Velleman HAA50 Manuel D'utilisation page 2

HAA50 – INFRARED CEILING-MOUNTED PIR DETECTOR
1. Introduction
The HAA50 is a ceiling-mounted PIR detector, designed for use with residential and commercial
security applications. It provides a conical detection pattern. This pattern has a Ø of 36ft (11m)
when the device is mounted on a 12ft- ceiling (3.6m).
The HAA50 is fitted with pulse-counting PIR detection circuitry and employs a pyroelectric
sensor equipped with two elements that produce low-level noise only. These two elements also
provide substantial immunity to false alarm.
2. Detection Pattern
3. Mounting Location
• Mount the detector on a stable ceiling at a max. height of 12ft (3.6m).
• Install the detector in an environment that is shielded from the elements.
• Select a mounting location that will allow the beams of the detector to pick up the
movements of possible intruders.
• Avoid direct exposure to hot or cold air currents.
• The unit should not be aimed at surfaces that are subject to sudden and violent changes in
temperature, such as air conditioning vents, exterior metal walls, windows or the curtains in
front of them, refrigerator or freezer grilles, etc.
• Do not place large objects in front of the detector, as this will diminish the area covered by
the detector's beams.
HAA50
pulse counter
selector
LED
on/off
mounting hole
relay
wire knockout
1
detection LED
PIR sensor
mounting hole
tamper switch
connection
terminals
VELLEMAN