Sonova Unitron TrueFit 5.4 User manual

A Sonova Brand
Unitron TrueFit 5.4
User Guide
Unitron TrueFit 5.4 fitting software will henceforth be referred to as “Unitron TrueFit” or “the fitting
software” or “fitting software.”

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Contents
Structure and Navigation............................................................................................................................. 3
Preparing the Hearing Aids .......................................................................................................................... 4
Client Menu .................................................................................................................................................. 5
Instruments Menu........................................................................................................................................ 5
Fitting Menu ................................................................................................................................................. 8
End Fitting Menu ........................................................................................................................................ 10
Insights Menu .............................................................................................................................................11
Curve Display Options................................................................................................................................12
Main Menu ................................................................................................................................................. 12
Important Safety Information ................................................................................................................... 13
Compliance Information and Descriptions of Symbols............................................................................. 16
System requirements .................................................................................................................................18

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Structure and Navigation
The navigation of the fitting software generally flows from top to bottom and left to right.
Main Menu Options
File.................................
Import Client
Export Client
Print
Send Getting Started Email
Software Updates
Save
Close Session
Close Unitron TrueFit
Forms............................. Repair Form
Remake Form
Loss & Damage Form
Online Order Forms
Online Repair Forms
Hearing Instrument........ Save
Test Mode
Verification Mode
HI Update
HI Repair / Reset
Transfer Fitting
Delete Wireless Pairing
Options.......................... Preferences
iCube Configuration
Accessory Firmware Update
Change uDirect 2 Language Pack
Help................................ Online Help & Support
Instruction Guides
Training Session
Contact Us
Unitron Website
Support
FDA Software Labeling (USA only)
About DSL v5
About Unitron TrueFit
Toolbar
The toolbar is located at the top right corner of the application. The icon functionality is as follows:
Print
Save
Undo
Redo
Update
Quick View Pane
Located in the top right corner, the Quick View Pane displays information about the status of the
hearing instrument fitting. Each tab contains additional information about a specific section and can
expand by clicking on the plus sign.
Client tab
Overview of key client information
Connection tab
Connection status of hearing instrument(s)
Alerts tab
Lists all help and alert messages that have occurred during the current fitting
Client View tab
Allows display of client-oriented screens on a second monitor while using
the fitting software

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myUnitron Setup
Located left of the Tool Bar on the main menu, is a link allowing you to sign-in to your myUnitron
account. Once you have signed in, your username will be displayed. Click it to sign out (your username
will be remembered).
Recalculate
Click the Recalculate button in the upper right of the screen to see all the pending changes
and the recalculation options. It will recalculate the fitting based on data, such as the current
audiogram, fitting formula, and hearing instrument acoustics. The default recalculation
options vary depending on the pending changes.
The Recalculate button will be highlighted when a recalculation is recommended during fitting.
Mute / Unmute
Indicates the current state of the hearing instrument(s):
muted or unmuted. Mute / Unmute can be selected
individually for each device or binaurally by clicking the center of the button. The center of the button
also displays the currently active environment for the hearing instrument(s).
Fitting Mode
The fitting mode can be changed by clicking on the button and selecting the desired setting from the
dropdown box. When client information is entered and the age is 18 years or less, the fitting software
will automatically prompt you to select the appropriate fitting mode option via a pop-up window.
Fitting mode defaults can be edited under Options > Preferences > Fitting Session > Pediatric Modes.
Preparing the Hearing Instruments
Noahlink Wireless™
Switch the hearing instrument(s) on by inserting batteries and closing the battery doors or, if the hearing
instrument(s) are rechargeable, press and hold the lower part of the button on each of the hearing
instrument(s) for 3 seconds until the indicator light changes to solid green. This will also place the units
in pairing mode, which lasts for 3 minutes.
If connecting to hearing instrument(s) that are not saved in the current session, the hearing
instrument(s) must be in pairing mode. If connecting to hearing instrument(s) that are already saved in
the current session, the hearing instrument(s) do not need to be in pairing mode.
NOAHlink™ / HI-PRO®
BTE/RIC: Open the battery door and insert the programming cable into the programming port. Connect
the other end of the cable to the NOAHlink or HI-PRO.
ITE: Remove the battery door and insert the programming cable. Connect the other end of the cable to
the NOAHlink or HI-PRO.

