Chamberlain CWA2000C ユーザーズマニュアル

3

The PIR Motion Sensor lights up, but the Base Station does 
not respond.
The PIR Motion Sensor must be programmed to Base Station 
(See Step 4). Ensure Base Station is on and the volume is 
turned up.

PIR Motion Sensor is detecting motion only part of the time.
Ensure the PIR Motion Sensor is set to the High Sensitivity 
setting (See Step 2). To detect cars, it is best to mount PIR 
Motion Sensor at height of car’s motor and have it between 
10-20 feet (3-6 m) from the road. Swivel sensor as needed.

The Alert is giving false alarms.
Check for moving tree branches or insects in sensor window. 
PIR Motion Sensor can also be triggered by light shining 
directly in sensor window, such as refl ected sunlight, or motion 
in front of a light source.
It is possible that condensation has built up on the sensor. Wipe 
condensation from PIR Motion Sensor with cotton swab. Let it 
sit inside for a few hours, open to the air, without the batteries 
and it should correct itself.
Check Sensor Switches on PIR Motion Sensor. See Switch 
Settings.

Base Station beeps every 30 minutes.
The batteries in the Base Station or the PIR Motion Sensor(s) 
are low. Replace the 4 AA batteries. Check the PIR Motion 
Sensor(s), if the LED illuminates on all of the PIR Motion 
Sensors, change the batteries in the Base Station.

The Alert is not getting expected transmission range.
Keep both antennas vertical and keep PIR Motion Sensor 
antenna away from trees and metal objects. Ensure Base Station 
is in clearest possible sight of the PIR Motion Sensor. The less 
objects between the devices, the longer the range.