Buchi DuMaster D-480 Operation Manual
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Buchi DuMaster D-480 Operation Manual

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Operation Manual

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  • Page 1 DuMaster D-480 Operation Manual...
  • Page 2 Imprint Product Identification: Operation Manual (original) DuMaster D-480 11593626C en Publication date: 06.2016 BÜCHI Labortechnik AG Meierseggstrasse 40 Postfach CH­9230 Flawil 1 E­Mail: quality@buchi.com BUCHI reserves the right to make changes to the manual as deemed necessary in the light of experi­ ence; especially in respect to structure, illustrations and technical detail. This manual is copyright. Information from it may not be reproduced, distributed, or used for competitive purposes, nor made available to third parties. The manufacture of any component with the aid of this manual without prior written agreement is also prohibited.
  • Page 3 Copyright © BÜCHI Labortechnik AG All rights reserved Windows ® , Windows XP ® und Windows 7 ® are trademarks of Microsoft Corporation. MS-Excel ® und MS-Access ® are trademarks of Microsoft Corporation. Operating instructions DuMaster D-480 ©BÜCHI Labortechnik AG...

  • Page 5: Table Of Contents

    Formulae for blank value determination and compensation ............. 56 Formula for determining the daily factor ................... 57 Understanding the operating software ......................58 Basic functions of the operating software ..................59 Software user interface ........................60 Operating instructions DuMaster D-480 ©BÜCHI Labortechnik AG...
  • Page 6 Instructions for operating the furnace ..................... 105 Installation site requirements ......................105 Gases and chemicals to be provided ..................... 106 Start-up ............................107 Connecting peripherals ........................108 Connecting supply lines and waste gas lines ................. 109 Operating instructions DuMaster D-480 ©BÜCHI Labortechnik AG...
  • Page 7 Display print preview ........................155 Data backup and printing ....................... 156 Overview of export and import file formats ..................157 Exporting analysis data to MS Excel and viewing ................157 Exporting LIMS data........................158 Operating instructions DuMaster D-480 ©BÜCHI Labortechnik AG...
  • Page 8 Installing reaction tubes in the furnace and conditioning ..............228 Filling, removing and installing the absorption and drying tubes ............... 232 Filling the drying tubes ........................233 Removing and installing the drying tubes ..................235 Operating instructions DuMaster D-480 ©BÜCHI Labortechnik AG...
  • Page 9 Load sample pane (Dialog) ......................281 Delete sample pane (Dialog) ......................281 View > Gridview > Auto align (Command) ..................282 Configure graph view (Dialog) ......................282 View > Graphic > Auto align (Command) ..................283 Operating instructions DuMaster D-480 ©BÜCHI Labortechnik AG...
  • Page 10 Monthly logbook (Dialog) ....................... 323 Select period (Dialog) ........................324 Device configuration (Dialog) ......................325 Error handling (Dialog) ........................328 Sleep / wake-up function (Dialog) ....................329 Configure key value (Dialog) ......................330 Operating instructions DuMaster D-480 ©BÜCHI Labortechnik AG...
  • Page 11 Warranty on the furnace ......................... 342 Accessories, spare parts and consumables ....................343 Smallest workable unit ........................344 Required accessories ........................345 Optional accessories ........................346 Declaration of conformity ........................... 347 Declaration of conformity ....................... 348 Index Operating instructions DuMaster D-480 ©BÜCHI Labortechnik AG...

  • Page 13: Chapter 1 General

    C H A P T E R 1 General Purpose This chapter contains general topics of the document. In this chapter About this document ........................14 Display conventions ........................15 General information on the operating instructions .................15 Operating instructions DuMaster D-480 ©BÜCHI Labortechnik AG...

  • Page 14: About This Document

    The operating instructions identification number is: 11593627. Validity The operating instructions are valid for all instruments as from serial number: 16144001. Analyzer The operating instructions describe the basis type of the instrument D-480. Operating instructions DuMaster D-480 ©BÜCHI Labortechnik AG...

  • Page 15: Display Conventions

    Index entries always refer to the first page of the section in which the index term is found. Therefore, don't be confused if the index term does not appear on the first page but rather on one of the following pages. Operating instructions DuMaster D-480 ©BÜCHI Labortechnik AG...

  • Page 17: Chapter 2 Basic Security Settings

    Warning signs on the analyzer ......................22 Warning: changes to the instrument ....................23 Warning: unsuitable spare parts and consumables ...............23 Required user knowledge and skills ....................23 Required personal safety equipment .....................24 Warning notes during operation ....................24 Operating instructions DuMaster D-480 ©BÜCHI Labortechnik AG...

  • Page 18: Working With The Operating Instructions

    Minor injury (reversible) medium Caution Damage to property possibly Caution Instructions for disposal of consumables Rules Observe the following rules for disposal of consumables: Dispose of the consumables according to the relevant disposal categories.  Operating instructions DuMaster D-480 ©BÜCHI Labortechnik AG...

  • Page 19: Intended Use Of The Instrument

    You have the following ways of getting advice on difficult applications: You will find useful tips in the "Application notes" on the provided CD.  You will find also the "Application notes" section on the www.buchi.com website. Warning: residual risks Hot components inside the instrument During operation, the furnaces inside the instrument heat certain components to very high temperatures.

  • Page 20: Safety Devices In The Analyzer

    A thermocouple is defective or displays an illegal value.  The set threshold temperature is exceeded.  Instrument casing The instrument casing comprises the following, as seen from the top left in the picture: Right side door  Operating instructions DuMaster D-480 ©BÜCHI Labortechnik AG...
  • Page 21 In addition, the installation room should be well ventilated. Operating instructions DuMaster D-480 ©BÜCHI Labortechnik AG...

  • Page 22: Warning Signs On The Analyzer

    The following table explains the meaning of the warning signs: Warning sign Meaning Warning: hot surfaces Electric current hazard Note You are obliged to keep the warning signs on the instrument complete and in a legible condition. Operating instructions DuMaster D-480 ©BÜCHI Labortechnik AG...

  • Page 23: Warning: Changes To The Instrument

    Using the instrument Personnel with basic knowledge of chemistry and experience with laboratory work (e.g. laboratory worker). Maintaining the instrument Personnel authorized by BÜCHI. Repairing the instrument Personnel authorized by BÜCHI and having undergone training. Operating instructions DuMaster D-480 ©BÜCHI Labortechnik AG...

  • Page 24: Required Personal Safety Equipment

    Place the hot instrument tubes in a tube rack on a level, non-combustible  surface. Protect the hot instrument parts from unauthorized access.  Never leave the instrument unattended when the furnace has been pulled  out. Operating instructions DuMaster D-480 ©BÜCHI Labortechnik AG...
  • Page 25 Sharp pieces of broken glass! Warning When cold quartz or glass components break there is a risk of cut injuries. Wear the enclosed protective leather gloves and protective glasses when handling cold quartz and glass parts. Operating instructions DuMaster D-480 ©BÜCHI Labortechnik AG...
  • Page 26 Overheating if tube fillings are not appropriate for the operating mode! Caution Overheated tube fillings melt, run into the furnace area and destroy the furnace. Make sure that the tube fillings correspond to the selected operating mode. Operating instructions DuMaster D-480 ©BÜCHI Labortechnik AG...
  • Page 27 Sharp pieces of broken glass! Warning When cold quartz or glass components break there is a risk of cut injuries. Wear the enclosed protective leather gloves and protective glasses when handling cold quartz and glass parts. Operating instructions DuMaster D-480 ©BÜCHI Labortechnik AG...
  • Page 28 Please observe the following instruction: Improper changes impair proper operation of the system and may destroy system Caution components. Only configure the instrument if you are authorized to do so and observe the operating instructions. Operating instructions DuMaster D-480 ©BÜCHI Labortechnik AG...
  • Page 29 Mixing up gas inlets Please observe the following instruction: A mix-up of the gas inlets may lead to destruction of the instrument. Caution Connect the supply lines carefully and observe the diagram. Operating instructions DuMaster D-480 ©BÜCHI Labortechnik AG...

  • Page 31: Chapter 3 Product Description

    C H A P T E R 3 Product description Target group Personnel working with the instrument. Purpose This section provides general information about the instrument. In this chapter Analytical characteristics and technical specifications ..............32 Instrument design ..........................35 Operating instructions DuMaster D-480 ©BÜCHI Labortechnik AG...

  • Page 32: Analytical Characteristics And Technical Specifications

    3 - Product description Analytical characteristics and technical specifications Target group Personnel working with the instrument. Purpose This section lists the analytical characteristics and technical specifications. In this section Analytical characteristics .......................33 Technical specifications .........................33 Operating instructions DuMaster D-480 ©BÜCHI Labortechnik AG...

  • Page 33: Analytical Characteristics

    Professional or a newer version of Windows Professional Printer (optional) Software German or English Menu-driven Status display during analysis Real-time graphics Interfaces USB, RS232 /V24, Safety low voltage as per DIN IEC 380/VDE 0806/08.81 Operating instructions DuMaster D-480 ©BÜCHI Labortechnik AG...
  • Page 34 Protection class I, protective conductor connection Mode of protection IP20, installation in dry rooms only Noise level 55 dB (A), as per DIN 45635 section 1 Permissible ambient temperature Maximum: + 35 °C, minimum: + 15 °C Operating instructions DuMaster D-480 ©BÜCHI Labortechnik AG...

  • Page 35: Instrument Design

    This section describes the design of the instrument. In this section Front view ............................36 Rear view ............................37 Right side view ..........................37 Left side view ..........................38 Top view ............................39 Peripherals and their function ......................40 Operating instructions DuMaster D-480 ©BÜCHI Labortechnik AG...

  • Page 36: Front View

    The following picture shows the front view of the instrument with the front door closed: Front view, open The following picture shows the front view of the instrument with the front door opened: Legend: 1 Ball valve 2 Drying tubes 3 Furnace with heat protection cladding Operating instructions DuMaster D-480 ©BÜCHI Labortechnik AG...

  • Page 37: Rear View

    Right side view Right side view, closed The following picture shows the right side of the analyzer with the side door closed, as seen from the front: Legend: 1 Right side door 2 Main switch Operating instructions DuMaster D-480 ©BÜCHI Labortechnik AG...

  • Page 38: Left Side View

    3 Main switch Left side view Left side view, closed The following picture shows the left side of the analyzer with the side door closed, as seen from the front: Legend: 1 Left side door Operating instructions DuMaster D-480 ©BÜCHI Labortechnik AG...

  • Page 39: Top View

    3 Gas drying Top view Top view of the instrument The following picture shows the top view of the instrument: Legend: 1 Carousel cover 2 Carousel, sample magazine and cover ring 3 Instrument cover Operating instructions DuMaster D-480 ©BÜCHI Labortechnik AG...

  • Page 40: Peripherals And Their Function

    Functions of the peripherals The following table lists the functions of peripherals: Peripheral Function Requirement Operation of the instrument with operating software required Printer Print out measuring results, etc. recommended Balance Transmit sample weight recommended Operating instructions DuMaster D-480 ©BÜCHI Labortechnik AG...

  • Page 41: Chapter 4 Understanding The Instrument And Planning Its Use

    In this chapter Layout and mode of functioning ....................42 Processes in the instrument during a measurement..............46 Basic facts about working with the instrument ................49 Understanding the operating software ...................58 Data administration and data security ...................69 Operating instructions DuMaster D-480 ©BÜCHI Labortechnik AG...

  • Page 42: Layout And Mode Of Functioning

    This section describes what the instrument does, what the analysis parameters mean, and what happens in the instrument during an analysis. In this section Functional units ..........................43 The thermal conductivity detector (TCD) ..................45 Operating instructions DuMaster D-480 ©BÜCHI Labortechnik AG...

  • Page 43: Functional Units

    The following section describes what units comprise the instrument and what functions the individual units perform in the analysis procedure. Functional diagram The following diagram shows the basic setup of the instrument and its division into functional units. Operating instructions DuMaster D-480 ©BÜCHI Labortechnik AG...
  • Page 44 Gas drying (III) The following table describes the components of the unit and their functions: Part Name Function Removes H O from the measuring gas.  Drying tube, gas drying and water condenser Operating instructions DuMaster D-480 ©BÜCHI Labortechnik AG...

