AA222 Instructions for Use – US Page 17
Enters the impedance module, and adds or removes a tympanometry measure
to the protocol.
Enters the impedance module, and adds or removes an ipsi lateral or contra
lateral reflex test protocol.
Selects right test ear, and toggles between headset and insert earphone
transducers. Ensure the correct transducer (headset or insert phones) is
plugged in (back panel, 12). If the audiometer is only calibrated with one of the
transducers, the button cannot be used for toggling.
Selects left test ear, and toggles between headset and insert earphone
transducers. Ensure the correct transducer (headset or insert phones) is
plugged in (back panel, 13). If the audiometer is only calibrated with one of the
transducers, the button cannot be used for toggling.
Press this button to use the bone conductor for audiometry. First push selects
the right ear for testing, while the second push selects the left ear for testing.
The light above the button will indicate the ear selected.
Press ‘1 FF 2’ to select the free field speaker as output for Channel 1. First
push will present the sound through Free Field speaker 1, while second push
will present the signal through Free Field speaker 2.
Pressing this button once or twice enables toggling between pure tones or
warble tones during audiometry. The stimuli chosen will be shown on the
display, e.g.
Allows for presentation of speech material using wave files or a CD input. The
speech material must be installed and set up in the Speech settings.
When setup for CD, by pressing the function once or twice it is possible to
have recorded speech in either channel 1 or channel 2 separately.
If setup for CD, pressing this button for one second will allow for adjustment of
the gain output. Gain 1 using wheel (34) and gain 2 using wheel (38).
Mic allows for presentation of speech using the microphone. The VU meter can
be seen on the screen.
Adjust the microphone gain by pressing this button while adjusting the wheel
(34).
Monitor/TB activates the monitor and Talk Back (TB) for speech feedback from
the patient in the test cabin.
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