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PLACEMENT GUIDELINES
Depending upon obstacles such as furniture or partitions, 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 4 to 6 feet away from air
supply ducts as rapid air currents or the differences in temperatures may cause
false activations.
Mount the sensor to the ceiling. The CI-355 is designed for a ceiling height of
about 8-12 feet. Mounting above or below this range will significantly affect the
coverage patterns. Be aware that as you decrease the mounting height, you
decrease the range and increase the sensitivity to smaller motions. Conversely,
when you increase the height, you increase the range and decrease the sensitivity
to smaller motions. At heights of more than
12-14 feet, you may start to significantly
reduce sensitivity. As a general rule, each
occupant should be able to clearly view the
sensor.
Often the best location to install a CI- 355 in
a closed office is off-center. Avoid placing
a sensor directly in line with an open door
through which it has a clear view out, as the
sensor may detect people walking by.
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.
Optimizing Coverage:
To get complete
coverage in an open office area, install
multiple sensors so that there is an
overlap with each adjacent sensor’s
coverage area.
For open office areas with partitions it is
best to place sensors over intersection of
four workstations.
For large areas of coverage use multiple
sensors.
CI-205
36'
36'
CI-205
12'
18'