  • Page 45: The Thermal Conductivity Detector (Tcd)

    The TCD measuring signal is digitized, integrated and output by the instrument to the PC, where it is registered in the form of a measuring peak dependent on time,  and the integral is correlated with the absolute quantity of the respective measuring component  by calibration functions. Operating instructions DuMaster D-480 ©BÜCHI Labortechnik AG...

  • Page 46: Processes In The Instrument During A Measurement

    Sample insertion and initiation of measurement ................47 Substance digestion and preparation of the reaction gas mixture ..........47 Detection of measuring components and evaluation of the measuring signal .......48 Formulas for determining element concentration of analysis samples (Solids) ......48 Operating instructions DuMaster D-480 ©BÜCHI Labortechnik AG...

  • Page 47: Sample Insertion And Initiation Of Measurement

    (7), where the following processes take place: In the reductor, nitrogen oxides are quantitatively transferred to form molecular nitrogen.  Sulfur absorption takes place in the reductor.  Volatile halogen compounds are bound on brass wool.  Operating instructions DuMaster D-480 ©BÜCHI Labortechnik AG...

  • Page 48: Detection Of Measuring Components And Evaluation Of The Measuring Signal

    The N concentration of the sample is calculated from the computed absolute N content and the sample weight by the following formula: where: c = element concentration in [%] a = absolute element content in [mg] f = daily factor w = sample weight in [mg] Operating instructions DuMaster D-480 ©BÜCHI Labortechnik AG...

  • Page 49: Basic Facts About Working With The Instrument

    Background knowledge required for calibration ................51 Calibration curve calculation method criteria .................52 Calibration formulae ........................54 Routine measuring work ........................55 Formulae for blank value determination and compensation ............56 Formula for determining the daily factor ..................57 Operating instructions DuMaster D-480 ©BÜCHI Labortechnik AG...

  • Page 50: Instrument Equipment

    1 Plug with embedded 3.3g brass wool 2 53g Regainer (126 mm) 3 Quartz wool (10 mm) 4,180 g CuO + 15 g Pt catalyst (167 mm) 5 Corundum balls (28 mm) 6 Wire mesh ronde 7 Spacer Operating instructions DuMaster D-480 ©BÜCHI Labortechnik AG...

  • Page 51: Background Knowledge Required For Calibration

    For details on the various calibration curve calculation methods and when to use them, see Calibration curve computation method criteria (on page 52). Notes on performing calibration For details on practical implementation of calibration, refer to the section Performing calibration.  the calibration tables.  Operating instructions DuMaster D-480 ©BÜCHI Labortechnik AG...

  • Page 52: Calibration Curve Calculation Method Criteria

    Note: For better understanding the calibration graphics are shown in a simplyfied way. Linear calculation over the whole range The following picture shows an example in which a linear calculation over the whole range achieves acceptable calibration curve quality. Operating instructions DuMaster D-480 ©BÜCHI Labortechnik AG...
  • Page 53 The following picture shows an example in which a polynomial calculation over the whole range achieves acceptable calibration curve quality. Achievable calibration curve quality Process standard deviation "Proc-SD" and quality factor "r" serve as a measure of achievable calibration curve quality. Operating instructions DuMaster D-480 ©BÜCHI Labortechnik AG...

  • Page 54: Calibration Formulae

    For a polynomial of the 1st degree (linear equation), this quality factor corresponds to the correlation coefficient. The closer the correlation coefficient tends to 1, the better the fit. Operating instructions DuMaster D-480 ©BÜCHI Labortechnik AG...

  • Page 55: Routine Measuring Work

    Blank value determination of to allow for sample additives or packing sample additives and packing material Packing material  materials For details on determining blank values, cf. Types of blank value determination and their settings. Operating instructions DuMaster D-480 ©BÜCHI Labortechnik AG...

  • Page 56: Formulae For Blank Value Determination And Compensation

    The peak areas of the other samples are compensated with the aid of this formula: where: = compensated peak area comp a = measured peak area of the sample /b = blank value Operating instructions DuMaster D-480 ©BÜCHI Labortechnik AG...

  • Page 57: Formula For Determining The Daily Factor

    Daily factor The daily factor is computed according to this formula: whereas: f = daily factor = theoretical element concentration theo = element concentration computed actually Operating instructions DuMaster D-480 ©BÜCHI Labortechnik AG...

  • Page 58: Understanding The Operating Software

     In this section Basic functions of the operating software ..................59 Software user interface ........................60 Sample view ..........................61 Combi view ............................63 Status view ............................66 Right mouse button function ......................67 Operating instructions DuMaster D-480 ©BÜCHI Labortechnik AG...

  • Page 59: Basic Functions Of The Operating Software

    Analysis progress  Temperature of the reaction tubes  Gas flows and pressure conditions in the instrument  Due time/date of next maintenance event  Current detector display  Element content of current sample Operating instructions DuMaster D-480 ©BÜCHI Labortechnik AG...

  • Page 60: Software User Interface

    ... create or save analysis series in the form of a file and open existing analysis files.  ... cut, copy and paste sample data.  ... switch the sample view.  ... enable statistical and calibration functions.  Operating instructions DuMaster D-480 ©BÜCHI Labortechnik AG...

  • Page 61: Sample View

    The name of the user group to which the currently logged in user belongs is displayed on the  right. Sample view Introduction The following section describes what you can input in the sample view and what information you can get from the sample view. Operating instructions DuMaster D-480 ©BÜCHI Labortechnik AG...
  • Page 62 Indicates the current sample. red text Indicates a sample with a stop marker set. green text Indicates samples with reserved names for routine measuring work or calibration samples. black text Indicates all other samples. Operating instructions DuMaster D-480 ©BÜCHI Labortechnik AG...

  • Page 63: Combi View

    The following section describes the various views of the combi view and their information contents. By selecting the View > Toggle menu you can switch between the following combi views: Progression view (graph view)  Statistics view  Calibration view  Operating instructions DuMaster D-480 ©BÜCHI Labortechnik AG...
  • Page 64  The intake pressure  The output pressure  The detector output signal  For details on configuring the analysis progression view, see Data backup and printing (on page 156). Statistics view Operating instructions DuMaster D-480 ©BÜCHI Labortechnik AG...
  • Page 65  respective calibration samples. The calibration coefficients computed according to the selected polynomial degree.  The correlation coefficient for the depicted calibration curve that allows you to assess the quality  of calibration. Operating instructions DuMaster D-480 ©BÜCHI Labortechnik AG...

  • Page 66: Status View

    Displays the following current values of the detector unit: the current height of the current measuring peak.  Temperatures Displays the current temperatures of the following units as a bar chart: Combustion tube  Post combustion tube  Reductor  Operating instructions DuMaster D-480 ©BÜCHI Labortechnik AG...

  • Page 67: Right Mouse Button Function

    If the statistics view is active in the combi view you can press the right mouse button to display the Configure view and Include/exclude sample commands: Command Meaning Opens the "Configure statistics view" dialog. See Configure statistics Configure view view. Operating instructions DuMaster D-480 ©BÜCHI Labortechnik AG...
  • Page 68 In the "Specify upper and lower calibration range" dialog you can right-click to set the dividing line between the upper and lower calibration range. Position the cursor in the right place and then press the right mouse button. See Specifying the lower and upper calibration range. Operating instructions DuMaster D-480 ©BÜCHI Labortechnik AG...

  • Page 69: Data Administration And Data Security

    This section describes what options the system offers with regard to data administration and data security. In this section Laboratory information and management system (LIMS) ..............70 Conditions for operating the LIMS ....................70 21 CFR Part 11 functionality ......................71 Versioning .............................72 Linking the analyzer and software ....................72 Operating instructions DuMaster D-480 ©BÜCHI Labortechnik AG...

  • Page 70: Laboratory Information And Management System (Lims)

    If you change the LIMS settings, you must therefore adjust the LIMS program appropriately. The data sent to LIMS are tab-separated. The LIMS program must be able to interpret this  correctly. Operating instructions DuMaster D-480 ©BÜCHI Labortechnik AG...

  • Page 71: 21 Cfr Part 11 Functionality

    (for example after sending the document by e-mail). It is thus possible to ascertain whether the data contained are authentic. Operating instructions DuMaster D-480 ©BÜCHI Labortechnik AG...

  • Page 72: Versioning

    The program can only be operated in combination with the analyzer if the serial number matches the software licence number. This ensures that the analyzer is always operated together with the same software and the settings recorded in the logbook. Operating instructions DuMaster D-480 ©BÜCHI Labortechnik AG...

  • Page 73: Chapter 5 Work Performed By The System Administrator

    Setting up user administration .......................80 Defining interfaces .........................83 Editing analysis data ........................86 Performing checks .........................88 Working with the database ......................91 Ways of optimizing the use of the analyzer ...................96 Performing other administrator tasks ...................100 Operating instructions DuMaster D-480 ©BÜCHI Labortechnik AG...

  • Page 74: Installing And Updating The Software

    If the CD/DVD does not start automatically, start it by running setup.exe on the CD/DVD.  Select the desired language.  The installation wizard is displayed. Click Next and follow the steps of the installation wizard.  Operating instructions DuMaster D-480 ©BÜCHI Labortechnik AG...

  • Page 75: Configure Analyzer

    This section describes what the instrument does, what the analysis parameters mean, and what happens in the instrument during an analysis. In this section What can you modify in the configuration? ..................76 Defining logon timeout ........................76 Creating new sections ........................77 Operating instructions DuMaster D-480 ©BÜCHI Labortechnik AG...

  • Page 76: What Can You Modify In The Configuration

    Click OK and quit the operating software.  Restart the operating software as required.  Operating instructions DuMaster D-480 ©BÜCHI Labortechnik AG...

  • Page 77: Creating New Sections

    Click OK and quit the operating software.  Restart the operating software as required.  Operating instructions DuMaster D-480 ©BÜCHI Labortechnik AG...

  • Page 78: Defining Lims Export Settings

    Target group Personnel with good knowledge of the operating system and administrative settings. Purpose This section enables you to define export settings for LIMS as system administrator. In this section LIMS export settings ........................79 Operating instructions DuMaster D-480 ©BÜCHI Labortechnik AG...

  • Page 79: Lims Export Settings

    The following are set for LIMS: What data to send.  Whether the data is transferred via interface or network.  The interface settings.  What instrument the data belong to.  See LIMS settings (on page 319). Operating instructions DuMaster D-480 ©BÜCHI Labortechnik AG...

  • Page 80: Setting Up User Administration

    Personnel with good knowledge of the operating system and administrative settings. Purpose This section enables you to set up the user administration as system administrator. In this section User administration ........................81 Recommendations for user administration ..................81 Granting authorizations .........................81 Operating instructions DuMaster D-480 ©BÜCHI Labortechnik AG...

  • Page 81: User Administration

    Granting authorizations Background The instrument software offers the possibility to assign the access of menu commands to different user groups, so that individual menus can be invoked only by persons who are authorized accordingly. Operating instructions DuMaster D-480 ©BÜCHI Labortechnik AG...
  • Page 82 Click OK and quit the operating software.  Restart the operating software as required.  Operating instructions DuMaster D-480 ©BÜCHI Labortechnik AG...

  • Page 83: Defining Interfaces

    This section enables you to define various interfaces as system administrator. In this section Defining the analyzer / PC interface ....................84 Defining the LIMS / PC interface ....................84 Defining the balance / PC interface ....................85 Operating instructions DuMaster D-480 ©BÜCHI Labortechnik AG...

  • Page 84: Defining The Analyzer / Pc Interface

    Click OK in the "LIMS settings" dialog. Your settings are saved and the dialog is closed.  Dialog details Details on the "LIMS settings" dialog can be found in LIMS settings (on page 319). Operating instructions DuMaster D-480 ©BÜCHI Labortechnik AG...

  • Page 85: Defining The Balance / Pc Interface

    Click OK and quit the operating software.  Restart the operating software as required.  Dialog details Details on the "Device configuration" dialog can be found in Device configuration (on page 325). Operating instructions DuMaster D-480 ©BÜCHI Labortechnik AG...

  • Page 86: Editing Analysis Data

    This section describes when it makes sense to edit analysis data and to what extent this is possible. In this section When does it make sense to edit analysis data? ................87 Limits for modifying analysis data ....................87 Consequences of modifying analysis data ..................87 Operating instructions DuMaster D-480 ©BÜCHI Labortechnik AG...

  • Page 87: When Does It Make Sense To Edit Analysis Data

    > Recalculate. The changes include: Manual blank value input.  Subsequent review of calibration, specifying that standard samples should be displayed as  monitor samples and no longer as calibration samples. Changing the sample name.  Operating instructions DuMaster D-480 ©BÜCHI Labortechnik AG...

