Path medical Senti User manual

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User Manual
Senti & Sentiero

Manufacturer
PATH MEDICAL GmbH
Landsberger Straße 65
82110 Germering
Germany
Email [e-mail]
Telephone [phone]
Fax [phone]
Manual Information
Article number: 100904-EN
Release date: 2019-01
Revision: 0802_MA_Senti&Sentiero_Manual_EN_08-A1
Valid from: Firmware Rev. 2.5, Mira PC Software Rev. 2.0
All mentioned items, products, brands and trademarks are registered or owned by the mentioned
companies.
All information, illustrations, and specifications provided within this manual are based on the latest
product information available at the time of publication. PATH MEDICAL reserves the right to make
changes at any time without notice.
The latest revision of the user manual is available online at www.pathme.de/support.
Errors and omissions excepted.
Copyright Notice
No part of this manual may be reproduced, translated, stored, or transmitted, in any form or by any
means, electronic, mechanical, photocopying, recording, or otherwise, without the prior written
consent of PATH MEDICAL GmbH.
Copyright © 2019 PATH MEDICAL GmbH

Table of Contents
1 Overview.......................................................................................................................................... 5
1.1 Introduction............................................................................................................................. 5
1.2 Device Versions ....................................................................................................................... 5
1.3 Intended Use ........................................................................................................................... 6
1.4 Performance Characteristics ................................................................................................... 7
2 Explanation of Symbols ................................................................................................................... 9
3 Operational Concept ..................................................................................................................... 11
3.1 Screen Layout........................................................................................................................ 11
3.2 Online Help............................................................................................................................ 12
3.3 Test Result Status Icons......................................................................................................... 12
3.4 Device Hardware ................................................................................................................... 13
3.4.1 On/Off Switch................................................................................................................ 13
3.4.2 Device Reset .................................................................................................................. 13
3.4.3 Device Sockets............................................................................................................... 14
3.4.4 Charging the Device....................................................................................................... 15
3.5 Device Functions ................................................................................................................... 16
3.5.1 User Management......................................................................................................... 16
3.5.2 Patient Management..................................................................................................... 16
3.5.3 Device Settings .............................................................................................................. 16
3.5.4 Hardware Tests.............................................................................................................. 17
3.5.5 License Management .................................................................................................... 18
3.5.6 Demo Mode................................................................................................................... 18
3.5.7 System Information....................................................................................................... 18
3.5.8 Test Module Information .............................................................................................. 18
3.5.9 Error Handling ............................................................................................................... 19
3.6 Mira PC Software................................................................................................................... 20
3.7 PATH Service Tool.................................................................................................................. 21
4 Service and Maintenance.............................................................................................................. 23
4.1 General Service Information ................................................................................................. 23
4.2 Routine Maintenance and Calibration .................................................................................. 23
4.3 Repair .................................................................................................................................... 24
5 Cleaning......................................................................................................................................... 25
6 Accessories .................................................................................................................................... 27

7 Warranty........................................................................................................................................ 29
8 Notes on Safety ............................................................................................................................. 31
8.1 General Usage ....................................................................................................................... 31
8.2 Handling, Transport, and Storage.......................................................................................... 32
8.3 Electrical Safety ..................................................................................................................... 32
8.4 Electromagnetic Compatibility.............................................................................................. 33
8.5 Accessories ............................................................................................................................ 34
8.6 Waste Disposal ...................................................................................................................... 35
9 Technical Specifications................................................................................................................. 37
9.1 General Device Information .................................................................................................. 37
9.2 Device Characteristics ........................................................................................................... 37
9.3 Power Supply......................................................................................................................... 38
9.4 Storage, Transport, and Operating Conditions ..................................................................... 38
10 Electromagnetic Compatibility Information.............................................................................. 41

