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Sonotec SONASCREEN Operating Manual

Acoustic camera for preventive maintenance
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Operating Manual
SONASCREEN
Acoustic camera for preventive maintenance
Translation of the German Original
Revision: 1.0 | 2022-03-04

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Summary of Contents for Sonotec SONASCREEN

  • Page 1 Operating Manual SONASCREEN Acoustic camera for preventive maintenance Translation of the German Original Revision: 1.0 | 2022-03-04...

  • Page 2: Table Of Contents

    Operating Manual | Content SONASCREEN Content Introduction ........................4 Notes on this document ....................4 Representations in this document ................. 4 Identification of warning instructions................5 Safety instructions ......................6 Introduction ........................6 Basic hazards ........................6 2.3 Personnel and qualifications ..................7 2.4 Safety-conscious working practices................
  • Page 3 6.3 Creating video or audio files ..................69 6.4 Managing measurements ..................... 71 Using computer software ..................... 75 6.5.1 SONASCREEN software ................... 75 6.5.2 LeakReport software ..................75 6.6 Turning off the device ....................77 Maintaining the system ....................78 Updating the device software ..................

  • Page 4: Introduction

    Operating Manual | 1 Introduction SONASCREEN 1 Introduction This section is intended to explain function, structure and representations of the document to simplify handling of the document. Notes on this document Purpose This document constitutes an integral part of the product and contains important advice on safe operation as well as all information on intended and efficient use.

  • Page 5: Identification Of Warning Instructions

    Operating Manual | 1 Introduction SONASCREEN 1.3 Identification of warning instructions This document contains warnings regarding hazards of different classifications. These classes are characterized by signal words and colors. They include the following: DANGER Warns of immediate danger, which, if ignored, may lead to death or serious injury.

  • Page 6: Safety Instructions

    Operating Manual | 2 Safety instructions SONASCREEN 2 Safety instructions 2.1 Introduction Reliable and safe operation of the product depends on the careful handling and execution of operational and setting tasks. Ignoring these safety instructions and warning information may lead to serious injury with lasting health consequences for personnel as well as damage or destruction of product components.

  • Page 7: Personnel And Qualifications

    Do not use the product and its accessories if they display functional errors and/or visible damage. • Only connect the product to approved equipment received from SONOTEC GmbH or its sales partners. • The product adheres to the protection class given in the technical specification and is protected against splash water.

  • Page 8: Modifications And Alterations

    Spare parts and accessories Spare parts and accessories must comply with the technical requirements specified by SONOTEC GmbH and its suppliers. Whenever original parts are used, compliance is given. No alterations to the software Do not alter the supplied software or commission software alterations to third parties. The software may not be disassembled, decrypted or decompiled in full or in part.

  • Page 9: Data Security

    Operating Manual | 2 Safety instructions SONASCREEN 2.7 Data security Data loss The loss of measurement data may lead to incomplete measuring chains or misinterpretations. • Always make sure to backup measurement data regularly on external data media. • Back up your measurement data before updating the software or resetting the device to factory settings.

  • Page 10: Description Of The Device

    3.2 Prohibited use Any use not approved by SONOTEC GmbH is prohibited and may lead to injury or damage to property. SONOTEC GmbH accepts no liability for damage caused by prohibited use of the product.
  • Page 11 SONASCREEN Designation Article number Audio cable for Peltor earmuffs, noise protection headphones 400 01 0139 Pelican hard shell case for SONASCREEN 400 01 0234 USB flash drive for SONASCREEN 026 00 0100 Short operating instructions "Quick start" 500 01 0214...

  • Page 12: Connections, Interfaces, Device Elements

    Operating Manual | 3 Description of the device SONASCREEN 3.4 Connections, interfaces, device elements Structure Figure 1: Measurement and operating side with connections, interfaces and device elements Description Connection/interface/device element LEDs (torchlight functionality) 12 / 89 Revision: 1.0 | 2022-03-04...

  • Page 13: Status Display And Device Buttons

    Operating Manual | 3 Description of the device SONASCREEN Connection/interface/device element Camera for detection of optical signals Microphones for detection of acoustic signals Connection for tripod adapter plate Connection for charger/power supply Touch screen Earphone connection (jack socket 3.5 mm)

  • Page 14: Device Labeling

    Operating Manual | 3 Description of the device SONASCREEN Component Description/function Status LED Shows the current device status: SONASCREEN • Flashing: device is starting up • Green: device is running On/off button • Short pressing: turning on the status LEDs state of charge •...

