Operation Manual MA 42
8100460 Rev.7 Ver.1
42
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Use the MODE button (18) to switch between tone and speech mode.
7.2.2
Tone Audiometry
Frequency Selection
Use one of the two sets of frequency keys (4) or (5) to select the frequency.
The maximum and minimum frequency depends on the receiver you have
selected.
Warble Tone
Press the Test signal button (12) to activate the warble tone. The LED will
highlight Warble.
Pulse Tone
Press the Test signal button (12) to activate the pulse tone. The LED will
highlight Pulse.
Overthreshold Tests
Press the Test mode button (13) until OT Tests is selected. The functional
selector buttons below the display will show the available over threshold tests.
The selection of OT tests include the Decay test (9), SISI test (11), ABLB test
(13), and MLB test (15). Select the left or right ear and adjust the parameters.
For the Decay or SISI test press the Start button (19) on the right side of the
display to start the test. Stop the test by pressing the Stop button (18) on the
right side of the display. To end the selected test, press the Exit button (6) on
the left side of the display.
Tracking Function
Press the Track key (14) to activate tracking. Both channels will change level
when only one attenuator is adjusted.
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