MA 1 Operating Manual
9
8100216-3
(D-0100192)
7.3.
Conducting the Test
Press the black right/left button to turn on the MA 1. Use this same button to select
the right (red LED) or left (blue LED) ear. Press the up or down arrow keys to select
20dBHL. Next press the 1 kHZ button to present the tone at 1kHZ to the patient. The
tone will be presented as long as the corresponding frequency key (i.e .5, 1, 2, or 4
kHZ) is held down. If the patient does not respond to the tone, increase the tone by
5dB using the up arrow key and present again. Continue to increase the tone by 5dB
until the patient responds. Once the patient responds, lower the tone by 10dB until
he/she does not respond. Continue in this “down 10dB/up 5dB” pattern until a
threshold is established, or screening protocol has been met. Continue the same
procedure for the other frequencies. Record all results on the audiogram card
provided.
Note: Most states define a normal hearing level for a pure-tone screening as 20dBHL.
However, it is highly recommended that you check with your state health department,
the American–Speech-Language-Hearing Association (ASHA), or the American
Academy of Audiology (AAA) for specific guidelines.
NOTE: An automatic power shutoff occurs after 30 seconds of inactivity with the
audiometer to conserve battery life. To turn the audiometer back on, press the black
right/left button.
