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360° Dual Technology • Low Voltage
Specifications
Voltage ........................ 18-28VDC/VAC, half wave rectifi ed AC
Current Consumption ...................................................... 30mA
Power Supply .................................Watt Stopper Power Packs
Isolated Relay Rating ...................................... 1A @30VDC/VAC
Operating Temperature ..................... 32° to 131°F (0° to 55°C)
Time Delay Adjustment .................................... 5 to 30 minutes
Walk-Through Mode ...3 minutes if no activity after 30 sec.
Test Mode ............ 5 sec. upon intial power-up or DIP reset
PIR Coverage (Typical) .................................................. 1000 ft
Sensitivity Adjustment Automatic or Low (DIP switch setting)
Ultrasonic Coverage (Typical) ....................................... 1000 ft
Sensitivity Adjustment ..... Minimum to Maximum (trimpot)
Frequency .................................................................. 40kHz
DT-305
Occupancy Sensor
2
2
U.S. Patents: 4,787,722
5,189,393
and Patent Pending
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Summary of Contents for LEGRAND WattStopper DT-305
- Page 1 DT-305 360° Dual Technology • Low Voltage Occupancy Sensor Specifications Voltage ......18-28VDC/VAC, half wave rectifi ed AC Current Consumption ............30mA Power Supply .........Watt Stopper Power Packs Isolated Relay Rating ........1A @30VDC/VAC Operating Temperature ..... 32° to 131°F (0° to 55°C) Time Delay Adjustment ........
- Page 2 UNIT DESCRIPTION The Watt Stopper DT-305 360° Dual Technology occupancy sensors combine advanced passive infrared (PIR) and ultrasonic technologies into one unit. The combination of these technologies helps to eliminate false triggering problems even in diffi cult applications. The DT-305 turns lighting systems on and off based on occupancy. The DT-305 provides numerous operating modes that can be combined to create the ideal custom control.
- Page 3 PLACEMENT GUIDELINES 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.
- Page 4 If the space is larger than 30’ x 30’ it will be necessary to use more than one sensor to ensure complete coverage. Coverage 30 ft (9.14m) Ultrasonic Overlap Ultrasonic Coverage 30 ft (9.14m) Sensor Ultrasonic Overlap Call 800.879.8585 for Technical Support...
- Page 5 WIRING DIRECTIONS CAUTION TURN POWER OFF AT THE CIRCUIT BREAKER BEFORE INSTALLING POWER PACKS, SWITCHES OR SENSORS. Each Watt Stopper B series power pack can supply power for up to 3 DT-305 sensors. Each Watt Stopper BZ series power pack can supply power for 4 DT-305 sensors.
- Page 6 CONNECTING WIRES • Care should be taken to separate high voltage power from low voltage (Class 2) control wiring. • All connections to sensor are low voltage, Class 2. Line Voltage Wire Color Legend Black Line Feed Through White Neutral Load #1 Power Pack Low Voltage...
- Page 7 Line Voltage Wire Color Legend Black Line White Feed Through Neutral Load Power Pack Low Voltage Line Voltage Class 2 Blue +24V Control Out Black Common Man.Switch Common Jumper Man.Switch Back LVS-1 Ceiling Depluggable Terminal Spring Clips (2) LVS-1 Rear Housing For low voltage momentary switch set DT-305 DIP switches:...
- Page 8 MOUNTING THE SENSOR Directly to Ceiling 1. Attach the plastic spring clips to the edge of the sensor in the slots Ceiling provided. 2. Cut a 3.5” to 4” round hole in the acoustic ceiling tile at the mounting Depluggable terminal location.
- Page 9 SENSOR ADJUSTMENT This unit is pre-set for basic operation as described in this guide. Adjustment is optional. The sensors are factory preset to allow for quick installation in most applications. Verifi cation of proper wiring or coverage, or customizing the sensor’s settings can be done using the following procedures.
- Page 10 DIP SWITCHES Occupancy Logic: Switches 1, 2, 3 Logic Confi guration Chart The DT-305 has 8 logic confi gurations for occupancy triggers. Determine the appropriate Occupancy Logic Option using the Trigger matrix, then set the DIP switches accordingly. Trigger Initial Occupancy: The method that activates a change Standard Both Either...
- Page 11 LEDs: Switch 7 When enabled, the red PIR and green Ultrasonic Activity LEDs on the sensor will light when the associated technology detects motion. PIR Sensitivity: Switch 8 • Minimum forces a reduced detection range for the PIR. • Max./SmartSet causes the DT-305 to monitor the controlled environment and automatically select the maximum sensitivity that will provide reliable operation without false detection.
- Page 12 TROUBLESHOOTING Lights do not turn on when entering the room. Neither LED 1. Check that the circuit breaker has been turned back on. Flashes 2. Check all sensor and power pack wire connections. 3. Check for 24VDC input to the sensor between the red and black low voltage wires.
- Page 13 Lights do not turn off automatically. Green LED Reduce ultrasonic sensitivity by turning adjustment pot fl ashes counter-clockwise until it only fl ashes when movement occurs. Red LED Check to see if you have used the Manual Switch connection. fl ashes briefl y Do not connect anything to this terminal if you are not using a and Green LED low voltage momentary switch between the sensor and power...
- Page 14 ORDERING INFORMATION Catalog # Description DT-305 Dual Technology Occupancy Sensor, 360° Low Voltage DT-300 Dual Technology Occupancy Sensor, 360° Low Voltage w/isolated relay and light level sensor BZ-100 Power Pack: 120/277VAC, 60Hz, 150mA, 20A ballast or incandescent, 1HP@120/240VAC B120E-P Power Pack: 120VAC, 60Hz, 150mA, 20A ballast/13A incandescent B230E-P Power Pack: 230VAC, 50/60Hz, 150mA...
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