otometrics Madsen Xeta, Reference Manual

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Auto Threshold
Selects the Automatic Threshold test. For a description, see Automatic Air Conduction testing ► 12 .
When activated, the button flashes to indicate that you have selected the test, or that the test has been
paused by the user, by faulty responses or by talk-over.
Auto Screening
Selects the Automatic Screening test. For a description, see Automatic Screening
►
13 .
When activated, the button flashes to indicate that you have selected the test, or that the test has been
paused by the user, by faulty responses or by talk-over.
More (tests)
Press to see the optional test types. Press the desired function key to select.
For a description of the additional tests, see
•
SISI (Short Increment Sensitivity Index) ► 74
• The Stenger test ► 77
• ABLB (Alternate Binaural Loudness Balance) ► 76
These tests are optional. To add any of these tests to your configuration, contact your local supplier.
3.2.5 Signal indicators
The indicators are located on either side of the display. They light up when the selected test signal is presented
in the corresponding ear.
•
Discreet mode
In the Auto Threshold and Auto Screening tests you can change the setting of the signal indicators to
Dis-
creet mode
, which means that they do not light up when the test signal is presented. If MADSEN Xeta is in
view of the patient, this will prevent the patient from knowing when a signal is presented.
This mode also prevents the patient from simulating hearing, because the stimulus level is hidden during
the automatic test.
3.2.6 Extended Range
Enables presentation of stimuli above the safety limit (approx. 100 dB). The safety limit is set to 20 dB
below the maximum dB HL for a given transducer and frequency.
Note
• Automatic testing is always limited to 100 dB HL.
Extended Range has 2 modes (to select, see Extended Range ► 61 ):
•
Auto
All levels at all frequencies are always accessible, but the Extended Range button will start flashing when a level above
100 dB HL is reached.
• Manual
The first time extended range above 100 dB HL is reached after patient change or ear change, press the Extended
Range button once to allow for access to any level at any frequency with any selected manual test and signal type
Otometrics - MADSEN Xeta 19
3 Overview of MADSEN Xeta