Operating Instruction
ERO•SCAN
®
Screening and Diagnostic Version
operating_instructions_8106556-6_EROSCAN_e_15a
12
8106556-5 02/15
8
Introduction
The purpose of the ERO•SCAN
®
test system is to provide a rapid measurement and
documentation of Distortion Product Otoacoustic Emissions (DPOAEs) or Transient Evoked
Otoacoustic Emissions (TEOAEs) at several frequencies.
The ERO•SCAN
®
is available as a Screening or Diagnostic version. Please see chapter 18 and
19 for further information.
8.1
How Does the ERO•SCAN
®
Device Work?
The system consists of the instrument,
Micro-Probe,
single-use
eartips,
replaceable probe tubes, and other
accessories. The ERO•SCAN
®
instrument
contains the hardware and software for
generating the test stimuli, measuring and
displaying the OAEs, and storing the
results until they are printed. The plastic
housing contains circuit boards that
provide the signal processing and
Display the test results. The instrument
also contains a rechargeable lithium-ion
battery to power the device. The
instrument uses an organic light-emitting
diode
(OLED) Display screen and three
light-emitting diodes (LEDs) to provide a
visual Display of test status to the
operator. Four membrane-type push
buttons located on the keypad of the
device allow the user to control testing
and printing, and to reset test protocols.
The Micro-Probe houses speaker and
microphone which produce test stimuli
and measure the sound pressure level
(SPL) present in the sealed ear canal.
Interface of the instrument to the ear
canal is accomplished through disposable
eartips, which fit onto the probe tube.
The disposable eartips are color coded to
facilitate easy selection by size.
User Interface
Buttons
Probe Connector
Micro-USB
Connector
Figure 1
Charge Status
Indicator
Display
Test Status
Indicators
Summary of Contents for ERO SCAN
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