Operation Manual MA 33
8100092 Rev. 9
37
19/08/2019
Figure 42
Default setting: right channel is set to air conduction pure tone and the left channel is
inactive (i.e.
OFF
is displayed until the channel is turned on). The frequency is
automatically set to 1 kHz. (Any of these settings may be changed by using the mouse or
keyboard shortcuts.)
Select the ear to be tested either by mouse click or by pressing R (right ear) / L (left ear)
on the keyboard.
The volume can be changed using the ↑↓ cursor or with the mouse.
The volume is displayed as markers in the audiogram, as well as numerical values above
and on the outer sides of the audiograms.
The measuring frequency can be adjusted using the
← →
cursor or per mouse click.
The left click lowers the frequency, while the right increases it.
Test through the frequencies: start at 1 kHz; set the higher frequencies first then the lower
frequencies.
Select the next frequency, increase the level again and proceed with presenting the test
signal as described above.
Once a threshold value has been established, record the measured value by pressing the
(
Enter
key) or use the centre mouse button. The appropriate symbol will be plotted on
the audiogram.
Once all frequencies have been tested, choose the less capable ear and repeat the hearing
threshold test. After the patient presses the patient response switch (the audiogram for the
left channel highlights blue, and the audiogram for right channel highlights red), confirm the
response by either pressing the
Enter
key or the center mouse button.