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Door sensor: an intrusion detector designed for use on doors and windows which reports the opening of the door or window when its magnet is moved
away from its body. The detector is generally installed to the fixed part of the door or window, opposite to the hinges, with the magnet attached to the mobile
panel. The protection function may be augmented by connecting a second sensor with NC or pulse contact to its terminals (in the latter case, cord detector
for roll-up shutters).
It has an NO input which can be used for connecting a flooding sensor, for instance.
Vertical shutter lens sensor: an intrusion detector designed for protecting doors and windows, with a shuttered lens which detects the movement of
persons within a limited field of view in front of the lens itself (fig. 4).
It can be installed on the ceiling, at the top centre of a door or window (normally between the window itself and the shutters or blinds) and in areas under
cover. The sensor has a second terminal for connecting a second sensor with NC or pulse contact (in the latter case, cord detector for roll-up shutters). This
augments the protection and optimises the coverage of the area being protected.
Volumetric sensor: an intrusion detector designed to protect rooms; it reports the movement of persons in the protected area. It can be wall or corner
mounted using a special bracket, with an optional jointed holder for tilting it down into the room if so desired (not provided).
It operates by detecting the movement of warm bodies; it should therefore not be used in areas subject to currents of warm or cold air, which can cause
false alarms. If the sensor is active and the room is inhabited by warm-blooded animals, one must install it in a position and at an angle to keep its detection
area 50-70 cm off the floor (fig. 5); it may also be necessary to reduce its sensitivity.
The sensor has a second terminal for connecting a second sensor with NC or pulse contact (in the latter case, cord detector for roll-up shutters). This aug-
ments the protection and optimises the coverage of the area being protected.
Volumetric sensors for large rooms: normal volumetric sensors are more than able to cover normally-sized living spaces. For very large rooms, sensors
are available which can cover ranges up to 12 m with s 120° field of view. This type of sensor is equipped with a sensitivity adjustment, used to calibrate the
size of the protected area.
Dual technology sensors: intrusion detectors for protecting rooms, using 2 different technologies (IR and microwave) to detect the movement of persons
in the protected area. IR technology detects body heat, while microwave technology uses the Doppler effect to detect movement (including cold objects).
The combination of these two technologies gives the most effective coverage and also reduces false alarms.
Outdoors sensors: sensors are generally designed for use in protected indoors rooms. They operate correctly in a relatively restricted range of tempera-
tures and are not completely protected against rainfall. Special sensors are available which are adapted for outdoors use with temperature ranges of as
much as -25 to +50°C, which are also completely weatherproofed. All such sensors are equipped with sensitivity adjustments to set the size of the protected
area and prevent false alarms caused by, among other things, normal moving objects (branches and leaves), small animals, insects, and so on.
Glass breakage sensors: a sensor that detects the breaking of glass panes (both normal and double-glazed). The detector is equipped with a microphone
specifically calibrated to recognise the sound of breaking glass; be aware that it can thus be tripped by similar sounds - like a glass shattering when it is
dropped. The sensor should therefore only be activated when there is no-one in the protected area capable of producing sounds which could trip the sensor.
False alarms can also be tripped by appliances which generate cyclic pressure variations in the room (air conditioners, fans, etc.).
Sound damping materials (such as curtains and carpeting) may reduce the sensitivity of the device.
The device is factory calibrated and cannot be adjusted.
For best detection results, the device should be installed in a rooms of 20 to 30 m
It should not be installed in rooms smaller than 10 m
situations are critical and may cause false alarms.
Fine particle (smoke) sensor: a detector for detecting fine particles generated by combustion (fog or smoke effect) for residential applications. It uses a
photo-diode to detect the opacity of the air and reports the alarm both directly on site (with a buzzer) and wirelessly transmits it to the control panel. The
sensor can detect the event over a maximum surface of 6 x 6 m; it must be positioned at the centre of the ceiling. Smaller, but not square rooms, such as
corridors, must be equipped with more than one detector.
Flooding sensor: a sensor that detects flooding caused by leaks. It must be wall-mounted, at floor level (the internal sensor is around 1 mm off the ground)
and placed in an area where a water leak is likely to occur, such as next to a sink or washing machine.
If the floor is not flat, the sensor should be put at its lowest point. The sensor connects to the NO input of a compatible detector (e.g. HSDID11).
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, 3 to 6 m away from the glass pane in question and at 2 m off the ground.
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, in very humid areas (such as bathrooms and kitchens) or in garages with large metal doors. Such
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