AmpliVox Otowave 102 User manual

Otowave 102
Operating Manual

ABOUT THIS MANUAL
READ THIS OPERATING MANUAL BEFORE ATTEMPTING TO USE THE INSTRUMENT.
This manual is valid for the Otowave 102 (applies from firmware version 1.0.0.072100 onwards –see System
Information screen).
This product is manufactured by:
Amplivox Ltd.
6 Oasis Park, Eynsham
Oxfordshire, OX29 4TP
United Kingdom
www.amplivox.ltd.uk
Amplivox Ltd.
10393 West 70th Street
Eden Prairie
MN 55344
www.amplivox.us
For all enquiries please contact us under:
Tel: [phone]
Fax: [phone]
[email protected]k

For supply in US only
Caution: Federal Law restricts this device to sale by or on the order of a licenced medical professional.

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D-0115690-C (OM001) –Otowave 102 Operating Manual
TABLE OF CONTENTS
1. Introduction..........................................................................................................................................................1
1.1. Thank you .....................................................................................................................................................................1
1.2. Intended applications ...................................................................................................................................................1
1.3. Features........................................................................................................................................................................1
1.4. Unpacking .....................................................................................................................................................................1
1.5. Standard contents and optional accessories................................................................................................................2
1.6. Warranty card (UK Customers only).............................................................................................................................2
1.7. Guarantee.....................................................................................................................................................................2
1.8. Warnings.......................................................................................................................................................................2
2. Important Safety Instructions ...............................................................................................................................3
2.1. Precautions...................................................................................................................................................................3
2.2. Electromagnetic compatibility (EMC) considerations ..................................................................................................3
3. Principles of Operation .........................................................................................................................................4
3.1. Compliance measurement............................................................................................................................................4
3.2. Tympanogram...............................................................................................................................................................4
3.3. Stapedial reflex measurement .....................................................................................................................................4
4. Using the Otowave................................................................................................................................................5
4.1. Installing & replacing batteries.....................................................................................................................................5
4.2. Operating language ......................................................................................................................................................5
4.3. Controls and indicators.................................................................................................................................................5
4.4. The probe .....................................................................................................................................................................6
4.5. Start-up and menu displays ..........................................................................................................................................7
4.6. Initial settings ...............................................................................................................................................................7
5. Taking measurements...........................................................................................................................................8
5.1. Prior to testing and Ambient conditions ......................................................................................................................8
5.2. Ear tip(s)........................................................................................................................................................................8
5.3. Performing a test ..........................................................................................................................................................8
5.4. Ear seal check .............................................................................................................................................................12
5.5. Error messages ...........................................................................................................................................................13
6. Configuration ......................................................................................................................................................14
6.1. Sweep Settings ...........................................................................................................................................................14
6.2. Reflex options.............................................................................................................................................................14
6.3. System Settings...........................................................................................................................................................16
7. Saving Results in the Internal Database ..............................................................................................................17
7.1. Data entry...................................................................................................................................................................17
7.2. Database full...............................................................................................................................................................17
8. IrDA Communications .........................................................................................................................................18
9. Transferring the Results ......................................................................................................................................19
9.1. Sending the results to a printer ..................................................................................................................................19
9.2. Data transfer to NOAH or ampliSuite .........................................................................................................................19
10. Data Management ..............................................................................................................................................20
10.1. List records .................................................................................................................................................................20
10.2. Delete records ............................................................................................................................................................21
10.3. Print records ...............................................................................................................................................................21
10.4. Send records to a computer .......................................................................................................................................21

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D-0115690-C (OM001) –Otowave 102 Operating Manual
11. Performing Daily Checks .....................................................................................................................................22
12. System Information ............................................................................................................................................23
13. Routine Maintenance .........................................................................................................................................24
13.1. Cleaning the Otowave ................................................................................................................................................24
13.2. Ear tip and Probe ........................................................................................................................................................24
13.3. Calibration and Repair of the Instrument...................................................................................................................24
14. Error Messages & Fault Conditions .....................................................................................................................25
15. Technical Specification........................................................................................................................................27
15.1. Performance ...............................................................................................................................................................27
15.2. Equipment classification.............................................................................................................................................28
15.3. Symbols.......................................................................................................................................................................29
16. Ordering Consumables and Accessories ..............................................................................................................30
17. Disposal Information........................................................................................................................................... 31
18. EMC Guidance & Manufacturer’s Declaration .....................................................................................................32
19. Use with Non-medical Electrical Equipment........................................................................................................36