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iCube II
When using iCube II for the first time, you will need to configure the fitting device. Select Options >
iCube Configuration and follow the on-screen instructions. Insert batteries into the hearing
instrument(s) and close the battery door. Either place the hearing instrument(s) inside the iCube II neck
loop on a desk or place the iCube II around your client’s neck and place the hearing instrument(s) on
your client’s ears.
Client Menu
Information
This screen shows the Client Summary, Session Summary and Accessories.
Audiogram
Click on the graph to add thresholds to the audiogram, or right click for additional options. The
transducer for audiometry can be selected from the dropdown menu. Additionally, measured Tinnitus
Match information can be entered at the bottom of the Audiogram screen.
RECD
This screen provides the option to enter real-ear-to-coupler difference (RECD) values or import them if
they already exist. If RECD values have not been measured, age-appropriate average values generated
by the selected fitting formula will be used. Click the Enter RECD button to enter RECD values.
REUG
This screen provides the option to enter real-ear unaided gain (REUG) values or import them if they
already exist. If REUG values have not been measured, age-appropriate average values generated by the
selected fitting formula will be used. To complete the REUG screen, enter the data for the appropriate
ear by clicking on the graph. Right clicking on the graph also provides the option to edit points. Select
Use Entered to use the REUG data entered in the graph for fitting formula targets or Use Average to use
age appropriate average REUG values.
Instruments Menu
Selection
The Selection screen provides the option to detect or simulate hearing instrument(s). To detect:
1. Choose the desired programming interface from the drop-down menu.
2. Click the Detect button to perform a detection. Ensure the hearing instrument(s) are prepared
for detection according to the ‘Preparing the hearing instruments section’ of this guide.
3. In cases where the data in the hearing instrument differs from that stored in the fitting
software, follow the prompts to select which fitting you would like to use.

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First Fit
The Initial Configuration workflow is optionally displayed when:
•A new client is being fitted for the first time with new hearing instrument(s)
•You select to Create New Fitting at the end of the Detect sequence.
When the workflow is launched, there are five steps you can navigate through.
1. Confirm technology level (FLEX:TRIAL devices only): View the differences in features between
the current and other available technology levels. Click Next to maintain the current level. If you
want to make a change, clicking Apply will launch the Change Technology Level workflow.
2. Confirm client information: Review the client’s date of birth, audiogram, and experience with
hearing instrument(s), i.e. First Time or Long Term. If you need to change the date of birth or the
audiogram information, select Cancel to make those changes. This will disconnect the hearing
instrument(s) and following a subsequent Detect, the Initial Configuration workflow will be
launched again.
3. Confirm device acoustics: Confirm the device acoustic settings with the option to change values,
if necessary.
4. Confirm initial configuration: First fit has been calculated and the hearing instrument(s) will
automatically be unmuted (the option exists to manually mute again). You have the option to
select the Fitting Formula, adjust the Adaptation Manager and launch the Feedback
Optimization workflow.
5. Initial configuration complete: Provides quick links to the most common follow-on actions within
the fitting software.
Technology Change
This screen provides access to FLEX™ functionality. Clicking on one of the technology level buttons will
launch the Change Technology Level workflow. Follow the on-screen instructions to change the
technology level of the connected hearing instrument(s). The workflow will provide the following
options:
•Transfer fitting: Transfers the program structure, frequency response, acoustics, Automatic
Adaptation Manager status and accessories in the current client session to the hearing
instrument(s).
•Create new fitting: Resets the hearing instrument(s) to the recommended defaults. Select your
desired option and continue through the steps in the workflow.
The data logging in the hearing instrument(s) will be lost during this process.
Acoustics
Configure items such as: coupling, venting, earhook, tubing, ear piece, and receiver type.
BTE and RIC hearing instrument(s)
•If you have ordered an earmold or cShell with an IntelliVent, enter the code and the fitting
software will automatically use the optimal venting

