Merrytek MSA021D RC User Manual page 11

FAQ
Fault
The sensor is
self-triggered
or the load will
permanently
illuminated
The load will
not illuminate
despite
movement or
breathing
Cause
Microwave can penetrate
glass, wood and other
non-metallic materials.
The sensor is installed close
to the wireless device.
There are vibration or jitter
signals in the installation
environment.
The position of the person
exceeds the coverage area of
the breath signal detection.
The installation position of
sensor is behind or to the
side of the person.
The microwave signal is
blocked by obstacles.
The ambient light level is
higher than the threshold
value.
Remedy
Reduce the detection area.
Installed the sensor 2 meters
away from the wireless
devices.
1.
Make sure that there are no
other motion signals in the
space, such as vibrating
equipment, rotate fan,
curtain swinging.
2. Reduce the detection area.
Adjust the installation
position.
Adjust the sensor installation
position and make sure to
install the sensor above the
front of the person.
Adjust the sensor installation
position and keep it away
from obstacles.
1. Check if there are other
light-emitting objects or
lamps in the environment.
2. Increase the threshold
value or cancel the
daylight sensor function.