Micro Audiometrics Earscan Operating Manual

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START UP
1. Insert headphone plug into side panel "phone" location.
2. Insert patient response button plug into side panel
"button" location.
3. Plug unit into grounded outlet.
4. Press rocker switch on back panel to "on" position. After
Earscan does a brief system check you are ready to
begin testing.

SETTING PARAMETERS

Allows frequency and stimulus selection. Test parameters
will default to factory pre-set levels when power is shut off.
1. Press <MAN> and hold until "AUDIOMETER SET-UP
MODE" appears on LCD.
2. Press <DISP> to observe keys operating function.
Press <DISP>. Use <Hz⇐ ⇐ ⇐ ⇐ ⇐ > and <Hz⇒ ⇒ ⇒ ⇒ ⇒ > to select
3.
frequency.
Press <TONE> to include frequency.
Press <CLEAR> to remove frequency.
Press <AUTO> to set starting frequency.
4. Press <DISP> to access stimulus range programming.
Press <Hz⇐ ⇐ ⇐ ⇐ ⇐ > to select minimum stimulus range. Toggle
<dB⇓ ⇓ ⇓ ⇓ ⇓ > and <dB⇑ ⇑ ⇑ ⇑ ⇑ > to set the desired minimum dB level.
Press <Hz⇒ ⇒ ⇒ ⇒ ⇒ > to select maximum stimulus range. Toggle
<dB⇓ ⇓ ⇓ ⇓ ⇓ > and <dB⇑ ⇑ ⇑ ⇑ ⇑ > to set the desired maximum dB level.
5. Press <MAN> to save parameters; exit programming
mode.
PATIENT SET-UP
1. Seat patient so the front panel of the audiometer cannot
be seen by the patient.
2. Place headphones securely over ears, making sure red
phone covers right ear and blue phone covers left ear.
3. Instruct the patient to listen for either a continuous tone
or a series of beeping sounds. He should raise his
hand on the same side the sound is coming from.
the patient response button is used, the patient should
press and release the button whenever a sound is
heard.
MANUAL TESTING
1. Press <DISP>, then press and hold <CLEAR> until NEW
TEST appears.
2. Press <RIGHT/LEFT> to select test ear.
3. Increase and decrease frequency using the Hz keys.
4. Increase and decrease dB level using the dB keys.
5. Press <TONE> to present stimulus.
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AUTOMATIC TESTING
1. Follow steps 1 and 2 of manual testing.
2. Press <AUTO>.
3. Earscan will determine and store thresholds for each
frequency. Earscan will signal the completion of testing
by presenting a series of tones.
HAND-RECORDING RESULTS
1. Press <DISP>. Repeated pressing toggles results on LCD.
2. Record test results on audiogram pad.
O = right ear
X = left ear

IMPORTANT NOTES

1. Rerun any test if the results are in question.
2. DO NOT swap headsets among units. Each Earscan is
calibrated to match a particular headset. The last digits
of the Earscan serial number are engraved on each
headphone label.