  • Page 88: Performing Checks

    Personnel with good knowledge of the operating system and administrative settings. Purpose This section enables you to perform various checks as system administrator. In this section Checking documents for authenticity .....................89 Signing documents ........................89 Viewing the logbook ........................90 Operating instructions DuMaster D-480 ©BÜCHI Labortechnik AG...

  • Page 89: Checking Documents For Authenticity

    Click Sign. The program checks whether you are authorized to sign the document. The result is  displayed in a message window:: "GOOD_PASSPHRASE" indicates that you are authorized to create the signature. The signature has been created. Operating instructions DuMaster D-480 ©BÜCHI Labortechnik AG...

  • Page 90: Viewing The Logbook

    In the "Select period" dialog, use the arrows of the corresponding fields to set the year and month  and then click OK. The desired period - if available - is displayed in the logbook.  Operating instructions DuMaster D-480 ©BÜCHI Labortechnik AG...

  • Page 91: Working With The Database

    This section enables you to perform various database tasks as system administrator. In this section Database ............................92 Administrative work on the database .....................92 Defining the autoexport directory ....................93 Database backup...........................93 Starting the database backup ......................94 Reorganize database ........................94 Reloading an old database file ......................95 Operating instructions DuMaster D-480 ©BÜCHI Labortechnik AG...

  • Page 92: Database

    File > Export/Import > Export and File > Export/Import > Import menu functions it is possible to transport documents "out of" the database and to transport external documents "into" the database. Restoring the database "Restore" reloads an old database file and irrevocably deletes the current data. Operating instructions DuMaster D-480 ©BÜCHI Labortechnik AG...

  • Page 93: Defining The Autoexport Directory

    X hours  once at a certain time  Start backup manually  Auto-save The document currently open is automatically saved to a temporary file every 3 minutes if it is changed. Operating instructions DuMaster D-480 ©BÜCHI Labortechnik AG...

  • Page 94: Starting The Database Backup

    Reorganization removes all sample data and the contents of the logbook from the database file, but retains the other data such as settings, coefficients, etc. Safety instruction Strictly observe the safety instruction "Working with the database" under Warning notes during operation (on page 24). Operating instructions DuMaster D-480 ©BÜCHI Labortechnik AG...

  • Page 95: Reloading An Old Database File

    Click OK. This closes the operating software.  Restart the operating software as required.  Further information Further information can be found in: Restore database (on page 269).  Operating instructions DuMaster D-480 ©BÜCHI Labortechnik AG...

  • Page 96: Ways Of Optimizing The Use Of The Analyzer

    This section gives an overview of the ways in which you can optimize the use of the analyzer for your own particular application. In this section Optimizing basic instrument settings .....................97 Optimizing sample data editing .....................97 "Balance" weighing data input program ..................98 Optimizing data evaluation ......................99 Operating instructions DuMaster D-480 ©BÜCHI Labortechnik AG...

  • Page 97: Optimizing Basic Instrument Settings

    One method is used for numerous samples.  You need to input a daily factor for numerous samples.  You need to input a blank value for numerous samples.  See Input options (on page 315). Operating instructions DuMaster D-480 ©BÜCHI Labortechnik AG...

  • Page 98: Balance" Weighing Data Input Program

    PC via File > Export/Import > Import. One of the following conditions must be met for import: The analyzer is in standby mode, i.e. no analysis is currently running  or the analyzer is "sleeping".  Operating instructions DuMaster D-480 ©BÜCHI Labortechnik AG...

  • Page 99: Optimizing Data Evaluation

    Designing an analysis log See Configure report (on page 155). Printer setup See Printer setup (on page 101). Defining printer settings See Print (on page 263). Assessing the print view See Print preview (on page 264). Operating instructions DuMaster D-480 ©BÜCHI Labortechnik AG...

  • Page 100: Performing Other Administrator Tasks

    Personnel with good knowledge of the operating system and administrative settings. Purpose This section enables you to perform various tasks as system administrator. In this section Modifying the registration ......................101 Printer setup ..........................101 Operating instructions DuMaster D-480 ©BÜCHI Labortechnik AG...

  • Page 101: Modifying The Registration

    Define your settings in the "Properties" dialog and then click OK. Your settings are saved and the  dialog is closed. Click OK in the "Printer setup" dialog. Your settings are saved and the dialog is closed.  You have successfully setup the printer.  Operating instructions DuMaster D-480 ©BÜCHI Labortechnik AG...

  • Page 103: Chapter 6 Starting Up And Shutting Down The Instrument

    Personnel authorized by BÜCHI Labortechnik AG and having undergone training. Purpose This section enables you to start up or shut down the instrument according to instructions. In this chapter Setting up and starting up the instrument ..................104 Shutting down the instrument ......................114 Operating instructions DuMaster D-480 ©BÜCHI Labortechnik AG...

  • Page 104: Setting Up And Starting Up The Instrument

    Gases and chemicals to be provided ...................106 Start-up ............................107 Connecting peripherals ........................108 Connecting supply lines and waste gas lines ................109 Removing the transport protection....................110 Switching on ..........................112 Default instrument settings ......................112 Heating up the furnace ........................113 Operating instructions DuMaster D-480 ©BÜCHI Labortechnik AG...

  • Page 105: Rules For First-Time Start-Up

    Warranty on the furnace. Installation site requirements General requirements Observe the general installation site requirements: The analyzer must not be installed in areas with explosive atmosphere (in accordance with the  ATEX guideline). Good ventilation.  Operating instructions DuMaster D-480 ©BÜCHI Labortechnik AG...

  • Page 106: Gases And Chemicals To Be Provided

    The end of the waste gas line must discharge into the  open at a location protected from the wind. Gases and chemicals to be provided Gases and chemicals to be provided The following lists the gases and chemicals required. Operating instructions DuMaster D-480 ©BÜCHI Labortechnik AG...

  • Page 107: Start-Up

    Check the fillings of the required glass and quartz components. Replace filling if necessary. See  Filling the drying tube (on page 233).  Filling the combustion tube.  Filling the post combustion tube.  Operating instructions DuMaster D-480 ©BÜCHI Labortechnik AG...

  • Page 108: Connecting Peripherals

     A printer should be connected so that you can print out measuring results.  A balance should be connected, so you do not need to enter the sample weight by hand.  Operating instructions DuMaster D-480 ©BÜCHI Labortechnik AG...

  • Page 109: Connecting Supply Lines And Waste Gas Lines

    Connecting supply lines and waste gas lines Note The following section is part of initial start-up. All steps described in initial startup before connecting supply lines and waste gas lines must have already been performed. See Start-up. Operating instructions DuMaster D-480 ©BÜCHI Labortechnik AG...

  • Page 110: Removing The Transport Protection

     Check the fill level of the vessel regularly. Removing the transport protection Types of transport protections There are two types of transport protections: Furnace transport protection.  Water trap transport protection  Operating instructions DuMaster D-480 ©BÜCHI Labortechnik AG...
  • Page 111 Close the right side door and screw the big screw back in that keeps the door closed.  Removing the water trap transport protection Proceed as follows: Open the front door of the instrument.  Operating instructions DuMaster D-480 ©BÜCHI Labortechnik AG...

  • Page 112: Switching On

    Default instrument settings The default gas pressure and mass flow settings are listed below. The settings require the analyzer to be leak-free. intake pressure intake pressure is set to 2.5 bar at the delivery point. Operating instructions DuMaster D-480 ©BÜCHI Labortechnik AG...

  • Page 113: Heating Up The Furnace

    Heating up the furnace Note Note the following: The following section is part of initial start-up. All steps described in initial startup before "Heating up the furnace" must have already been performed. See Start-up. Operating instructions DuMaster D-480 ©BÜCHI Labortechnik AG...

  • Page 114: Shutting Down The Instrument

    This section enables you to shut down the instrument according to instructions. In this section Shutting the instrument down for short measuring breaks (standby) ...........115 Shutting the instrument down for long measuring breaks (switching off) ........115 Operating instructions DuMaster D-480 ©BÜCHI Labortechnik AG...

  • Page 115: Shutting The Instrument Down For Short Measuring Breaks (Standby)

    Quit the operating software. Execute the following command: File > Exit.  Switch off the analyzer and its peripherals.  Disconnect the analyzer from the mains. Disconnect the power supply plug. The instrument is  ready for long measuring breaks. Operating instructions DuMaster D-480 ©BÜCHI Labortechnik AG...
  • Page 116 6 - Starting up and shutting down the instrument In case the analyzer has to be transported, mount the corresponding transport protection(s)  again. Operating instructions DuMaster D-480 ©BÜCHI Labortechnik AG...

  • Page 117: Chapter 7 Using The Instrument

    This section enables you to perform measurements with the instrument. In this chapter Measurement settings .........................118 Preparing samples ........................123 Preparing measurement work .....................127 Performing measurement work ....................134 Preparing measuring data for evaluation ..................146 Working with documents ......................159 Operating instructions DuMaster D-480 ©BÜCHI Labortechnik AG...

  • Page 118: Measurement Settings

    Defining standard substances as factor and monitor samples ............120 Defining standard substances as calibration samples ..............120 Specifying the computation method for blank value and daily factor ...........121 Enabling/disabling acoustic signals .....................121 Configuring error handling ......................122 Operating instructions DuMaster D-480 ©BÜCHI Labortechnik AG...

  • Page 119: Defining Keywords For Blank And Conditioning Samples

    ... the permissible tolerance for each element in the "Tolerance [%]" fields (usually 5%).  Click Create. Your new standard sample will now be included in the list in the left area of the  dialog. You have now defined the standard substance.  Operating instructions DuMaster D-480 ©BÜCHI Labortechnik AG...

  • Page 120: Defining Standard Substances As Factor And Monitor Samples

    Open the "Standard samples display" dialog in the operating software by selecting Math. >  Standard samples. Select the option "Show as calibration sample (theoretical concentration)".  Click OK. This closes the dialog and saves your settings.  Operating instructions DuMaster D-480 ©BÜCHI Labortechnik AG...

  • Page 121: Specifying The Computation Method For Blank Value And Daily Factor

    Proceed as follows: Open the "Acoustic signals" dialog by selecting Options > Settings > Acoustic Signals.  Decide:  If you want to..switch on a signal, check the appropriate checkbox.  Operating instructions DuMaster D-480 ©BÜCHI Labortechnik AG...

  • Page 122: Configuring Error Handling

    If you want to abort the analysis after several non-critical errors, enter the number of errors in the  "No. of errors" textbox of the "Abort auto analysis" section. Enter 0 to ignore non-critical errors. Click OK. This closes the dialog and saves the settings.  Operating instructions DuMaster D-480 ©BÜCHI Labortechnik AG...

  • Page 123: Preparing Samples

    Personnel with basic knowledge of chemistry and experience with laboratory work, e. g. chemistry laboratory workers. Purpose This section enables you to prepare samples properly. In this section Sample preparation instructions ....................124 Determining sample weight ......................124 Showing or hiding the weight window ..................125 Packing samples .........................125 Operating instructions DuMaster D-480 ©BÜCHI Labortechnik AG...

  • Page 124: Sample Preparation Instructions

    Determining sample weight with known substances The following rule of thumb applies to determine the sample weight of known substances:  The sample weight should be as high as necessary and as low as possible. Operating instructions DuMaster D-480 ©BÜCHI Labortechnik AG...

  • Page 125: Showing Or Hiding The Weight Window

    Avoid loss of substance after weighing. Therefore, wrap the substance exactly in the foil and  close capsules gas-tight. Minimize air inclusions in the sample material as they distort the N value. Therefore, compress  sample packets and flush capsules free of air. Operating instructions DuMaster D-480 ©BÜCHI Labortechnik AG...
  • Page 126 Fill in the sample using a pipette or syringe.  Flush the capsule free of air with CO  Close the capsule air-tight.  Weigh the sample  Insert the capsule on the carousel.  Operating instructions DuMaster D-480 ©BÜCHI Labortechnik AG...

  • Page 127: Preparing Measurement Work

    Viewing method settings ......................129 Defining custom methods ......................129 Defining the Kjeldahl factor ......................130 Copy methods ..........................130 Settings for sample input ......................131 Importing weighing data ......................131 Prioritizing urgent samples ......................132 Optimizing sleep and wake-up behavior ..................132 Operating instructions DuMaster D-480 ©BÜCHI Labortechnik AG...