  • Page 15: User Interface

    Operating Manual | 3 Description of the device SONASCREEN 3.7 User interface This section describes the software's screens. Depending on the use of the software (directly on the device or on a personal computer), individual functions may be activated or deactivated.

  • Page 16: Configuration

    Operating Manual | 3 Description of the device SONASCREEN Type Description/function Open saved • List for selection of saved measurements measurements • Icon for opening the selected measurement 3.7.2 Configuration Description The "Configuration" screen is organized in two sections. Swipe or tap the arrow symbols to switch between the sections.
  • Page 17 Operating Manual | 3 Description of the device SONASCREEN Type Description/function Support information Opens a screen with the manufacturer's contact information and a and update software button for updating the device software. Trigger Opens a screen for setting the trigger for automatic recording of measurements.

  • Page 18: Measurement

    Operating Manual | 3 Description of the device SONASCREEN Type Description/function Themes Opens a screen for selection of the preferred theme (light or dark) for the user interface. Password protection Opens a screen for activation/deactivation of password protection. Long-term Opens a screen for activation/deactivation and settings of long-term measurement measurements.
  • Page 19 Operating Manual | 3 Description of the device SONASCREEN Type Description/function Spectrum Shows the following spectra depending on the current position (Y-cut) within the spectrogram: • red: global • green: averaged • yellow: Peak hold • blue: local Allows for scaling the Y-axis (frequency).
  • Page 20 Operating Manual | 3 Description of the device SONASCREEN Icon Designation Description/function Availability Audio output Opens a field with functions for • Measurement recording activation/deactivation and filtering • Measurement analysis of the audio output. Record time Opens a field for setting the •...
  • Page 21 Operating Manual | 3 Description of the device SONASCREEN Icon Designation Description/function Availability • Measurement recording Add marker Adds a marker on the spectrogram's • Measurement analysis timeline: • at the current position during recording a measurement. • at the selected playback position after ending a recording or an opened measurement.

  • Page 22: Password Protection

    The software used on the device is also available as software for Microsoft Windows computers. The "SONASCREEN" computer software may be used to control the device via a personal computer. Measurements recorded with the device may directly be saved on the personal computer.
  • Page 23 Operating Manual | 3 Description of the device SONASCREEN By using the computer software, measurements with a recording time of more than 60 seconds are possible. The computer software offers the same appearance and the same functions as the device software.

  • Page 24: Preparing A Work Order

    Procedure Press the On/off button and keep pressing for 3 seconds. The SONASCREEN status LED flashes, the device is started up, the software loads. As soon as the status LED is permanently lit, the device is ready to use. 24 / 89...

  • Page 25: Configuring The Device

    Operating Manual | 4 Preparing a work order SONASCREEN 4.2 Configuring the device After turning on, the device's configuration needs to be checked and customized to the corresponding work order and/or the tester's requirements if necessary. 4.2.1 Setting user interface language and keyboard layout...
  • Page 26 Operating Manual | 4 Preparing a work order SONASCREEN In the Virtual keyboard field, select the layout for the on-screen keyboard. Further information For setting the user interface language and the keyboard layout, please also see the descriptions of the following screens: •...

  • Page 27: Recording Options, Setting Date And Time

    Operating Manual | 4 Preparing a work order SONASCREEN 4.2.2 Recording options, setting date and time Description The quality of the recorded measurements depends on the configuration of the acoustic recording and the camera capture. This configuration also influences the measurement data's memory size.
  • Page 28 Operating Manual | 4 Preparing a work order SONASCREEN Select beam speed, acoustic averaging as well as camera resolution and speed according to the guidelines or measurement requirements. All values will be saved automatically directly after selection. In the field Change date & time, enter the current values.

  • Page 29: Setting Saving Options

    Operating Manual | 4 Preparing a work order SONASCREEN 4.2.3 Setting saving options Description For clearer representation, measurements will be organized in folders. For several or repeated measurements at an individual measuring point, measurement series may be defined. Each measurement series will have its own name. This name is used as saving location (directory) and within the file name of each measurement of a measurement series.
  • Page 30 Operating Manual | 4 Preparing a work order SONASCREEN In the Measurement series field, activate/deactivate saving measurements in a measurement series. If Measurement series is activated, a name for the measurement series must be entered. Further information For setting saving options, please also see the description of the following screens: •...

