OSCILLA SM960-C - Page 17

ID: 1614 / ver. 210
17
Measurement Range
Maximum Intensities:
White Noise: 110 dB (same for all frequencies)
Speech Noise: 115 dB (same for all frequencies)
Measurement Accuracy
Tolerance frequency: ± 1 %.
In/output impedance: Left / Right channel ~ 4,7- 144,7 ohm, Patient response ~ 1 Kohm
Distortion speaker: TDH-39: < 1 %, 4. and higher harmonic + sub harmonic < 0,3 %.
Single signal channel:
Air conductor: ± 4 dB (125 Hz – 4 kHz)
± 5 dB (6 kHz – 8 kHz)
Bone conductor: ± 4 dB (125 Hz – 4 kHz)
± 5 dB (6 kHz – 8 kHz)
Multiple signal channels: ± 1 dB (125 Hz – 4 kHz)
± 2 dB (6 kHz – 8 kHz)
Measurement Durations and Times
Data transmission: RS-232C protocol
Storage space: 17 audiograms
Frequency
Air Bone
Pure Tone Narrow Band Pure Tone Narrow Band
125
250
500
750
1000
1500
2000
3000
4000
6000
8000
Hz
Hz
Hz
Hz
Hz
Hz
Hz
Hz
Hz
Hz
Hz
80 dB
100 dB
120 dB
120 dB
120 dB
120 dB
120 dB
120 dB
120 dB
110 dB
100 dB
70 dB
90 dB
110 dB
110 dB
110 dB
110 dB
110 dB
110 dB
110 dB
100 dB
90 dB
10 dB
40 dB
70 dB
70 dB
70 dB
70 dB
70 dB
70 dB
60 dB
50 dB
40 dB
0 dB
30 dB
60 dB
60 dB
60 dB
60 dB
60 dB
60 dB
50 dB
40 dB
30 dB