HBK Industrial BraggMETER DI User Manual
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HBK Industrial BraggMETER DI User Manual

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FS22DI
Industrial BraggMETER DI

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Summary of Contents for HBK Industrial BraggMETER DI

  • Page 1 ENGLISH User Manual FS22DI Industrial BraggMETER DI...
  • Page 2 Hottinger Brüel & Kjaer GmbH Im Tiefen See 45 D-64293 Darmstadt Tel. +49 6151 803-0 Fax +49 6151 803-9100 info@hbkworld.com www.hbkworld.com HBK FiberSensing, S.A. Rua Vasconcelos Costa, 277 4470-640 Maia Portugal Tel. +351 229 613 010 Fax +351 229 613 020 info.fs@hbkworld.com www.hbkworld.com...

  • Page 3: Table Of Contents

    TABLE OF CONTENTS Technical Details ..........General Information .
  • Page 4 3.6.2 Resetting the IP address of the interrogator ......3.6.3 Synchronization ........... 3.6.4 Operation .
  • Page 5 7.2.1 Graphical View ........... . 7.2.2 Numerical View .

  • Page 6: Technical Details

    TECHNICAL DETAILS General Information The Industrial BraggMETER DI is a continuous swept laser scanning interrogator for fiber Bragg grating (FBG) sensors. It includes a traceable wavelength reference that provides continuous calibration to ensure system accuracy over long term operation. The high dynamic range and high output power allow high resolution to be attained even for long fiber leads and lossy connections.

  • Page 7: Synchronization

    These interrogators can be integrated into any system through SCPI like commands (ASCII strings). LabView Drivers are also available for third party integration. Relevant software packages are available for download on our website ( https://www.hbkworld.com/en/services-support/support/support-hbm/downloads/ downloads-software/software-firmware-downloads-for-optical-interrogators The dynamic industrial BraggMETER is compatible with the powerful professional catman Easy/AP software.

  • Page 8: Regulatory And Certification Considerations

    HBK FiberSensing is a manufacturer registered in the ANREEE - "Associação Nacional para o Registo de Equipamentos Eléctricos e Electrónicos" under number PT001434.
  • Page 9 Most of our packing are made of paper and plastic and aimed to be reused or recycled, but they are not appropriate for food containing. Please consult the chapter “Packing Symbols” for more detailed information about the packing materials used by HBK FiberSensing, marked in the packing label of each product delivered to customers.
  • Page 10 Fig. 2.2 Recycling symbols Plastics Plastic packaging materials are commonly bags, films, trays, blisters or containers. Batteries Batteries are not part of the packaging, but they may be included in the equipment or its accessories. Please refer to section 2.1.1 “Disposal of your Old Appliance” for more information.

  • Page 11: Laser Safety

    ALU is for aluminum. Laser Safety The FS22 - Industrial BraggMETER DI interrogator contains a laser in its core. A laser is a light source that can be dangerous to people exposed to it. Even low power lasers can be hazardous to a person's eyesight.

  • Page 12: General Precautions Considerations

    The optical connectors are subjected to maintenance and/or inspection. Please refer to section 4.3.1 for maintenance procedure. Do not attempt to open or repair a malfunction interrogator. It must be returned to HBK FiberSensing for repair and calibration. Certification 2.3.1...

  • Page 13: Ukca Marking

    2.3.2 UKCA Marking This product carries the UKCA marking and complies with the appli­ cable international requirements for product safety and electromag­ netic compatibility, according to the following Directives: EMC: Electromagnetic Compatibility Regulation 2016, No. 1091 Safety: Electrical Equipment Regulations 2016, No. 1101 The corresponding Declaration of Conformity is available upon request.
  • Page 14 Symbol Significance This marking draws your attention to information Information about the product or about handling the product. Emphasis Italics are used to emphasize and highlight text and See … identify references to sections, diagrams, or external documents and files. This marking indicates an action in a procedure FS22DI REGULATORY AND CERTIFICATION CONSIDERATIONS...

  • Page 15: Operation

    OPERATION Connectors 3.1.1 Standard Front view Back view Fig. 3.1 Front and back view of FS22DI Standard The connectors and buttons in Fig. 3.1 are: Optical Output Connectors (FC/APC) ON/OFF Button Power Connector Ethernet Connector POWER and STATUS LEDs FS22DI OPERATION...

