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User Manual

VARIO

luxx

MRU GmbH, D-74172 Neckarsulm

89 / 129



A Symbol appears in the Display

►

Press OK.



The directory [serial number] Logg was created on the USB-Stick.



The log files are saved in the directory [serial number].



After copying, the display shows "File(s) successfully copied".

►

Touch OK.

NOTE

If the analyser is operated for a long time, the copying

process can take a long time.

Copying single log data

►

Insert a USB-stick into the analyser.

►

Open the menu Service.



See also chapter 9.1 Open menu Service, Page 86.

►

Press Internal log settings.



A window appears.

►

Press FILE BROWSER



A selection list appears.

Содержание VARIOluxx

Страница 1: ...VARIOluxx USER MANUAL 9442EN...

Страница 2: ...manual 2022 by MRU No part of this manual my be published in any form print photocopy electronic media or any other publication form without a written approval by the publisher All user trade marks a...

Страница 3: ...ypical application of flue gas analysis However unusual high concentration levels of single gas components might lead to a reduced measurement accuracy of other gas components and to a temporary chang...

Страница 4: ...n 20 4 1 Commissioning 20 4 2 Operating panel 20 4 3 Charging the battery 21 4 4 Switching on the analyser 22 4 5 Switching off the analyser 22 4 6 Turn Display 22 4 7 Set the analyser to standby mode...

Страница 5: ...uring point 52 Operating temperature 53 Power supply 53 Opening the transport bag 53 Plug in Temperature sensor 54 Switch on warm up phase zero point 55 Repeated Zero point 56 Automatic zero point 56...

Страница 6: ...ervice values 86 9 3 Performing Device selftest 87 9 4 Internal log settings 88 Copying all log data 88 Copying single log data 89 Export NDIR Factors 91 10 Info 92 10 1 Open menu Info 92 10 2 Calling...

Страница 7: ...id NiHM Battery113 14 4 RS485 Extern Option 114 14 5 Screw adapter onto HPI Probe Option 115 15 Appendix 116 15 1 Error diagnosis regarding the measuring instrument 116 15 2 Condensate alarm 117 Conde...

Страница 8: ...ore DANGER Identifies an immediate impending hazard that if ignored will result in severe bodily injuries or death WARNING Identifies an immediate impending hazard that if ignored may result in severe...

Страница 9: ...documents to when handing the analyser over to others 2 1 Intended use The Analyser VARIOluxx is designed for the gas analysis of flue gases as they are emitted from gas oil burners engines or heating...

Страница 10: ...in upper case letter only i e NO2 2 2 About us The analyser is produced by the MRU GmbH in Neckarsulm Germany Founded in 1984 a medium sized company that is specialised in developing producing and mar...

Страница 11: ...x MRU GmbH D 74172 Neckarsulm 11 129 MRU GmbH Fuchshalde 8 12 74172 Neckarsulm Obereisesheim GERMANY Tel 49 71 32 99 62 0 Front office Tel 49 71 32 99 62 61 Service Fax 49 71 32 99 62 20 Email info mr...

Страница 12: ...ment tasks such as pres sure and temperature measurement or measurement of flow veloc ity For an overview on all available options please refer to the company s home page or sales representatives 3 2...

Страница 13: ...gas pump 7 CO purge solenoid valve 8 NOX protection filter 9 Box for electrochemical sen sors 10 Vent pump 11 Infrared NDIR bank 12 Acrodisc PTFE filter 13 Sample flow sensor 14 Gas cooler 15 Diff pr...

Страница 14: ...alog inputs 4 20 mA 7 Mains power supply Front side left 8 Sample gas filter 9 Condensate outlet port Hose connection DN 4 6 10 Sample gas outlet port VENT Hose connection DN 4 6 11 Fresh air inlet po...

Страница 15: ...el temperatures up to 1 700 C Viton Teflon with and without heated pre filter with and without heated gas sampling line probe tubes in different lengths A complete list of available probes can be foun...

Страница 16: ...nt 1 Probe handle 2 Probe tube 3 Fast locking coupling 4 Probe cone 5 Cable plug 14 pin 6 Heated hose line 7 Cable coupler 5 pin 8 Fast locking coupling 9 Filter lock Check the probe filter before and...

