CA452001EN - March 2015
This discrete microwave detector is supplied already integrated
into our luminaires to provide occupancy/motion detection with
simple adjustment of detection range, time out and switching light
• Simple set up and operation
• Up to 360° detection (subject to mounting orientation)
• 1m to 5m diameter detection range, up to 8m diameter
• 2 to 30 lux switching for twilight operation subject to mounting
and luminaire compatibility
• 5sec to 25min time delay
An HF or microwave detector operates differently to a Passive
Infra-Red detector (PIR), it is important to understand the main
operational differences to ensure the correct device is used for the
Unlike motion detectors with PIR technology, this high frequency
(HF) motion detector emits a 5.8 GHz signal.
Movement is detected by a change in frequency of waves
reflected by a moving object within the detection zone. Vibration
or moving machinery may also trigger the device.
The HF detectors are almost temperature-independent, whereas
temperature is the basis for the PIR motion detectors temperature
Infra-red waves from a PIR detector do not pass through walls,
but high frequency waves can do. As a consequence, it may not
be possible to have the clear boundary of a room wall when using
an HF occupancy detector. Therefore, movement of people or
machinery in adjacent rooms may also be detected and activate
the device, resulting in lights activating unnecessarily.
The HF sensor is ideally suited to integration within luminaires
with panels or diffusers through which a PIR’s detection and
functionality may be impaired.
The sensor is often set to daylight to deactivate the photocell to
avoid false switching due to proximity to the lamps.Integrated Microwave Detector
Range and sensitivity can be set by the 3 dip switches
The chosen range can be varied from 1 to 5m. Avoid locating the
device near a heating or air conditioning source.