  • Page 16: Rack-Mountable

    Ethernet Connector Setting Up 3.2.1 Power Supply To start the FS22 - Industrial BraggMETER DI interrogator connect the power cable to the interrogator Power Connector (number in Fig. 3.1 or number in Fig. 3.2). To acknowl­ edge proper power supply, the POWER LED will turn green during 2 seconds after con­...

  • Page 17: Optical Connectors

    Attention should be paid to the cleaning of the optical connectors. A dirty connector can compromise the measurement and will degrade the performance of the interrogator. It is advisable to frequently clean the connectors using appropriate tools. FS22 - Industrial BraggMETER DI can have one, four or eight optical connectors in paral­ lel. FS22DI...

  • Page 18: Ethernet Connection

    Pay careful attention to rack doors or cabinet lids that may force, twist or pinch the cables (optical or electrical) com­ promising measured signals. If you have questions or require assistance, please reach out to HBK FiberSensing for support. Maintenance 3.3.1...

  • Page 19: Optical Connectors

    Optical connectors Optical connectors of the interrogator are subject to degradation and can actually break upon misusage (see section 4.3.2. Broken Connector). If this happens, the interrogator must be sent back to HBK FiberSensing for repair. 3.3.4 Calibration BraggMETER interrogators have a built-in traceable wavelength reference that ensures calibrated measurements at all time.

  • Page 20: Switching Off

    3.6.1 Network Properties To operate the FS22 - Industrial BraggMETER DI from a personal computer, the PC net­ work properties should be set so that both elements are configured in the same subnet. To configure your personal computer so that it is on the same subnet as the default for...
  • Page 21 Select the LAN connection. The window displayed in Fig. 3.7 will appear. Click on Properties. Fig. 3.7 Local Area connection Status FS22DI OPERATION...
  • Page 22 Select the Internet Protocol (TCP/IP) and click on the Properties button (Fig. 3.8). Fig. 3.8 Local Area connection properties FS22DI OPERATION...

  • Page 23: Resetting The Ip Address Of The Interrogator

    Set the IP address and the Subnet mask (Fig. 3.9). Fig. 3.9 Internet Protocol Version 4 Properties Press OK. 3.6.2 Resetting the IP address of the interrogator If for any chance there is the need to physically change the IP address of the interrogator, there is a reset procedure that consists on pressing the ON/OFF button for more than 10 seconds.

  • Page 24: Synchronization

    POWER LED POWER LED ON POWER LED blinks blinking at 1 Hz 3 times and goes OFF Fig. 3.10 Power LED while pressing Switching Off for more than 10 s This procedure resets the interrogator changing its IP address to the default and its mea­ suring settings to the last ones stored.
  • Page 25 A hybrid measurement system is a system composed by differ­ ent equipment types and technologies that can be operated with different sampling rates. Taking the example of HBK families a hybrid system could be a combination of Interrogators with QuantumX.

  • Page 26: Operation

    3.6.3 Synchronization on page 24 for further details). 3.6.4 Operation The FS22 - Industrial BraggMETER DI interrogator can be fully controlled using standard SCPI syntax commands (for a complete command list, please refer to section 5.1 “Communication Protocol Syntax” on page 40).
  • Page 27 (in standards and formats) are defined as dot for decimal symbol, comma for digit grouping symbol and dash for date separation. Operational States The FS22 - Industrial BraggMETER DI interrogator has five operational states: 0 Error The error state corresponds to a malfunction of the optoelec­...
  • Page 28 Fig. 3.13 Operational States and main commands FS22DI OPERATION...
  • Page 29 Power Shortage In case of power shortage when the FS22 - Industrial BraggMETER DI interrogator is run­ ning in the ready, free acquisition or continuous acquisition states, the operational state is maintained once the power supply is reestablished with the stored acquisition settings.

  • Page 30: Measuring Examples

    A branch can accommodate sensors with wavelengths corresponding to all standard HBK FS wavelengths. The number of sensors in a connector can vary if there is previous knowledge about the spectral range the sensors will cover. The major concern is the overlap of adjacent sensors.

  • Page 31: Definitions

    Definitions The following definitions are applicable to this equipment only. 4.2.1 Wavelength The Wavelength value corresponds to the wavelength at the peak of the fiber Bragg grat­ ing reflection spectrum, commonly referred as Bragg wavelength (Fig. 4.2). FBG reflection spectrum Wavelength Wavelength in nm Fig.

