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mru NOVAplus biogas User Manual

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NOVAplus biogas
USER MANUAL
9472EN-BIO

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Summary of Contents for mru NOVAplus biogas

  • Page 1 NOVAplus biogas USER MANUAL 9472EN-BIO...
  • Page 2 USER MANUAL NOVAplus BIOGAS Producer: Legal notices / Intellectual property rights comments Original user manual © 2022 by MRU No part of this manual my be published in any form (print, fotocopy, electronic media or any other publication form) without a written approval by the publisher.

  • Page 3: Table Of Contents

    USER MANUAL NOVAplus BIOGAS Table of content Information for product and safety ..........7 1.1. Safety manual ....................7 1.2. Safety precautions ..................7 1.3. Ensure safety ....................8 1.4. Important general information .............. 10 1.5. User guideline for rechargeable batteries ......... 11 Introduction ..................
  • Page 4 USER MANUAL NOVAplus BIOGAS Setting O reference ..................32 5.11. Defining user fuels type ................33 5.12. Defining measurement windows ............34 5.13. Configuring zoom window ..............34 5.14. Changing measurement program names .......... 35 Preparing measurement ..............36 6.1.
  • Page 5 USER MANUAL NOVAplus BIOGAS Exporting combustion measurements............57 Exporting differential pressure measurements ........58 8.4. Measurements in Data storage ............. 58 Viewing Measurements ..................58 Deleting Measurements ................... 59 Transferring measurements to SD-Card (Option) ........60 Extras / Adjustments ..............61 9.1.
  • Page 6 USER MANUAL NOVAplus BIOGAS 6 / 84 MRU GmbH, D-74172 Neckarsulm...

  • Page 7: Information For Product And Safety

    USER MANUAL NOVAplus BIOGAS 1 Information for product and safety 1.1. Safety manual All general information and safety precautions of MRU products are listed in the supplied separate safety manual. Therefore, this manual must be read and observed before the first use of the instrument .

  • Page 8: Ensure Safety

    Especially concentration levels as high as several % for single gas components may affect the measurement of other gas components at ppm level. Those applications need to be discussed with MRU in detail 8 / 84...
  • Page 9 This area classification is country specific, please observe and notice it. • MRU instruments may be operated in hazardous areas zone 2 by skilled users obeying local guidelines e.g. by using LEL gas detectors.

  • Page 10: Important General Information

    USER MANUAL NOVAplus BIOGAS 1.4. Important general information This analyzer is not designed to be used for continuous measurements. Before using the analyzer verify the condition of the various parts of the analyzer, such as the probe, the ambient air conditions, the condensate separator, star filter and the connectors for damage and/or blockages.

  • Page 11: User Guideline For Rechargeable Batteries

    USER MANUAL NOVAplus BIOGAS 1.5. User guideline for rechargeable batteries NOTE The rechargeable batterie is installed inside the ana- lyzer and is not accessible to the end customer. How- ever, the following instructions must generally be ob- served when handling lithium-ion rechargeable batter- ies.

  • Page 12: Introduction

    USER MANUAL NOVAplus BIOGAS 2 Introduction • This manual enables you to understand and safely operate this MRU Analyzer. • Please read this manual with great vigilant and get familiar with the product before using it. • This analyzer may only be operated by competent personnel and for its intended use.
  • Page 13 The analyzer must be used according to instructions for the intended use. Our analyzers are checked according to the following regulations: VDE 0411 (EN61010) and DIN VDE 0701 before they leave the MRU GmbH factory. MRU technical products are designed and manufactured according to DIN 31000/ VDE 1000 and UVV = VBG 4 of the professional guilds for fine mechanics and electrical engineering.

  • Page 14: About Us

    USER MANUAL NOVAplus BIOGAS 2.2. About us The analyzer is produced by the MRU GmbH in Neckarsulm, Germany (Founded in 1984), a medium sized company that specializes in devel- oping, producing and marketing high quality emission monitoring analyzers. MRU GmbH produces a wide range of instruments, from standard analyzers up to tailor made industrial analyzers.

  • Page 15: Packaging

    Hazardous waste must be returned to MRU prepaid. 2.5. Return of electronic equipment MRU GmbH is required to accept the return, for proper disposal, of all analyzers delivered after 13th of August 2005. Analyzers must be re- turned to MRU prepaid.

