AmpliVox 240 - Specifications of the Model 240 Audiometer

Page 18 OM024-6 Model 240 Operating Manual
5 Specification
5.1 Output data
Outputs: Left earphone, Right earphone, Bone (L&R) and
Insert masking
Frequency range (Hz): Air: 125-8kHz
Bone: 250Hz-8kHz
Frequency accuracy: <1%
Distortion: <2%
Output level range (AC): -10dBHL min; see Section 5.2 for maximum
Output level range (BC): -10dBHL min; see Section 5.2 for maximum
Insert masking output: 90dBHL max (250-4KHz)
Output level accuracy: Within 3dB
Output level step size: 5dB
Output transducer (AC): DD45 earphones; insert earphones E-5A
Tone present: Single, warble or pulsed
Masking: Narrowband
Communication: Integral talk over facility
USB interface: Transfer of test results to a computer
5.2 Maximum hearing levels provided at each frequency
Frequency,
Hz
Air conduction, dBHL
(DD45)
Bone conduction, dBHL
(B-71)
125
80
-
250
100
45
500
115
60
750
120
65
1000
120
70
1500
120
70
2000
120
70
3000
120
70
4000
115
70
6000
110
50
8000
100
40