  • Page 128: Software Usage Rules

    If the menu command is not checked, the toolbar is hidden.  Waking up the instrument Waking up the instrument Proceed as follows: Wake up the analyzer by selecting System > Wake Up.  Operating instructions DuMaster D-480 ©BÜCHI Labortechnik AG...

  • Page 129: Viewing Method Settings

    Click Create. Your new method will now be included in the list in the left area of the dialog. You  have now defined the method. Click Close to close the dialog.  Operating instructions DuMaster D-480 ©BÜCHI Labortechnik AG...

  • Page 130: Defining The Kjeldahl Factor

    Click Create. Your new method will now be included in the list in the left area of the dialog. You  have now successfully copied and defined the method. Click Close to close the dialog.  Operating instructions DuMaster D-480 ©BÜCHI Labortechnik AG...

  • Page 131: Settings For Sample Input

    ... "Fill blank values to last sample": The blank value input for the first sample is entered for  all subsequent samples. Click OK. This closes the dialog and saves the settings.  Importing weighing data Importing weighing data Proceed as follows: Operating instructions DuMaster D-480 ©BÜCHI Labortechnik AG...

  • Page 132: Prioritizing Urgent Samples

    To do so, select the radio button next to "Sleep at sample No." in the "Sleep" section. In the box next to it, enter the sample number at which you want the instrument to sleep; it corresponds to the first conditioning sample. Operating instructions DuMaster D-480 ©BÜCHI Labortechnik AG...
  • Page 133 To do so, check the checkbox next to "Continue after wake-up if there are samples".  Click OK. This closes the dialog and saves the settings. The conditioning samples will be  processed the next time the instrument wakes up. Operating instructions DuMaster D-480 ©BÜCHI Labortechnik AG...

  • Page 134: Performing Measurement Work

    Checklist for blank value / conditioning and daily factor measurements ........139 Checklist for real sample measurement ..................140 Types of blank value determination and their settings ..............141 Determining blank values ......................141 Determining the daily factor ......................142 Stopping continuous analysis ......................144 Operating instructions DuMaster D-480 ©BÜCHI Labortechnik AG...

  • Page 135: Values For Oxygen Dosing

     occurred. These settings are optimal for this matrix and sample weight. Check whether oxygen dosing is generally usable. To do so, measure several known samples of  similar matrix. Operating instructions DuMaster D-480 ©BÜCHI Labortechnik AG...

  • Page 136: Performing Measurements

    Move the empty carousel to zero position. To do so, open the "Set carousel position" dialog in  the operating software by selecting System > Sample Position. Select the radio button next to "Reference run" and click OK. The carousel moves to zero  position. Prepare the samples.  Operating instructions DuMaster D-480 ©BÜCHI Labortechnik AG...
  • Page 137 Before changing the position of the carousel, always remove all samples from the carousel. Proceed as follows: Move the empty carousel to zero position. To do so, open the "Set carousel position" dialog in  the operating software by selecting System > Sample Position. Operating instructions DuMaster D-480 ©BÜCHI Labortechnik AG...

  • Page 138: Performing Routine Measuring Work

     to allow for sample additives or additive sample additives and packing packing material materials Packing  material For details on determining blank values, cf. Types of blank value determination and their settings. Operating instructions DuMaster D-480 ©BÜCHI Labortechnik AG...

  • Page 139: Checklist For Blank Value / Conditioning And Daily Factor Measurements

    Go through the following list: Are the operating gases on?  Are the furnaces at setpoint temperature?  Is pressure OK?  Display on the PC "Press. Input": 1300 - 1350 mbar  Operating instructions DuMaster D-480 ©BÜCHI Labortechnik AG...

  • Page 140: Checklist For Real Sample Measurement

    "MFC O2": as selected in the method  Does the desiccant still have sufficient capacity?  At least the last third should still be unused.  Have the maintenance intervals been observed? Check:  The drying tube.  Operating instructions DuMaster D-480 ©BÜCHI Labortechnik AG...

  • Page 141: Types Of Blank Value Determination And Their Settings

    The name of the blank sample must be defined in Options > Settings > Keywords. Ex works, "Blnk" is already defined as the key word of the blank sample. If you want to change this, you must define the new name via Options > Settings > Keywords. Operating instructions DuMaster D-480 ©BÜCHI Labortechnik AG...

  • Page 142: Determining The Daily Factor

    During routine measuring work, once a day.  When the carousel is full daily factor samples are measured at the end (and between if  necessary) in order to check the condition of the instrument. Operating instructions DuMaster D-480 ©BÜCHI Labortechnik AG...
  • Page 143 If you selected a certain number of samples for the calculation, check "Use standard samples  only". Click Yes to continue. The daily factor is computed automatically and allocated to the subsequent  samples. Operating instructions DuMaster D-480 ©BÜCHI Labortechnik AG...

  • Page 144: Stopping Continuous Analysis

    It is therefore only necessary to move the stop marker in special cases. Nevertheless, if for any reason you have to move the stop marker proceed as follows: Open the "Set stop marker" dialog by selecting Edit > Stop tag.  Operating instructions DuMaster D-480 ©BÜCHI Labortechnik AG...
  • Page 145 Use the arrow buttons to set the sample number at which to set a stop marker.  Click OK. This closes the dialog and moves the stop marker to the desired position.  Operating instructions DuMaster D-480 ©BÜCHI Labortechnik AG...

  • Page 146: Preparing Measuring Data For Evaluation

    Setting the size of the graph ......................154 Configure report...........................155 Display print preview ........................155 Data backup and printing ......................156 Overview of export and import file formats ..................157 Exporting analysis data to MS Excel and viewing................157 Exporting LIMS data ........................158 Operating instructions DuMaster D-480 ©BÜCHI Labortechnik AG...

  • Page 147: Configuring The Sample View

    Enter the desired number of decimal places in the "Decimal places" field. Note: This function is  not available for all columns. Click OK in the "Column properties" dialog.  Click OK in the "Configure view" dialog. This closes the dialog and saves the settings.  Operating instructions DuMaster D-480 ©BÜCHI Labortechnik AG...

  • Page 148: Saving The Sample View

    You can generate statistical data fully automated. In this case, the software combines all samples  of the same name into groups. The user can only exclude specific samples from the calculation. Statistical data are then automatically generated for these groups. Operating instructions DuMaster D-480 ©BÜCHI Labortechnik AG...

  • Page 149: Formulae For Generating Statistical Data

    The following statistical data can be generated fron sample groups: Mean value of the sample group  Absolute standard deviation of the sample group  Relative standard deviation of the sample group  Delta of the sample group  Operating instructions DuMaster D-480 ©BÜCHI Labortechnik AG...

  • Page 150: Manual Peak Integration

    In these cases the "manual reintegration" is recommended. Peak types In these instructions you will find different peak types. Their characteristics are listed in the follwing. Operating instructions DuMaster D-480 ©BÜCHI Labortechnik AG...
  • Page 151 2 is designated as "superimposed". The following picture shows such a run. Melted peaks These are two consecutive peaks where the second peak already starts although the first is not yet finished. The graphic appears as follows: Operating instructions DuMaster D-480 ©BÜCHI Labortechnik AG...
  • Page 152  the peak begins and click the left mouse key. The peak start tag is displayed as a vertical blue line. Operating instructions DuMaster D-480 ©BÜCHI Labortechnik AG...
  • Page 153 Click Assign, if the integration result meets your requirements. The dialog "Area assignment"  opens. Select the manually integrated peak area and the element which shall be assigned. Leave the dialog by clicking OK. Operating instructions DuMaster D-480 ©BÜCHI Labortechnik AG...

  • Page 154: Configuring The Graph View

    Use the arrow button to open a listbox which lists the possible zoom factors.  Select the the requested zoom factor from the list.  Click OK. This closes the dialog and displays the graph according to your settings.  Operating instructions DuMaster D-480 ©BÜCHI Labortechnik AG...

  • Page 155: Configure Report

    OK. The "Print" dialog is displayed..is not OK and you want to change it: Click Close. Open the "Configure Report" dialog by  selecting File > Report configuration. See Configure report (on page 155). Operating instructions DuMaster D-480 ©BÜCHI Labortechnik AG...

  • Page 156: Data Backup And Printing

    ... has not yet a name: The "Save document" dialog appears.  Enter the desired document name in the header of the "Save document" dialog.  Click OK. The measuring data are saved.  Operating instructions DuMaster D-480 ©BÜCHI Labortechnik AG...

  • Page 157: Overview Of Export And Import File Formats

    Select the directory containing the desired analysis file in the "Search in" field.  Select the desired analysis file in the list below and click Open.  The data are displayed on different tabs in MS Excel.  Operating instructions DuMaster D-480 ©BÜCHI Labortechnik AG...

  • Page 158: Exporting Lims Data

    Open the "Export to LIMS" dialog by selecting File > Export/Import > Export to LIMS.  Select the desired option.  Click OK in the "Export to LIMS" dialog. The export process is performed.  Operating instructions DuMaster D-480 ©BÜCHI Labortechnik AG...

  • Page 159: Working With Documents

    In this section Creating new documents ......................160 Editing documents ........................160 Deleting documents ........................161 Finding documents ........................161 Copying documents via the clipboard ..................162 Importing documents ........................163 Signing documents ........................163 Checking documents for authenticity ...................164 Operating instructions DuMaster D-480 ©BÜCHI Labortechnik AG...

  • Page 160: Creating New Documents

    Select the line above which to insert the empty line by clicking the number next to the line.  Insert the line by selecting Edit > Insert Line. This inserts the line and all of the following  samples move down one line. Operating instructions DuMaster D-480 ©BÜCHI Labortechnik AG...

  • Page 161: Deleting Documents

    If the coefficients of the selected document..match the current coefficients: The document is displayed immediately. Herewith, the  searching is finished..do not match the current coefficients: A message appears. Go to the next step.  Operating instructions DuMaster D-480 ©BÜCHI Labortechnik AG...

  • Page 162: Copying Documents Via The Clipboard

     Inserting data You can insert data from the clipboard by selecting Edit > Paste: to insert them into a new document in the database or  into an MS Excel document.  Operating instructions DuMaster D-480 ©BÜCHI Labortechnik AG...

  • Page 163: Importing Documents

    Click Sign. The program checks whether you are authorized to sign the document. The result is  displayed in a message window:: "GOOD_PASSPHRASE" indicates that you are authorized to create the signature. The signature has been created. Operating instructions DuMaster D-480 ©BÜCHI Labortechnik AG...

  • Page 164: Checking Documents For Authenticity

    Click Verify. The program begins to check. The result is displayed in a message window and  indicates whether the signature is authentic or not. "Good signature from..." indicates that the signature is authentic. Operating instructions DuMaster D-480 ©BÜCHI Labortechnik AG...

  • Page 165: Chapter 8 Maintaining The Instrument

    Removing, cleaning and installing the quartz glass bridge ............213 Removing, cleaning and installing the carousel ................217 Emptying and filling reaction tubes ....................220 Removing/installing and conditioning the reaction tubes .............225 Filling, removing and installing the absorption and drying tubes ..........232 Operating instructions DuMaster D-480 ©BÜCHI Labortechnik AG...

  • Page 166: Important Information About Maintenance

    Maintenance work to be performed by the customer ..............167 Viewing the status of maintenance intervals ................168 Defining maintenance intervals in the software ................168 Installing used tubes ........................169 Preparing and following up maintenance work ................169 Conditioning newly installed tubes....................170 Operating instructions DuMaster D-480 ©BÜCHI Labortechnik AG...

  • Page 167: Maintenance Work To Be Performed By The Customer

    Before every series of analyses. Gases and chemicals to be intake pressure and sufficient provided. volume Recommendation Taking out a service contract for full annual maintenance saves time and money. Contact your service office for details. Operating instructions DuMaster D-480 ©BÜCHI Labortechnik AG...

  • Page 168: Viewing The Status Of Maintenance Intervals

    If the maximum number of measurements is reached, a message is displayed in the status view  in the "Maintenance" field reminding the user of the maintenance. See Fig. "Status view message". Operating instructions DuMaster D-480 ©BÜCHI Labortechnik AG...

  • Page 169: Installing Used Tubes

    ... go to Ball valve maintenance.  ... got to Cleaning the Ni flap. Cleaning the Ni flap  Safety instruction Strictly observe the safety instruction "Gas pressure" under Warning notes during operation (on page 24). Operating instructions DuMaster D-480 ©BÜCHI Labortechnik AG...