  • Page 16: Description

    USER MANUAL NOVAplus BIOGAS 3 Description 3.1. Gas flow diagram A partial volume of the biogas is sucked and analyzed using NDIR and electro- chemical sensors on its ingredients. Position Description Position Description Gas inlet Filter Differential pressure - 11...

  • Page 17: Remote Control Unit (Rcu)

    USER MANUAL NOVAplus BIOGAS 3.2. Remote control unit (RCU) Position Description Position Description Keypad Display Cover SD-card reader (only by using a MRU- SD-CARD we can assure the compatibility of all analyzer functions) USB port Eyes for shoulder strap Analyzer feet...

  • Page 18: Base Unit

    USER MANUAL NOVAplus BIOGAS 3.3. Base unit Position Description Position Description Aerial Filter unit for gas cooler ON-/OFF key button 16.1 Filter vessel Built-in speed printer 16.2 Star filter Gas outlet 16.3 Water stop filter (optional ) Connector T-gas 16.4...

  • Page 19: Connectors Depending On The Options (Gas Cooler)

    USER MANUAL NOVAplus BIOGAS NOTE * Note on filter holder Please note that the filter holder differs without option- ally installed water stop filter differs Filter holder without water stop Connectors depending on the options (gas cooler) Connector Models 1 pressure sensor...

  • Page 20: Gas Sampling Probes

    USER MANUAL NOVAplus BIOGAS 3.4. Gas sampling probes The Analyzer is available with different probes, both with fixed and ex- changeable probe tubes. A complete list of available probes can be found in the current price list of this analyzer.

  • Page 21: Operating

    USER MANUAL NOVAplus BIOGAS 4 Operating All information required to operate the analyzer is displayed as shown below. 4.1. Display Menu bar Function key bar Display panel Menu Measurement value, Zeroing active SD-Card in the slot Indication green Read- and write access...

  • Page 22: Keypad

    USER MANUAL NOVAplus BIOGAS 4.2. Keypad Description and function of the keys: ON / OFF By pressing the ON/OFF button the RCU will start up without delay. By pressing the ON/OFF button the base unit and the RCU (if RCU is placed in the charging doc) will start up.

  • Page 23: Connection Remote Control Unit (Rcu) To Base Unit

    USER MANUAL NOVAplus BIOGAS 4.3. Connection Remote control unit (RCU) to base unit Declaration of symbols Symbol Description No Bluetooth connection base unit to RCU Base unit is in the update mode (Press ON-key at the base unit for changing to the measurement...
  • Page 24 USER MANUAL NOVAplus BIOGAS NOTE Connection menu (the connection remote control <-> base unit is preconfigured) ► Press F1, to connect to the base unit with the RCU. NOTE The name consists of NOVAplus and the serial number of the base unit.

  • Page 25: Reset And Blink Codes

    USER MANUAL NOVAplus BIOGAS 4.4. Reset and Blink codes Reset of the RCU press ESC and ON/OFF- but- ton at the same time for a couple of seconds Reset of the base unit press ON/OFF- button for about ten seconds (LED...
  • Page 26 USER MANUAL NOVAplus BIOGAS NOVAplus Biogas The topic „Biogas meas- The Storage menu is The Extras menu is ex- urement“is a stand-ard explained in chapter 8 plained in chapter 9Ex- feature in every analyzer Data Storage, Page 50. tras / Adjustments, Page and is explained in chapter 7.2Performing...

  • Page 27: First Usage

    USER MANUAL NOVAplus BIOGAS 5 First usage After the analyzer has been inspected and is ready for start-up it can be switched on and personalized settings can be entered. These settings can be changed at any time. 5.1. Preparatory steps ►...

  • Page 28: Measurement Settings

    USER MANUAL NOVAplus BIOGAS 5.3. Measurement settings Gas cooler mode Full / Eco full: cooling up to approx. + 5 °C eco: cooling up to approx. 10 °C below ambient temperature (not under +5 °C!) Probe heating as needed /...

  • Page 29: Switch-On Protection

    USER MANUAL NOVAplus BIOGAS 5.4. Switch-On protection If activated and if ON key is pressed (possibly inadvertently), then the message: „3 seconds OK key press “displays. 5.5. Print-out settings The printout can be set in the Extra menu under the menu item analyzer settings.