  • Page 32: Power

    4.2.2 Power The Power value corresponds to the optical power reflected by the fiber Bragg grating at the peak wavelength (Fig. 4.3). It is a relative value from 0 to 4095. FBG reflection spectrum Power Fig. 4.3 Power FS22DI MEASURING EXAMPLES...

  • Page 33: Gain

    4.2.3 Gain The gain is an amplification value applied to the received reflected signal in order to opti­ mize the measured power. It is a value from 0 to 255. FBG reflection spectrum with Gain = 10 FBG reflection spectrum with Gain = 0 Wavelength in nm Fig.

  • Page 34: Threshold

    4.2.4 Threshold The threshold value corresponds to the considered power level for the FBG peak compu­ tation and can be used to disregard side lobes and ground noise. It is a value from 200 to 3200 definable for each optical connector individually. It is measured bottom-up from the 0 (zero) power value.

  • Page 35: Common Measuring Difficulties

    Common Measuring Difficulties There may be the possibility of having measuring malfunctions due to problems in the sensing network or optical connections. A list of some of the usual problems is described below with the explanation for their occurrence and correction. 4.3.1 Dirty Connector It is very important that the connectors are cleaned prior to any connection.
  • Page 36 Dirt impact on sensor signal To clean an optical interrogator adapter, use an appropriate cleaner (1-FSCLEANER from HBK or similar). Insert it in the optical adapter, number in Fig. 4.8, and press it against the inside of the connector to clean.

  • Page 37: Broken Connector

    A broken sleeve will look as shown in Fig. 4.9. Fig. 4.9 Broken connectors To solve this problem you should contact HBK FiberSensing. 4.3.3 Reflective Fiber Ending Even when all connections have been performed correctly, it may occur that the interroga­...
  • Page 38 There may also be the case that the fiber is cut, but not completely spread apart (e.g. the fiber is damaged in an area covered with glue). This will cause a Fabry-Pérot effect – the light will suffer multiple reflections inside the cavity creating sinusoidal background reflection.

  • Page 39: Fuse Failure

    Fuse Failure Electrical shorts on the power supply may cause problems to the interrogators. The Industrial BraggMETER DI on its Rack­Mountable format is directly connected to the 100­240 V power line meaning that it has no external protection. Replaceable fuses are available on the interrogator's back­side next to the power connector (number...

  • Page 40: Distance Effect

    4.3.6 Distance effect For sweeping laser based Optical Interrogators, such as the BraggMETER from HBK FiberSensing, there is an effect of the length of cabling between the interrogator and the sensor on the measured of the reflected measurement. This effect is a constant shift in the wavelength measurement that depends on the actual sampling rate of the optical module.
  • Page 41 Wavelength shift due to sweeping laser speed in MXFS Δλ + 2 @ 1.446 @ 102 @ d @ RepRate + * 1.0925 @ 10 @ d @ RepRate * 1 @ 0.9 @ 3 @ 10 Next table aim to illustrate the difference in a sensor readout (wavelength shift in pm) caused by the distance between the Interrogator and the sensor for the different sampling rates.
  • Page 42 Distance calculation using two different acquisition rates while acquiring the same sensor * λ SweepDirection @ DutyCycle @ c λ RepRate1 RepRate2 RepRate1 * RepRate2 2 @ n @ FullRange Where: d is the distance (in m) between the sensor and the measurement unit; λ...

  • Page 43: Remote Communications

    Fig. 5.1 TCP Communication Process Commands for the Industrial BraggMETER DI are sent by port 3500. All commands, except for Continuous Acquisition (see section 5.1.2 “Common Commands” on page 44), are received via the same port. Continuous Acquisition answers are retrieved via port 3365.

  • Page 44: Common Commands

    Queries the interrogator type and firmware revision. The return string is a list sepa­ " " rated by consisting of Manufacturer, Unit Name and Revision, Number of connec­ tors, Serial Number and Date. Example: Command :IDEN? Answer :ACK:HBK FiberSensing:FS22DI v3.0:08:046 840 200 626:20240318 FS22DI REMOTE COMMUNICATIONS...