  • Page 31: Customizing Function Keys

    Operating Manual | 4 Preparing a work order SONASCREEN 4.2.4 Customizing function keys Description All eight function keys of the device offer functions preconfigured by the manufacturer. Each function key may be customized with predefined functions. Generally, the following functions are available: •...
  • Page 32 Operating Manual | 4 Preparing a work order SONASCREEN Select the preferred function for each function key. Further information For customization of the function keys, please also see the description of the following screens: • Start • Configuration 32 / 89...

  • Page 33: Selecting A Theme

    Operating Manual | 4 Preparing a work order SONASCREEN 4.2.5 Selecting a theme Description The device offers two different themes to display the user interface in a light or dark design. Procedure Open the "Configuration" screen. In the "Configuration" screen, switch to section 2.

  • Page 34: Using Password Protection

    Operating Manual | 4 Preparing a work order SONASCREEN 4.2.6 Using password protection Description To limit misuse of the device or the measurement data saved therein, the device may be protected by password. If password protection has been set, the device must be unlocked by password after each startup.
  • Page 35 (see "7.2 Resetting the device", page 81)or • unlocked by a master password. The master password may be requested from SONOTEC GmbH. For requesting a master password, some details are necessary for identity verification. They can be retrieved as follows: In the "Password protection"...
  • Page 36 Operating Manual | 4 Preparing a work order SONASCREEN A dialog windows with hints for recovering the password and the following details for identity verification opens: • Mac Address • Date Further information For using password protection, please also see the description of the following screens: •...

  • Page 37: Setting The Trigger

    Operating Manual | 4 Preparing a work order SONASCREEN 4.3 Setting the trigger Description Triggers are used for automated saving of measurement sections during measurement recording. Triggers for saving may be customized. This is possible with two different methods. Availability Automated recording of measurement data with triggers is only available in the "Measurement recording"...
  • Page 38 Operating Manual | 4 Preparing a work order SONASCREEN Tap the "Trigger" icon. Activate the enabled checkbox. Enter the particular values in the Pre-trigger time, Post-trigger time and Trigger level fields. In the Data to store picklist, select the data you want to save.
  • Page 39 Operating Manual | 4 Preparing a work order SONASCREEN Parameter Description/function Pre-trigger time Duration in seconds before triggering a recording. This duration is part of the section of the current measurement that is to be saved. Post-trigger time Duration in seconds after triggering a recording. This duration is part of the section of the current measurement that is to be saved.
  • Page 40 Operating Manual | 4 Preparing a work order SONASCREEN Setting the "Spectrum" trigger method Open the "Configuration" screen. Tap the "Trigger" icon. Activate the enabled checkbox. Enter the particular values in the Pre-trigger time and Post-trigger time fields. In the Data to store picklist, select the data you want to save.
  • Page 41 Operating Manual | 4 Preparing a work order SONASCREEN Figure 9: "Spectrum" screen Type Description/function Grid point • Defines frequency and level on a determined position within the spectrum. • May be moved to a different position by tapping and pulling or by entering different values for frequency and level.
  • Page 42 Operating Manual | 4 Preparing a work order SONASCREEN Type Description/function Previous grid point • Switches to the grid point before the selected grid point. 42 / 89 Revision: 1.0 | 2022-03-04...

  • Page 43: Performing Measurements

    Operating Manual | 5 Performing measurements SONASCREEN 5 Performing measurements The device may be used to record measurement data with two differing methods. Apart from measurements suited for differing applications, the devices offers the possibility to specifically record measurement data for leakage measurements.
  • Page 44 Operating Manual | 5 Performing measurements SONASCREEN Tap the "Start measurement" icon and keep pressing. A menu with recording options for the following measurement ranges opens: = up to 24 kHz = up to 100 kHz Tap the required recording mode.

  • Page 45: Starting A Leakage Measurement

    Operating Manual | 5 Performing measurements SONASCREEN 5.2 Starting a leakage measurement Description Measurements that are started with the recording method "Leakage measurement recording" are used for detection and documentation of compressed air leakage. Due to the measurement data that are required for this kind of detection, different controls and measurement settings have to be predefined by the manufacturer and cannot be customized.