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1Overview
1.1 Introduction
Thank you for purchasing a Senti or Sentiero. This manual is your guide for safely operating and
maintaining your device.
Please read this manual carefully before using Senti or Sentiero the first time. We
recommend taking particular note of the safety (see section 8: Notes on Safety), intended
use (see section 1.3: Intended Use), cleaning (see section 5: Cleaning) and maintenance (see section
4: Service and Maintenance) instructions.
Senti and Sentiero are reliable, easy-to-use, and mobile medical devices. All devices provide easy
navigation via touch-screen and are intended for hearing examinations (see section 1.3: Intended
Use). Some of the mentioned firmware modules in this manual may not be included with your
license. Please contact your distributor if you would like to upgrade your license to include more
modules.
1.2 Device Versions
There are multiple versions available within the Senti and Sentiero device families.
HANDHELD DEVICES:
Senti and Sentiero with PCB revision ≥ 67 differ from Senti and Sentiero with PCB revision <67 in
extended internal memory (e.g. for speech tests). Sentiero Advanced differs from Sentiero in socket
layout and offers the additional ability to conduct acoustically evoked potential (AEP) tests. Sentiero
and Sentiero Advanced with PCB revision ≥ 70 offer the ability to conduct tympanometry and
acoustic reflex measurements when used together with the tympanometry add-on TY-MA (planned
for first quarter 2019).
Senti
(Model: SIH100097)
Sentiero
Including:
Sentiero
(Model: SOH100098)
Sentiero Advanced
(Model: SOH100360)

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DESKTOP DEVICES:
Senti Desktop and Senti Desktop Flex differ in sockets. Senti Desktop offers jack plugs and
is calibrated to a specific headphone and/or bone conductor. Senti Desktop Flex offers the
ability to exchange different calibrated transducers. Sentiero Desktop offers the same modules as
Sentiero together with the ability to conduct tympanometry and acoustic reflex measurements.
1.3 Intended Use
Devices of the Senti and Sentiero device families offer different test methods which can be
configured to fit the professional's needs for hearing screening or diagnostics. Devices of the Senti
device family provide multiple psycho-acoustic test procedures including conventional and image-
based pure-tone audiometry (e.g. Audio, MAGIC) and speech tests (e.g. SUN, MATCH). Devices of the
Sentiero device family additionally provide physiological test procedures including transitory evoked
otoacoustic emissions (TEOAE), distortion product otoacoustic emissions (DPOAE), auditory
brainstem responses (ABR; Sentiero Advanced only), auditory steady state responses (ASSR; Sentiero
Advanced only), and auditory impedance and acoustic reflex measurements (Sentiero Desktop,
Sentiero and Sentiero Advanced with tympanometry add-on).
Available psycho-acoustical methods on Senti and Sentiero are especially indicated for use with
cooperative patients starting at the age of two years or adequate development age, which enables
them to do play/interactive audiometry. All other physiological modules are suitable to be used for
all ages elder than infants from 34 weeks (gestational age) that are ready for discharge from the
hospital.
All physiological test methods are especially indicated for use in defining the type and configuration
of hearing loss particularly for individuals whose behavioral audiometric results are deemed
unreliable or to assist in the diagnosis of otologic disorders. Estimation of cochlear hearing thresholds
(DPOAE Threshold) is possible at various frequencies without the need of cooperative interaction
with the patient. Acoustic reflex and tympanometry are featured to evaluate the functional condition
of the middle and outer ear. For each method, several protocols can be configured. The results can
be used to make further recommendations regarding appropriate intervention strategies.
Devices of the Sentiero device family are intended for the following purposes:
Diagnostics, monitoring and follow-up after newborn hearing screening
Pre-school, school, and adult hearing screening
ENT diagnostics based on measurement of
a) Otoacoustic emissions
b) Tympanometry and acoustic reflex (Sentiero Desktop, Sentiero and Sentiero
Advanced with tympanometry add-on)
Senti Desktop
Including:
Senti D. (Model: SID100419)
Senti D. Flex (Model: SID100433)
Sentiero Desktop
(Model: SOD100497)