INTRODUCTION
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D-0115690-C (OM001) –Otowave 102 Operating Manual
1. INTRODUCTION
1.1.THANK YOU
Thank you for purchasing an Amplivox Otowave 102, a hand-held, portable tympanometer that will
give many years of reliable service if treated with care. This operating manual covers product variants
102-1 & 102-4.
1.2.INTENDED APPLICATIONS
The Otowave 102 is designed for use by audiologists, general practitioners, hearing aid dispensers
and child health professionals.
The instrument performs two types of measurement:
Tympanometry is used to measure the compliance of the tympanic membrane and middle ear at a
fixed frequency over a range of pressures.
Reflex tests are used to measure stapedial reflexes. The Otowave measures ipsilateral reflexes
and, when selected, reflex measurement is automatically carried out after a tympanogram is taken.
1.3.FEATURES
Automatic measurement of ear canal volume, tympanic compliance peak, placement of the
peak and the gradient
Automatic detection of stapedial reflexes
Up to 30, dual-ear patient tests can be stored in non-volatile memory
Configurable settings for user preferences, held in non-volatile memory
Printout via an infrared (IrDA) link to one of two thermal printers that may be selected by the
user
Data transfer to a computer via an infrared IrDA link for storage viewing & printing using
either the Amplivox “ampliSuite” software or the NOAH application
English, French or German operating languages (user-selectable)
1.4.UNPACKING
Please check the contents of the shipping carton againstthe delivery note to make sure that all items
ordered have been included. If anything is missing, please contact the distributor who supplied your
instrument or Amplivox if you purchased direct.
Please retain the original shipping carton and packaging to transport the tympanometer for annual
calibration or repair.

INTRODUCTION
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D-0115690-C (OM001) –Otowave 102 Operating Manual
1.5.STANDARD CONTENTS AND OPTIONAL ACCESSORIES
STANDARD COMPONENTS
Otowave 102 Tympanometer
Set of disposable ear-tips
4 x 1.5 V ‘AA’ Batteries
Carrying case
Calibration certificate
Warranty card
OPTIONAL COMPONENTS
Additional sets of ear tips
Probe tip
80025921
Portable thermal printer
Seal (in probe tip)
80020091
Additional rolls of thermal printer
paper
Infra-red USB Adapter
Note: If the thermal printer has been purchased it should be charged for a minimum of 15 hours
before being used. Refer to the printer instructions for further details.
1.6.WARRANTY CARD (UK CUSTOMERS ONLY)
Please complete the enclosed warranty registration card and return it to Amplivox. This will enable us to
register your purchase, help with your enquiries and provide technical support.
1.7.GUARANTEE
All Amplivox instruments are guaranteed against faulty materials and manufacture. The instrument will be
repaired free of charge for a period of two years from the date of dispatch if returned, carriage paid, to the
Amplivox service department. Return carriage is free of charge for customers in the UK and chargeable for
overseas customers.
The following exceptions apply:
The pressure pump and transducers may go out of calibration due to rough
handling or impact (dropping)
The lifetime of probe, probe seals and ear tips is dependent upon conditions of
use. These parts are only guaranteed against faulty materials or manufacture.
1.8.WARNINGS
Throughout this manual, the following meanings of warnings and cautions apply:
The WARNING label identifies conditions or practices that may present danger
to the patient and/or user.
The CAUTION label identifies conditions or practices that could result in damage
to the equipment.
1
Applied part as according to IEC 60601-1
WARNING
WARNING
CAUTION

