Placement Guidelines - LEGRAND Wattstopper Manual De Instrucciones

Depending upon obstacles such as furniture or room layout, the area of coverage may be less or more than the sensing distances
shown in the coverage pattern. This must be considered when planning the number of sensors and their placement. It is also
recommended to place the sensor at least 4 to 6 feet away from air supply vents.
Mount the sensor to the ceiling. The DT-305 is designed for a ceiling heights of about 8-12 feet. Mounting above or below this range will
significantly affect the coverage patterns. As a general rule, each occupant should be able to clearly view the sensor.
Masking the PIR Lens: Opaque adhesive tape is supplied so that sections of the PIR lens can be masked. This restricts the sensor's
view and allows you to eliminate PIR coverage in unwanted areas such as hallways outside of the desired coverage area. Since
masking removes bands of coverage, remember to take this into account when troubleshooting coverage problems. The Ultrasonic
coverage cannot be masked, but you can adjust its sensitivity to reduce the coverage area.
Common application: Classroom: Position the
sensor so that the maximum coverage is achievable.
Be sure that the sensor is not pointing out the door.
Sensor
Each Wattstopper BZ series power pack can supply power for 7 DT-305 sensors.
When using more sensors than this, multiple power packs are required.
Refer to the wiring diagram on the next page for the following procedures:
Connect the low voltage:
• RED wire (+24VDC) from power pack to the +24V terminal on the sensor.
• BLACK wire (Return) from power pack to Common terminal on the sensor.
• BLUE wire from power pack to Control Out terminal on sensor.
To add a MANUAL SWITCH such as the LVSW Momentary Toggle Switch, or
RS2-3 Low Voltage Momentary Switch to the above applications (see wiring
diagram "Manual-On wiring with low voltage momentary switch") – connect:
• Wire from one side of switch to +24V terminal on sensor.
• Wire from other side of switch to Man Switch terminal on sensor.
Wiring the ISOLATED RELAY: The Isolated Relay is rated for 1A@30VAC/VDC.
Connect the wires necessary to the application that requires this output:
• Relay Common (must be used for proper operation)
• N.O. (Normally Open)–Closed when occupancy is detected
• N.C. (Normally Closed)–Open when occupancy is detected

PLACEMENT GUIDELINES

36'
36'
20%
Ultrasonic
Overlap
WIRING DIRECTIONS
WARNING: TURN THE POWER OFF AT THE
CIRCUIT BREAKER BEFORE WIRING.
2
If the space is larger than 30' x 30' it will be necessary to
use more than one sensor to ensure complete coverage.
36'
36'
20%
Sensor
Ultrasonic
Overlap
PIR
Coverage
36 ft
(10.97m)
Ultrasonic
Coverage
36 ft
(10.97m)
DT-305
v3
360° Dual Technology
Occupancy Sensor
PIR & 40kHz Ultrasonic
+24VDC/VAC
Connect to WattStopper
Class 2 Power Packs
For Indoor Use Only
Control Out
Appliance
Control
88T9
LISTED E101196
Man. Switch
+24V
Common
www.legrand.us/wattstopper
Wiring terminals