Honeywell Home RCA902N Directives D'installation page 22

Installation Instructions
Motion Detector activates Switching Receiver during the day and not during the night...
• Check that the detector operating switch is set to the NIGHT position.
Motion Detector activates Switching Receiver during the day as well as at night...
• The ambient level of light at the detector may be too low for the current dusk setting
permanently simulating night-time. In normal daylight, adjust the dusk control slightly
counter-clockwise. Wait outside the detection area until the light goes out, then re-enter it to
see if the movement activates the light. If necessary continue to adjust the dusk setting until
movement does not activate the light. In extreme cases it may be necessary to reposition the
detector.
Motion Detector activates for no apparent reason at random without any movement in its
detection area...
• Wind, small animals or pets, passing traffic or pedestrians may be activating the detector. Try
adjusting the detector head or masking sections of the lens to reduce the detection area. You
may even have to move the detector to a different position.
Detection range varies from day to day...
• The detector operates by sensing temperature changes caused by a person moving through
its detection zones. These temperature changes are measured relative to the background
temperature so on a colder day it may appear more sensitive than on a warmer day.
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