IMPORTANT SAFETY INSTRUCTIONS
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D-0115690-C (OM001) –Otowave 102 Operating Manual
2. IMPORTANT SAFETY INSTRUCTIONS
The Otowave 102 instrument must be used only by practitioners qualified to perform
tympanometric tests. It is intended for transient use as a screening and diagnostic tool;
however no surgical or medical procedure should be undertaken solely on the basis of
results obtained from the instrument.
2.1.PRECAUTIONS
READ THIS OPERATING MANUAL BEFORE ATTEMPTING TO USE THE INSTRUMENT
The tympanometer is for indoor use only and should be used only as described in this manual.
Refer to the precautions specified in Section 4.1 regarding the use of batteries.
Before the first use of the instrument each day, or if suspect or inconsistent results are apparent, the checks
specified in Section 0must be carried out. If these do not give the results specified, the instrument must not be
used.
Never insert the probe into a patient’s ear canal without a suitable ear tip fitted to the probe.
Use only the recommended disposable ear tips . These are for single use only - that is, each ear tip is intended
to be used once only for a single ear for a single patient. Do not reuse ear tips as this will pose the risk of ear-
to-ear or patient-to-patient cross-infection.
Do not immerse the unit in any fluids. See Section 13of this manual for the proper cleaning procedure for the
instrument and its accessories and the function of single-use parts.
Do not use the instrument in an oxygen-rich environment or in the presence of a flammable anaesthetic mixture
or other flammable agents.
Do not drop or otherwise impact this instrument. If the instrument is dropped or damaged, return it to the
manufacturer for repair and/or calibration. Do not use the instrument if any damage is suspected.
The instrument must be stored and used indoors within the specified temperature, pressure and humidity
ranges, see Section 15.
As with all instruments of this nature the measurements taken will be influenced by significant changes in
altitude & pressure. The Otowave 102 tympanometer must be re-calibrated at the intended operating elevation
if it is to be used at elevations greater than 1000m above mean sea level.
Do not attempt to open, modify or service the instrument. Return the instrument to the manufacturer or
distributor for all repair and servicing requirements. Opening the instrument will void the warranty.
2.2.ELECTROMAGNETIC COMPATIBILITY (EMC) CONSIDERATIONS
Medical electrical equipment needs special precautions regarding EMC and needs to be installed and put into
service according to the EMC information in Section 18. This provides guidance on the electromagnetic
environment in which to operate the instrument.
Portable and mobile radio-frequency (RF) communications equipment can affect medical electrical equipment.
The instrument should not be used adjacent to or stacked with other equipment; if this is unavoidable the
instrument should be observed to verify normal operation.
WARNING

PRINCIPLES OF OPERATION
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D-0115690-C (OM001) –Otowave 102 Operating Manual
3. PRINCIPLES OF OPERATION
Please note: This operating manual is not intended as a training manual for tympanometry. The reader should
consult standard audiology texts for the theory and application of the screening tests provided by this
instrument.
3.1.COMPLIANCE MEASUREMENT
The Otowave 102 measures the compliance of the tympanic membrane and middle ear by playing a continuous
226Hz tone into the ear canal at a level calibrated to give 85dB SPL into a 2ml cavity. The sound level this
produces in the ear canal is measured using a microphone and the compliance calculated from the result. In
line with normal audiometric practice compliance is displayed as an equivalent volume of air in ml.
3.2.TYMPANOGRAM
To record the tympanogram the compliance is measured while the air pressure in the ear canal is varied from
+200daPa to -400daPa by means of a small pump. The compliance peaks when the air pressure is the same
on both sides of the tympanic membrane. The changing compliance with pressure is displayed as a graph.
3.3.STAPEDIAL REFLEX MEASUREMENT
Using the same principle it is also possible to establish whether a stapedial reflex is present. In this case, the
226Hz tone is used to measure the compliance of the ear, while a short tone at a different frequency is
presented (the reflex stimulus). The level of this stimulus is increased in steps until the stapedial muscles
respond causing the tympanic membrane to become stiffer, or a preset maximum level is reached. When the
change in compliance exceeds a predetermined threshold this constitutes a reflex and the change in
compliance at that level when the stimulus is applied is displayed as a plot against time.
The stapedial reflex is measured at the static ear canal pressure that produces the maximum membrane
compliance, so reflex measurements are taken after the tympanogram is measured when the peak compliance
pressure has been established.
The Otowave model 102-1 measures stapedial reflex at 1000Hz, while the model 102-4 measures at 500Hz,
1000Hz, 2000Hz and 4000Hz. The maximum level for the reflex stimulus may be preset, along with the step
size in dB between the three preceding lower levels of stimulus.