  • Page 170: Conditioning Newly Installed Tubes

    Large drying tube  Small drying tube  Baking out tubes to remove moisture and contaminations from the tube fillings. The following are  baked out: Combustion tube  Post combustion tube  Reductor  Operating instructions DuMaster D-480 ©BÜCHI Labortechnik AG...
  • Page 171 ... the ground joint must not be clipped onto the end of the post combustion tube.  Safety instruction Strictly observe the safety instruction "Baking out combustion and reduction tube" under Warning notes during operation (on page 24). Proceed as follows: Operating instructions DuMaster D-480 ©BÜCHI Labortechnik AG...
  • Page 172 ... distinctly different flow and pressure values to those displayed prior to maintenance work  are displayed: Perform a leak test. See Performing a leak test. The instrument is only ready to measure when the leak test is successful. Operating instructions DuMaster D-480 ©BÜCHI Labortechnik AG...

  • Page 173: Performing The Calibration

    Viewing list of defined factor, monitor and standard samples ............174 Defining standard substances .....................174 Viewing calibration coefficients ....................175 Optimizing instrument condition for calibration ................175 Performing the calibration ......................175 Assessing the calibration curves ....................179 Operating instructions DuMaster D-480 ©BÜCHI Labortechnik AG...

  • Page 174: Viewing List Of Defined Factor, Monitor And Standard Samples

    Click Create. Your new standard sample will now be included in the list in the left area of the  dialog. You have now defined the standard substance.  Click Close to close the dialog.  Operating instructions DuMaster D-480 ©BÜCHI Labortechnik AG...

  • Page 175: Viewing Calibration Coefficients

    Personnel authorized by the customer. Successful calibration is only possible if the user is familiar with the operating instructions and the analyzer. Note Perform calibration carefully as perfect calibration is a condition for correct measuring results. Calibration must comprise the complete working range. Operating instructions DuMaster D-480 ©BÜCHI Labortechnik AG...
  • Page 176 "Blnk" for blank samples, Daily factor or calibration samples must have the name defined in Options > Settings > Standards. Select an appropriate method for run-in and calibration samples according to the following list:  Operating instructions DuMaster D-480 ©BÜCHI Labortechnik AG...
  • Page 177  determination is activated a message window opens showing the corresponding information. Click Yes to continue. The "Configure calibration" dialog appears.  Define the settings that you ascertained in the preceding phase.  Operating instructions DuMaster D-480 ©BÜCHI Labortechnik AG...
  • Page 178 ... the possible working range defined in "Min." and "Max.".  Decide:  If..you accept the calibration coefficients: Click OK. The calibration coefficients are applied.  ... you do not accept the calibration coefficients: Click Cancel. Calibration is aborted.  Operating instructions DuMaster D-480 ©BÜCHI Labortechnik AG...

  • Page 179: Assessing The Calibration Curves

    "r". This allows you, for example, to check whether it makes sense to delete certain samples. Proc-SD Process standard deviation: a measure of the degree of distribution of sample values around the calibration curve. Operating instructions DuMaster D-480 ©BÜCHI Labortechnik AG...
  • Page 180 If you do not approximately achieve the listed values you can assume that: either you have selected the wrong calibration curve calculation mode,  or the calibration measurement has failed (weighing error, etc.).  Operating instructions DuMaster D-480 ©BÜCHI Labortechnik AG...
  • Page 181 8 - Maintaining the instrument Operating instructions DuMaster D-480 ©BÜCHI Labortechnik AG...

  • Page 182: Calibration Tables

    Of course, you can also use different substances but then you must develop the calibration rule yourself. In this section Calibration table for nitrogen calibration ..................183 Operating instructions DuMaster D-480 ©BÜCHI Labortechnik AG...

  • Page 183: Calibration Table For Nitrogen Calibration

    15, 20, 25, 30, 50, 75, 100, 125, 150, 175, 200, 250, 300 mg Calibration Aspartic acid / Aspartic acid CalibrationHigh 650 mg ≅ samples 350, 450, 550, 68.38 mg N 650 mg Operating instructions DuMaster D-480 ©BÜCHI Labortechnik AG...

  • Page 184: Replacing The Ash Crucible

    Personnel authorized by BÜCHI Labortechnik AG and having undergone training. Purpose This section enables you to replace the ash crucible. In this section Purpose and frequency of crucible replacement .................185 Removing the ash crucible ......................185 Installing the ash crucible ......................188 Operating instructions DuMaster D-480 ©BÜCHI Labortechnik AG...

  • Page 185: Purpose And Frequency Of Crucible Replacement

    Strictly observe the safety instruction "Gas pressure" under Warning notes during operation (on page 24). To prepare the instrument for maintenance work follow the instructions in "Preparing the instrument, Gas pressure" in Preparing and following up maintenance work. Operating instructions DuMaster D-480 ©BÜCHI Labortechnik AG...
  • Page 186 Legend: 1 Post combustion tube plug 2 Post combustion tube 3 Combustion tube connection 4 Combustion tube 5 Plug of Reductor 6 Reductor Phase 2: Removing the ash crucible (continued) Proceed as follows: Operating instructions DuMaster D-480 ©BÜCHI Labortechnik AG...
  • Page 187 Place the combustion tube connection (3) on the tube rack.  Insert the tube extractor into the combustion tube (4). After clamping the crucible tongs in the ash  crucible, pull the ash crucible out. Operating instructions DuMaster D-480 ©BÜCHI Labortechnik AG...

  • Page 188: Installing The Ash Crucible

    The following picture shows a top view of the furnace pulled out: Legend: 1 Post combustion tube plug 2 Post combustion tube 3 Combustion tube connection 4 Combustion tube 5 Plug of Reductor 6 Reductor Phase 1: Installing the ash crucible Proceed as follows: Operating instructions DuMaster D-480 ©BÜCHI Labortechnik AG...
  • Page 189 If you have performed maintenance work that has a defined maintenance interval, you must manually reset the "Status" field to zero on the "Maintenance intervals" dialog (accessible via Options > Maintenance > Intervals. See Defining maintenance intervals in the software. Operating instructions DuMaster D-480 ©BÜCHI Labortechnik AG...

  • Page 190: Refill The Regainer

    Personnel authorized by BÜCHI Labortechnik AG and having undergone training. Purpose This section enables you to refill the Regainer. In this section Purpose and frequency of refilling of the Regainer ..............191 Refill the Regainer ........................191 Operating instructions DuMaster D-480 ©BÜCHI Labortechnik AG...

  • Page 191: Purpose And Frequency Of Refilling Of The Regainer

    Strictly observe the safety instruction "Gas pressure" under Warning notes during operation (on page 24). To prepare the instrument for maintenance work follow the instructions in "Preparing the instrument, Gas pressure" in Preparing and following up maintenance work. Operating instructions DuMaster D-480 ©BÜCHI Labortechnik AG...
  • Page 192 Pull the combustion tube connection (1) out of the combustion tube (2) with careful jiggling  motions. Place the post combustion tube plug (1) on the tube rack.  Operating instructions DuMaster D-480 ©BÜCHI Labortechnik AG...
  • Page 193 If you have performed maintenance work that has a defined maintenance interval, you must manually reset the "Status" field to zero on the "Maintenance intervals" dialog (accessible via Options > Maintenance > Intervals. See Defining maintenance intervals in the software. Operating instructions DuMaster D-480 ©BÜCHI Labortechnik AG...

  • Page 194: Replacing Sealing Elements

    Replacing sealing elements prevents leaks. As a result of chemical corrosion, mechanical and thermal stress, sealing elements in various components of the instrument can become leaky over time. In this section When to replace sealing elements....................195 Removing sealing elements from grooves ...................196 Operating instructions DuMaster D-480 ©BÜCHI Labortechnik AG...

  • Page 195: When To Replace Sealing Elements

    Quad ring ... you cannot feel any elastic resistance when pressing on the ball. Drying tube (large, right) O-rings ... the o-rings no longer protrude round out of the grooves of the plug. Operating instructions DuMaster D-480 ©BÜCHI Labortechnik AG...

  • Page 196: Removing Sealing Elements From Grooves

    Grasp the sealing element (o-ring, quad ring, half shell, ferrule) between your thumb and  forefinger. Push the sealing element out to the side so that it forms a loop.  Grasp the loop with a pair of tweezers and pull the sealing element off.  Operating instructions DuMaster D-480 ©BÜCHI Labortechnik AG...

  • Page 197: Ball Valve Maintenance

    Personnel authorized by BÜCHI Labortechnik AG and having undergone training. Purpose This section enables you to maintain the ball valve. In this section Removing and dismantling the ball valve ..................198 Cleaning, assembling and installing the ball valve..............202 Operating instructions DuMaster D-480 ©BÜCHI Labortechnik AG...

  • Page 198: Removing And Dismantling The Ball Valve

    Quit the operating software. Execute the following command: File > Exit.  Switch off the analyzer and its peripherals.  Disconnect the power supply plug.  The instrument is now ready for removal of the ball valve.  Operating instructions DuMaster D-480 ©BÜCHI Labortechnik AG...
  • Page 199 Push the right side door open from inside (magnetic lock).  From the right, unscrew the ball valve (3) locking screws using an 8mm open jawed wrench.  Pull the ball valve out of the instrument to the front.  Operating instructions DuMaster D-480 ©BÜCHI Labortechnik AG...
  • Page 200 Never remove sealing elements with a knife but rather with tweezers. Proceed as follows: Unscrew and remove the wheel flange of the half shells using the hook wrench.  Unscrew the screws of the holder plate and remove the holder plate.  Operating instructions DuMaster D-480 ©BÜCHI Labortechnik AG...
  • Page 201 8 - Maintaining the instrument Remove the drive bearing.  Remove the ball and top half shell by means of the "knock-out".  Loosen and remove the bayonet catch.  Operating instructions DuMaster D-480 ©BÜCHI Labortechnik AG...

  • Page 202: Cleaning, Assembling And Installing The Ball Valve

    The instrument must have cooled down and be disconnected from the mains when you install the  ball valve again. See step 1 in Removing and dismantling the ball valve. Safety instruction Strictly observe the safety instruction "Hot instrument parts" under Warning notes during operation (on page 24). Operating instructions DuMaster D-480 ©BÜCHI Labortechnik AG...
  • Page 203 Insert the bottom half shell (2) and observe the recess for the drive bearing. Insert the ball (3)  and observe the position of the recess for the drive bearing. Insert the drive bearing (6). Observe the following  the fit of the o-ring (9)  Operating instructions DuMaster D-480 ©BÜCHI Labortechnik AG...
  • Page 204 (5).  Close the front door.  Switch on the furnace by means System > Furnace.  Wait for the tubes to reach the correct temperature.  Operating instructions DuMaster D-480 ©BÜCHI Labortechnik AG...
  • Page 205 If you have performed maintenance work that has a defined maintenance interval, you must manually reset the "Status" field to zero on the "Maintenance intervals" dialog (accessible via Options > Maintenance > Intervals. See Defining maintenance intervals in the software. Operating instructions DuMaster D-480 ©BÜCHI Labortechnik AG...

  • Page 206: Maintaining The Ni Flap And The O2 Lance

    In this section Purpose and frequency of maintaining the Ni flap and O2 lance ..........207 Removing and cleaning the Ni flap ....................207 Installing the Ni flap ........................209 Removing, cleaning and re-installing the O2 lance..............211 Operating instructions DuMaster D-480 ©BÜCHI Labortechnik AG...

  • Page 207: Purpose And Frequency Of Maintaining The Ni Flap And O2 Lance

    Strictly observe the safety instruction "Gas pressure" under Warning notes during operation (on page 24). To prepare the instrument for maintenance work follow the instructions in "Preparing the instrument: Cool down the furnace, gas pressure" in Preparing and following up maintenance work. Operating instructions DuMaster D-480 ©BÜCHI Labortechnik AG...
  • Page 208 Proceed as follows: Press the reductor plug (5), the combustion tube connection (3) and the post combustion tube  connector (1) down lightly and pull the furnace out of the instrument to the front. Operating instructions DuMaster D-480 ©BÜCHI Labortechnik AG...

