8
Technical specifications
Type identification
AURICAL HIT is type 1082 from GN Otometrics A/S.
Acoustic stimulus generation
In closed test chamber
Frequency response, re. 1 kHz, main loud-
speaker (equalized)
125 to 200 Hz: ± 3.0 dB
200 to 2000 Hz: ± 1.5 dB
2000 to 5000 Hz: ± 2.5 dB
5000 to 10000 Hz: ± 3.0 dB
Frequency response, re. 1 kHz, rear loud-
speaker (equalized)
125 to 10000 Hz: ± 3.0 dB
Maximum output level, main loudspeaker 90 dB SPL (pure tone), 78 dB SPL (speech)
Harmonic distortion, acoustic tone out-
put, main loudspeaker
Less than 0.5 % up to 70 dB SPL, Less than 2.0 %, 70-90 dB SPL
Acoustic measurements
Frequency range, coupler microphone
(equalized)
125 to 200 Hz: ± 3 dB
200 to 5000 Hz: ± 1 dB
5000 to 10000 Hz: ± 3 dB
Battery simulator
Voltage range
0 to 2.0 V
Resolution, voltage
0.02 V
Accuracy, voltage
± 0.05 V
Output impedance range
3 to 10 ohm
Resolution, impedance
0.1 ohm
Accuracy, impedance
± 5 %
Current measurement range
0.5 to 40 mA
Current measurement accuracy
± 5 %
Tele coil
Max. field strength
31.6 mA/m
USB port connector
Type:
USB device port, type B
Interface:
USB 2.0
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Otometrics - AURICAL HIT
8 Technical specifications
