Unit placement – Legrand CSU Series 32 kHz User Manual
Page 3
UNIT PLACEMENT
Placement of ultrasonic sensors is critical for proper operation. It is best to place the sensor so that
it has a clear view of all desktops and work surfaces within the coverage area. Orientation of the
sensor is also important. The CSU600 offers 360° one-sided coverage while the CSU1100 and
CSU2200 provide 360° two-sided coverage.
Transducers (the two or four small round openings on the cover of the sensor) operate in pairs
(see the Coverage Patterns graphic, previous page), and the centerline of the pair must be oriented
correctly for proper coverage.
Note:
• The transducer pairs orientation determines the coverage pattern.
• Sensors should not be mounted so that transducers point toward a wall that is within
4 feet of the sensor.
• Ultrasonic sensors may false trigger when exposed to high
volumes of air flow. Sensors should be installed at least
4 feet from supply ducts and a minimum of 6 feet from
horizontal discharge ducts.
• Do not mount sensors within 6 inches of a power pack.
• Always mount the sensor on a rigid vibration free surface.
• When mounting multiple sensors in a large room, do not
mount the sensors within 10 feet of each other.
Open Office Sensor Placement
A typical layout for an open office space is to place
the ultrasonic sensors so they control the office area
in zones that overlap. A 20% coverage overlap
is recommended.
Enclosed Office Sensor Placement
For smaller enclosed spaces, a CSU600 is recommended.
Sensors should be placed so that they will not detect motion through an open door.
Transducers must face into the room and not be directed toward the closest walls or doors.
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Call 800.223.4185 for Technical Support
Coverage
Overlap
(CSU2200
shown)