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•For BTEs select Regular Tube, Slim Tube or Power Slim Tube (if applicable):
oFor BTEs with Regular Tube (an Earhook), select Ear Piece and Vent size.
oFor BTEs with Slim Tube or Power Slim Tube, select Ear Piece, Vent size and Tubing
Length.
•For RICs select Receiver, Ear Piece, Wire Length (optional) and Dome Size (optional)
oWith some products, the fitting software automatically detects the receiver during
the detection process. Press the Check button to manually check that the fitted
receiver is the one you have selected in the fitting software.
Custom hearing instrument(s)
For custom hearing instruments, you can configure the vent. If you have ordered the custom
products with IntelliVent, the fitting software will automatically read the code and use the
optimal venting. With simulated fittings, you can select the shell and receiver type.
Accessories
This screen displays accessories which are compatible with the fitted hearing instrument(s). Select the
accessory and click on the include in fitting button to include the accessory in the fitting.
Pre-Fitting
Super / Ultra Power pre-
sets (if applicable)
Classic: little to no signal processing and no directionality.
Conventional: moderate signal processing and some directionality.
Current: advanced signal processing and directionality.
Fitting Formula Select your desired fitting formula: DSL v5 Adult, DSL v5 Pediatric, NAL-
NL1, NAL-NL2, and NAL-NL2 Tonal Language.
Processing Strategy With DSL v5 Adult or DSL v5 Pediatric, select your desired processing
strategy: WDRC or Linear. Selecting the other fitting formulas provides
the WDRC processing option only.
Tinnitus Masker Strategy Select your desired tinnitus masker signal strategy. The tinnitus masker
noise can be viewed and adjusted in the Fitting > Tuning > Tinnitus
Masker toolbox.
Frequency Compression
Strategy
Select whether to calculate the frequency compression strategy
independently for the left and right hearing instruments.
In Situ
Use the In Situ screen to assess hearing sensitivity and uncomfortable loudness levels via signals
generated by the hearing instrument(s). The In Situ measurement results can be used to define the
fitting formula targets.
Click on the Start In Situ button for the ear you would like to assess. Follow the In Situ workflow to
progress through the test.

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Fitting Menu
Tuning
On the Tuning screen, All Programs is always selected by default; this ensures that the relative
differences across all programs are maintained when making changes.
Settings can be adjusted by clicking on the applicable toolbox.
Adaptation Manager The Automatic Adaptation Manager is activated when the check box is
selected. The fitting software uses a proprietary calculation to
determine the starting adaptation manager setting and the adaptation
rate for the fitting.
Occlusion Manager Select the desired occlusion setting to address any occlusion related
complaints. This feature impacts all programs except the music
program by default. Select the checkbox to enable the occlusion
manager for music programs.
Bass Enhancer (if available) Select the desired setting to increase low frequency gain and MPO
(emphasis below ~ 1 kHz).
Soft / Mod / Loud Controls Select the frequency region(s) and input level to be modified. A range of
fitting values can be selected by either choosing a specific input,
channel grouping, or selecting All. To select multiple frequency regions
for adjustment, you can click and drag across the table. The scroll bar
along the bottom of the table allows you to view frequency regions that
are outside the visible area.
MPO / Gain / CR Controls Select the frequency region(s) and parameter type to be modified. If
available, TK soft speech can be used to adjust the gain for low level
sounds (this feature must be enabled in preferences before it can be
adjusted). To select multiple frequency regions for adjustment, you can
click and drag across the table. The scroll bar along the bottom of the
table allows you to view frequency regions that are outside the visible
area.
App Equalizer In follow up fittings, selecting a program will show the settings the
client has applied to that program via the app.
Frequency Compression Click the Enable Frequency Compression checkbox to activate this
feature. Depending on the product, you can adjust the frequency
compression to the desired setting using the More or Less buttons or by
adjusting the Audibility / Distinction and Consonant Clarity / Vowel
Quality sliders.
Fitting Advice
Select a specific situation and concern for recommended adjustments.