Страница 17: ...ng hose with 110 volts but with limited heat capacity DANGER Risk due to improper use Risk of death due to electric shock Do not operate a 110V heating hose with 230V See also chapter 15 6 General Ins...

Страница 18: ...3 7 Unheated Gas sampling probe 1 Filter lock 2 Fast locking coupling 3 Cable coupler 5 pin 4 Cable plug 14 pin 5 Fast locking coupling 6 Unheated hose line 7 Probe cone 8 Probe tube 9 Probe handle C...

Страница 19: ...low through the gas feed pump is measured and regulated to the nominal value by the analyser If the pump capacity is not sufficient to reach the flow of the nominal value an alarm is issued If the flo...

Страница 20: ...N and power supply are switched on In the event of an error the Power LED lights red The device runs through a start routine of 30 minutes The start routine includes self test warm up of the NDIR benc...

Страница 21: ...measurements in battery mode Carry out only data processing and setting work in battery operation 1 Power on and reset 2 Reserve 3 Reserve 4 LED display mains operation battery charging mode 5 Reserve...

Страница 22: ...witch off the analyser Touch the Context menu 19 on the display A selection list appears Touch Turn unit off A message appears Touch YES The analyser shuts down Alternatively you can switch off the an...

Страница 23: ...ou have left the standby mode the analyser will start up again The analyser will display a message that a zeroing may be useful Touch the Context menu 19 on the display A selection list appears Touch...

Страница 24: ...ss for one second A selection list appears Select if you want to go back to the home screen or to measure 4 9 Create screenshots You can create screenshots and save them on a USB Stick Insert a USB St...

Страница 25: ...personalized settings can be entered These settings can be changed at any time 5 1 Open menu Settings Press Settings A list appears Select the desired menu item 5 2 General settings Open the menu Sett...

Страница 26: ...ppears Setting Range Description Language Select analyser language Country fuel type By changing the country the O2 ref erence values settings are lost The fuel list is reset Similarly country specifi...

Страница 27: ...PT The set time and date are shown in the display NOTE Note that the time setting is limited to 14 hours The analyser displays a corresponding message Select a valid date 5 4 Device settings Open the...

Страница 28: ...tored zero point See also chapter Use last va lid zero point Page 57 Source zero point gas Setting from which source zero point gas is to be sucked in for zero point measurement See also chapter Selec...

Страница 29: ...a gradual drying out of the gas cooler or subsequent components The analyser offers with this menu item the possibility to recommend or even start a new zeroing based on the water measurement HINWEIS...

Страница 30: ...t the time after the zero point has been taken when water monitoring is to be started Confirm the value with Wait until zeroing is completed After zeroing H20 reference ppm value is displayed Monitori...

Страница 31: ...the allowed duration of deviation min is exceeded the status changes to A second overrun during the allowed duration of deviation was detected Perform new zeroing A message appears You have the possib...

Страница 32: ...that a permanent averaging is performed Open the menu Settings See also chapter 5 1 Open menu Settings S 25 Press Averaging A window appears Set the desired Time unit You can choose between minutes a...

Страница 33: ...displayed in an Auto measurement to check a measurement for plausibility If averaging is activated the average values are displayed in the measure ment window NOTE Please note that average values are...

Страница 34: ...rvals Open the menu Settings See also chapter 5 1 Open menu Settings S 25 Press Interval measurements A window appears Press SET TIME SET AMOUNT to set the duration of the Standby time the duration of...

Страница 35: ...te deactivate whether the probe temperature should be moni tored during heating Go to the menu Measure Press the Context menu A selection list appears Press Start interval logging A window appears Set...

Страница 36: ...n on the remaining time of the measurement and the re maining measurement cycles is displayed After the set measurement time has been completed a flushing process is initiated After the flushing proce...

Страница 37: ...r the set standby time has elapsed a warm up phase is initi ated After the warm up phase has elapsed a zeroing is initiated After taking the zero point another measurement is started The process repea...

Страница 38: ...ings See also chapter 5 1 Open menu Settings S 25 Press Programs A window appears Select the program you want to change the name for A keybar appears Enter the desired Program name Exit the menu Press...

Страница 39: ...g output channel is assigned a measured variable and an output range Setting channel Open the menu Settings See also chapter 5 1 Open menu Settings S 25 Press Analog output setup 4 20mA A window appea...

