BERA 4000


Product description

HOMOTH BERA 4000 PC-module is a real time brainstem audiometer. It is developed considering the latest knowledge of the ENT research. By use of most modern processors, a wide range of possibilities is opened. It is a system lasting into the future for a lot of years, because all changes in diagnostic demands can be loaded as an update or upgrade via software into the system. The software contains pre-selected standard programs, to reduce the operation of the system onto a few keymoves. Beside this, it is possible to create storable measuring programs with individual parameter selections. Further more, the EXPERT-MODE allows to create and change settings during measurement sessions and adapt to changing situations or patients condition. 16 curves can be measured per examination and stored into a temporary memory. The evaluation / analysis can be done afterwards at a later time. All curves are presented high resolution at the colour screen of PC. The program is menu controlled and fitted with a online help.

Technical specifications

system:PC module with USB 2.0 interface System requirements:Pentium PC min. 500 MHz, USB 2.0 Port, Windows XP, 7, 8, 10 (32/64 Bit) Stimulus:Klick 50 - 500 ?s Polarity:positive, negative and alternating Rate:1 - 50 per sec in 0,1 steps Masking:0 - 80 dB white noise Measurement 1 channel (ipsi / contra) EEG amplifier 80 dB / input imp. > 48 MOhm, automatic or manual gain selection Averager:max. 10.000 Sweeps Analysis time:10 ms (fast potentials) Artefacts:real-time elimination ( time and amplitude ) Filter:• 1. highpass 100 - 150 - 200 - 300 Hz • 2. lowpass 1 - 2 - 3 - 8 kHz • 3. software filters • 4. 50 Hz notch filter Results:• 1. curve diagrams 8x right und 8x left • 2. latency diagram • 3. direct comparison right / left Cable lenght:275 cm + 60 cm electrodes cable Power supply:13,2 V, external power supply 100-240 V, 50/60 Hz, 15 W Dimensions:330 x 80 x 265 mm (WxHxD) Weight:2,1 kg Accessories:headphone DD 45, measure cable with 3 electrode clamps, red - yellow - black, set standard electrodes (50 pieces), USB cable, SoftwareCD, power supply, manual