Interacoustics AA222 User Manual

AA222 Instructions for Use – US Page 39
Function Key
Description
A
Use the tone switch (35) to present a sound to the client. The stimulus area will
light up when a sound is being presented.
B
This visualizes the dial setting of the stimulus intensity which can be changed by
rotating the wheel (34).
C
This visual indicator is shown when the patient presses the patient response.
D
The measurement type (HL, MCL, UCL or Tinnitus) is shown- as well as the
presentation type, e.g. Tone, Stenger, Weber. The test frequency is also shown.
E
This visualizes the dial setting of the intensity of channel 2, e.g. masking, which
can be changed by rotating the wheel (38).
F
The stimulus area will light up when a sound is being presented in channel 2,
e.g. when masking is active (33).
G
Indication of ear side and stimulus type for channel 1.
H
CPT (CPT AMA: Council on Physical Therapy American Medical Association) is
a weighed pure tone average for the frequencies 0.5, 1, 2, and 4 kHz according
to their importance for speech understanding.
PTA: Indicate the Pure Tone Average (PTA), set up in Tone settings.
Intensity scale
I
The intensity scale ranging from -10 to 120 dB HL.
Frequnecy scale
J
The frequency scale ranging from 0,125 kHz to 8 kHz.
Maximum output
K
The darker area indicates the maximum intensity range for the selected
transducer. The range can be extended by pressing the hardkey Ext. range (32).
L
The cursor in the audiogram visualizes the currently selected stimulus frequency
and intensity.
Speech banan
M
The speech banana indicates the area important for speech understanding.
Masking table
N
The masking table shows the intensity of the masker for the stored threshold.
O
Indication of ear side and stimulus type for channel 2.
P
The cursor in the audiogram visualizes the intensity and frequency of the
currently selected masking level.
Q
Press the “1,2,5 dB” button to toggle the dB step size. The current step size is
indicated on the label of this button.
R
Hold down the Meas.type button and use the wheel (34/38) to select the
threshold type – HL (hearing level), MCL (most comfortable level), UCL
(uncomfortable level), Tinnitus (tinnitus level).

Interacoustics AA222 Specifications

General

Brand	Interacoustics
Model	AA222
Category	Measuring Instruments
Language	English