Страница 40: ...higher end value corre sponding to 20 mA If the measured value rises above the set value the value remains at 20 mA Open the menu Settings See also chapter 5 1 Open menu Settings S 25 Press Analog ou...

Страница 41: ...point measurement ends is displayed The following settings are possible Hold The outputs kept the last values from before zeroing 2 mA The outputs change to 2 mA to indicate the zero point Open the me...

Страница 42: ...mA A window appears Scroll to graphic representation of the pin assignment of the 4 20 mA interface The setting is saved 5 10 Analog input setup 4 20mA There are 4 Analog inputs 4 20 mA available Each...

Страница 43: ...urand is displayed 5 11 Connecting analyser with WIFI WLAN Insert a WLAN Stick into the Analyser Open the menu Settings See also chapter 5 1 Open menu Settings S 25 Press WIFI A window appears Switch...

Страница 44: ...e desired WLAN Connection A window appears Enter the WLAN password Press OK A connection to the WLAN network is established A WLAN symbol appears in the display Touch the WLAN icon to see the WLAN IP...

Страница 45: ...U4win in this example 192 168 43 53 See also Chapter 15 4 Connecting analyser with MRU4win Page 111 5 12 Getting information about the network Open the menu Settings See also chapter 5 1 Open menu Set...

Страница 46: ...ess Network A window appears Set the switch to Static IP The fields for IP Adress Subnetmask Gateway and Primary DNS become enabled You can assign a static IP address Press OK A window appears Choose...

Страница 47: ...n local conditions Plug a USB Bluetooth converter into the USB port of the analyser Switch on the analyser Plug the second USB Bluetooth converter into the switched on PC The middle LED Connect should...

Страница 48: ...e 1113 Device Slave ID Slave ID of the analyser In this example the Slave ID is 1 Serial TCP Serial Comport The converter creates a new Comport Please enter this Comport in MRU4Win In this example the...

Страница 49: ...The connection is established 5 15 Default settings You can reset the analyser to factory default NOTE Note that when the analyser is reset to factory default all individual settings are lost Open th...

Страница 50: ...gases Measurement program The measured value window can be freely set with regard to the displayed measured values Further measuring programs The measurement window for gas analysis can be configured...

Страница 51: ...ured value You can insert the selected measured value in place of the selected value field The previously selected value field moves accordingly Touch replace or insert Setting zoom Touch the menu Mea...

Страница 52: ...nd released into the ambient air Only use the measuring device in well ventilated spaces Setting up the measuring point Place the analyser on a stable surface Unroll the heating hose completely Ensure...

Страница 53: ...pter 13 1 Technical data Page 102 Power supply The analyser can be operated with an internal battery to warm up the in strument or to use internal instrument functions A mains connection is required f...

Страница 54: ...eckarsulm Plug in Temperature sensor Plug the temperature sensor into the T AIR connector 17 See also chapter 3 4 Connectors Page 14 Open the ventilation flap and position the temperature sensor as sh...

Страница 55: ...on and the analyser takes the zero point with fresh air After the zeroing the analyser is ready for operation If the ambient air is contaminated during the last two minutes of zeroing the zero point...

Страница 56: ...nual zero point measurement Touch the menu Measure Touch the Context menu 19 A selection list appears Press Zero point gas Confirm the zeroing of the gas sensors The Zero point gas starts The Zero poi...

Страница 57: ...itiated zeroing The time grid is shifted The next automatic zeroing takes place at 8 pm You can display the time of the next automatic zeroing Touch A window appears If the automatic zeroing is switch...

Страница 58: ...ero point gas is sucked in optionally via the fresh air nozzle or the probe Open the menu Settings See also Chapter 5 1Open menu Settings Page 25 Press Device settings A window appears Press Source ze...

Страница 59: ...hen the battery is discharged the instrument can be operated completely on the power supply Connections to the analyser See Chapter 3 4 Connectors Page 14 Connect the gas sampling probe to Sample gas...

Страница 60: ...at the fresh air inlet 11 If necessary connect a hose here to bring in such fresh air In the case the option active vent is installed note that the sample gas at the exit may be diluted with ambient a...

Страница 61: ...o your sample gas Touch OK The setting is saved Setting CO purge limit Electrochemical sensors operate within a specified range and may be dam aged due to overload In the application of flue gas the C...