USING THE OTOWAVE
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D-0115690-C (OM001) –Otowave 102 Operating Manual
4. USING THE OTOWAVE
4.1.INSTALLING & REPLACING BATTERIES
The Otowave 102 may be powered from Alkaline ‘AA’ batteries or rechargeable Nickel-Metal Hydride (NiMH)
batteries . Four batteries are required. Do not mix battery types or old and new batteries.
If the Otowave is to be used infrequently the use of alkaline cells is recommended. NiMH batteries have a high
self-discharge rate and are likely to need recharging if left unused for several weeks.
Remove batteries from the instrument if it is not going to be used for more than a.
The type of cell fitted must be set in the CONFIGURATION menu. By default this is ALKALINE. Change the
setting in the CONFIGURATION menu (scroll to BATTERY TYPE as described in Section 0).
To fit the cells remove the battery compartment cover on the base of the tympanometer. Fit the cells as
indicated inside the battery compartment and replace the battery compartment cover.
Batteries should only be changed outside the patient environment. The operator should
not touch the battery connectors and the patient simultaneously.
A battery state indicator is shown in the top right corner of the display (except when showing test results).
This shows the battery state as a progressively emptying battery. The batteries should be replaced when the
symbol “!” appears next to the battery state indicator, or when advised to do so, for example at switch-on.
Changing the batteries does not affect the configuration, the contents of the database, the calibration settings
or the results of the last test.
Note that local regulations are likely to cover disposal of used batteries.
4.2.OPERATING LANGUAGE
To set the operating language (English, French or German) use the options within the CONFIGURATION
menu (see Section 0).
4.3.CONTROLS AND INDICATORS
Press the On/Off key momentarily to turn the Otowave on or off (refer to the diagram below).
Please note: This instrument is equipped with a real-time clock. Before use, please set the date & time
to local values in order to ensure that test data and calibration status are correctly identified. Refer to Section
0.
No warm-up time is required, although a short diagnostic routine will run for a few seconds. During this time
the internal pump will operate. To switch off, again press the On/Off key momentarily.
Press the up ▲ and down ▼ navigation keys to scroll through the menus or set values
Press the right navigation key ► to accept a menu choice or go to the next step.
Press the left navigation key ◄ to cancel an operation or go back to the previous step.
The function of the left and right keys is usually shown on the bottom line of the display.
When not performing a test the Otowave 102 will switch off automatically after 90 or 180 seconds if no key is
pressed (see Section 0to make this selection).
WARNING

USING THE OTOWAVE
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D-0115690-C (OM001) –Otowave 102 Operating Manual
The indicators show the status of the system. Typical indications during a measurement sequence are as
follows:
STATUS
LED A
LED B
Otowave turned off
Off
Off
Idle, test completed or test cancelled
On
Off
Insert probe or remove probe (refer to display for
details)
Flashing
(fast)
Flashing
(fast)
Ensure probe is held steady while an ear seal is
obtained
Off
Flashing
(slow)
Testing - tympanogram and/or reflex measurement
Flashing
(slow)
Off
For a full description of indicators used, messages displayed and possible error conditions refer to Section 14.
4.4.THE PROBE
1
Boss and Nut
Connection on probe body for attaching nose cone
2
Seal rubber
Gasket used to ensure air flow
3
Probe tip
Transparent probe tip housing the seal rubber
4
Nose cone
Top part of probe to securely fasten probe tip and seal rubber
Ear tip
Probe
Display
Navigation keys
On/off key
Indicators
1 2 3 4