Page 7 / 44
c) Auditory Brainstem Responses (Sentiero Advanced only)
d) Auditory Steady State Responses (Sentiero Advanced only)
Senti and Sentiero are intended for use by audiologists, ear-nose-throat (ENT) doctors, and
other hearing health care professionals and audiologically trained technicians in a medical
environment. Please consider local regulations regarding the qualification requirements for
performing measurements with a specific test module.
Senti and Sentiero are not intended for operational use by the general public. All test
procedures must be supervised or conducted by qualified personnel. In the United States
of America, Federal law restricts this device to sale by or on the order of a licensed physician.
Senti and Sentiero are intended for indoor-use only and must be operated at defined
environmental conditions. See also operating conditions in section 9: Technical
Specifications and information about environmental conditions regarding electromagnetic
disturbances in section 10:Electromagnetic Compatibility Information. Senti and Sentiero are not
intended for use in oxygen-rich environments.
CONTRAINDICATIONS:
Senti and Sentiero must not be used in cases of external otitis (outer ear canal infection) or
in any case which yields to pain when inserting the ear probe or applying any other
transducer.
SIDE EFFECTS:
There are no known undesirable side effects for devices of the Senti and Sentiero device families.
See also section 8: Notes on Safety.
1.4 Performance Characteristics
All Senti and Sentiero devices are capable of producing acoustic signals which are transmitted to the
patient via an air or bone conduction transducer. All Sentiero devices are capable of recording
acoustic signals from the patient via an ear probe. Sentiero Advanced is capable of recording bio-
potential signals from the patient via an electrode. Sentiero and Sentiero Advanced with
tympanometry add-on TY-MA and Sentiero Desktop are capable of producing static air pressure. Test
result data is shown on the device display.
Essential performance of Senti/Sentiero devices includes general device operability, correct tone and
pressure presentation, correct signal data recording, and correct result display. Deterioration of
essential performance may result in a device not ready to work properly, in wrong audiological
diagnostics or in acoustic or pressure overexposure.
In order to preserve essential performance, routine maintenance is required (see section 4.2: Routine
Maintenance and Calibration).

Page 8 / 44

Page 9 / 44
2Explanation of Symbols
This section explains all symbols used within this manual and on the device label.
Symbols within this manual:
Symbol
Explanation
Important notice: please read for important information.
Warning: please read for safety-relevant information, which may cause risk of
danger to persons and/or device if not followed.
Symbols on the device label:
Symbol
Explanation
Consult instruction for use, i.e. this manual.
Serial number
Article number
Manufacturer name and address, production date
Compliance with applied part type BF (body floating) requirements
according to DIN EN 60601-1
Device with safety class II according to DIN EN 60601-1
Direct current input
The device is electronic equipment covered by the directive 2012/19/EC on waste
electrical and electronic equipment (WEEE). When discarded, the item must be
sent to separate collection facilities for recovery and recycling.
CE mark to declare conformity with medical device directive 93/42/EEC. The
number below the CE mark refers to the identifier of the notified body.
For further symbols, e.g. on accessory labels, please refer to the respective manual or data sheet of
the accessory. Important symbols may include:
Symbol
Explanation
Single use only. Do not reuse the respective item.
Expiration date. Do not use the respective item after the specified date.

Page 10 / 44

Page 11 / 44
3Operational Concept
After switching on the device, the device can be operated via a touch-sensitive display. In the
following the most important device functions and screen elements are explained.
Further information and details about the various test modules, potential clinical
applications and recommendations for combining several test procedures are explained in
the guide for practical application (How-To-Manual). You can download this document from
www.pathme.de/support.
Further technical details as e.g. maximum levels for the various test modules and for all
available transducers and specifications regarding test module parameters are described
in a separate Technical Specification document. You can download this document from
www.pathme.de/support.
Please note that screen shots or references to test modules in this manual may not reflect the actual
test configuration of your device.
3.1 Screen Layout
The device screen is in general split up in three sections (see Figure 1):
Figure 1: Device screen layout
①Header, including the following elements:
-Device time (e.g. 12:00)
-Screen-related information (e.g. selected patient name, selected test module/preset name)
-USB connection ( is shown if USB cable is connected to a PC)
-Battery status ( fully charged charging status indicator from empty to full)
①Header
②Main screen
③Footer

