otometrics MADSEN Midimate 622, Руководство пользователя

Страница: 26 / 102

2. Under Air are the 3 stimulus types available in this test: C, P and W,
which stand for Continuous, Pulsing and Warble. C is underlined
meaning that Continuous tone is the default setting.
Stimulus Types
Pressing Softkey 2 moves the cursor to the next letter enabling the
user to select stimulus type. Softkey 2
As stated in section 4.3, parameters such as Frequency, Intensity, Masking
(both on/off and intensity), and Stimulus Type are preset to default settings.
The status of the Tone Switch also varies from test to test-in Pure Tone
Audiometry, it is defaulted to “Off”, Normal Mode, i.e. a tone is presented
when the Tone Switch is pressed. In Speech Audiometry, the Tone Switch is
in Reverse Mode and functions as an interrupter, i.e. a tone is presented
continuously unless interrupted.
Tone Switch
The default settings are as follows:
Tone Audiometry Air: 1000 Hz, 20 dB, Masking off, Tone Switch off
Bone: 1000 Hz, 20 dB, Continuous Tone, HL Lock off,
(Audible) Patient Signal on
FF: 1000 Hz, 20 dB, Tone off, Warble Tone
Speech Audiometry Reverse on, Air off, 20 dB
Special Tests SISI: 20 dB, 1000 Hz, 5 dB increments
Fowler: 1000 Hz, 20 dB
Stenger: 1000 Hz, 20 dB, Tone Switch off, Continuous Tone
Rainville: 1000 Hz, 20 dB, Tone Switch off
NOTE: For all tests, attenuator resolution defaults to 5 dB. Please refer to
page 26 for information on how to select 1 dB resolution.
5 dB Resolution
Default
MIDIMATE 622 OPERATION MANUAL 4. Test Setup
20