Страница 62: ...from the gas path by a valve If the value falls below 20 of the threshold value during flushing the CO sen sor is again supplied with sample gas Starting the measurement Touch the menu Measure The mea...

Страница 63: ...until you switch off the analyser See also Chapter Recalling stored measurements Page 71 Select channels for graphic display You can select a maximum of eight channels and have them displayed graphica...

Страница 64: ...d that you want to replace A window appears Select the desired measurand Press OK The measurand is replaced You have the possibility to display two measurands simultaneously as a curve Set check marks...

Страница 65: ...mbH D 74172 Neckarsulm 65 129 Press the graphic symbol A diagram appears If necessary touch to stop the graphical display The measurement will be continued in the background If necessary touch to cont...

Страница 66: ...ndow appears Touch the Context menu 19 A selection list appears Touch Start logging A setting window appears Set the desired measurement duration Set the desired interval Specify whether a mean value...

Страница 67: ...If necessary press the gear wheel symbol to display other measurands in graphical form You can also export or print the data of the automatic measurement Insert a USB stick into the analyser Touch th...

Страница 68: ...he meas ured values are kept constant in the display Immedi ately before the end of the zeroing the real measured values are displayed again Stopping Auto measurement The Auto measurement can be stopp...

Страница 69: ...n store up to 1 000 different sites Sites can be created in the instrument and be changed Measurements are stored by assigning them to a site Measurements can be on this occasion singles flue gas meas...

Страница 70: ...x 70 129 MRU GmbH D 74172 Neckarsulm The site is saved Changing site data Touch the menu Sites A selection list appears Select the desired site A window appears Change the desired data Touch STORE The...

Страница 71: ...u Sites A selection list appears Select the desired site A window appears Press Delete The site is deleted Recalling stored measurements Stored measurement can be displayed individually for each site...

Страница 72: ...ed measurement The measurement window appears Delete stored measurements There are two ways to delete measurements You can delete measurements individually You can select several measurements and dele...

Страница 73: ...s MEASUREMENTS The stored measurements are displayed Delete single measurement Press A message appears Press YES The selected measurement is deleted Delete several measurements Select the measurements...

Страница 74: ...s CSV file is a simple text format for a database table The analyser uses a semicolon as value separator CSV is a simple file format that is widely supported so it is often used to move tabular data b...

Страница 75: ...ASUREMENTS The stored measurements are displayed You have the option to export measurements as single files You have the option of exporting several measurements in one file Select the desired measure...

Страница 76: ...exported indi vidually or all selected measurements are exported in one file A message appears Select if you want to export with header in file The directory 1113Export is created on the USB stick The...

Страница 77: ...8 Extras 8 1 Open menu Extras Press Extras A list appears Select the desired menu item 8 2 History Open the menu Extras See also chapter 8 1 Open menu Extras S 77 A selection list appears Press Histo...

Страница 78: ...osen time period is displayed graphically If necessary press A window appears You have the possibility to change the displayed channels and to have them displayed graphically You have the possibility...

Страница 79: ...tions For this you will receive an option file from the manufacturer Copy the options file onto a USB stick NOTE You can also save the option files in subfolders The an alyser will search the folder s...

Страница 80: ...sired Options Press LOAD CHECKED OPTIONS A message appears Press OK The option was successfully set Perform a restart After the restart the option is available 8 4 Connections You can view the connect...

Страница 81: ...t the desired time for the automatic device start NOTE Note that you can set an automatic device start for max 24 hours into the future A message is displayed if the time interval is too long Press AC...

Страница 82: ...l hoses and hose connections from the probe tip to the gas inlet of the analyser for leaks Open the menu Extras See also chapter 8 1 Open menu Extras Page 77 Press Instrument leak test A window appear...

Страница 83: ...0 Exit the window 8 7 Printing measurement results In the menu Printer you can select the type of connection between an optional printer and the analyser You have 2 options to connect the printer USB...

Страница 84: ...Go to the menu Measurement The measurement window appears Press the Context menu 19 A selection list appears Press Print The measurement is printed out with a slight delay Printing stored measurement...

Страница 85: ...rsulm 85 129 Press MEASUREMENTS The stored measurements are displayed Press the desired measurement The measurement window appears Press the context menu 19 A selection list appears Press Print The me...

Страница 86: ...e values This screen displays a number of internal parameters and their values In case of unexpected behaviour of the analyser it might be helpful tocom municate those values to our worldwide service...