  • Page 209: Installing The Ni Flap

    Installing the Ni flap Note The following section is a continuation of "Removing the Ni flap". All steps described in "Removing the Ni flap" must already have been performed. See: Removing and cleaning the Ni flap. Operating instructions DuMaster D-480 ©BÜCHI Labortechnik AG...
  • Page 210 Place the combustion tube connection (3) onto the combustion tube (4). The lance must extend  into the ash crucible approx. 5 - 10 mm. Place the ungreased seal on the combustion tube connection (3) at the top.  Operating instructions DuMaster D-480 ©BÜCHI Labortechnik AG...

  • Page 211: Removing, Cleaning And Re-Installing The O2 Lance

    Removing and cleaning the Ni flap are presumed for maintenance and removal of the O lance. Safety instruction Strictly observe the safety instruction "Hot instrument parts" under Warning notes during operation (on page 24). Operating instructions DuMaster D-480 ©BÜCHI Labortechnik AG...
  • Page 212 3 mm bore (1) located across from the flap with hinge up to the stop. Avoid breakage of the lance by slight rotary motions while inserting. After insertion the sealing hose must be set in completely into the bore and must not stick out.  Operating instructions DuMaster D-480 ©BÜCHI Labortechnik AG...

  • Page 213: Removing, Cleaning And Installing The Quartz Glass Bridge

    Personnel authorized by BÜCHI Labortechnik AG and having undergone training. Purpose This section enables you to remove, clean and install the quartz glass bridge. In this section Removing the quartz glass bridge ....................214 Cleaning and installing the quartz glass bridge ................214 Operating instructions DuMaster D-480 ©BÜCHI Labortechnik AG...

  • Page 214: Removing The Quartz Glass Bridge

     Protect the hot quartz glass bridge from unauthorized access.  Cleaning and installing the quartz glass bridge What contaminations are possible? Black residue (tar) indicate poor combustion and incorrect O dosing.  Operating instructions DuMaster D-480 ©BÜCHI Labortechnik AG...
  • Page 215 The instrument must be in "Replace part" status. See Replacing part (on page 308).  The front door has to be opened.  Proceed as follows: Connect the combustion and reduction tube with the quartz glass bridge by means of two  ground-in clamps. Operating instructions DuMaster D-480 ©BÜCHI Labortechnik AG...
  • Page 216 If you have performed maintenance work that has a defined maintenance interval, you must manually reset the "Status" field to zero on the "Maintenance intervals" dialog (accessible via Options > Maintenance > Intervals. See Defining maintenance intervals in the software. Operating instructions DuMaster D-480 ©BÜCHI Labortechnik AG...

  • Page 217: Removing, Cleaning And Installing The Carousel

    Target group Personnel authorized by BÜCHI Labortechnik AG and having undergone training. Purpose This section enables you to remove, clean and install the carousel. In this section Removing, cleaning and installing the carousel ................218 Operating instructions DuMaster D-480 ©BÜCHI Labortechnik AG...

  • Page 218: Removing, Cleaning And Installing The Carousel

    Dismantle the carousel into its two component parts:  the metal ring and  the plastic top section with the ring holder magnets.  Remove the four hexagon head screws (1) with a wrench. Operating instructions DuMaster D-480 ©BÜCHI Labortechnik AG...
  • Page 219 Insert the carousel into the holder and observe that the ejector openings of the ring must be  above the ball valve. Subsequently, perform a reference run.  Operating instructions DuMaster D-480 ©BÜCHI Labortechnik AG...

  • Page 220: Emptying And Filling Reaction Tubes

    Personnel authorized by BÜCHI Labortechnik AG and having undergone training. Purpose This section enables you to empty and refill reaction tubes. In this section Emptying reaction tubes ......................221 Filling the combustion tube ......................221 Filling the post combustion tube ....................223 Reductor replacing ........................224 Operating instructions DuMaster D-480 ©BÜCHI Labortechnik AG...

  • Page 221: Emptying Reaction Tubes

    Dispose of the Reductor Proceed as follows: Dispose of the Reductor to the relevant disposal categories.  Filling the combustion tube Note Note the following rules: Observe the filling heights indicated as exactly as possible.  Operating instructions DuMaster D-480 ©BÜCHI Labortechnik AG...
  • Page 222 Fill in the corundum balls.  Insert the ash crucible.  Apply the cleaned Ni flap flange with O lance.  Operating instructions DuMaster D-480 ©BÜCHI Labortechnik AG...

  • Page 223: Filling The Post Combustion Tube

    Fill in the corundum balls.  Pour the copper oxide (CuO) and Pt catalyst into two separate beakers - simultaneously  pour from the two beakers, so that a good mixture is developed. Operating instructions DuMaster D-480 ©BÜCHI Labortechnik AG...

  • Page 224: Reductor Replacing

    The top and bottom plug of the Reductor are no consumables and therefore have to be reused.  Use both plugs for the new Reductor. The Reductor is a consumable and should be replaced.  Operating instructions DuMaster D-480 ©BÜCHI Labortechnik AG...

  • Page 225: Removing/Installing And Conditioning The Reaction Tubes

    8 - Maintaining the instrument Removing/installing and conditioning the reaction tubes In this section Removing the reaction tubes from the furnace ................226 Installing reaction tubes in the furnace and conditioning .............228 Operating instructions DuMaster D-480 ©BÜCHI Labortechnik AG...

  • Page 226: Removing The Reaction Tubes From The Furnace

    Unscrew the combustion tube connector. To do so, turn the bayonet catch handle (2) to the right.  Remove the ground-in clamp (5) on the reductor (3).  Remove the ground-in clamp (5) on the plug of the post combustion tube (7).  Operating instructions DuMaster D-480 ©BÜCHI Labortechnik AG...
  • Page 227 Caution: Tilting and jamming the combustion tube connection can damage the combustion tube.  Pull the combustion tube connection (3) out of the combustion tube with careful jiggling motions. Place the combustion tube connection (3) on the tube rack.  Operating instructions DuMaster D-480 ©BÜCHI Labortechnik AG...

  • Page 228: Installing Reaction Tubes In The Furnace And Conditioning

    The instrument must be in "Replace part" status. See instructions "Preparing the instrument: Gas  pressure" in Preparing and following up maintenance work. The front door must be open and the furnace must be moved out.  Operating instructions DuMaster D-480 ©BÜCHI Labortechnik AG...
  • Page 229 Check that the reaction tube comes to rest on the bottom of the holder. The holders are  height-adjustable so as to allow for reaction tube length tolerances. Install the quartz glass bridge between the combustion tube outlet and the post combustion tube  inlet. Operating instructions DuMaster D-480 ©BÜCHI Labortechnik AG...
  • Page 230 Close the "Replace part" dialog in the operating software. To do so, click Finish in the "Replace  part" dialog. By doing so, the gas will be automatically turned on. and the atmospheric nitrogen is removed by flushing with CO for five minutes. Operating instructions DuMaster D-480 ©BÜCHI Labortechnik AG...
  • Page 231 If you have performed maintenance work that has a defined maintenance interval, you must manually reset the "Status" field to zero on the "Maintenance intervals" dialog (accessible via Options > Maintenance > Intervals. See Defining maintenance intervals in the software. Operating instructions DuMaster D-480 ©BÜCHI Labortechnik AG...

  • Page 232: Filling, Removing And Installing The Absorption And Drying Tubes

    Personnel authorized by BÜCHI Labortechnik AG and having undergone training. Purpose This section enables you to fill, remove and install the drying tubes. In this section Filling the drying tubes .........................233 Removing and installing the drying tubes ..................235 Operating instructions DuMaster D-480 ©BÜCHI Labortechnik AG...

  • Page 233: Filling The Drying Tubes

    In doing so, make sure that the carrier gas flow will not be impaired. Drying tube filling (small) The following picture shows the fillings of the drying tube: Legend: 1 Empty space 2 Cotton (10 mm) 3 Sicapent® (116 mm) Operating instructions DuMaster D-480 ©BÜCHI Labortechnik AG...
  • Page 234 Plug approx. 10 mm of cotton over the Sicapent®.  Replace the screw-on caps and tighten them on the glass tube by hand.  Push the glass tube between the clamps and close the tubes.  Operating instructions DuMaster D-480 ©BÜCHI Labortechnik AG...

  • Page 235: Removing And Installing The Drying Tubes

    Strictly observe the safety instruction "Installing/removing the drying tube" under Warning notes during operation (on page 24). Phase 1, Preparing the instrument, gas pressure Safety instruction Strictly observe the safety instruction "Gas pressure" under Warning notes during operation (on page 24). Operating instructions DuMaster D-480 ©BÜCHI Labortechnik AG...
  • Page 236 If you have performed maintenance work that has a defined maintenance interval, you must manually reset the "Status" field to zero on the "Maintenance intervals" dialog (accessible via Options > Maintenance > Intervals. See Defining maintenance intervals in the software. Operating instructions DuMaster D-480 ©BÜCHI Labortechnik AG...

  • Page 237: Chapter 9 Repairing The Instrument

    What to do after a computer crash ....................245 Reacting to a power failure ......................245 Stopping continuous analysis ......................248 Re-weighing after sample loss ....................248 Changing the position of the carousel ..................249 Export analysis data for support ....................249 Operating instructions DuMaster D-480 ©BÜCHI Labortechnik AG...

  • Page 238: Interpreting Pc Error Messages

    Warning. Requires no activity for now. If occuring repeatedly with succeeding  analyses, look for the cause and find a remedy. green: Hint. Informs about an unusual behaviour, however, under normal circumstances no  activities are necessary. Operating instructions DuMaster D-480 ©BÜCHI Labortechnik AG...

  • Page 239: Performing A System Test

    Perform the system test in consultation with the service department. The service department will give you the necessary instructions to perform the system test. You can contact the service under: www.buchi.com Further information Further information can be found in: System test.  Operating instructions DuMaster D-480 ©BÜCHI Labortechnik AG...

  • Page 240: Performing A Leak Test

     The leak is then probably located at the blue indicated gas ways. Further information Leak test.  Leak test: Test phases (on page 311).  Leak test procedure (on page 241).  Operating instructions DuMaster D-480 ©BÜCHI Labortechnik AG...

  • Page 241: Leak Test Procedure

    The following table lists the different fuses. Fuse holder label Responsible for... Fuse specifications Heater 1 25 A Heater 2 10 A Heater 3 10 A F5 + F6 Power supply 10 A Operating instructions DuMaster D-480 ©BÜCHI Labortechnik AG...
  • Page 242 Phase 2: Remove and check fuse Proceed as follows: If a part of the instrument is no longer working, consult the above table to find out which fuse is  resposible for the component. Operating instructions DuMaster D-480 ©BÜCHI Labortechnik AG...
  • Page 243 The following picture shows the protective earth conductor connector: Then remove the rear wall.  Loosen the knurled screw (1) of the semiconductor relay holding plate (2) and fold out the  semiconductor relay holding plate. Operating instructions DuMaster D-480 ©BÜCHI Labortechnik AG...
  • Page 244 Proceed as follows: Make sure that the fuse specifications match the label on the fuse holder.  Insert the fuse into the appropriate fuse holder and tighten the semiconductor relay holding plate  again. Operating instructions DuMaster D-480 ©BÜCHI Labortechnik AG...

  • Page 245: What To Do After A Computer Crash

    Reacting to a power failure Open document An open document is not lost in the event of a power failure. The temporary document file is automatically loaded when the operating software is restarted. Operating instructions DuMaster D-480 ©BÜCHI Labortechnik AG...
  • Page 246 There may still be some residue of the last sample in the combustion section. Perform blank  value determinations to remove the residues. See Determining blank values (on page 141). Correct the number of the current sample via Edit > Current sample. See Adjusting the current  sample. Operating instructions DuMaster D-480 ©BÜCHI Labortechnik AG...
  • Page 247 Perform a leak test to check the air-tightness of the instrument. See Performing a leak test.  If any leaks are detected, replace all sealing elements in the furnace area. See Replacing sealing  elements. Operating instructions DuMaster D-480 ©BÜCHI Labortechnik AG...

  • Page 248: Stopping Continuous Analysis

    Use the arrows to set the number following the number of the last sample.  Click OK. This closes the dialog and the cursor moves to the "Weight" column of the selected  sample number. Operating instructions DuMaster D-480 ©BÜCHI Labortechnik AG...