  • Page 30: Bluetooth Settings

    USER MANUAL NOVAplus BIOGAS 5.6. Bluetooth settings If RemoteData, OnlineView or MRUConnect (PDA) with Bluetooth is used, the SLAVE move mode must be selected. The auto connect mode must be switched OUT. 5.7. Setting date and time ► Go to the Extras menu.

  • Page 31: Configuring Measurement Programs

    USER MANUAL NOVAplus BIOGAS 5.8. Configuring Measurement Programs Select one of the 6 configurable measurement programs. For each of the programs the following parameters can be configured: • CO ppm limit: adjustable value for the CO sensor protection. If the...

  • Page 32: Select Fuel Types And O2 Reference

    USER MANUAL NOVAplus BIOGAS 5.10. Select fuel types and O2 reference Whenever a measuring program for flue gas measurements is called, a fuel can be selected from a list. Which fuel is available can be selected from a maximum fuel type list.

  • Page 33: Defining User Fuels Type

    USER MANUAL NOVAplus BIOGAS ► Select the desired fuel. ► Press F3  The menu Info fuel type appears. ► Set the desired O2 reference. ► Press OK.  The set O2 reference is saved. 5.11. Defining user fuels type You can define four fuels to your individual needs.

  • Page 34: Defining Measurement Windows

    USER MANUAL NOVAplus BIOGAS 5.12. Defining measurement windows ► Start a measuring program. In this example Program 1, Nat gas heavy. ► Select one of three measurement windows ► Press the Menu Key  A selection list appears. ► Select Define measuring window.

  • Page 35: Changing Measurement Program Names

    USER MANUAL NOVAplus BIOGAS ► Press the Menu Key.  A selection list appears. ► Select Save measuring window. ► Press OK.  The change is saved. 5.14. Changing measurement program names In the menu Selection meas. program, the name of the measurement program van be changed.

  • Page 36: Preparing Measurement

    USER MANUAL NOVAplus BIOGAS 6 Preparing measurement 6.1. Ensure power supply The analyzer can be used with: 1. with the internal MRU battery (provided) 2. with the MRU battery charger (provided) External equipment may only be connected while the analyzer is switched off! 6.2.

  • Page 37: Operating Temperature

    USER MANUAL NOVAplus BIOGAS 6.5. Operating temperature If the analyzer has been stored at low temperatures, it will require some time to equilibrate to the ambient temperature before being switched on. If it does not equilibrate, condensation will occur inside the analyzer! If the temperature is out of its operation range you will see the follow- ing messages on the display.

  • Page 38: Automatic Zero-Point Setting

    USER MANUAL NOVAplus BIOGAS 6.7. Automatic zero-point setting NOTE The probe must not be in the exhaust gas during the zeroing ► Press the power button on the base unit.  The analyzer performs a zero point measurement automatically.  During zero point measurement, the -> 0.0 <- symbol flashes in the upper right corner of the display.

  • Page 39: Performing Measurement

    USER MANUAL NOVAplus BIOGAS 7 Performing measurement Every NOVAplus BIOGAS is capable of making a complete BIOGAS measure- ment. How to perform this is described below. 7.1. Select measuring program DANGER Rick due to toxic gases There is a risk of poisoning.

  • Page 40: Performing Biogas Measurement

    USER MANUAL NOVAplus BIOGAS NOTE You can start a measurement with the previously set measurement parameters directly from the Measurement menu. ►Press F1.  The measurement is started. 7.2. Performing Biogas measurement ► Go to the Measurement menu ► Select Biogas measurement.

  • Page 41: Flue Gas Measurement

    USER MANUAL NOVAplus BIOGAS 7.3. Flue gas measurement Measurement values can be organized on three pages, each page dis- playing 6 measurement values. The order of the display is operator settable. There are direct measured values available such as Oxygen and Temper-...

  • Page 42: Setting Co-Limit (Only With Optional Flue Gas Measurement)

    USER MANUAL NOVAplus BIOGAS 7.4. Setting CO-limit (only with optional flue gas measurement) If the CO limit value is exceeded, the colour of the measured CO values changes (red). 7.5. Storing measured values If in the function key bar "store" is indicated, you can store with the ac- companying function key F2 or F3 the measurement in the data memory.

  • Page 43: Last Measurement Values

    USER MANUAL NOVAplus BIOGAS To change the printer paper, you pull out the little plastic recessed grip (2) which is mounted on the transparent printer cover (1). Insert the new printer roll and let the end of the paper stick out of the printer (+/- half inch).

