Honeywell RCA902N Directives D'installation page 22

Installation Instructions
• Check that the Receiver has correctly learned the detector identification code by following the
test procedure. If necessary reset the Receiver and relearn the code.
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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