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②Main screen, including screen-related elements (e.g. test module list, patient list, test data result view)
③Footer, including control elements (e.g. for browsing to different screens) and online help (see section
3.2: Online Help)
For explanation of symbols please refer to the device online help (see section 3.2: Online Help).
3.2 Online Help
Context-sensitive help screens allow an intuitive handling of the device. Automatically generated
message boxes may additionally present context-sensitive warnings or information.
The context-sensitive help screens are available via the blue information icon, which is
displayed in the footer. The help screens explain the currently available symbols and their
functions.
At some screens, there is an additional information icon, which will provide further
information for the user (e.g. recommendations for measuring DPOAEs in a noisy environment, explanation
of free-field calibration).
3.3 Test Result Status Icons
In the test history list, test results are shown with an overall test result status icon. The icons
correspond to the following definitions:
Test result OK
Screening test: valid result
Diagnostic test: result within expected range of normal hearing
Test result incomplete, in-between OK and not OK, further test interpretation needed
Test with hearing threshold result (e.g. Audio, MAGIC Audio, and DPOAE Threshold):
result within expected range of mild hearing loss
Test result not OK
Screening test: invalid result
Diagnostic test: result within expected range of moderate to severe hearing loss
The test result status icon is meant as a rough hearing status estimator. It is not to be
interpreted as a binding result. A green status icon is not necessarily an indication that the
full auditory system is normal. A full audiologic evaluation should be administered if concerns about
hearing sensitivity persist. A yellow or red status icon should not be assumed to be an indicator of a
lack of auditory function or the presence of pathology. However, it should be followed with full
audiologic diagnostic testing as appropriate. In all cases, the examiner needs to check and interpret
result data within the context of the patient’s case history, considering results from other
measurements and additional influencing factors as appropriate (e.g. environmental conditions
during the test, patient cooperativeness).

Page 13 / 44
3.4 Device Hardware
3.4.1 On/Off Switch
The on/off switch is located at the right side of the device housing for handheld devices and at the
rear panel of the device housing for desktop devices (see Figure 2). The on/off switch can be used to
switch on or off the device. For switching on the device, press the switch briefly. The welcome screen
appears. For switching off the device, press the switch for about 10 seconds.
Alternatively the device can be switched off via the off switch icon in the footer of the device
display.
In addition, the on/off switch can be used in some test modules (e.g. MAGIC, SUN) to show the
footer, which may be hidden in these modules during the test.
Figure 2: On/off switch for handheld (left) and desktop device (right, marked with blue circle)
3.4.2 Device Reset
If the device is stalled (i.e., no reaction when pressing the touch screen), the device can be reset.
After reset, the device can be started again with the on/off switch. The reset button does not reset
any device or test module settings or any other data on the device.
In order to reset the device, for handheld devices, press the reset button on the back side of the
device below the rubber casing (see Figure 3). For desktop devices, press the on/off switch for
several seconds.
Figure 3: Device reset button for handheld device

Page 14 / 44
3.4.3 Device Sockets
Multiple accessories can be connected to the device. This includes e.g. transducers (e.g. headphones,
ear probe), electrode cable, patient response button, label printer, communication cable (RS232,
USB), and power supply unit. For further information see section 6: Accessories.
Desktop devices: When printing via label printer, please make sure that both the device
and the label printer are connected to the power supply unit; otherwise no printout will
be possible.
For handheld devices (see Figure 4 and Figure 5) the sockets can be used as described in Table 1.
Socket
Connectable accessory
Blue
Headphones, insert earphones, free-field loudspeaker
Sentiero, Sentiero Advanced: 2nd ear probe, ear coupler cable,
tympanometry add-on (PCB revision ≥ 70 only)
Red
Sentiero, Sentiero Advanced: Ear probe, microphone
Sentiero Advanced: Bone conductor, trigger cable
Grey
Senti, Sentiero: Patient response button, label printer, power supply, bone
conductor
Senti: RS232 cable
White
Sentiero Advanced: Electrode cable, patient response button, label printer,
power supply, modem
USB socket
USB cable with type mini B connector
Table 1: Device socket overview for handheld devices
Figure 4: Socket panel of handheld devices (from left to right: Senti, Sentiero, Sentiero Advanced)
Figure 5: USB socket of handheld device

