Technical Data
Effective January 20, 2015
OAC-U – MicroSet Ultrasonic
Line Voltage Ceiling Sensor
Catalog#
Prepared by
Project
Date
Comments
Type
Overview
The MicroSet Ultrasonic Line Voltage Occupancy Sensing Ceiling
Sensor is a motion lighting control that is used for energy savings
and convenience.
Features
MicroSet self-adjusting time delay and sensitivity
Built-in light level sensor
Units available for control of single or two separate loads
Products tested to NEMA WD 7 - 2011 Occupancy Motion
Sensors Standard
Ultrasonic
Activated
MicroSet
Self-Adjusting
Technical Data
January 2015
OAC-U – MicroSet Ultrasonic Line Voltage Ceiling Sensor


Specifications
Technology
Power
Requirements
Time Delays
Coverage
Light Level
Sensing
(-R Models)
Operating
Environment
Housing
Size
Mounting
LED Indicators
Standards
2
Ultrasonic (US)
120 to 347 VAC, 50/60 Hz - Neutral Required
120 VAC
Incandescent/Tungsten - 0 to 800W, 50/60 Hz
Fluorescent/Ballast - 0 to 1200W, 50/60 Hz
Motor Load: ¼ HP @ 125 VAC
230 VAC
Fluorescent/Ballast - 0 to 1200W, 50/60 Hz
277 VAC
Fluorescent/Ballast - 0 to 2700W, 50/60 Hz
347 VAC
Fluorescent/Ballast - 0 to 1500W, 50/60 Hz
Self-adjustable, 15 seconds/test (10 minutes Auto),
or Selectable 5, 15, 30 minutes
2000 sq. ft.
0 to 300 foot-candles
Description/Operation
The ultrasonic sensor uses the Doppler principle. It produces a low
intensity, inaudible sound and detects changes in sound waves
caused by motion, such as walking into the room, reaching for a
telephone, or turning in a chair. They are volumetric in nature and
therefore not line-of-sight dependant. Since they fill the space with
these sound waves, they are excellent in bathrooms with stalls,
enclosed hallways, or other oddly shaped rooms. In addition, they
are much more sensitive to smaller motions. The sensor includes
self-adaptive technology that continuously self-adjusts sensitivity and
Time Delay in real-time, maximizing the potential energy savings that
are available in the particular application. The MicroSet Ultrasonic
Line Voltage Ceiling Sensor has an ambient light level sensor. When
enabled, the daylighting feature prevents lights from turning ON
when the room is adequately illuminated by natural light.
Applications
Conference Rooms
Open Office Spaces
Restrooms (With Partitions)
Temperature: 32°F - 104°F (0°C - 40°C)
Relative humidity: 20% to 90%, non-condensing
For indoor use only
Durable, injection molded housing. Polycarbonate
resin complies with UL 94V-0
1.42”H x 4.5”W (36.068mm x 114.3mm)
Mounts directly to ceiling tile, to a 4” square box
and round mud ring or to 4” octagon box
Green LED for Ultrasonic detection
FCC Compliant
cULus Listed
RoHS Compliant
www.coopercontrol.com
Restrooms (Non Partitioned)
Hallways
Other Indoor Office Spaces
Technical Data
OAC-U – MicroSet Ultrasonic Line Voltage Ceiling Sensor


January 2015
Wiring Diagrams
Single Relay
Dual Relay
AUTOMATIC MODE OPERATION:
1. WHEN SENSOR ACTIVATES LOAD
TURNS ON.
AUTOMATIC MODE OPERATION:
120-347 VAC
1. WHEN SENSOR ACTIVATES, BOTH
LOADS TURN ON.
LINE
NEUTRAL
2. LOAD TURNS OFF WHEN SENSOR
TIMES OUT.
2. LOADS TURN OFF WHEN SENSOR
TIMES OUT.
120-347 VAC
LINE
NEUTRAL
LOAD "A"
LOAD
LOAD "B"
BLACK
BLACK
BLUE
BLUE
WHITE
WHITE
RED
RED
RED LEADS ARE NON-POLARITY SENSITIVE.
Coverage
OAC-U-2000 (-MV/-DMV)
2,000 sq. ft.
20 ft
(6.096m)
16 ft
(4.87 m)
12 ft
(3.65 m)
0
12 ft
(3.65 m)
16 ft
(4.87 m)
20 ft
(6.096m)
32 ft
(9.75 m)
23 ft
15 ft
(7.01 m) (4.57 m)
10 ft
(3 m)
5 ft
(1.52 m)
0
5 ft
(1.52 m)
10 ft
(3 m)
23 ft
15 ft
(4.57 m) (7.01 m)
32 ft
(9.75 m)
Maximum coverage area may
vary somewhat according to room
shape and the presence of obstacles.
Minor Motion, Ultrasonic
Major Motion, Ultrasonic
Recommended Mounting Height: 8 to 12 feet
OAC-U-2000-R and OAC-U-1000-R Hallway Coverage
4 ft
(1.22 m)
0
4 ft
(1.22 m)
32 ft
(9.75 m)
28 ft
(8.53 m)
23 ft
(7.01 m)
15 ft
(4.57 m)
10 ft
(3 m)
5 ft
(1.52 m)
0
5 ft
(1.52 m)
10 ft
(3 m)
15 ft
(4.57 m)
23 ft
(7.01 m)
32 ft
28 ft
(8.53 m) (9.75 m)
* When creating a sensor coverage layout in a cubicle space, best practice is the
use the minor motion coverage pattern as maximum coverage area. Results may
vary based on cubicle height and ceiling height. (Cubicle wall height should not
exceed 71 inches).
www.coopercontrol.com
3
Technical Data
OAC-U – MicroSet Ultrasonic Line Voltage Ceiling Sensor


January 2015
Controls
Not Used
3
LEDs
Not Used
Override
Not Used
Daylighting
Bathroom Mode
Relay Swap
4
Relay 2
Relay 1 & 2
(DMV model only) (DMV model only) (DMV model only)
Daylight Sensor Adjustment
Ultrasonic Sensitivity Adjustment
ON
1 2 3 4 5 6
7 8 9 10 11 12
Ordering
Catalog #
Maximum
Room Size
Field of View
Frequency
Features
OAC-U-2000-MV
OAC-U-2000-DMV
2,000 sq. ft.
2,000 sq. ft.
Two Way (360°)
Two Way (360°)
32 kHz
32 kHz
w/ Daylight Sensor
Dual Relay w/ Daylight Sensor
Eaton
1000 Eaton Boulevard
Cleveland, OH 44122
United States
Eaton.com
Eaton’s Cooper Controls Business
203 Cooper Circle
Peachtree City, GA 30269
coopercontrol.com
© 2014 Eaton
All Rights Reserved
Printed in USA
Publication No. ACC141059
January 20, 2015
Eaton is a registered trademark.
All other trademarks are property
of their respective owners.