USING THE OTOWAVE
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D-0115690-C (OM001) –Otowave 102 Operating Manual
The small holes through the Otowave probe tip must be kept clear. If these become blocked a warning
message will be displayed. The probe tip must be removed and cleaned or replaced.
To remove the probe tip, unscrew the nose cone and remove the probe tip from the boss. A small seal will be
found in the base of the probe tip. This should be examined and replaced if it is blocked or damaged. Do not
remove the nut securing the boss to the body of the instrument.
Please note: When replacing the probe tip, ensure that the seal is correctly located with the flat side
aligned with the flat side within the base of the probe tip. Push the probe tip over the boss and replace the
nose cone. Make sure that the nose cone is screwed home firmly but do not over-tighten. Do not use any tools
to tighten the nose cone.
After replacing the tip a Daily Check should be carried out (see Section 0).
Video available on how to clean the probe tip.
4.5.START-UP AND MENU DISPLAYS
When the Otowave 102 is turned on the start-up screen is shown while internal tests are performed and the
pump is initialised. When the start-up sequence is complete the MAIN MENU is displayed:
MAIN MENU
NEW TEST
CONFIGURATION
VIEW THE LAST TEST
Select
Use the navigation keys to scroll through and select menu options.
4.6.INITIAL SETTINGS
Use the CONFIGURATION options (see Section 0) to select the following options as required:
display contrast for ease of viewing
correct local date and time
date format (DD/MM/YY or MM/DD/YY)
correct battery type
power-off delay (90 or 180 seconds)
correct printer type (if used)

TAKING MEASUREMENTS
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D-0115690-C (OM001) –Otowave 102 Operating Manual
5. TAKING MEASUREMENTS
5.1.PRIOR TO TESTING AND AMBIENT CONDITIONS
A suitably-qualified health care professional should perform a thorough otoscopic examination to establish that
the condition of the ear is suitable for the test options selected and that no contraindications are present. The
latter would include obstruction of the external ear canal due to excessive wax and/or hairs, both of which
would need to be removed.
Tympanometric and reflex testing should always be performed in a quiet room or in an acoustic booth.
5.2.EAR TIP(S)
Video available on how to choose the right ear tip.
These must be selected and fitted by a practitioner qualified to perform tympanometric tests.
Please note: The probe tip must be fitted with a new ear tip before it is presented to a patient’s ear
canal. The ear tip must be fitted completely to the probe tip and must not occlude any of the four holes in the
probe tip. The ear tip size is chosen to suit the patient’s ear and provide a comfortable pressure seal.
Refer to Section 16 regarding these single-use parts.
5.3.PERFORMING A TEST
Please note: Ensure that the appropriate settings have been made before carrying out a test. See below
and the CONFIGURATION options in Section 0.
Having selected the required test settings a typical tympanogram measurement and reflex tests are
carried out as follows.
From the MAIN MENU select NEW TEST:
MAIN MENU
NEW TEST
CONFIGURATION
VIEW THE LAST TEST
Select

TAKING MEASUREMENTS
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D-0115690-C (OM001) –Otowave 102 Operating Manual
Select the ear(s) required for test:
SELECT EAR
BOTH: R, L
LEFT
RIGHT
Back  Select
The message “Deleting last test” will be displayed momentarily followed by a message to insert the probe into
the ear to be tested:
TESTING LEFT EAR
INSERT PROBE
Cancel
Present the ear tip to the ear and obtain a seal. If a good seal has been detected the following sequence of
messages will be seen
TESTING LEFT EAR
Equalising Pressure
Cancel
TESTING LEFT EAR
Pressure Settling
Cancel
Press ◄ at any time to cancel the test and return to the ear selection menu.
TESTING LEFT EAR
Seal Obtained 
Taking Tympanogram
Cancel
Once an adequate seal is detected the tympanogram measurement is made. This takes about 3 seconds. It is
important not to move the probe and to ask the patient to remain very still during the test.