Page 15 / 44
For desktop devices (see Figure 6) the sockets can be used as described in Table 2.
Socket
Connectable accessory
Blue
Senti Desktop Flex, Sentiero Desktop: Headphones, insert earphones, free-field
loudspeaker
Sentiero Desktop: 2nd ear probe, trigger cable
Red
Senti Desktop Flex, Sentiero Desktop: Bone conductor
Sentiero Desktop: Ear probe, microphone
①
Senti Desktop: Headphones
Please note that only a headphone specifically calibrated to the device can be used.
②
Senti Desktop: Bone conductor
Please note that only a bone conductor specifically calibrated to the device can be used.
③
Patient response button
④
Label printer, modem
⑤
USB cable with type B connector
⑥
Power supply
Table 2: Device socket overview for desktop devices
Figure 6: Socket panel of desktop devices (top: Senti Desktop, bottom: Sentiero Desktop)
Please note that Senti Desktop Flex in comparison to Sentiero Desktop does not contain an additional
pressure outlet socket nearby the blue connector socket in Figure 6 bottom.
3.4.4 Charging the Device
Connect the power supply unit to the device (see section 3.4.3: Device Sockets). For charging the
device, connect the power plug to a power mains socket with appropriate output voltage and
frequency. For more information about power supply units please see section 9: Technical
Specifications and information provided on the power supply unit. The charging process starts
⑥ ⑤ ④ ③ ② ①
⑥ ⑤ ④ ③

Page 16 / 44
automatically and is finished within about 2 hours (handheld) or 8 hours (desktop), respectively. The
battery status can be derived from the battery status icon symbol: fully charged; charging;
status indicator from empty to full.
3.5 Device Functions
3.5.1 User Management
With the Mira PC software you can activate or de-activate the user management on your device (see
Mira online help for more information). If the user management is activated, after switching on the
device, you will be asked to select a user and to enter the user password. Please follow the
explanations on the device. If you would like to change a user you need to logoff from the device and
restart the device. If the user management is active, you are only enabled to change module
parameters when logged in as administrator.
Please make sure that local data protection requirements are met. When deactivating
users on Senti/Sentiero devices, the device does not provide any inherent access
protection (i.e. no login with password).
3.5.2 Patient Management
After switching on the device (and if applicable after login) a patient can be added, selected from the
list of patients or the test module selection can be called in “Anonymous” mode, i.e. without adding
a patient. It is also possible to delete a single patient or all patients (Device Settings Data Management).
In “Anonymous” mode tests can be conducted and saved to a session. The session can
later be renamed with the appropriate patient data. This may be helpful e.g. for quickly
testing a sleeping child if there is no time to enter the patient data in advance. When
conducting data in “Anonymous” mode, always make sure that you are able to assign the test data
later to the correct patient.
For further information about patient management please see device online help (see section 3.2:
Online Help) on the “Select Patient” screen.
3.5.3 Device Settings
There are multiple options to configure the device to your needs.
The device settings can be reached with the tools button from the main patient selection screen.
The following device settings are available:
-Date and time, date and time format
-Language, sound (key click, result sound), display brightness, energy options, start menu,
keyboard preferences