  • Page 45: System Commands

    :STORe Stores the current interrogator acquisition settings to the internal configuration file. The gain and threshold values of each connector are stored. Example: Command :STOR Answer :ACK :RECAll Recalls previously saved interrogator settings from the internal configuration file. The command restores the gain and threshold values of each connector of the interroga­ tor to the values previously stored in the configuration file.
  • Page 46 :SYSTem:TIME:HH:MM:SS Sets the interrogator time. Sent format must be hours, minutes and seconds sepa­ rated by ":". Example: Command :SYST:TIME:14:26:10 Answer :ACK :SYSTem:DATE? Queries the interrogator date. The interrogator returns the year, month and day separated by ":". Example: Command :SYST:DATE? Answer :ACK:2011:09:23...
  • Page 47 :SYSTem:NTPSynchronization:DISAble Disables NTP synchronization on the interrogator. Example: Command :SYST:NTPS:DISA Answer :ACK :SYSTem:NTPIpaddress? Queries for NTP server IP address, NTP maximum offset and the NTP state. Retreives the NTP server IP address, maximum offset (default 10000μs) and status ( 1 = On, 0 = Off) separated by ":".

  • Page 48: Acquisition Commands

    5.1.4 Acquisition Commands :ACQUisition:STARt Starts the acquisition of the fiber Bragg grating sensors in all connectors of the inter­ rogator. This command can only be executed in the ready state (see section 3.6.4, subsection Operational States, for state description). Example: Command :ACQU:STAR Answer...
  • Page 49 :ACQUisition:CONFigure:THREshold:CHANnel:X? Queries the threshold value for the peak detection algorithm in the X connector of the interrogator. The threshold is a value from 200 to 3200. Example: Command :ACQU:CONF:THRE:CHAN:0? Answer :ACK:1000 :ACQUisition:CONFigure:RATE:R Sets the sampling rate value R of the interrogator for all connectors. The sampling rate can assume the following values: 1000, 500, 200, 100, 50 (S/s).
  • Page 50 Bragg sensors are separated by a comma ",", the row of values ends with car­ riage return "\r" and line feed "\n". The FS22 - Industrial BraggMETER DI does not reply, if no sensor is detected. The number of connectors can be "A" to retrieve the power of all the sensors in all the connectors simultaneously.
  • Page 51 :ACQUisition:OSATrace:CONTinuous:STARt:CHANnel:X Continuously acquires the optical spectrum trace in the connector X of the interroga­ tor. This command is only available when the acquisition rate is set at 50 S/s. The acknowledged reply to this command is sent through port 3500 while data is sent through port 3365.
  • Page 52 :ACQUisition:WAVElength:CONTinuous:STARt Continuous acquisition of the peak wavelengths of the fiber Bragg grating sensors in all connectors of the interrogator. Wavelength data is is sent continuously with updated time data at every second. On each second one data packet with time stamp information is sent, followed by the n data packets corresponding to each sample within that second.
  • Page 53 :ACQUisition:WAVElength:CONTinuous:NTPSyncronization:STARt Continuous acquisition of wavelengths of all the connectors of the interrogator. This command is sent via port 3500 and corresponding data is received through port 3365. The received data is in binary format and contains information on Timestamp, Wave­ length values of all sensors from all optical connectors with the following structure: 1) Fixed Header (30 bytes) [always sent independently of the payload content (even without sensors)]:...
  • Page 54 Example: Command :ACQU:WAVE:CONT:NTPS:STAR Answer Port 3500 » :ACK Port 3365 » Data Structure SYNC (#0) TIMESTAMP (LWORD1+LWORD2) LENGTH (24 bytes + payload length) * Sn - Number of sensors on optical connector n OC0_WL0** OC7_WL0 OC0_WL1 OC0_WL1 ** OCn_WLy – Wavelength number y on optical connector n Fig.

  • Page 55: Braggmonitor Di Software Details

    Using windows display settings with the size of text not set to 100% might compromise the correct visualization of BraggMONITOR DI software. 6.2.2 Software Installation To install HBK FiberSensing BraggMONITOR DI Software on a PC, please follow the described steps: Download BraggMONITOR DI from our website and store it on the PC; Run Setup.exe;...