  • Page 46: Customizing Measurement Settings

    Operating Manual | 5 Performing measurements SONASCREEN • Measurement 5.3 Customizing measurement settings Depending on the work order, differing measurement settings in the “Measurement” screen may be required or useful for optimized analysis and evaluation of measurement data. 5.3.1 Setting the distance from the sound source...
  • Page 47 Operating Manual | 5 Performing measurements SONASCREEN Scaling mode Description Auto In Auto mode, the sound source is represented that generates the strongest level within the set frequency band. Depending on the set dynamic range, the following colors are assigned to the image areas: •...

  • Page 48: Setting The Frequency Filter

    Operating Manual | 5 Performing measurements SONASCREEN • Measurement 5.3.3 Setting the frequency filter Description Tests with large radiating surfaces may lead to low-frequency noise effects. The large color areas of these noise fractions may overlap the areas of the high-frequency sound sources.

  • Page 49: Setting The Recording Time

    The device's internal storage offers 32 GB. This memory size is sufficient for approximately 400 measurements with a duration of 10 seconds or 80 measurements of 60 seconds. The recording time of SONASCREEN is limited to 60 seconds. If the device is controlled via the computer software, measurements of 180 seconds are possible.

  • Page 50: Adjusting The Audio Output

    Operating Manual | 5 Performing measurements SONASCREEN 5.3.5 Adjusting the audio output Description The detected sound signals are visualized in the beam picture and may additionally be output as sound via the device's headphone socket. Audio output focuses on the center of the field of view in the beam picture. The sound signals occurring at this position are distinguished from the ambient noise.

  • Page 51: Creating Screenshots

    Operating Manual | 5 Performing measurements SONASCREEN 5.4 Creating screenshots Description During recording or analyzing measurements, screenshots may be taken. These screenshots may be used for documentation of measurements and/or procedures. A screenshot saves the display view with its current layout.

  • Page 52: Saving A Measurement

    Operating Manual | 5 Performing measurements SONASCREEN Procedure Tap the "End measurement" icon. 5.6 Saving a measurement Description All measurement data cached after ending a measurement may be saved in a measurement data file in the device. Each saved measurement data file may be opened again at any point in time.

  • Page 53: Saving A Leakage Measurement For Report

    Operating Manual | 5 Performing measurements SONASCREEN 5.7 Saving a leakage measurement for report Description Reports of measurement data from leakage measurements may be generated with the "LeakReport" computer software. Regardless of the recording time set in the device, leakage measurements will always be saved with a recording time of one second.
  • Page 54 Operating Manual | 5 Performing measurements SONASCREEN • Frequency filter • Recording time • Audio output Opening the "Choose profile" screen On the "Start" screen, tap the "Choose profile" icon. Creating a user profile In the "choose profile" screen, tap the new Profile button.
  • Page 55 Operating Manual | 5 Performing measurements SONASCREEN Deleting a user profile ATTENTION Data loss during deletion During deletion of a user profile, all saved configurations and measurement settings will be deleted as well. • Before deleting a user profile, please make sure that these data may indeed be deleted.

  • Page 56: Using Long-Term Measurement

    Operating Manual | 5 Performing measurements SONASCREEN Configuration/measurement setting Value Function keys standard configuration Procedure ATTENTION Direct reset to factory settings The device will be reset to factory settings without confirmation prompt. In the "Choose profile" screen, tap the restore Defaults button.
  • Page 57 Operating Manual | 5 Performing measurements SONASCREEN In the "Configuration" screen, switch to section 2. Tap the "Long-term measurement" icon. Activate the activate checkbox. Enter the particular value for the time interval in the Interval field. The value must be between 10 and 900.
  • Page 58 Operating Manual | 5 Performing measurements SONASCREEN Customizing measurement data representation For a long-term measurement, the representation of the recorded measurement data in the beam picture and/or the spectrum may be customized. During the long-term measurement, press the beam picture or the spectrum and keep pressing for about 2 seconds.
  • Page 59 Operating Manual | 5 Performing measurements SONASCREEN • Customizing the display 59 / 89 Revision: 1.0 | 2022-03-04...

  • Page 60: Concluding A Work Order

    Operating Manual | 6 Concluding a work order SONASCREEN 6 Concluding a work order After performing and saving all measurements, these may subsequently be analyzed on the device or edited for further applications (e.g. videos, reports or editing on the personal computer).