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Tinnitus Masker Click the Enable Tinnitus Masker checkbox to enable this feature. Click
the Use client control to adjust noise level checkbox to allow the client
to adjust the tinnitus noise level using their hearing instrument
controls. To select multiple frequency regions for adjustment, you can
click and drag across the table. The scroll bar along the bottom of the
table allows you to view frequency regions that are outside the visible
area.
Remote Adjust Click Start a Remote Adjust session to launch the Remote Adjust
workflow. You can also view the gain offset values for each of the
changes supported by the hearing instrument(s). These values are read
only.
Configure Features
Select the Configure Features screen to adjust adaptive parameters in the hearing instrument(s). Select
the program(s) to view and alter the values of the adaptive parameters.
Program Manager
This screen allows you to add or remove manual programs, copy programs, rename programs, change
program order, and assign easy-t / easy-DAI access (when applicable). To add a program manually, click
the arrow next to the appropriate program in the Available Programs section.
Feedback Optimization
Select the Feedback Optimization screen to run the feedback test. In cases where the environment may
have impacted the test (e.g., excess noise present), the results include a combination of measured
values and predicted feedback threshold values; the status then indicates Incomplete. Repeating the
test will replace any predicted values with measured values if they can be reliably obtained in the
current test environment. Once the feedback test is complete, the hearing instrument’s gain is limited as
shown on the graph where:
•Black line = feedback threshold
•Grey line = hearing instrument gain limit
•Green line = target gain for 50 dB pure tone input
•Red or Blue line = aided gain for 50 dB pure tone input
Automatic REM
Integrates an automated workflow for Real Ear Measurements (REM) with the Otometrics Aurical
FreeFit solution. The step-by-step workflow allows the real ear activities to be performed from within
the fitting software.

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End Fitting Menu
HI Setup
Select the HI Setup screen to configure the function of the user controls on the hearing instrument(s). In
addition, HI Setup provides access to other device parameters via toolboxes along the bottom of the
screen:
Bluetooth Edit the name of the hearing instrument(s) as seen by other Bluetooth
devices, enable/disable Adaptive Bandwidth, and select the primary ear
used for Bluetooth.
TV Connector Configure how the hearing instrument(s) will behave when they come
into range of a TV Connector.
Volume Settings
Choose the desired step size of volume control increase / decrease.
Startup Settings Select the desired Startup Program and Startup Delay. Enable / disable
the automatic behavior to turn on rechargeable hearing instrument(s)
when they are removed from the charger (if applicable).
Data Logging
Select the desired data logging behavior.
Program Toggle Exceptions
Select any programs to be excluded from the toggle sequence.
Tap Control Sensitivity If applicable, configure how firmly the client needs to tap on their
hearing instrument(s) to activate the tap control.
Beeps
Demonstrate and configure user notification beeps in the hearing instrument(s).
Beep Setup
Select the intensity and frequency of the beeps for each ear.
Beep Enabling
Deselect beep notification types to deactivate them for the client.
Trial Duration
(if applicable)
Shows the amount of time before the ‘End of trial period’ beeps are
generated in the hearing instrument(s).
Insights Setup
The Insights Setup screen provides an easy way to enable Insights for you and your clients. The first
steps are one time only activities to Sign in / Create your account and to enable Insights.
Following detection, hearing instrument(s) automatically allow Insights activation. Once you have saved
to the hearing instrument(s), the client can complete the setup process by selecting to ‘Activate’ Insights
when setting up their Remote Plus app (available for Bluetooth enabled hearing instruments). The next

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time you open a session for that client, you will see confirmation that activation is complete, enabling
Remote Adjust, Coach, and Ratings.
Fitting Summary
The Fitting Summary screen provides an overview of primary fitting-related items for the hearing
instrument(s). The table provides an opportunity for a final check of the fitting settings and general
status prior to ending the session. If desired, additional details can be viewed by clicking the More Info
button.
This screen also includes options to Send Email (auto-generates a getting started email of support
materials for the client), Print, Save, or Close Session.
Insights Menu
Overview
This screen provides a high-level view of the client’s usage, lifestyle, and experience with their hearing
instrument(s). The left-hand pane of the screen shows History (allows you to view the history from
previous sessions), Quick Links (buttons linking to commonly used features in follow up fittings), and
Difficult Situation Predictions (prediction of difficult ‘sound types’ that your client may be likely to
experience).
Usage (Data Logging)
This screen provides insights into how the client interacts with the hearing instrument(s). A graph in the
centre of the screen shows the percentage of time spent in automatic and manual programs. The table
provides information related to average usage and volume control adjustments across all programs. This
screen also displays the history from previous sessions, duration of client usage, and any ratings.
Log It All
This screen provides an overview of a client’s listening lifestyle. All the time spent in acoustic real-world
listening situations is classified by the hearing instrument(s) and mapped to the defined listening
environments.
History
View Log It All history from previous sessions.
Technology Level Comparison
Displays the current technology level and alternate levels available.
Scores Each technology level has two scores – one for Coverage and one for
Performance.
Coverage Screen Shows data from the hearing instrument(s) on how well a
technology level is optimized for the listening environments where
the client spends their time. The boxes below the bars show the
percentage of time the client has spent in each listening
environment.