  • Page 56: Software Uninstall

    Information When the operating system is Windows Vista or higher, open setup.exe as an Administra­ tor with a right-click (see Fig. 6.1). Fig. 6.1 Run as administrator (once) Follow the described steps and press finish. The installation is now completed. You will need to restart the computer before using the application.
  • Page 57 To configure the application to always open with Administrator privileges, right-click on the software icon and select "Properties > Compatibility". Check the box "Run this pro­ gram as administrator" (see Fig. 6.2). Fig. 6.2 Set Run as administrator automatically FS22DI BRAGGMONITOR DI SOFTWARE DETAILS...

  • Page 58: Braggmonitor Di User Interface

    BRAGGMONITOR DI USER INTERFACE The BraggMONITOR DI Software graphical interface is divided in two different areas (Fig. 7.1): Graphical Bar General Bar Fig. 7.1 BraggMONITOR DI User interface General Bar The General Bar, which is always active, is where the main acquisition actions can be per­ formed.
  • Page 59 Fig. 7.4) by the user. Fig. 7.4 Define IP Address Information The FS22 – Industrial BraggMETER DI interrogators default IP is 10.0.0.150 which is the IP Address used in the first connection with the BraggMONITOR DI Software. FS22DI BRAGGMONITOR DI USER INTERFACE...

  • Page 60: Acquisition

    7.1.1 Acquisition Start Acquisition Press the “start” button (number in Fig. 7.2) to start acquisition. This will start the acqui­ sition and representation of the measured values for all optical connectors. The button will change from start to stop status (Fig. 7.5). Fig.
  • Page 61 Fig. 7.6 Data file example Open Data in Microsoft Excel To import the data file to a Microsoft Office Excel Workbook proceed as follows: Once Microsoft Excel is opened, press button “From Text" from menu Data>Get External Data (see Fig. 7.7) and select the file data file. Fig.
  • Page 62 Fig. 7.8 BraggMONITOR DI Data files Fig. 7.9 Excel text Import Wizard Step 1 FS22DI BRAGGMONITOR DI USER INTERFACE...
  • Page 63 Fig. 7.10 Excel text Import Wizard Step 2 Fig. 7.11 Excel text Import Wizard Step 3 FS22DI BRAGGMONITOR DI USER INTERFACE...