  • Page 61: Evaluating Measurement Results

    Operating Manual | 6 Concluding a work order SONASCREEN The selected measurement is opened in the "Measurement" screen. Further information For opening saved measurements, please also see the following descriptions and/or instructions: • Start • Setting saving options 6.2 Evaluating measurement results Measurement results may be evaluated either directly after ending a measurement or subsequently as saved measurement.
  • Page 62 Operating Manual | 6 Concluding a work order SONASCREEN A menu with the following playback modes opens: = regular speed (0,25) = 0.25x regular speed (0,5) = 0.5x regular speed Tap the icon of the particular playback mode. The measurement is played back with the selected speed.

  • Page 63: Adding A Marker In The Spectrogram

    Operating Manual | 6 Concluding a work order SONASCREEN Optional: Navigate between the single images with the "Next image" (2) or "Previous image" (4) icons. The number of the currently selected single image is displayed in the header (1) of the timeline navigation.
  • Page 64 Operating Manual | 6 Concluding a work order SONASCREEN A marker is added at the current playback position. Navigating between markers If measurements contain markers, it is possible to navigate between markers. It is also possible to delete existing markers.

  • Page 65: Customizing The Display

    Operating Manual | 6 Concluding a work order SONASCREEN Optional: Tap the "Delete" (3) icon to delete the currently selected marker. Further information For adding markers in the spectrogram, please also see the following descriptions and/or instructions: • Ending a measurement •...
  • Page 66 Operating Manual | 6 Concluding a work order SONASCREEN Order View Image Combined view with zoomed-in beam picture Beam picture as full screen Spectrogram and spectrum as full screen 66 / 89 Revision: 1.0 | 2022-03-04...
  • Page 67 Operating Manual | 6 Concluding a work order SONASCREEN Order View Image Combined view with zoomed-out beam picture Customizing beam picture representation In the "Measurement" screen, tap the beam picture and keep pressing for about 2 seconds. A context menu with the following display options will open:...
  • Page 68 Operating Manual | 6 Concluding a work order SONASCREEN Figure 10: "Low-Cut" function menu Description/function Activates/deactivates "Low-Cut" function. Raises the cutoff frequency by 1 dB. Lowers the cutoff frequency by 1 dB. Shows the currently set cutoff frequency in dB.

  • Page 69: Creating Video Or Audio Files

    Operating Manual | 6 Concluding a work order SONASCREEN Scaling option Description/function Opens an input field for setting the timeline scaling. Minimum and maximum values in s may be entered. Opens an input field for setting the frequency axis scaling. Minimum and maximum values in Hz may be entered.
  • Page 70 Operating Manual | 6 Concluding a work order SONASCREEN The beginning is marked with a green line in the spectrogram. Optional: In the spectrogram, tap the required end of the export file. Optional: Tap the "Set end" (2) icon. The end is marked with a green line in the spectrogram.

  • Page 71: Managing Measurements

    Operating Manual | 6 Concluding a work order SONASCREEN Tap the File path (1) icon and select the saving location. Tap the File name (2) icon and enter the particular file name. In the Output (3) field, select the required output type (audio or video).
  • Page 72 Operating Manual | 6 Concluding a work order SONASCREEN Tap the "Data management" icon. Selecting measurements With the data management function, all measurements and/or directories saved in the device may be selected for further procedure. Single measurements or directories In the left-side column (device internal storage), tap the particular measurements or directories.
  • Page 73 Operating Manual | 6 Concluding a work order SONASCREEN All measurements and directories Tap the "Select objects" icon. Repeated tapping of the icon changes the function in the following order: Icon Description/function Select all measurements. Select all measurements and directories.
  • Page 74 Operating Manual | 6 Concluding a work order SONASCREEN Transferring measurements to a USB storage medium For further evaluation and/or processing, the measurements and/or directories saved on the device may be transferred to a personal computer via a USB storage medium.

  • Page 75: Using Computer Software

    Extract the ZIP file to the preferred saving location on the personal computer. In the software's directory, double-click the "SONASCREEN.exe" file. The computer software is started. Mind the security settings of the operating system Starting the computer software depends on the security settings of the operating system.
  • Page 76 Operating Manual | 6 Concluding a work order SONASCREEN Installation with administrator rights The "setup.exe" file may only be executed with administrator rights. The Installation Wizard opens. Execute all steps in the Installation Wizard until the installation is completed. Execute the "LeakReport Config Installer.exe" file.