  • Page 44: Pressure Measurement

    USER MANUAL NOVAplus BIOGAS 7.9. Pressure measurement Pressure (4 values) is measured and saved to the selected measurement name. The actual measured value is displayed in the middle of the dis- play. The 4 measurement names can be changed as desired.

  • Page 45: Differential Temperature Measurement

     The menu Diff. temp. measurement appears.  The temperatures T1, T2 and the difference are displayed. NOTE The accuracy of the difference temperature measure- ment is guaranteed only on use of the MRU temperature sensors. 45 / 84 MRU GmbH, D-74172 Neckarsulm...

  • Page 46: Performing Measurements On Chp Units (Option)

    USER MANUAL NOVAplus BIOGAS 7.11. Performing measurements on CHP units (option) With the option BHKW you can perform flue gas measurements on CHP (Combined heat and power) plants. If this option is installed in the ana- lyzer there is an accessible Purafil-filter on the front of the analyzer. Due...

  • Page 47: Performing Auto-Measurement (Option)

    USER MANUAL NOVAplus BIOGAS 7.12. Performing Auto-measurement (Option) NOTE We recommend a regular zeroing of the sensors. During long-term measurements the sensors may drift, resulting in a lower measuring accuracy until the next zero point is taken. How long can be measured without drift depends on the ambient conditions and the gas concentrations.
  • Page 48 USER MANUAL NOVAplus BIOGAS Printout Settings Interval Interval Comment Total aver- function average age value the printout contains the mean values over interval and the Total average value the printout contains the last measured val- ues of the interval and the total average...

  • Page 49: Semi-Continuous Auto-Measurement Incl. Data Logger

    USER MANUAL NOVAplus BIOGAS Semi-continuous Auto-measurement incl. data logger A precondition for semi-continuous Auto- measurement is the option: Automatic zeroing and calibration of the analyzer art. no. 64198. The Auto-measurement must be activated by the operator in the meas- uring window via the menu key. Please select Auto-measurement.

  • Page 50: Data Storage

    USER MANUAL NOVAplus BIOGAS 8 Data Storage 8.1. Organizing data storage Basis of the data memory of the analyzer is a set of sites stored in the device. Every site exists of a unique site number and 8 freely usable text lines which can have, e.g., the address, customer name etc.

  • Page 51: Site Administration

    USER MANUAL NOVAplus BIOGAS 8.3. Site administration In the menu item “Sites administration” you are able • view all data of the stored sites • create new sites • change date of existing sites • delete sites In the device new created sites and changes in the data of a site will not transmit to the PC back.

  • Page 52: View Sites

    USER MANUAL NOVAplus BIOGAS View sites ► Go to the Storage menu. ► Select Site administration.  The menu Sites administration appears.  Each stored site is displayed on a page with the coloured site number and eight additional free text lines.

  • Page 53: Changing Sites

    USER MANUAL NOVAplus BIOGAS ► Select a line in which you want to search for content. In this example, the search is performed in line 2. ► Press F3.  A window appears. ► Enter the desired search term In this example the search term is John Example.

  • Page 54: Deleting Sites

    USER MANUAL NOVAplus BIOGAS Deleting sites You can delete sites individually or delete all sites simultaneously Deleting sites individually You can delete sites individually or delete all sites simultaneously ► Go to the Storage menu. ► Select Sites administration. ► Press F2.

  • Page 55: Data Transfer Using Sd Card (Option)

    USER MANUAL NOVAplus BIOGAS Data transfer using SD card (option) The data exchange format is CSV. A character-separated values (CSV) file is a simple text format for a database table. Each record in the table is one line of the text file. Each field value of a record is separated from the next by a character.
  • Page 56 USER MANUAL NOVAplus BIOGAS With this function you can Import Sites which have been created on a computer or another Analyzer. The File name must have the name “anlagen.csv“ (anlagen = German for sites) . The file has no column heading that means that the first line al- ready has user data.

  • Page 57: Exporting Sites

    USER MANUAL NOVAplus BIOGAS Exporting sites ► Go to the Storage menu. ► Select Sites onto SD card. ► Press OK.  The menu Sites onto SD card appears. ► Press F2.  The sites are exported. This function can be used for an analyzer back up or if you wish to sup- ply the analyzer information to a computer program or another ana- lyzer.

