Placement Guidelines - LEGRAND Wattstopper DT-300 Mode D'emploi

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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-300 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

WARNING: TURN THE POWER OFF AT THE

CIRCUIT BREAKER BEFORE WIRING.

Each WattStopper BZ series power pack can supply power for 6 DT-300

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