The Audiometer Option 185
Set up the client for testing as described in Section 7.3, but also use the earhook
and insert a probe microphone in his or her ear. See Section 9.2.4 for more
details.
Now, follow the procedure described in the previous section. As you present
a tone, the output in dB SPL is displayed under MIC SPL at the bottom of the
screen.
7.4.3 Measurements in Gain
To obtain measurement in dB Gain while performing audiometric measure-
ments, follow the instructions in 7.4.2, but also turn REF MIC (SPEAKER) ON
in the Menu. This will display results in dB GAIN at the bottom of the screen
instead of the dB SPL.
7.5 Output Limitations
The minimum presentation level of the FP35 for both sound field speaker and
insert earphones is 10 dB HL.
The maximum output of the sound field speaker is determined by the distance
from the client to the speaker and the selected frequency. The maximum output
of the insert earphones depends upon the insert earphone used and the selected
frequency.
If you try to present a tone exceeding the minimum or the maximum output at
the selected frequency, an error message will pop up.
