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Sensors LOS-WDT Series Occupancy Sensors
369752c 1 06.04.2014
Dual Technology Wall Mount Occupancy Sensor
The LOS-WDT Series dual technology sensor can be
mounted to a wall or ceiling for use in spaces with pendant
fixtures, ceiling fans, or high ceilings (higher than 12ft
[3.7m]). The technology eliminates manual sensitivity and
timer adjustments during installation and over the life of the
product.
Designed to meet the challenges found in a wide variety of
spaces, the sensor works well in spaces with overhead fans
and space heaters. Ideal for use in work areas, storage
facilities, storerooms, indoor garages, and rooms with
pendant fixtures.
Features
• Intelligent, continually adapting sensor
Ultrasonic (US) combined with Passive Infrared (PIR) sensing
provide high sensitivity, high noise immunity, and excellent
false tripping immunity
Suited for complex environments that are difficult to control
with single-technology sensors
Use in rooms with pendant fixtures and storage areas
Flexible base mounting on wall or ceiling
Aim and lock: base mount permits fast alignment
Non-Volatile Memory: settings saved in protected memory
are not lost during power outages
1600 ft( (148 m() coverage when used where the ceiling
height is between 8 ft to 12 ft (2.4 m to 3.7 m)
Affords choice of turning lights off or dimming to a preset
level in the unoccupied state when integrated with a LutronR
system.
Models Available
Model Color Coverage Field of View
LOS-WDT-WH White 1600 ft( (148m() 110°
LOS-WDT-R-WH White 1600 ft( (148m() 110°
NOTE: BAA-compliant model numbers available. Add a “U” prefix to the
model number.
Self-Adaptive Feature
The LOS-WDT Series sensors combine both Ultrasonic (US)
motion detection for maximum sensitivity and Passive Infrared
(PIR) motion detection for false triggering immunity. The self-
adapting internal microprocessor analyzes the composite sum
of both signals to eliminate time-consuming adjustments and
callbacks found in non-intelligent sensors.
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Dimensions
Specifications
Regulatory Approvals
• ULR and cULR listed
Power
• Operating voltage: 20 – 24 V-, IEC PELV/NECR
Class2
• Operating current: 33 mA nominal
• Control output: 20 – 24 V- active high logic control
signal with short-circuit protection, open collector
when unoccupied
Environment
• Temperature: 32 °F to 104 °F (0 °C to 40 °C)
• Relative humidity: less than 95%, non-condensing
• For indoor use only
Timer Adjustment
• Automatic mode: Continually adapting sensor
automatically adjusts settings to the space
• Manual mode: 4 to 30 minutes
• Test mode: 8 seconds
LED Lamp
• Red: infrared motion detected
• Green: ultrasonic motion detected
Adaptive Functions
Installation: 60 minutes
Learning: 4 weeks for response to error conditions, air
current adaptation, and timer optimization
• Post-learning occupancy periods
—24 hour circadian occupancy periods learned
—Weekly occupancy periods learned
• Adjustments in post-learning period
Generally occupied periods
(threshold = high-sensitivity mode)
Generally unoccupied periods
(threshold = miser mode)
Contact Rating (LOS-WDT-R-WH only)
• SPDT 500 mA rated at 24 V- isolated relay
Photo Cell (LOS-WDT-R-WH only)
• Prevents light from turning on when there is sufficient
natural light
• Sensitivity: 20 lx to 3000 lx adjustable
Measurements shown as: in (mm)
Front View Side View
3.6
(92)
3.9
(99)
5.25
(133)
2.7
(69)
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Power packs may be required when interfaced to LutronR lighting control systems. If more than 1 occupancy
sensor is connected to the same input, a power pack is required. A maximum of 3 occupancy sensors can be
connected to the same input. If more than 3 sensors are required per input, use LOS-WDT-R-WH model.
Power Supply Options
LutronR Lighting Control System Power Pack Required?
Digital microWATTT No
EcoSystemR No
Energi Savr NodeT No*
GRAFIK 5000T/6000R/7000T No, when used with seeTouchR wallstations with occupancy sensor connections.
GRAFIK EyeR 3000/4000 Yes
GRAFIK EyeR QS No*
HomeWorksR Yes
HomeWorksR QS No*
LCP128T No, when used with seeTouchR wallstations with occupancy sensor connections.
microWATTR No
QuantumR No*
RadioRAR Yes
RadioRAR 2 Yes
Softswitch128R No, when used with seeTouchR wallstations with occupancy sensor connections.
Wiring: System Control
* Some system components do not supply external power for occupancy sensors. Refer to individual product specifications
for more information.
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Wiring: Stand-Alone Control
1 to 3 Sensors with Power Pack
Switching Multiple Loads with Auxiliary Power Packs
Lighting
Load
Lighting
Load
Lighting
Load
Line
Power
Pack
Power Pack
Auxiliary
Power Pack
Line
Neutral
Neutral
120/277/347V~60 Hz
230V~50/60 Hz
120/277/347V~
60 Hz
230V~
50/60 Hz
NOTE: Maximum 3 occupancy sensors.