Страница 87: ...ser Open the menu Service See also chapter 9 1 Open menu Service Page 86 Press Selftest device A window appears Press START SELFTEST The Device Selftest starts As long as the Device selftest is runnin...

Страница 88: ...l parameters at regular intervals to allow for an optimized support from experienced service staff These files can be cop ied to a connected USB stick and sent via email if required to do so The data...

Страница 89: ...tory serial number After copying the display shows File s successfully copied Touch OK NOTE If the analyser is operated for a long time the copying process can take a long time Copying single log data...

Страница 90: ...he desired log file appears in the window Press COPY TO EXTERN USB STICK A window appears The copy process is started The directory serial number Logg was created on the USB Stick The log files are sa...

Страница 91: ...a USB stick Insert a USB stick into the analyser Open the menu Service See also chapter 9 1 Open menu Service Page 86 Press Internal log settings A window appears Press EXPORT NDIR FACTOR The NDIR fac...

Страница 92: ...g up device info In the menu Device info you can for example display the serial number the firmware version and version information for installed mod ulesand installed options Open the menu Info See a...

Страница 93: ...User Manual VARIOluxx MRU GmbH D 74172 Neckarsulm 93 129 Exit the window Press OPTIONS A window appears The installed options are displayed...

Страница 94: ...analyser the total usage of certain analyser components and the remaining usage time until the next maintenance Open the menu Info See also chapter 10 1 Open menu Info S 92 Press Device usage A windo...

Страница 95: ...oric acid 10 After every measurement Remove the gas sampling tube from the analyser so that the hose can dry Check the filter in the probe head Replace the filter if necessary Occasionally Clean the p...

Страница 96: ...e work 12 1 Information of the analyser components Information about analyser components is helpful in case of service or in quiries Touch A selection list appears Choose the desired component of the...

Страница 97: ...also save the data package in subfolders The analyser will search the folder structure on the USB stick up to the second hierarchy level Save the data package in the folder structure above if the opti...

Страница 98: ...pleted After the loading process is completed a message appears Press OK The valid data packages found are displayed NOTE If no data package is displayed save the received data package again on a USB...

Страница 99: ...4172 Neckarsulm 99 129 Select the desired data package A window appears Select parts of the data package that you want to update Press LOAD CHECKED PARTS A message appears To conclude the update proce...

Страница 100: ...e of single modules Go to the window Software update See also chapter Update main firmware Page 97 Perform the steps as described in the chapter Update main firmware until the following window appears...

Страница 101: ...User Manual VARIOluxx MRU GmbH D 74172 Neckarsulm 101 129 Press YES The update is started After the update has been performed successfully a message ap pears Press OK Please restart the system...

Страница 102: ...gas cooler and heated sample line 1 LiIon Battery Li Ion 48 Wh 6 h optional capacity of battery pack 2 LiIon Batterys 96 Wh optional capacity of battery pack NiMH Batterys 26Wh Charge time Li Ion 48...

Страница 103: ...ife Measuring Range 0 25 Vol Resolution 0 01 Vol Abs Accuracy 0 2 Vol Response Time T90 20s Years expected lifetime air 5 Years Electrochemical Sensor CO H2 compensated Nom Measuring Range 0 10000 ppm...

Страница 104: ...Measuring Range 0 200 ppm Overload Range 1000 ppm Resolution 1 Accuracy abs reading 5 ppm 5 0 200 ppm 10 200 ppm Response Time T90 40s Option NO2 low Measuring Range 100 ppm Resolution 0 1 ppm Accurac...

Страница 105: ...racy 0 1 Vol Flue gas temperature TA Measuring Range with high grade steel probe pipe 0 800 C Measuring Range with Inconel probe pipe Short time only up to 20 mins 0 1100 C 0 1350 C Accuracy abs readi...

Страница 106: ...ion and alarm internal gas flow measurement Gas outlet Vent port passiv 3 mm Optional active req for long VENT lines or pressurized Vent 13 5 Gas cooler strategy The gas cooler strategy depends on the...

Страница 107: ...Nm3 NO2 Velocity based on differential pressure measurement with Pitot tube v Typical measuring range 3 m s 100 m s Accuracy at 3m s 1 m s Accuracy 12 m s reading 1 Resolution 0 1 m s Absolute pressur...