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Performance Screen Select either High or Low under Listening Complexity.
For High Listening Complexity environments, Speech Direction
shows how well a technology level can manage speech from
different directions based on the client’s personal listening lifestyle.
For Low Complexity environments, Sound Awareness shows how
well a technology level provides awareness of speech and other
sounds around the client.
Feature List Displays the Feature Comparison dialog, allowing you to see a side-
by-side comparison of the features.
Ratings Icon Appears beside any environment or program that has ratings
associated with it. Click on the icon to view the ratings.
Ratings
This feature allows you to view the ratings and comments clients submitted using the app. The Timeline
View displays an overview of the positive and negative moment ratings of the client over time. The
Moment Ratings view displays the same client ratings grouped according to the situation selected by the
client for each rating.
Curve Display Options
All the curves displayed in the fitting software, aside from the Feedback Optimization graph, are based
on targets that are generated assuming a speech input. On any screen displaying a graph, change the
display by clicking the curve display icon above the upper right graph. Adjustments made here are
applied to both the left and right graphs.
Depending on the section of the fitting software, there are different options available for selection.
Main Menu
Main Menu options are outlined in the Structure & Navigation section of this guide. Below are some
details about a few of the menu items.
Verification Mode
Verification Mode can be found under Hearing Instrument > Verification Mode. This sets the hearing
instrument into a verification mode to allow testing without the interference of adaptive features. There
are 3 options:
•Adaptive features active: default state
•Real Ear Verification: all features disabled except Natural Sound Balance and input selection
•2cc Coupler Verification: all adaptive features and input selection are disabled

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Transfer Fitting
The Transfer Fitting workflow can be accessed through Hearing Instrument > Transfer Fitting. Transfer
Fitting assists with the transfer of a fitting to or from another hearing instrument.
Training Session
Training Mode is used to demonstrate the full functionality of each screen as if hearing instruments
were connected. Training Sessions can be accessed on the Main Menu under Help > Training Session.
You can select from several training scenarios which include a free-flow and scenarios with pre-defined
data.
Select a client and then create a training session. You can simulate the entire workflow of detecting
hearing instruments as well as tests such as the Feedback Optimization test. You can also simulate Data
Logging information including Log It All, if applicable. Training Sessions cannot be saved.
Important Safety Information
Unitron TrueFit fitting software is a medical device. As such, the use of this product carries some risk of
harm and so it is important that only properly qualified HCPs use Unitron TrueFit fitting software in
accordance with this user guide and that they understand and heed the warnings contained herein.
Intended use:
The standalone fitting software is intended to be used by qualified hearing care professionals to
configure, program, and fit hearing instruments to the intended person’s specific requirements.
This user guide provides a detailed introduction to hearing instrument fitting with Unitron TrueFit.An
electronic version can be obtained on unitron.com.
Intended user:
Qualified hearing care professionals.
Intended patient population:
The software is intended for patients with unilateral and bilateral, mild to profound hearing loss or in
combination with chronic tinnitus, who require the fitting of a hearing instrument. Tinnitus masker is
intended for patients from 18 years of age and above.
Indications:
Please note, indications are not derived from the fitting software, but from compatible hearing aids.
General clinical indications for the use of hearing aids and tinnitus masker are:
•Presence of a hearing loss
oUnilateral or bilateral
oConductive, sensorineural, or mixed
oMild to profound
•Presence of chronic tinnitus (only for hearing aids which offer tinnitus masker)

