CMS100
Product Manual, Issue 8
www.nexo.com
Page 17
2.3
Motion sensor
Motion sensors are passive infra-red (PIR) devices
that detect activity. The diagram shows the detection
pattern of motion sensors.
The motion sensor must have an uninterrupted view
directly in front and to the sides.
The preferred location of the motion sensor is in the
upper section or in header panel of the cooler to
ensure the best motion detection and to lower the
risk of the motion sensor being blocked by objects
such as packages.
For the controllers without integrated motion sensor, a
remote motion sensor can be used.
The remote motion sensor head is supplied detached
from the cable to allow the cable to be easily routed
through holes or foamed into place as required by the
OEM or installer.
The motion sensor should be mounted vertically with
the connector at the bottom for optimal performance.
Mounting horizontally with the connector at the side
results in the motion sensor being less sensitive.
However, the motion sensor still works correctly.
The motion sensor must not be located behind any material such as glass or polycarbonate.
For a motion sensor that is not mounted flush with the panel, the diagram shows the minimum
recommended clearances to ensure motion detection. For example, if the motion sensor is mounted
15mm behind the panel, a 30mm diameter aperture is required.
55 mm
30 mm
65 mm
15 mm
The motion sensor head must be fixed using counter sunk screws or bolts with the following characteristics:
`
Head: countersunk, maximum diameter 6.0mm (0.24in)
`
Thread: maximum diameter 4.0mm (0.16in).
The screws must be tightened to a maximum torque of 0.5Nm (0.37lbfft).
2.
5m
3m
