Detector acoustic AD-500/600, Extronic

AD500/600 is a presence detector for energy-saving lighting control.
By listening to sounds from two different frequency ranges and analysing them, a presence may be detected.
The lighting is switched on by audibly undetectable, low frequency sounds that arise when a door is opened. The lighting then remains switched on by higher audio frequencies from footsteps and speech. The main function is automatic switching the lighting on/off by the presence/absence of the person. Switching on/off can be made in two separate channels, A and B.
Because the AD-500/600 is an acoustic detector, it can hear round corners and in rooms with shielding décor. This makes it especially suitable for stairwells, dressing rooms with cubicles, etc. The AD series acoustic detectors are complementary to the conventional technology where presence detection with passive IR is used.
The detector is available in two versions. The AD-500 can work completely alone. It is powered by 230VAC and in the enclosure there is a DIN rail with space for contacts if required for e.g. control of fluorescent lighting fixtures. The AD-600 has a standard plastic enclosure for mounting on the DIN rail. Since the AD-600 is placed in an electrical cupboard, at least one external microphone needs to be connected.
For AD-500/600, 6 extra microphones may be connected.