  • Page 249: Changing The Position Of The Carousel

    Open the "Export document" dialog in the operating software by selecting File > Export/Import >  Export. Select the desired document file and click OK. This displays the "Save file as" dialog.  Select the directory to export the document to from the "Save" dropdown listbox.  Operating instructions DuMaster D-480 ©BÜCHI Labortechnik AG...
  • Page 250 9 - Repairing the instrument Select the "SQLite Files (*.sqlite) file type from the "File type" dropdown listbox and click Save.  The document is exported and saved under the corresponding name.  Operating instructions DuMaster D-480 ©BÜCHI Labortechnik AG...

  • Page 251: Chapter 10 Menu And Dialog Descriptions

    Dialog descriptions key ........................252 File menu .............................253 Edit menu ............................272 View menu ...........................278 System menu ..........................287 Math menu ..........................292 Statistics menu ..........................298 Calibration menu .........................301 Options menu ..........................306 Windows menu ..........................332 Help menu ...........................335 Operating instructions DuMaster D-480 ©BÜCHI Labortechnik AG...

  • Page 252: Dialog Descriptions Key

    The following list provides pictures of element types that feature in the dialog descriptions: Element type Example picture Label Dropdown listbox Checkbox Listbox Radiobutton Button Sliding controller Listbox column Textbox Textbox/label Textbox with checkbox Textbox with buttons Operating instructions DuMaster D-480 ©BÜCHI Labortechnik AG...

  • Page 253: File Menu

    Configure backup (Dialog) ......................267 Clean database (Dialog) ......................269 Restore database (Dialog) ......................269 Log in as (Dialog) ........................270 File > Logoff (Command) ......................271 File > Exit (Command) .........................271 File > Export/Import > Create Excel sheet (Command) ...............271 Operating instructions DuMaster D-480 ©BÜCHI Labortechnik AG...

  • Page 254: File > New (Command)

    Fields listing all documents in the database if the filter Time / Author / function is not enabled. Mode / Previous versions / Signatures Selection Checkbox If activated the filter elements "Mode", "From", "To", "Name" and "Author" will appear. Operating instructions DuMaster D-480 ©BÜCHI Labortechnik AG...
  • Page 255 Previous versions Listbox column A figure in parentheses indicates how many previous versions of the document exist. Operating instructions DuMaster D-480 ©BÜCHI Labortechnik AG...

  • Page 256: Select Version (Dialog)

    Loads the selected version into sample memory. If you load a previous version, you cannot edit it but only view or print it out. Previous versions are read-only. Button Aborts the process. Cancel Operating instructions DuMaster D-480 ©BÜCHI Labortechnik AG...

  • Page 257: Save File As (Dialog)

    Further information includes instructions in which the dialog is used and knowledge articles concerning the dialog: Exporting analysis data to MS Excel and viewing (on page 157).  Export analysis data for support.  Overview of export and import file formats.  Operating instructions DuMaster D-480 ©BÜCHI Labortechnik AG...

  • Page 258: File > Delete (Command)

    Creating new sections (on page 77).  Defining the analyzer / PC interface (on page 84).  Defining the autoexport directory (on page 93).  21 CFR Part 11 functionality (on page 71).  Operating instructions DuMaster D-480 ©BÜCHI Labortechnik AG...

  • Page 259: Sign (Dialog)

    21 CFR Part 11 functionality (on page 71).  Verify digital signature (Dialog) Function In this dialog you can verify the authenticity of a document's digital signatures. This dialog is only relevant if 21 CFR Part 11 functionality is enabled. Operating instructions DuMaster D-480 ©BÜCHI Labortechnik AG...

  • Page 260: Export To Lims (Dialog)

    Radiobutton Exports selected samples in sample memory only. selected samples You can only select this radio button if at least one sample is selected. Button Starts the export according to the settings. Operating instructions DuMaster D-480 ©BÜCHI Labortechnik AG...

  • Page 261: Export Peak Graphics (Dialog)

    Aborts the process and discards settings not yet saved. Cancel Configure report (Dialog) Function In this dialog you can define up to three headers to appear on every page of the log printout and the type of printout. Operating instructions DuMaster D-480 ©BÜCHI Labortechnik AG...
  • Page 262 Further information includes instructions in which the dialog is used and knowledge articles concerning the dialog: Data backup and printing (on page 156).  Configure report (on page 155).  Display print preview (on page 155).  Operating instructions DuMaster D-480 ©BÜCHI Labortechnik AG...

  • Page 263: Print (Dialog)

    Prints the selection only. In section "Copies": Label Element type Meaning Number of copies Textbox with buttons Field to input the number of copies to print. Sort Checkbox Prints multiple complete copies of a document successively. Operating instructions DuMaster D-480 ©BÜCHI Labortechnik AG...

  • Page 264: Print Preview (Dialog)

    Close Further information Further information includes instructions in which the dialog is used and knowledge articles concerning the dialog: Display print preview (on page 155).  Optimizing data evaluation (on page 99).  Operating instructions DuMaster D-480 ©BÜCHI Labortechnik AG...

  • Page 265: Printer Setup (Dialog)

    Saves new settings Button Discards settings not yet saved. Cancel Further information Further information includes instructions in which the dialog is used and knowledge articles concerning the dialog: Printer setup (on page 101).  Operating instructions DuMaster D-480 ©BÜCHI Labortechnik AG...

  • Page 266: Open (Dialog)

    Further information includes instructions in which the dialog is used and knowledge articles concerning the dialog: Importing documents (on page 163).  Administrative work on the database (on page 92).  Overview of export and import file formats.  Operating instructions DuMaster D-480 ©BÜCHI Labortechnik AG...

  • Page 267: Load Balance File (Dialog)

     when the backup starts.  Open Open the dialog by selecting File > Backup/Restore > Backup. Elements The following describes the elements of the dialog. Operating instructions DuMaster D-480 ©BÜCHI Labortechnik AG...
  • Page 268 Further information includes instructions in which the dialog is used and knowledge articles concerning the dialog: Backup der Datenbank starten (on page 94).  Administrative work on the database (on page 92).  Database backup.  Operating instructions DuMaster D-480 ©BÜCHI Labortechnik AG...

  • Page 269: Clean Database (Dialog)

     you can start a backup of the current database file before importing the old database file,  you can reimport an old database file.  Operating instructions DuMaster D-480 ©BÜCHI Labortechnik AG...

  • Page 270: Log In As (Dialog)

    Field to input the password. Domain Textbox Field to input the domain for company networks. Button Launches the operating software or applies the changed user data if the operating software is already running. Operating instructions DuMaster D-480 ©BÜCHI Labortechnik AG...

  • Page 271: File > Logoff (Command)

    Invocation via hot key: ALT + F4 File > Export/Import > Create Excel sheet (Command) What is the command used for? This command saves the content of the sample view to an Excel file. Operating instructions DuMaster D-480 ©BÜCHI Labortechnik AG...

  • Page 272: Edit Menu

    Edit > Insert line (Command) .......................274 Edit > Delete line (Command) .....................274 Swap samples (Dialog) ........................275 Edit > Modify (Command) ......................275 Set stop tag (Dialog) ........................276 Select current sample (Dialog) ....................276 Set current weighed sample (Dialog)...................277 Operating instructions DuMaster D-480 ©BÜCHI Labortechnik AG...

  • Page 273: Edit > Undo (Command)

    Cutting and copying data to the clipboard overwrites the data previously stored in the clipboard. Edit > Copy (Command) What is the command used for? This command copies selected cells and/or selected rows to the clipboard. Operating instructions DuMaster D-480 ©BÜCHI Labortechnik AG...

  • Page 274: Edit > Paste (Command)

    The inserted line is an "empty" line, i.e. every column is filled with its default value. Edit > Delete line (Command) What is the command used for? This command deletes a line at a certain position in sample memory. Operating instructions DuMaster D-480 ©BÜCHI Labortechnik AG...

  • Page 275: Swap Samples (Dialog)

    What is the command used for? This command allows you to edit a finished (analyzed) sample. Note The field you want to change must be selected. After executing this command you can edit the contents of the field. Operating instructions DuMaster D-480 ©BÜCHI Labortechnik AG...

  • Page 276: Set Stop Tag (Dialog)

    Otherwise, measurements will be incorrect. Open Open the dialog: via the menu command Edit > Current sample or  Operating instructions DuMaster D-480 ©BÜCHI Labortechnik AG...

  • Page 277: Set Current Weighed Sample (Dialog)

    Textbox with Field to input a sample number sample at: buttons You can also set the sample number in the textbox using the arrows. Button Saves the setting. Button Aborts the process. Cancel Operating instructions DuMaster D-480 ©BÜCHI Labortechnik AG...

  • Page 278: View Menu

    Configure graph view (Dialog) .....................282 View > Graphic > Auto align (Command) ..................283 Configure statistics view (Dialog)....................283 View > Statistic > Auto align (Command) ..................284 Select columns (Dialog) .......................284 Column properties (Dialog) ......................284 Weighing window (Dialog) ......................285 Operating instructions DuMaster D-480 ©BÜCHI Labortechnik AG...

  • Page 279: View > Toggle (Command)

    This dialog is used to configure the sample view. It is possible to show/hide every column and to change the display sequence. Open Open the dialog via View > Gridview > Configure. The sample view must be active in order to open the dialog. Operating instructions DuMaster D-480 ©BÜCHI Labortechnik AG...

  • Page 280: Save Sample Pane (Dialog)

    Field to input a name under which to save the view. If you have selected a file in the listbox, the name of the file is displayed here and you can overwrite the file. Operating instructions DuMaster D-480 ©BÜCHI Labortechnik AG...

  • Page 281: Load Sample Pane (Dialog)

    Function In this dialog you can delete saved sample views. Open Open the dialog via View > Gridview > Delete configuration. The sample pane must be active in order to open the dialog. Operating instructions DuMaster D-480 ©BÜCHI Labortechnik AG...

  • Page 282: View > Gridview > Auto Align (Command)

    In section "X axis configuration": Label Element type Meaning Time axis Textbox In this field you can define the division of the time axis (X axis). Operating instructions DuMaster D-480 ©BÜCHI Labortechnik AG...

  • Page 283: View > Graphic > Auto Align (Command)

    Std. dev. relative Checkbox Only displays relative standard deviation of the individual groups if this box is checked. Delta Checkbox Only displays the delta value of the individual groups if this box is checked. Operating instructions DuMaster D-480 ©BÜCHI Labortechnik AG...

  • Page 284: View > Statistic > Auto Align (Command)

    Displays the corresponding column only if this box is checked. Remaining elements: Label Element type Meaning Button Saves new settings Button Discards settings not yet saved. Cancel Column properties (Dialog) Function In this dialog you specify the number of decimal places. Operating instructions DuMaster D-480 ©BÜCHI Labortechnik AG...

  • Page 285: Weighing Window (Dialog)

    Name Label Displays the name of the weighed-in sample. The name of the current weighed sample is displayed in a larger font. Operating instructions DuMaster D-480 ©BÜCHI Labortechnik AG...
  • Page 286 10 - Menu and dialog descriptions Operating instructions DuMaster D-480 ©BÜCHI Labortechnik AG...

  • Page 287: System Menu

    System > Stop (Command) ......................288 System > Auto zero (Command) ....................289 Furnace switch off/on (Dialog) .....................289 Initialize the instrument (Dialog) ....................289 System > Wake up (Command) ....................290 Feeding (Dialog) ..........................290 Adjust carousel position (Dialog) ....................290 Operating instructions DuMaster D-480 ©BÜCHI Labortechnik AG...

  • Page 288: System > Auto Run (Command)

    If one of these conditions is not met, the system does not start and a message is displayed. System > Stop (Command) What is the command used for? This command aborts a running analysis. The system goes into idle mode again, regardless of sleep settings. Operating instructions DuMaster D-480 ©BÜCHI Labortechnik AG...

  • Page 289: System > Auto Zero (Command)

    In this dialog the instrument will be initialized. It will be set all parameters to default values. Open Open the dialog via System > Initialise. Elements The following describes the elements of the dialog. Label Element type Meaning Button Confirm the action. Button Aborts the process. Operating instructions DuMaster D-480 ©BÜCHI Labortechnik AG...

  • Page 290: System > Wake Up (Command)

    This function is only available in the solids modes. Function After a power failure or if you repeat initial startup and remove the carousel, it is necessary to readjust the position of the carousel. Operating instructions DuMaster D-480 ©BÜCHI Labortechnik AG...
  • Page 291 Further information includes instructions in which the dialog is used and knowledge articles concerning the dialog: Performing measurement work (on page 134).  Reacting to a power failure (on page 245).  Performing calibration.  Operating instructions DuMaster D-480 ©BÜCHI Labortechnik AG...