Page 17 / 44
-Test preferences (e.g. BC symbol representation, speech calibration)
For further information about device settings please see device online help (see section 3.2: Online
Help) on the “Settings” screen and its submenus.
3.5.4 Hardware Tests
The main device functions can be tested with the “Functional Checks” option.
The device self-test examines several device properties as internal power supply, codec
function, and memory integrity. If a device property is correctly working, a green
checkmark icon is shown. Otherwise a red “x” icon is shown. If not all device properties are
tested successfully (i.e., not only green checkmarks), please contact your distributor.
The probe test examines ear probe functionality. Please use either the red test cavity (test
cavity for probe tip A) for testing the large probe tip or the blue test cavity (test cavity for probe tip
S) for testing the small probe tip. Do not use other combinations. The probe test either results in a
pass (probe OK) or in one of the error messages shown in Table 3. Please follow the recommended
actions for troubleshooting mentioned in Table 3.
Error message
Recommended actions for troubleshooting
No probe found
Check if the ear probe is properly connected to the device.
If not, connect the ear probe to the device.
Probe failed
1) Check if the ear probe is placed in the correct test cavity.
If not, use the correct test cavity provided with the ear probe.
2) Check if the calibration curves* are within the upper and lower tolerance
limit markers or if both of the calibration curves* are smooth lines.
If not, make sure to use the correct test cavity and check if one or both
channels of the probe tip are clogged. If so, change or clean the probe tip.
* For EP-TE ear probes only one channel is available and hence only one curve is shown
Table 3: Probe test error messages and recommended actions
If the recommended actions in Table 3 or in the online FAQ (www.pathme.de/support/faq) do not
help in solving the problem, please contact your distributor.
The pump unit test examines the functionality of the pneumatic system of Sentiero
Desktop or of the tympanometry add-on connected to Sentiero or Sentiero Advanced. If
the pump unit test fails (red icon), please contact your distributor.
The volume calibration of the device (“tymp calibration”) shall be checked regularly with
the probe fitted to the calibration cavities. The functionality of the device shall also be
checked on an ear known to produce a normal, peaked tympanogram (e.g. to ensure the pump is
operational and its tube is not blocked).

Page 18 / 44
3.5.5 License Management
If you would like to add modules to your device please contact your distributor. You can also use the
demo mode to evaluate the need for additional modules (see section 3.5.6: Demo Mode).
When upgrading your license, you will receive a new license key that needs to be entered on your
device. Before entering a new license key on the device, please make sure that you keep a written
note of the former license key details for potential reinstallation if needed. In order to update your
license key you need to go to the “License Management” screen (Device Settings About Device). The
existing license key and all currently licensed modules are displayed. When correctly entering and
confirming the new license key, the additional modules will be available on the device.
If you order a speech license, you will additionally receive a speech license file, which needs to be
installed on the device via Mira. Please follow the speech file installation instructions that you
receive together with the speech license file.
3.5.6 Demo Mode
You can activate the demo mode a limited number of times. In demo mode, you are able to use all
modules that are available for your device until the end of the day. Please note, that after activating
the demo mode, you cannot change your device date and time until the end of the day. If you are
interested in upgrading your device permanently with a specific module, please contact your
distributor.
3.5.7 System Information
On the system information screen, general information about the device and firmware
version is displayed. Information about connected transducers is also displayed if the
respective transducer has been connected before the system information screen is entered. On the
second page, the next service date of the device and the next calibration dates of the known
transducers are listed. When contacting your distributor regarding any service request (e.g. error
message or module update) this data should be at hand.
3.5.8 Test Module Information
Multiple test modules are available for each device. This includes standard pure-tone audiometry
(Audio), image-based pure-tone audiometry (MAGIC), speech tests (e.g. SUN, MATCH), other
subjective tests (e.g. MAUS, BASD), transient otoacoustic emissions (TEOAE), distortion product
otoacoustic emissions (DPOAE), auditory brainstem responses (ABR), auditory steady-state responses
(ASSR), tympanometry, and acoustic reflex measurements. This list may be subject to change. Please
contact your distributor or check the PATH MEDICAL homepage for an up-to-date list of available
modules and features.

