User manual SENNHEISER AUDIOBEAM

[. . . ] How AudioBeam works How AudioBeam works AudioBeam is able to focus sound ­ either directly or via reflections on a surface. Information in museums and at exhibitions to be radiated directly from the exhibits ­ only visitors standing directly in front of an exhibit are addressed. AudioBeam limits sound reproduction to precisely defined areas ­ adjacent areas are kept sound-free. [. . . ] Use AudioBeam in dry rooms only and keep liquids and small parts which conduct electricity away from the unit and its connecting sockets. Sensitivity selector switch (+6 dBm, ­14 dBm) » On/off switch for distance sensor (it is vital to observe the warning on page 15!Failure to comply with the following location conditions may result in danger to persons and damage to AudioBeam!The ultrasonic sound wave can travel undisturbed for at least 1 m before it strikes the first surface. The sound (including the reflections) can travel for at least 4 m before it strikes a human being !A minimum distance of 10 cm is maintained between AudioBeam and adjacent objects so that any heat generated can dissipate. Make sure that the air vents at the top and rear of the unit are not covered or blocked!A minimum distance of 1 meter is maintained between AudioBeam and combustible materials !AudioBeam is kept away from heat sources such as central heating radiators, spot lights and lamps. AudioBeam never gets damp or wet Mounting AudioBeam in a fixed position To ensure that AudioBeam is always orientated towards the correct area of interest, you should mount AudioBeam fixedly. For free installation, use a table or floor stand (see: , , Accessories" on page 16). Screw the mounting plate or the table or floor stand to the thread ¶. By using a gooseneck or swivel joint (see: , , Accessories" on page 16), directly orientate AudioBeam towards the correct area of interest or the reflection area. Mounting AudioBeam movably or rotatably Screw AudioBeam onto a drive mechanism or a rotating mechanism using the 5/8" thread ¶. Start up AudioBeam as described on page 15 and ensure that the distance sensor does not trigger in rotating mode (LED operation indicator ³ is constantly lit green). If the distance sensor triggers (LED operation indicator ³ lights up red): ³ Remove all objects from the rotating range scanned by AudioBeam up to a distance of 4m. If the distance sensor still triggers (LED operation indicator lights ³ up red again), you must turn off the built-in distance sensor as follows: Putting AudioBeam into operation If you turn off the built-in distance sensor, persons who come closer than 4 m to AudioBeam may be in danger from ultrasound. Always ensure that nobody can come closer than 4 m to AudioBeam across the entire rotating range! [. . . ] The following accessories are available from your Sennheiser distributor: GZP 10 GZG 1029 MZT 14 MZT 100 MZT 1019 SEMS 3134 Mounting plate for wall and ceiling mounting Swivel joint for attachment to stands or the GZP 10 mounting plate, includes 1/4" interchangeable thread Mounting bolt for mounting goosenecks and swivel joints with 3/8" thread to table tops Stable, metal table stand with 3/8" thread Mounting bar for two units with 3/8" internal thread Floor stand with 3/8" thread 4 mV) = lower switch position 600 75 dB ± 5 dB (at a distance of 4 m) 1 x BNC, 50 shortcircuit-proof approx. L'AudioBeam est coupé automatiquement par un détecteur de distance intégré dès qu'une personne s'approche à une distance inférieure à 4 mètres. Si le détecteur de distance se déclenche (la DEL d'indication de fonctionnement ³ s'allume en rouge) : Retirez tous les objets de la zone de pivotement couverte par l'AudioBeam jusqu'à une distance de 4 m. [. . . ]