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Contraindications:
Please note, contraindications are not derived from the fitting software, but from compatible hearing
aids. General clinical contraindications for the use of hearing aids and tinnitus masker are:
•Hearing loss is not in the fitting range of the hearing aid (i.e., gain, frequency response)
•Acute tinnitus
•Deformity of the ear (i.e., closed ear canal, absence of the auricle)
•Neural hearing loss (retro-cochlear pathologies such as absent/non-viable auditory nerve)
The primary criteria for the referral of a patient for a medical or other specialist opinion and/or
treatment are as follows:
•Visible congenital or traumatic deformity of the ear
•History of active drainage from the ear in the previous 90 days
•History of sudden or rapidly progressive hearing loss in one or both ears within the previous 90
days
•Acute or chronic dizziness
•Audiometric air-bone gap equal to or greater than 15 dB at 500 Hz, 1000 Hz and 2000 Hz
•Visible evidence of significant cerumen accumulation or a foreign body in the ear canal
•Pain or discomfort in the ear
•Abnormal appearance of the eardrum and ear canal such as:
oInflammation of the external auditory canal
oPerforated eardrum
oOther abnormalities which the HCP believes are of medical concern
The HCP may decide that referral is not appropriate or in the best interests of the patient when the
following applies:
•When there is sufficient evidence that the condition has been fully investigated by a medical
specialist and any possible treatment has been provided.
•The condition has not worsened or changed significantly since the previous investigation and/or
treatment
•If the patient has given their informed and competent decision not to accept advice to seek a
medical opinion, it is permissible to proceed to recommend appropriate hearing aid systems
subject to the following considerations:
oThe recommendation will not have any adverse effects on the patient’s health or
general wellbeing
oThe records confirm that all necessary considerations about the patient’s best
interests have been made. If legally required, the patient has signed a disclaimer to
confirm that the referral advice has not been accepted and that it is an informed
decision.
Limit of use:
Unitron TrueFit fitting software usage is limited to fit and adjust compatible devices. Unitron TrueFit
fitting software is not intended for any diagnostic purpose.

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Compatible hearing aids:
Platform
Form Factors
Vivante
All released form factors
Blu
All released form factors
Discover Next
All released form factors
Discover
All released form factors
Tempus
All released form factors
North
All released form factors
Era
All released form factors
Shine Rev+
All released form factors
Shine Rev
All released form factors
Side effects:
Please note, side effects are not derived from the fitting software, but from compatible hearing aids.
Physiological side effects of hearing aids, such as tinnitus, dizziness, cerumen build up, too much
pressure, sweating or moisture, blisters, itching and/or rashes, plugged or fullness and their
consequences like headache and/or ear pain, may be resolved or reduced by your hearing care
professional. Conventional hearing aids have the potential to expose patients to higher levels of sound
exposure, which might result in threshold shifts in the frequency range affected by acoustic trauma.
Clinical benefit:
The benefit for the patient is that the fitting software provides the capability to set the hearing aid
setting to individual needs and to store them to the hearing aid. The benefit for the hearing care
professional is related to patient management.
Risks:
In the case of this fitting software, these risks manifest themselves through the hearing aids it is
intended to program. That is, the fitting software itself cannot directly harm either the user (HCP) or the
wearer of the hearing aids but its use (or misuse) can result in:
•wrongly programmed hearing aids being dispensed to patients, and/or
•harmfully loud sounds being delivered via hearing aids to patients during fitting sessions /
demonstration sessions.
These risks are extremely low, but both HCPs and wearers of hearing aids should be aware of them
nonetheless.
High MPO
The overall MPO of the hearing instrument exceeds 132 dB (ear simulator)