TAKING MEASUREMENTS
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D-0115690-C (OM001) –Otowave 102 Operating Manual
When the tympanogram is complete the instrument will perform the reflex test(s), if selected. By default this
test is only performed if a peak is found in the tympanogram. This and other reflex test options may be changed
in the CONFIGURATION menu, see Section 0.
Before starting the reflex test the ear canal pressure will be set to the value that gave the peak compliance
during the tympanogram test. The instrument will then step through the tone frequencies and levels set in the
CONFIGURATION menu searching for a reflex response.
TESTING LEFT EAR
Seeking Reflex
1000 Hz 80 dB
Cancel
The display changes to show the frequency and level being used, starting with the lowest frequency and level
selected.
When the measurement is complete the indicator on the instrument changes from flashing green to steady
green. The display confirms that the test has been completed along with the instruction WITHDRAW PROBE.
Remove the ear tip from the patient and after a short period the tympanogram will be displayed.
The display shows:
The peak compliance, in ml (Pk)
The pressure which gave the peak compliance in daPa
The Gradient, in daPa (Gr)
The Ear Canal Volume (ECV) in ml measured at 200 daPa.
A pass/refer sign indicating if tympanogram appears to be normal or not
A plot of compliance against pressure.
Normative box (based on BSA recommendations)
Pass () / Refer (x) sign when tymp peak falls into normative box or not (refer)
Pressure cursor to be operated with up▲ and down ▼ navigation keys.
Review the tympanogram to ensure that the peak compliance point selected by the Otowave is suitable. If
required it is possible to select an alternative peak using the ▲ and ▼ keys. The figures displayed will change
to reflect the peak selected, and will be saved with the tympanogram.
To repeat the test, press ◄.
When satisfied with the tympanogram press ►.


TAKING MEASUREMENTS
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D-0115690-C (OM001) –Otowave 102 Operating Manual
If reflex test(s) were carried out these results will now be displayed:
The display shows:
The frequency and level of the reflex stimulus
“PASS” if a reflex was found, else “x” (No Response)
A plot of compliance against time
If the reflex test was performed at more than one frequency use the ▲and ▼keys to view the results for the
other frequencies.
If the Otowave 102 was set to test for a reflex at all levels of the stimulus press ► to view an additional display
following the reflex graphs. This shows a summary of the levels and frequencies at which a reflex was detected.
The dash symbol “-” is shown if a reflex tone was not presented at the level indicated.
REFLEX SUMMARY
dB
100 X-
90 X
80 X
70 XXX
Hz 500 1k 2k 4k
Press ◄ to return and view the tympanogram, reflex results or to repeat the test. When satisfied with the
results press ►.
The message “Saving as last test” will be displayed and the results will be saved in the “last test” memory. The
results will remain available until a new test is started, even if the Otowave is turned off.
If both ears were chosen for test the entire sequence will now be repeated for the right ear:
TESTING RIGHT EAR
INSERT PROBE
Cancel Skip
Press ► to skip testing of the right ear and display the PROCESS RESULTS menu. Press ◄ to cancel and
return to the ear selection menu. In both cases the left ear results are retained and may be viewed as the LAST
TEST.
Otherwise insert the probe; the right ear test will then proceed as described above.

TAKING MEASUREMENTS
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D-0115690-C (OM001) –Otowave 102 Operating Manual
When the selected ears have been tested and the results saved the PROCESS RESULTS menu will be
displayed. This accesses the following functions:
Print the results
Send the results to a computer
Save the results in the internal database
Review the results as described above
Return to the main menu
The results of the last test performed remain available even if the Otowave has been turned off. To view these
results select VIEW THE LAST TEST from the main menu. After selecting the required ear the tympanogram
will be displayed. It will then be possible to view the results and select the PROCESS RESULTS menu as if
the test had just been completed.
Please note: Results of the last test will be erased as soon as a new test is started. Test results should
be saved to the Otowave’s database, printed or sent to a computer to ensure that data is not lost.
5.4.EAR SEAL CHECK
The type of ear seal check employed at the start of a test can be set in the CONFIGURATION menu (Section
0). The default QUICK option is adequate for most tests, although it may not always be possible to generate
the extremes of pressure with this setting.
However if difficulty is experienced in using the ear tips to create a seal the alternative THOROUGH option
may be helpful. This checks that a range of pressures will be available before starting a test by means of a
visual indication of the quality of the seal:
TESTING LEFT EAR
Obtaining ear seal
Low :
High :
Cancel
The number of bars shown indicates the robustness of the seal. The probe should be adjusted in the ear until
two or more bars are shown for Low & High.

