Tabla de contenido
Idiomas disponibles
Idiomas disponibles
93/42 classification
Notified body
Notified body number
Manual pure tone audiometry, Automatic pure tone audiometry (Fixed intensity,
Screening, Houghson Westlake)
Stimulus
Masking
Attenuators step
Presentation mode
Frequency accuracy
Intensity accuracy
Total Harmonic Distortion
(THD)
Warble tone
NBN
WN
Type
Supra-aural headphones
Circum-aural headphones
28
CE CERTIFICATE
Class IIa, Rule 10
TÜV SÜD Product Service GmbH
Ridlerstrasse 65, D-80339 Műnchen
0123
AVAILABLE TESTS
AVAILABLE SIGNALS
Pure tone, Warble
Narrow-band noise (NBN), White noise (WN)
SIGNAL SPECIFICATIONS
5 dB
Continuous, Pulsed (rate: 0.5Hz 1Hz, 2Hz)
0.1%
±3 dB between 125Hz and 4kHz
±5 dB above 4kHz
AC: less than 2.5%
BC: less than 5.5%
Frequency of the modulating signal: 5Hz
Modulation waveform: sine wave
Modulation range: ±12%
Band: ½ octave, i.e.:
-
lower cut-off frequency
-
upper cut-off frequency
where �� is the center frequency
Lower cut-off frequency: 100Hz
Upper cut-off frequency: 24kHz
COMPATIBLE TRANSDUCERS
Manufacturer
Radioear Corp.
Radioear Corp.
��
= ��/1.1892
��
��
= �� ∗ 1.1892
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Model
DD45
DD65
Tabla de contenido