Страница 108: ...ge www mru eu Germany O2max 20 96 Fuel CO2max A1 A2 B Test gas 0 0 0 00 0 00 0 000 Natural gas LL 11 8 0 37 0 66 0 009 Natural gas E 12 1 0 37 0 64 0 009 EL heating oil 15 4 0 50 0 68 0 007 S heating...

Страница 109: ...ement further measured values areavail able v flow Flow rate Connect analyser to Pitot tube The following sketch shows an example of the connection of the analyser to a Pitot tube with thermocouple Po...

Страница 110: ...eter for gas flow measurement Press the menu Measure The measurement window appears Press the Context menu 19 A selection list appears Press Gas flow measurement A setting window appears NOTE Note tha...

Страница 111: ...can carry out measurements up to 15 NOTE Note that measurements with a connected Acid Dosing Unit APE are not recommended because phosphoric acid can freeze at low temperatures With the option Operati...

Страница 112: ...uring measurement Connecting heating box Insert the connection hose into the condensate outlet in the heating box 2 Insert the connecting hose into the condensate outlet on the analyser 4 1 Heating bo...

Страница 113: ...d of a LiIon Battery The optional NiHM Battery is intended for air travel because the Regulations for the transport of LiIon Battery during air travel can often be problematic Note that the NiHM Batte...

Страница 114: ...upply unit is removed during operation 14 4 RS485 Extern Option RS485 interface with modbus RTU protocol for far distance data transfer over cable Electrical connections 1 A 2 B 3 GND 4 Connector to R...

Страница 115: ...adapter you have the possibility to use heated probe tubes from other manufacturers The adapter is available in 3 8 inch and 3 4 inch sizes When screwing the adapter onto the HPI probe pay attention...

Страница 116: ...le line Take care to unroll the heated sample line before operating it Please wait pump is off Warm up has not been completed yet Measurement not started as instrument is in warm up phase Wait until w...

Страница 117: ...ring mode If the condensate self help was not successful and there is still waterin the gas duct you must start a drying of the gas duct manually Condensate self help With condensate self help you do...

Страница 118: ...ually A corresponding message is displayed and an acoustic signal sounds CAUTION Acid from the condensate Acid burns may result from weakly acidic liquids from the condensate If you come into contact...

Страница 119: ...measurement is started automatically 15 3 Switching off the analyser in case error If the touch screen does not respond you have two options for switching off the analyser Press the button during fla...

Страница 120: ...nect the analyser to your PC via the RS485 interface Open the menu Device settings See also chapter 5 4 Device settings Page 27 Set Modbus Slave ID to 1 Please note that the Modbus slave ID is a conse...

Страница 121: ...he Settings menu Set Modbus Slave ID to 1 Please note that the Modbus slave ID is a consecutive number If the number 1 is already assigned assign Modbus Slave ID 2 etc to the analyser You can now crea...

Страница 122: ...Activate Modbus Click Create Modbus Device A window appears You can connect the analyser with MRU4win via a serial interface or via a TCP IP connection Select the desired connection type under Serial...

Страница 123: ...has the Modbus Slave ID 2 the Slave ID in MRU4win must be set to 2 If necessary enter your IP address if you want to set up a TCP IP con nection In this example the LAN address is 192 168 44 38 See Ex...

Страница 124: ...Activate WLAN Hotspot android Install VNC viewer Configure VNC viewer Connect to device Activate VNC on Analyser Use remote control via Android device NOTE Please note that due to the increased comput...

Страница 125: ...reasons it shall be supported by a cable duct along the line The heated hose line shall be supported close to the analyser cabi net and probe housing for example by using a separate stilt There are no...

Страница 126: ...MRU GmbH D 74172 Neckarsulm Bending radius of heated sampling lines The picture below shows the minimal bending radius ATTENTION Falling below the bending radius will reduce life time of the sampling...

Страница 127: ...15 7 Spare parts Part number Spare part 56879A PTFE Round filter 61158 Probe filter sintered metal 2 m 61157 Probe filter sintered metal 20 m 10825 Mineral wool filter element 59799 O Ring 16 x 1 5 6...

Страница 128: ...User Manual VARIOluxx 128 129 MRU GmbH D 74172 Neckarsulm 16 Declaration of conformity...

Страница 129: ......

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