  • Page 58: Exporting Differential Pressure Measurements

    USER MANUAL NOVAplus BIOGAS The created file has a column header with the following information: Site number, Date/Time, Measuring program name, Fuel type, CO2max, O2reference, and all measured values that the analyzer can measure as well as the soot numbers, Derivate and T-Boiler.

  • Page 59: Deleting Measurements

    USER MANUAL NOVAplus BIOGAS  Then you receive first a page with context information to the stored measurement. Scroll with the arrow keys by the context in- formation of the stored measurements. ► With F2 = "measured value" are displayed the measured data of the stored measurement in detail, available in 3 measuring value pages, as they are defined in the measuring value window.

  • Page 60: Transferring Measurements To Sd-Card (Option)

    USER MANUAL NOVAplus BIOGAS Transferring measurements to SD-Card (Option) The analyzer offers the possibility to export all stored measurements to a SD card ► Go to the Storage menu. ► Select Measurements to SD card. ► Press OK. ► Select the desired measurement type.

  • Page 61: Extras / Adjustments

    USER MANUAL NOVAplus BIOGAS 9 Extras / Adjustments The analyzer is delivered in a standard software configuration which should cover most needs. However, there are many ways to tailor the settings to your individual needs if required. The possibilities are highly flexible and individual adaptable.
  • Page 62 – Logo installed. Printer Logo setting: As soon as the Logo has been installed and the printer type is set on MRU, the Logo print will be available in the menu “extras / settings (print Logo). 62 / 84...

  • Page 63: Service Calibration Menu

    Das Abgleich-Menü ist durch einen PIN-Code vor Eingriffen von nicht autorisierten Personen geschützt. Für den PIN Code setzen Sie sich mit einer MRU-Servicestelle (www.mru.eu) in Verbindung. Sollten Sie versehentlich die PIN-Code- Abfrage gestartet haben, dann drücken Sie die ESC Taste. Sie gelangen zurück in das Menü...

  • Page 64: Default Settings

    USER MANUAL NOVAplus BIOGAS 9.3. Default settings The analyzer will be reset to original delivery settings. NOTE With the default setting, all individual settings are lost . ► Go to the Extras menu. ► Select Default settings. ► Press OK.

  • Page 65: Service Values Rcu / Service Values Base Unit

    In this menu you will see all service values of the sensors and also other parameters. In case of a defect contact the MRU service department. The MRU service technician will ask you about these values or he will ask you to send them by fax or email.

  • Page 66: Performing Leak Test

    USER MANUAL NOVAplus BIOGAS 9.5. Performing leak test With the leak proof test, the system is checked by the device (incl. the condensate separator) up to the probe spike on undensity. The internal gas pump generates in addition a sub pressure which is measured over the built-in draft sensor and is observed for a period of 10 seconds.

  • Page 67: Contents Sd Card

    USER MANUAL NOVAplus BIOGAS If the leak proof test is not passed the probe must be checked including the hosing as well as the condensate separator. If no undensity is ascertained in these external parts the analyzer has to be checked in a service department (worldwide service departments see www.mru.eu).

  • Page 68: Contents Analyzer Info

    USER MANUAL NOVAplus BIOGAS 9.7. Contents Analyzer info Here you will find information about the analyzer and the installed op- tions. Options list remote control ► Go to the Extras menu. ► Select Device info remote control.  The menu Device info remote control appears.

  • Page 69: Self Diagnostics

    USER MANUAL NOVAplus BIOGAS 9.8. Self diagnostics The analyzer performs a self-diagnosis. The self-diagnosis provides a quick overview of the condition of the batteries and sensors. If the op- tion "Flow control" is installed, the current flow rate [l/min] can be dis- played.

  • Page 70: Maintenance And Care

    When next powered on, you will be reminded to the execution of the an-nual customer service. A complete service at an MRU service station (for MRU services station please see: www.mru.eu) contains the function control and calibration and/or cleaning of the fol-...

  • Page 71: Check/Replace Optional Water Stop Filter

    USER MANUAL NOVAplus BIOGAS 10.4. Check/replace optional water stop filter The water stop filter protects the analyzer from moisture. The water stop filter closes as soon as there is a risk that condensate is sucked into the analyzer. A closed water stop filter can be indicated, for example, by the fact that the flow rate is too low.