Page 19 / 44
When conducting a measurement, please consider the following aspects:
If necessary for appropriate test performance (e.g. Audio, OAE), the device must be used in
a quiet environment (e.g. soundproof cabin, room with low ambient noise). For
measurements with ear probes (e.g. OAE) also a sound insulation headphone can be used. For AEP
measurements (e.g. ABR, ASSR) acoustical noise is less influential on test performance than muscle
artefacts (e.g. patient movement). For AEP measurements also make sure to test in an environment
with low electromagnetic disturbance from electronic devices (e.g. computers, lights, other
electronic medical devices) as electromagnetic radiation may deteriorate AEP test performance. It is
recommended to perform AEP tests in a shielded cabin. Please consider local regulations regarding
requirements for the test environment.
OAEs are most likely not present in ears with sound-conductive hearing loss, since both the
stimulus and the response amplitude are reduced due to the damping of the middle ear.
Please use only the large ear tips together with the large probe tip (PT-A) and the small ear
tips together with the small probe tip (PT-S). A wrong combination of ear tip and probe tip
may deteriorate test performance. See also advice in the accessory box. If in doubt about what
combination is correct, please contact your distributor.
If possible, do not hold the ear probe while it is placed inside the ear during OAE testing.
This may introduce noise into the measurement. Common sources of noise are acoustical
(room noise), biological (patient breathing, moving, talking, chewing, etc.), or physical (ear probe
movement) noise.
For further information and details about the various test modules, potential clinical
applications and recommendations for combining different test procedures please refer to
the How-To-Manual, which can be downloaded from www.pathme.de/support.
3.5.9 Error Handling
If an error occurs with your device please check the below list and proceed as recommended in Table
4. Further information about error handling can be found in section 3.5.4: Hardware Tests or in the
online FAQ (www.pathme.de/support/faq).
Error
Recommended action for troubleshooting
Black display
The display is automatically deactivated after 2 minutes (time span configurable)
without user activity in order to increase use time without recharging. Touch the
display in order to leave the power saving mode.
No feedback, black
display
After 10 minutes (time span configurable) without user activity the device automatically
powers down completely. Start the device by pressing the on-switch.
No feedback, black
display, device
stalled
If the device does not respond to user action you might need to restart the device by
pressing the reset switch (see section 3.4.2: Device Reset). Charge the battery if
necessary.

Page 20 / 44
Error
Recommended action for troubleshooting
Error message:
“Battery is too low
for testing.”
Connect the device to the power supply unit for charging the battery. It may take a few
minutes until the device is ready for starting a test module again.
Device stops test
and/or shuts down
during test.
Connect the device to the power supply unit for charging the battery. If a test is
stopped due to low battery and the device is shut down, the test data is saved before
shut down.
Error message:
“Remove cable”
Remove the connector cable (e.g. label printer cable, RS-232 cable, modem cable).
Error message:
“Touch screen
error”
The error message appears if there is a permanent pressure on the touch screen during
startup of the device. Check if there is a particle between the display and the
surrounding display frame. Remove the particle with a small and soft tool (e.g. paper
strip).
Error message:
“Calibration/service
interval expired”
The error message appears if the calibration interval of a transducer or the service
interval of the device has expired. Please send the transducer and/or the device to your
service partner.
“Error [Error-ID]”
Device error recognized by device self-test. Contact your service partner for more
information.
Table 4: Errors and recommended actions
If the recommended actions in Table 4 or in the online FAQ do not help in solving the problem,
please contact your distributor.
3.6 Mira PC Software
The latest Mira PC software is available via download from the PATH MEDICAL homepage (see
www.pathme.de/support). Mira includes the latest firmware and speech files for updating the
device. Mira comes with an online help for further information about correct handling.
Mira can be used for administering users, downloading data from the device, uploading and
downloading patient information to and from the device, reviewing and archiving test data, printing
test data to a standard PC printer, and exporting test data in various formats (e.g. GDT, Excel).
Some of the functionality only works with a communication license installed on the device (e.g. data
download from device). You do not need a communication license installed for the following
activities with Mira:
-updating your device to a new firmware
-updating a speech license or speech files
-updating user management on the device
-uploading patients to the device
-pdf export of test data (Direct Print)
Information about Mira error handling can be found at www.pathme.de/support/faq.