Interacoustics ASSR Instrucciones De Uso página 11

Date: 2009-09-01
Impedance Check:
33Hz rectangle.
Impedance information for each individual electrode.
No unplugging of electrode leads required.
Readout directly on Amplifier.
Measuring Current: 19uA.
Ranges: 0.5kΧ-25kΧ.
Transducers:
Ear-Tone ABR insert phones included.
Independent calibration for TDH39 (TDH29 not included).
Number of Channels:
2 channel response detection. (EPA3: 1 channel).
8 channels for stimulus control
Test Protocols:
Test protocols included for children and for awake adults.
Customized protocols can be created by user.
Stimuli:
500Hz, 1kHz, 2kHz, 4kHz
Bandwidth: +/- ½ octave -3dB. Very steep roll offs.
Compensation for cochlear delays
Simultaneous stimuli: 8 (4 frequencies in each Ear)
Modulation Rates:
90Hz and 40Hz.
Can be changed within the same session.
Masking:
White noise
0 – 100dB HL
Stimulus Control:
Independent control of up to 8 simultaneous stimuli (max. 4 per ear).
Independent stimulus level control for each of the 8 stimuli, with dynamic range assistance
Independent start / stop control for each of the 8 stimuli
Data Acquisition:
2 channels
Separate Detection Algorithm for each Channel
A/D resolution: 16bit
Manual Start and Stop: Global as well as for each Stimulus
Time out limits:
Max 15min. (Default: 6min.)
Manual change in +/- 1 min. steps.
False Pass Probability Settings: 1% and 5%
All manuals and user guides at all-guides.com
ASSR Instructions for Use – English
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