Unwanted Sensor Activations (LED flashes):
• Possible causes
1. The ultrasonic sensitivity may be too high causing detection outside of desired
coverage area.
2. Sensor located too close to HVAC or VAV vents with heavy air flow.
• Possible solutions
1. Reduce the ultrasonic sensitivity (counterclockwise) as needed (see “Sensor
Adjustment”).
2. Relocate the sensor.
Catalog #
Description
UT-305-1
Ultrasonic Occupancy Sensor, up to 300 sq ft coverage,
Low Voltage
UT-305-2
Ultrasonic Occupancy Sensor, up to 1000 sq ft coverage,
Low Voltage
UT-305-3
Ultrasonic Occupancy Sensor, up to 2000 sq ft coverage,
Low Voltage
UT-300-1/2/3
Ultrasonic Occupancy Sensor, Low Voltage
w/Isolated Relay and Manual On feature
BZ-50
Power Pack: 120/277VAC, 50/60Hz, 225mA, 20A ballast
or incandescent, 1HP@120/250VAC
BZ-150
Power Pack: 120/277VAC, 50/60Hz, 225mA, 20A ballast
or incandescent, 1HP@120/250VAC
S120/277/347E-P
Auxiliary Relay Pack: 120/277VAC, 60Hz, 20A Ballast
347VAC, 60Hz, 15A Ballast
All sensors are white.
BZ series power packs supply power for up to 4 UT-305 sensors.
ORDERING INFORMATION
Call 800.879.8585 for Technical Support