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High Tinnitus Masker noise level
Noise generator level in both hearing instruments exceeds 80 dB(A). Use caution in the programs
listed.
Receiver problem
The connected and the selected receiver are not identical. Select the correct receiver.
Wrong side information
The hearing instrument is configured for the opposite side. Allow change of side.
Test settings
Remove the hearing instruments from the client’s ears. Fitting data can be restored at the end of
the process.
Compliance Information and Descriptions of Symbols
Compliance information
Europe: Declaration of Conformity
Hereby Sonova AG declares that this product meets the requirements of the Medical Devices Regulation
(EU) 2017/745. The full text of the Declaration of Conformity can be obtained from the manufacturer:
https://www.sonova.com/en/certificates
The user guide is accessible via the [Help] function within the fitting software. The user guide for all
fitting software versions in all applicable languages in electronic form is accessible via webpage:
https://www.unitron.com/instr
To obtain a free paper copy of the instructions of use, please contact your local manufacturer
representative. A copy will be sent within 7 days.
Any serious incident that has occurred in relation to this product, should be reported to the
manufacturer representative and the competent authority of the state of residence. The serious
incident is described as any incident that directly or indirectly led, might have led, or might lead to any
of the following:
•the death of a patient, user, or other person
•the temporary or permanent serious deterioration of a patient's, user’s, or other person's state
of health
•a serious public health threat
Security notice
Patient data is private data, and its protection is important:
•Make sure your operating system is up to date
•Make sure your installed fitting software version is up to date
•Have the Windows user login activated, use strong passwords, and keep credentials secret

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•Use adequate and up-to-date malware and antivirus protection
Depending on national laws, you might be required to encrypt all patient data in order not to be held
liable in case of data loss and/or theft. You can use drive encryption (e.g., the free Microsoft BitLocker)
to protect all data on your PC. If working under Noah, consider using the Noah database encryption.
Make sure to keep data safe at all times. Please be aware that this listing is not exhaustive.
•When transferring data through unsafe channels, either send anonymous data or encrypt it.
•Protect data backups not only from data loss but also from theft.
•Remove all data from data medium which are no longer used or will be disposed.
Software maintenance
We are constantly monitoring feedback from the market. If you experience any issues with the latest
fitting software version, please contact your local manufacturer representative.
Descriptions of symbols
With the CE symbol, Sonova AG confirms that this product meets the
requirements of the Medical Devices Regulation (EU) 2017/745. The
numbers after the CE symbol correspond to the code of certified
institutions that were consulted under the above-mentioned regulation.
Name, address, date
Combined symbol “medical device manufacturer” and “date of
manufacture” as defined in in EU Regulation (EU) 2017/745.
Indicates the Authorized representative in the European Community.
The EC REP is also the importer to the European Union.
Indicates the manufacturer’s catalogue number so that the medical
device can be identified.
An indication that electronic instructions for use are available
Instructions can be obtained on the www.unitron.com website
This symbol indicates that it is important for the user to read and take
into account the relevant information in these user guides.
Provides further clarification about a feature or functionality.
Indicates a restriction in functionality or highlights important
information that requires your attention.
Indicates that something went wrong and requires correction in order
to continue.
HIMSA certification seal NOAHSEAL

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System requirements
Operating system
•Windows 10, 32 bit/64 bit, latest SP
•Windows 11
Processor
Pentium i5, 3 GHz or faster
RAM
8 GB or more
Hard disk space
4 GB or more
Screen resolution
Patient secondary display
resolution
1280 x 1024 pixels
1366 x 768 pixels
Graphic card
16 million (24bit) screen colors or more
Drive
for
manual software
installation
•DVD
•USB
Serial COM port
One for HI-PRO if used via serial COM port
USB ports
One for each purpose
•Bluetooth adaptor
•Accessory programming
•HI-PRO USB / HI-PRO 2 / iCube II / Noahlink Wireless
Programming interfaces
•iCube II
•NOAHlink / Noahlink Wireless
•HI-PRO / HI-PRO USB / HI-PRO 2
Noahlink driver
Latest version available
Noahlink Wireless driver
Latest version available
Internet connection
Highly recommended
Sound card
Stereo
Playback system
20 Hz – 14 kHz
NOAH version
Latest version (NOAH 4.4.2280 or higher)
Please check the NOAH limitations for Windows operating systems
on
http://www.himsa.com
Automatic REM
Noah Version 4.4.2280 or higher
Natus
®Otosuite 4.81.00 or higher
Natus Aurical FreeFit for REM & Aurical HIT for test box measurements
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19
CE mark applied 2023
028
-6716-02 V2.0/2023-04/sg ©2023 Sonova AG. All rights reserved
Sonova AG
•
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•
CH-8712 Stäfa
•
Switzerland
Sonova Deutschland GmbH
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70736 Fellbach-Oeffingen • Germany
058-5178-054
Unitron TrueFit 5.4
Unitron.com
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