  • Page 64: Software And Interrogator Information

    Fig. 7.12 Data location selection Stop Acquisition To stop acquisition, press the “stop” button (number in Fig. 7.2). 7.1.2 Software and Interrogator Information General information about the software and the interrogator can be displayed by pressing the “info" button (number in Fig.
  • Page 65 7.2.1 Graphical View On the Graphical View, graphical representation of 1000 measured values can be found every second (number in Fig. 7.13). Fig. 7.13 Graphical View Select the sensors to be displayed using the drop-down arrow next to the legend (number in Fig.
  • Page 66 Fig. 7.14 Numerical View 7.2.3 Spectral View The Spectral View tab is only accessible when data acquisition is stopped. This tab represents the spectral response of the sensors connected to the interrogator. The full spectrum contains approx. 7020 data points corresponding to the reflected opti­ cal power in dBm from 1500 nm to 1600 nm with an approx.
  • Page 67 Fig. 7.15 Spectral View The Spectral View can only represent one connector at a time. Connector selection can be performed on number in Fig. 7.15. Important Whenever the spectral view is active, the sampling rate of the interrogator is set to 50 S/s, reverting back to the previously operating sampling rate when another tab is selected.
  • Page 68 around 3000 and no FBG side lobes are detected as peaks. These settings can be config­ ured independently for each optical connector. Gain Gain is directly related to the optical power used on the mea­ surement of the optical connector. The gain value should be raised to overcome losses on the network.
  • Page 69 Fig. 7.16 FFT View 7.2.5 Configuration Acquisition configuration allows sensors' configuration for the acquisition of engineering values to be performed. To accomplish this step correctly, the sensors' calibration sheets might be needed. The BraggMONITOR DI allows editing, saving and opening sensor configurations. The configuration corresponds to the identification and the definition of the calibration for­...
  • Page 70 Fig. 7.17 Configuration Clear Configuration If an old configuration is set, it is possible to clear it and start a new configuration by pressing the “new” button (number in Fig. 7.17). Be aware this operation will discard all previous unsaved configurations of all connectors. AutoScan When autoscan (number in Fig.
  • Page 71 Example: CH0S001 corresponds to the 1 sensor of optical connector 0. Test Configuration Test configuration (number on Fig. 7.17) allows the user to check the current values from each sensor according to their configuration. Information Error code will be displayed as -998 when no sensor is found within the defined range. Change IP The interrogator's IP address can be changed easily by using the BraggMONITOR DI soft­...
  • Page 72 File Options File Interval (number in Fig. 7.17) - Each saved file has a limited length defined by time. The maximum time interval for each data file can be defined on this drop down list. When this interval is over, the data file is created and named with the timestamp of the last recorded measurement.
  • Page 73 Fig. 7.20 Sensor Settings Sensor Name Sensor's identification field. It is not possible to have two sen­ sors with the same name. Central Wavelength Reference wavelength from which wavelength shift (Δλ=x) is (CWL) calculated. Range Safety bands defined to avoid crosstalk between sensors. Each sensor has its own operation range.
  • Page 74 Formula Function defining the correlation between the wavelength shift (Δλ=x) and the engineering values. x corresponds to the difference between the measured wave­ length (λ) at each instant and the defined central wavelength (λ Here it is possible to set a formula manually, although it is also possible to copy and paste from other locations.
  • Page 75 In the configuration file the information is divided by optical connector identified between brackets (number in Fig. 7.22). For each sensor there are four columns, namely: Sen­ sor's Name, Central wavelength (nm), Range (nm) and Formula separated by semicolons (as in numbers 2, 3, in Fig.
  • Page 76 Fig. 7.23 Load configuration 7.2.6 SCPI Interface This tab allows the user to send Standard Commands for Programmable Instruments (SCPI) to the equipment. Please refer to section 5 “Remote Communications” on page 43 for a list of the commands available to communicate with the interrogator. Commands are inserted on the command line (number in Fig.
  • Page 77 Fig. 7.24 SCPI Interface Each time a new command is sent, a shortcut at the scroll down box is created, as shown in Fig. 7.25. Fig. 7.25 Previously sent comments selection Important When the user leaves the SCPI Interface tab, the interrogator status is changed and sched­ uled acquisitions are disabled.
  • Page 78 ® CATMAN SOFTWARE The FS22DI interrogator is compatible with the powerful catman Easy and catman AP software (from version 4.2 with limitations and from version 5.2 with all specs) allowing the simple combination of optical and electrical signals on the same interface. Version Limitations catman v4.2...
  • Page 79 Fig. 8.1 Preparing a new DAQ project within catman Device configuration Start a new measurement. FS22DI ® CATMAN SOFTWARE...
  • Page 80 Fig. 8.2 Fig 8.1 Starting a new DAQ measurement project in catman The channel list will be populated with the previously set definition for each device. A pop-up warning that spectrum should be checked and adapted appears. This verification is important as the previously set definitions might not be true for the current network setup.
  • Page 81 Fig. 8.3 Pop-up for Optical Spectrum visualization and optical channels definition Press Configure device. Fig. 8.4 Configure device button Adjust Gain levels. For a well-defined gain value, the highest peak should be close to the maximum power without saturating. Saturation of the signal can be identified by the shape of the spectrum that appears cut at the top.
  • Page 82 Fig. 8.5 Configuring each connector’s gain and threshold A good Threshold value disregards all sidelobes and peak imperfections while granting a large area of the FBG peak above (the number of points on the trace interferers with the peak detection algorithm performance). Refer to section “4.2 Definitions” on page 31 for further support.
  • Page 83 Assign sensors from the database. Information HBK Optical Sensors Database is divided into interrogator categories as the sensor config­ uration communication with de device defers from model to model. For FS22DI open the optical sensors for FS22 section of the database.
  • Page 84 Fig. 8.7 Optical sensors on the database Acquisition and visualization With the prepared channel list, you are ready to start an acquisition job. Remember that some sensors might require zeroing (for example strain sensors) and others must not be zeroed if an absolute measurement value is needed (for example temperature sensors). Setting up visualization panels for real time data display is also very simple.
  • Page 85 FS22DI ® CATMAN SOFTWARE...
  • Page 86 FS22DI ® CATMAN SOFTWARE...
  • Page 87 FS22DI ® CATMAN SOFTWARE...
  • Page 88 HBK - Hottinger Brüel & Kjaer www.hbkworld.com info@hbkworld.com...

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