  • Page 77: Turning Off The Device

    Operating Manual | 6 Concluding a work order SONASCREEN View and evaluate the analysis result (3). Check the measurement data of the individual measurements and if necessary, adjust them (4). Create the report (5). 6.6 Turning off the device Description The device may be shut down and turned off either by the software or the On/off button.

  • Page 78: Maintaining The System

    Operating Manual | 7 Maintaining the system SONASCREEN 7 Maintaining the system This section contains instructions for maintenance and servicing of the device and the device software. 7.1 Updating the device software Description Updates of the device software may be downloaded from the mysonaphone.com...
  • Page 79 Operating Manual | 7 Maintaining the system SONASCREEN In the "Data management" screen, mark the update file in the right-side column (USB storage medium). Tap the "Copy" icon. 79 / 89 Revision: 1.0 | 2022-03-04...
  • Page 80 Operating Manual | 7 Maintaining the system SONASCREEN Installing the update on the device Connect the device to the power supply with the power supply unit. Mind the battery's state of charge! For updating the device software, the battery's state of charge must be at least 20 %.

  • Page 81: Resetting The Device

    Operating Manual | 7 Maintaining the system SONASCREEN In the "File selection" window, navigate to the update file. Mark the update file. Tap the "Confirm" ( ) icon. The update process is started. After successful completion of the update process, a notification window opens.

  • Page 82: Cleaning And Maintenance

    ATTENTION Check the compatibility of used cleaning agents! The compatibility of all cleaning agents with used materials and colors must be confirmed and approved by SONOTEC GmbH or the respective supplier. Unsuitable cleaning agents Do not clean the product with: •...

  • Page 83: Maintenance

    Operating Manual | 7 Maintaining the system SONASCREEN After cleaning After cleaning the device, make sure that: • cables, connectors and fittings are free of cleaning agents and • cables, wires, connectors and electrical components are dry. 7.3.2 Maintenance Guidelines Do not open the device! The device contains no parts to be maintained or repaired by the operator.

  • Page 84: Troubleshooting

    Operating Manual | 8 Troubleshooting SONASCREEN 8 Troubleshooting Potential error Possible cause Troubleshooting After full reset, the "Leakage After full reset, all After full reset, the device software measurement“ icon is not parameters and connections must connect again to the device shown on the "Start"...

  • Page 85: Technical Data

    Operating Manual | 9 Technical data SONASCREEN 9 Technical data General data Order number 400 01 0233 Dimensions (L × W × H) 12.2 × 6.3 × 2.2 inch Weight 3.3 lb Electrical data Power supply Charger (19 V, 4.7 A, 90 W max.)
  • Page 86 Operating Manual | 9 Technical data SONASCREEN Sensor system (acoustic) Microphones: 72 digital MEMS microphones Frequency range: up 100 kHz Sampling rate: 200 kHz Sound pressure level: 120 dB max. Resolution: 24 bit Sensor system (optical) Camera: digital Resolution: 320 × 240 pixels (at 50 fps) or 640 × 480 pixels (at 16 fps) Aperture angle: 70 °...

  • Page 87: Disposal

    Operating Manual | 10 Disposal SONASCREEN 10 Disposal Electrical and electronic devices may pose a risk to health and the environment if disposed of incorrectly. They cannot therefore be disposed of as domestic waste according to WEEE Directive 2012/19/EU (Waste Electrical and Electronic Equipment Directive). Instead they must be taken to designated collecting points or returned to the manufacturer.

  • Page 88: Warranty

    Warranty During the warranty period, SONOTEC GmbH will eliminate all deficiencies caused by material or manufacturing faults free of charge. SONOTEC GmbH will at its own discretion offer warranty by reparation or replacement of faulty products. Exceptions Internal accumulators as well as damage caused by unintended use, by wear or by manipulation of the product are exempt from warranty.

  • Page 89: Copyright And Contact

    © SONOTEC GmbH All rights reserved. All contents of this document are property of SONOTEC GmbH and are protected by copyright. Duplication, modification and/or distribution in any form, particularly for reprint, for photographic, mechanical or electronic reproduction or in the form of saving in data processing systems or data networks is forbidden without written approval by SONOTEC GmbH.

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