TAKING MEASUREMENTS
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D-0115690-C (OM001) –Otowave 102 Operating Manual
5.5.ERROR MESSAGES
The following error messages may be seen during the test sequence.
MESSAGE
DISPLAYED
INDICATOR
STATUS
LIKELY CAUSE(S)
WITHDRAW PROBE
Yellow Flashing
The probe has been moved during measurement.
Re-insert the probe to repeat the test.
Volume outside range
WITHDRAW PROBE
Yellow Flashing
The ear canal volume is above the 5ml. This
message can also occur when the probe is not
properly inserted into the ear.
Blocked ear
WITHDRAW PROBE
Green Flashing
The ear canal volume is below 0.1ml. Check that the
probe is not blocked and correctly inserted into the
ear.
INSERT PROBE
Yellow Flashing
The seal was lost. Reinsert the probe to repeat the
test.

CONFIGURATION
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D-0115690-C (OM001) –Otowave 102 Operating Manual
6. CONFIGURATION
6.1.SWEEP SETTINGS
Video available on how to add ipsilateral reflexes to test protocol.
ITEM
DESCRIPTION
DEFAULT
Test Sequence:
When testing both ears, define what ear side the test will start
with.
R, L
Ear Seal:
The STANDARD option is adequate for most tests, although it
may not always be possible to generate the extremes of
pressure during a tympanogram measurement with this
setting.
If difficulty is experienced in using the ear tips to create a seal
the alternative EXTENDED option may be helpful. This
function checks that a range of pressures will be available
before starting a test by means of a visual indication of the
quality of the seal.
The EXTENDED function is especially helpful if small ear canal
volumes should not experience excessive pressure.
Standard
Defaults:
Reset the sweep settings of theselected profile(s)to its original
settings.
6.2.REFLEX OPTIONS
Video available on how to add ipsilateral reflexes to test protocol.
ITEM
DESCRIPTION
DEFAULT
Level Mode:
Please note: Depending on the LEVEL MODE selection,
the LEVELS screen will contain different content.
ONE LEVEL: Use the S keys to choose the level of reflex
stimulus to apply. Only one level will be tested in the
measurement. The maximum level of ipsilateral stimulus may
be set to maximum 100dBHL; the maximum level of
contralateral stimulus may be set to 110dBHL.
MULTILEVEL: Use the S keys to choose the maximum level
of reflex stimulus to apply and the step size between the levels
of the preceding stimuli. The maximum level of ipsilateral
Multilevel

CONFIGURATION
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D-0115690-C (OM001) –Otowave 102 Operating Manual
stimulus may be set between 85dBHL and 100dBHL; the
maximum level of contralateral stimulus may be set between
85dBHL and 110dBHL.
Levels:
Use the ▲and ▼keys to choose the maximum level of reflex
stimulus to apply and the step size between the levels of the
preceding stimuli. The maximum level of stimulus may be set
between 85dBHL & 100dBHL. Press the ►key to confirm the
selection or the ◄key to cancel.
95 dB
5 dB steps
Frequencies:
Use the ▼key to scroll through the frequencies available for
each of the ipsilateral and contralateral stimuli (500Hz,
1000Hz, 2000Hz & 4000Hz), and then the ▲key to select ()
or deselect (-) the frequencies at which the reflex stimulus is to
be applied. Then press ►to save the entire selection.
1kHz ipsi
Selection:
Use the ▲and ▼keys to choose the circumstances when a reflex
measurement is to be made (always, never, only if a compliance
peak is found, or only after confirmation is made at the start of the
test sequence). In cases where a compliance peak has not been
established a pressure of 0daPa is used. Press the ►key to confirm
the selection or the ◄key to cancel.
Only if peak found
Threshold:
Use the keys to choose the change in compliance required to signify
that a reflex response has been detected (0.01ml to 0.5ml). The
default is 0.03ml.
0.03 ml
Auto-Stop:
By default the reflex test at each frequency will stop at the lowest
level of stimulus that produces a response. By setting REFLEX
AUTO-STOP to NO the Otowave 102 will test for a reflex at all
selected levels. (Note that 100dBHL at 4000Hz is not available).
No
Polarity:
Define the polarity of the reflex graphs, if the reflex is plotted
upwards (UP) or downwards (DOWN).
Up
Filter:
Use the keys to choose either 2Hz or 1.5Hz. The default of 2Hz is
suitable for most circumstances. However if a smoother reflex plot is
required for better interpretation 1.5Hz may be chosen.
2 Hz
Defaults:
Reset the sweep settings of theselected profile(s)to its original
settings.