy.
• Self-Adjusting:  Internal  microprocessor  con tin u al ly 
analyzes, evaluates and adjusts sensitivity and time
delay settings. Per for mance is kept at a max i mum and
user complaints are eliminated.
• Non-Volatile  Memory:  Learned  and  adjusted  settings 
saved in protected memory are not lost during power
outages.
• 
Timer  Setting  Feature:  Automatic  –  30sec  –  30min. 
Test mode – 6sec with auto exit programming.
• Ambient  Light  Recognition:  A  Light  Sensor  prevents 
lights from turning on when the room is adequately lit
by natural light.
• Walk-Through: Provides increased energy savings by 
decreasing the time delay to 2.5min when someone
momentarily walks through the monitored space.
• Custom  off-white  color  matched  for  shaded  ceiling/
corner spaces and most common ceiling tiles.
• Uses OSPxx Series Power Pack: Uses Class 2, 24 volt 
wiring, three wire connection (low voltage). Multiple
sensors can control single or multiple power packs.
• Power base (OPB 15) available for line voltage applica-
tions
• High  Motion  Sensitivity:  The  large  lens  area  and 
multi-element lens design give excellent range and
sensitivity.
• Infrared Sensing: High sensitivity 9.8 micron detector 
dual element.
• Device:  High-impact  housing  and  in jec tion  molded 
plastic. Color coded wire leads are 6” long (16.24 cm).
• Lens:  110˚  aperture,  lens  opening  2.2”  x  1.47”, 
36  elements  (72  zones)  small  motion  range 
31 ft, large motion 68 ft
Timer Left In Test Mode - The
sensor remains in an 6 sec.
test mode.
False-On - The sensor
incorrectly turns the lights on.
False-Off - The sensor
incorrectly turns the lights off.
An installer accidentally leaves
the sensor in the 6 sec. timer
test mode and the lights may go
off or on every 6 sec.
The sensor detects movement
in the corridor or hall way and
the room lights turn on.
The sensor does not detect
movement because an
occupant sits virtually
motionless at a desk and the
lights turn off.
The sensor automatically resets the timer
to 10 min . after 15 min of test mode.
After an initial movement is sensed,
if another mov ement is not sensed within
the timer setting then the delayed off time
setting is automatically reduced.
Condition Example Self-Adaptive Reaction
If motion is sensed within a short period after
the lights go off, then the current delayed
off-time setting is increased.
HOW THE OSW12-M AUTOMATICALLY ADAPTS
Leviton Mfg. Co., Inc. Lighting & Energy Solutions
201 N. Service Rd. Melville, NY 11747-3138 Tech Line: 1-800-824-3005 Fax: 1-800-832-9538 www.leviton.com/les
© 2011 Leviton Manufacturing Co., Inc. All rights reserved. Subject to change without notice.