7
Problem
• Unit activates
during the daytime
• PIR coverage is
poor/sporadic
• Detection range
varies from day
to day
Solution
The level of ambient light in the area may be too dark for the
current DUSK setting. During daylight, adjust the DUSK control slightly
anti-clockwise. When the lamp load extinguishes, enter the detection
area. If the PIR still activates, the setting is still too high. Repeat the
above procedure until the PIR does not activate when you enter the
detection area. Refer to previous section for more details.
Unit may be poorly located. See previous section –
‘Selecting The Location’ and re-locate the unit.
PIR sensors are influenced by climatic conditions. The colder the
ambient temperature, the more effective the sensor will be. You may
need to make seasonal adjustments to the sensor head position to
ensure trouble-free operation all year round.