NOTE: Maximum of 3 devices total (occupancy sensors and auxiliary power packs) can be connected to a
powerpack.
Black
Black
White
White
Red
Red
Red
Red
Red
Red
1
2
3
Red (+20 – 24 V-)
Blue* (signal)
Black (common)
1
2
3
1
2
3
*Use gray wire for LOS-WDT-R-WH.
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Placement Diagram
Correct
Incorrect
Hallway
Range Diagram
Installation
Sensor Placement
• The occupancy sensor must have an unobstructed view of the room. Do not mount behind or near tall cabinets,
shelves, indirect hanging fixtures, etc.
• Do not place sensor within 6 ft (1.8 m) of air vents, air handlers, windows, fans, etc., as this may cause false
triggering.
• Place the sensor on the same wall as the doorway so that traffic in a hallway will not affect the sensor.
• Closely follow the diagrams shown concerning major and minor motion coverage. The sensor can detect major
motion (e.g. person taking a half-step) at a greater distance than it can detect minor motion (e.g. writing at a
desk or reading a book).
• Decrease total coverage area by 15% for “soft” rooms (e.g. heavy draperies or thick carpeting).
Sensor Setup
• Sensor setup is available as a service by Lutron. For more information see the Sensor Layout and Tuning
service document (LutronR P/N 3601235).
20 ft
(6.1 m)
23 ft
(7 m)
32 ft
(9.8 m)
32 ft
(9.8 m)
40 ft
(12.2 m)
23 ft
(7 m)
Major motion detection (Ultrasonic)
Minor motion detection (Ultrasonic)
Major motion detection (Passive Infrared)
Minor motion detection (Passive Infrared)
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Mounting Plate Dimensions
Measurements shown as: in (mm)
0.52
(13.3)
2.5
(63)
2.25
(58)
3.35
(86)
Wire Lengths
Number of Sensors 1 2 3 1 2 1
Number of Auxiliary
Power Packs
0 0 0 1 1 2
22 AWG 750 ft 375 ft 250 ft 375 ft 250 ft 250 ft
0.5 mm( 365 m 180 m 120 m 90 m 120 m 120 m
20 AWG 1200 ft 600 ft 400 ft 600 ft 400 ft 400 ft
0.75 mm( 730 m 365 m 240 m 365 m 240 m 365 m
18 AWG 2400 ft 1200 ft 800 ft 1200 ft 800 ft 800 ft
Mounting
The sensor can be mounted to a wall, ceiling or acoustic ceiling tile.
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Off (Default) On
Automatically Turn Lights On Manually Turn Lights On
Not Used Not Used
LED On LED Off
Lock Settings Unlock Settings (any change resets learned settings)
ONOFF
ONOFF
ONOFF
ONOFF
A
1
2
3
4
B
1
2
3
4
Off (Default) On
OFF
8 minutes
OFF
4 minutes
ON
15 minutes
ON
30 minutes
OFF ON OFF ON
Auto Timer Adjust On Auto Timer Adjust Off
Auto Sensitivity Adjust On Auto Sensitivity Adjust Off
} }} }
Factory Settings
A B
1 2 3 4
1 2 3 4
Timer Test Mode:
Push and Release – 8 second test timer (resets to Normal timer after 1hour)
Push and Hold (flash) – Normal timer
Continued on next page...
Red:
Infrared sensitivity
75% default
Green:
Ultrasonic range
50% default
Blue:
Photo cell (LOS-WDT-R-WH only)
100% default
Sensor Adjustments
Override Settings
Auto/Manual
N/A
LED Indicator
Settings
Manual Timer
Auto Timer
Auto Sensitivity
}
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Sensor Adjustments (continued)
Adjusting the “Lights Not On” Level
LOS-WDT-R-WH only
Control Settings (Blue Knob)
LOS-WDT-R-WH only
1. Place timer in Test Mode (see page 7).
2. Set photo cell to maximum. Turn the blue knob full
clockwise (lights on no matter how bright the natural
light is), then about 30° counterclockwise.
3. Check for Lights-Out. Move from underneath the
sensor, and remain still until the lights turn off. Move
around normally to turn the light on.
4. Adjust to desired level. If lights remain off, adjust the
blue knob another 30° counterclockwise and repeat
step 3 until the lights turn on.
NOTE: Set blue knob to 100% to disable photo cell
functionality and leave secondary dry contact closure output
functionality intact.
20 3000
20 3000
20 3000
Minimum (low):
Lights will never come on, even though
room is occupied.
Maximum (high):
Photo cell has no effect on operation
(factory setting).
Normal:
200 lx to 600 lx is normal range.
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