  • Page 72: Appendix

    USER MANUAL NOVAplus BIOGAS Appendix 11.1. Technical data General Data Deutsch Angabe English +5°C ... +45 °C / Betriebstemperatur Operating temperature 41 °F ... 113 °F Rel. Luftfeuchtigkeit bei Be- Rel. Humidity,non-condensing trieb, nicht-kondensierend -20°C ... +50°C / Lagertemperatur Storage Temperature -4°F ...

  • Page 73: Gas Conditioning And Sampling

    USER MANUAL NOVAplus BIOGAS Gas conditioning and sampling Deutsch Angabe English max. Unterdruckbereich der Gas- Max suction range gas 650 hPa pumpe pump typischer Gasdurchfluss 90 l/h gas flow typ. Condensate trap (non- Kondenstafalle (nicht-gekühlt) Standard cooled) Gaskühler Option Gas cooler Temperature Peltier Temperatur Peltierkühler (an Netz...
  • Page 74 USER MANUAL NOVAplus BIOGAS Elektrochemischer Sensor Electrochemical Sensor Nominaler Messbereich 0 - 1000 ppm Nom. Measuring Range Überlastbereich < 5000 ppm Overload Range Auflösung Resolution ± 5ppm / 5% (0 ... 1000 Genauigkeit abs. /vom Messwert ppm) Accuracy abs./reading 10% (> 1000...
  • Page 75 USER MANUAL NOVAplus BIOGAS Nicht-dispersive Infrarotmes- Non-dispersive Infrared sung (NDIR) Measurement (NDIR) Nominaler Messbereich 0 - 100 Vol% Nom. Measuring Range Auflösung Resolution ± 0,3 Vol% / Genauigkeit abs. /vom Messwert Accuracy abs./reading Ansprechzeit T90 < 35 s Response Time T90...

  • Page 76: Calculated Values

    USER MANUAL NOVAplus BIOGAS Temperature Measure- Temperaturmessung RCU ment RCU Messbereich -50 ... 1100 °C Measuring Range Thermoelement Typ K Mini Thermocouple Barometrischer Druck Barometric Pressure Messbereich 300 ..1200 hPa Measuring Range Genauigkeit ± 3 hPa Accuracy Calculated values...

  • Page 77: Data Communication

    USER MANUAL NOVAplus BIOGAS Externe Drucksensoren External pressure sensor #63684 Messbereich 5 bar Range Auflösung 1 mbar Resolution Genauigkeit abs. / vom Mess- 10 mbar / Accuracy abs. / reading wert #63685 Messbereich 25 bar Range Auflösung 1 mbar Resolution Genauigkeit abs./ vom Mess-...

  • Page 78: Analysis And Calculations

    These values are than referenced for the gross calorific value for con- densing boilers only. (efficiency > 100) The calculations of efficiency and exhaust losses are performed using Siegert’s formula. For further information please contact MRU GmbH. (www.mru.eu) 78 / 84 MRU GmbH, D-74172 Neckarsulm...

  • Page 79: Text Input

    USER MANUAL NOVAplus BIOGAS 11.3. Text input A number of texts and names can be changed to your own needs. (for example: the names of the user defined fuel types, site names, the names of the measurement programs) When you select the text input, the following window will pop up:...

  • Page 80: Firmware Update

    USER MANUAL NOVAplus BIOGAS 11.5. Firmware update NOTE During the Firmware update the LED of the ON-OFF switch (Base unit) is flashing and the Bluetooth connec- tion symbol changes the colour from blue to yellow. Don’t press during the update any key and remove the...
  • Page 81 USER MANUAL NOVAplus BIOGAS RCU: Please write down your Firmware-Version (e.g. 1.11.50)_________________________________ Please write down your serial number (e.g. 012072)____________________________ Base unit: Please write down your Firmware-Version (e.g. 1.09.01_____________________________ Please write down your serial number (e.g. 012039)____________________________ Do the following steps in order to update the firmware: ►...

  • Page 82: Troubleshooting

    USER MANUAL NOVAplus BIOGAS 11.6. Troubleshooting Troubleshooting the analyzer 1. Effect 2. Error indication 3. Cause 4. Solution Device cannot be LED behind the conden- Device does not re- Press ESC and ON simulta- switched off by sate separator is on and neously! act on any key.

  • Page 83: Declaration Of Conformity

    USER MANUAL NOVAplus BIOGAS Declaration of conformity 83 / 84 MRU GmbH, D-74172 Neckarsulm...

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