  • Page 292: Math Menu

    Blank values (Dialog) ........................293 Math. > Factor (Command) ......................294 Define type of peak (Dialog) ......................294 Define peak start / end (Dialog) ....................294 Area assignment (Dialog) ......................295 Standard samples display (Dialog) ....................296 Math. > Recalculate (Command) ....................297 Operating instructions DuMaster D-480 ©BÜCHI Labortechnik AG...

  • Page 293: Math > Blank Values > Calculate (Command)

    Further information includes instructions in which the dialog is used and knowledge articles concerning the dialog: Determining blank values (on page 141)  Specifying the computation method for blank value and daily factor (on page 121)  Performing routine measuring work  Operating instructions DuMaster D-480 ©BÜCHI Labortechnik AG...

  • Page 294: Math. > Factor (Command)

    Manual peak integration (on page 150).  Define peak start / end (Dialog) Function The dialog serves for the definition of the peak start and end tags and the height of the baseline during the manual peak integration. Operating instructions DuMaster D-480 ©BÜCHI Labortechnik AG...

  • Page 295: Area Assignment (Dialog)

    Open Open the "Define peak start/end" dialog via Math. > Manual Peak Integration > Integrate. Then, after you have performed the manual integration, open the "Area assignment" dialog by clicking the Assign button. Operating instructions DuMaster D-480 ©BÜCHI Labortechnik AG...

  • Page 296: Standard Samples Display (Dialog)

    Show as factor/monitor Radiobutton The sample field displays the measured (calculated) sample (measured element concentrations of the standard samples in concentration) the corresponding columns. Button Saves new settings Button Discards settings not yet saved. Cancel Operating instructions DuMaster D-480 ©BÜCHI Labortechnik AG...

  • Page 297: Math. > Recalculate (Command)

    This makes sense, for example, if you have analyzed a calibration series and then a measuring series immediately afterwards (e.g. overnight). If you compute the coefficients the next day, you must recompute the appended measuring samples with the newly computed coefficients. Operating instructions DuMaster D-480 ©BÜCHI Labortechnik AG...

  • Page 298: Statistics Menu

    Statistics > Sort group (Command) .....................299 Statistics > Delete group (Command) ..................299 Statistics > Clear statistic (Command) ..................299 Statistics > Include/Exclude sample (Command) ................300 Statistics > Include/Exclude value (Command) ................300 Statistics > Create Excel sheet (Command) ................300 Operating instructions DuMaster D-480 ©BÜCHI Labortechnik AG...

  • Page 299: Statistics > Via Names (Command)

    This command deletes a selected statistical group in the statistics view. Note The command is only available if the statistics view is active. Statistics > Clear statistic (Command) What is the command used for? This command deletes the entire statistics memory. Operating instructions DuMaster D-480 ©BÜCHI Labortechnik AG...

  • Page 300: Statistics > Include/Exclude Sample (Command)

    If only two values are enabled in a statistical group, you cannot disable either of these values. Statistics > Create Excel sheet (Command) What is the command used for? This command saves the content of the statistic field to an Excel file. Operating instructions DuMaster D-480 ©BÜCHI Labortechnik AG...

  • Page 301: Calibration Menu

    Configure calibration (Dialog) ......................303 Specify lower and upper calibration range (Dialog) ..............304 Calibration > Next sample (Command) ..................305 Calibration > Previous sample (Command) .................305 Calibration > Next (Command) ....................305 Calibration > Previous (Command) .....................305 Operating instructions DuMaster D-480 ©BÜCHI Labortechnik AG...

  • Page 302: Calibration Coefficients (Dialog)

    Copies the coefficients from the clipboard to the currently active tab. (Paste) Button Undoes the copy action performed recently. (Undo) Remaining elements: Label Element type Meaning Button Applies calibration coefficients that have just been computed or input. Operating instructions DuMaster D-480 ©BÜCHI Labortechnik AG...

  • Page 303: Configure Calibration (Dialog)

    "Two calibration ranges" has been checked for at least for one element, then the "Specify lower and upper calibration range" dialog will open. Here, the split-up of both calibration ranges can be carried out. Button Aborts the process. Cancel Operating instructions DuMaster D-480 ©BÜCHI Labortechnik AG...

  • Page 304: Specify Lower And Upper Calibration Range (Dialog)

    Further information includes instructions in which the dialog is used and knowledge articles concerning the dialog: Performing calibration.  Background knowledge required for calibration (on page 51).  Right mouse button function (on page 67).  Calibration formulae (on page 54)  Operating instructions DuMaster D-480 ©BÜCHI Labortechnik AG...

  • Page 305: Calibration > Next Sample (Command)

    Calibration > Previous (Command) What is the command used for? This command displays the previous calibration curve in the calibration view or calls up the "Configure calibration" dialog. Short cuts Invocation via the toolbar: Operating instructions DuMaster D-480 ©BÜCHI Labortechnik AG...

  • Page 306: Options Menu

    LIMS settings (Dialog) .........................319 Method (Dialog) ...........................322 Monthly logbook (Dialog) ......................323 Select period (Dialog) ........................324 Device configuration (Dialog) ......................325 Error handling (Dialog) ........................328 Sleep / wake-up function (Dialog) ....................329 Configure key value (Dialog) .......................330 Operating instructions DuMaster D-480 ©BÜCHI Labortechnik AG...

  • Page 307: Maintenance Intervals (Dialog)

    Button Allows the definition of a new event. Button Removes the selected event from the list. Delete Button Saves the settings made. Save Button Closes the dialog. Close Operating instructions DuMaster D-480 ©BÜCHI Labortechnik AG...

  • Page 308: Replace Part (Dialog)

    Further information Further information includes instructions in which the dialog is used and knowledge articles concerning the dialog: Installing reaction tubes in the furnace and conditioning.  Preparing and following up maintenance work.  Operating instructions DuMaster D-480 ©BÜCHI Labortechnik AG...

  • Page 309: Adjust Carousel (Dialog)

    0 which has almost the same location. Button Adjusts the position of the carousel, if confirmed above that all samples have been removed from the carousel. Button Aborts the process. Cancel Operating instructions DuMaster D-480 ©BÜCHI Labortechnik AG...

  • Page 310: Leak Test (Dialog)

    Further information includes instructions in which the dialog is used and knowledge articles concerning the dialog: Performing a leak test.  Installing reaction tubes in the furnace and conditioning.  Preparing and following up maintenance work.  Start-up.  Operating instructions DuMaster D-480 ©BÜCHI Labortechnik AG...

  • Page 311: Leak Test: Test Phases (Dialog)

    In the right area: Label Element type Meaning 0 ... x Sec. Label This field displays the remaining time of the respective stage of the test. Pressure, current Label This field displays instrument pressure. Operating instructions DuMaster D-480 ©BÜCHI Labortechnik AG...

  • Page 312: System Test (Dialog)

    I Closes the Ni flap. Oxygen valve Buttons 0 removes the current from the valve. I applies current to the valve. Water drain Buttons 0 removes the current from the valve. I applies current to the valve. Operating instructions DuMaster D-480 ©BÜCHI Labortechnik AG...
  • Page 313 Opens the description of the dialog in the help. Help Further information Further information includes instructions in which the dialog is used and knowledge articles concerning the dialog: Performing a system test.  Operating instructions DuMaster D-480 ©BÜCHI Labortechnik AG...

  • Page 314: Error Buffer (Dialog)

    Open Open the dialog via: Options > Diagnostics > Error display or  by double-clicking the appropriate event line in the "Error buffer" dialog. See Error buffer (on  page 314). Operating instructions DuMaster D-480 ©BÜCHI Labortechnik AG...

  • Page 315: Options > Diagnostics > Baseline Recording (Command)

    "Name999"), it is not incremented and the same name is suggested for the next sample. If the figure is not at the end of the sample name (e.g.  "Name001xyz"), it is not incremented. Operating instructions DuMaster D-480 ©BÜCHI Labortechnik AG...

  • Page 316: Standard Samples (Dialog)

    (or {Element} conc. corresponding element in the respective sample. [ppm]) {Element} tolerance Textbox/label Field to input the tolerance limit of the corresponding element. The tolerance limit is required if standard tolerance monitoring is enabled. Operating instructions DuMaster D-480 ©BÜCHI Labortechnik AG...

  • Page 317: Keywords (Dialog)

    Discards keywords not yet saved. Cancel Further information Further information includes instructions in which the dialog is used and knowledge articles concerning the dialog: Defining keywords for blank and conditioning samples (on page 119).  Operating instructions DuMaster D-480 ©BÜCHI Labortechnik AG...

  • Page 318: Acoustic Signals (Dialog)

    Total calculation method. This means that the calculation is performed for all of the standard or  blank value samples in a document. An average factor is computed. Open Open the dialog via Options > Settings > Calculation. Elements The following describes the elements of the dialog. Operating instructions DuMaster D-480 ©BÜCHI Labortechnik AG...

  • Page 319: Lims Settings (Dialog)

    "Identifier" tab so that the LIMS data can be allocated to the correct instrument. You can also define user names. Note Note that the LIMS port name must not be identical to the port name between the PC and the analyzer. This could lead to a system crash. Operating instructions DuMaster D-480 ©BÜCHI Labortechnik AG...
  • Page 320 "Data transfer" section. The settings here must match those of the LIMS interface. In section "Network": Label Element type Meaning Path name Textbox This field displays the path to store the data. Operating instructions DuMaster D-480 ©BÜCHI Labortechnik AG...
  • Page 321 Field to input the name of the balance operator. The name precedes the actual data and can be interpreted by the LIMS. Valid for all tabs: Remaining elements: Label Element type Meaning Button Saves new settings Operating instructions DuMaster D-480 ©BÜCHI Labortechnik AG...

  • Page 322: Method (Dialog)

    Autozero delay Textbox Field to input a time. Defines the time to wait after introduction until the system performs autozero alignment. Operating instructions DuMaster D-480 ©BÜCHI Labortechnik AG...

  • Page 323: Monthly Logbook (Dialog)

    User's justification if the action needed to be justified.  Note: The period displayed in the logbook covers a maximum of one month, usually the current month. However, it is possible to display actions preceding this period. Operating instructions DuMaster D-480 ©BÜCHI Labortechnik AG...

  • Page 324: Select Period (Dialog)

    In this dialog you select the period for which to display the logbook. Open Open the "Logbook for month..." dialog via Options > Logbook. Open the "Select period" dialog by selecting File > Load. Operating instructions DuMaster D-480 ©BÜCHI Labortechnik AG...

  • Page 325: Device Configuration (Dialog)

    If 21 CFR Part 11 functionality is enabled, every change to the configuration must be justified in the "Comment modification" dialog. Open Open the dialog by selecting Options > Configuration. Elements The following describes the elements of the dialog. Operating instructions DuMaster D-480 ©BÜCHI Labortechnik AG...
  • Page 326 Data Defines the number of databits of the serial interface between the PC and the balance. Stop Defines the number of stopbits of the serial interface between the PC and the balance. Operating instructions DuMaster D-480 ©BÜCHI Labortechnik AG...
  • Page 327 Defining the analyzer / PC interface (on page 84).  Creating new sections (on page 77).  Granting authorizations (on page 81).  Defining the autoexport directory (on page 93).  Operating instructions DuMaster D-480 ©BÜCHI Labortechnik AG...

  • Page 328: Error Handling (Dialog)

    Configuring error handling (on page 122).  Interpreting PC error messages (on page 238).  Determining the daily factor (on page 142).  Optimizing basic instrument settings (on page 97).  Operating instructions DuMaster D-480 ©BÜCHI Labortechnik AG...

  • Page 329: Sleep / Wake-Up Function (Dialog)

    Continue after wake- Checkbox If there are any unprocessed samples in sample memory, up if there are analysis is automatically resumed after "wake-up". samples Button Wakes up the analyzer immediately. Wake up now Operating instructions DuMaster D-480 ©BÜCHI Labortechnik AG...

  • Page 330: Configure Key Value (Dialog)

    Discards settings not yet saved. Cancel Further information Further information includes instructions in which the dialog is used and knowledge articles concerning the dialog: Granting authorizations (on page 81).  Defining logon timeout (on page 76).  Operating instructions DuMaster D-480 ©BÜCHI Labortechnik AG...
  • Page 331 10 - Menu and dialog descriptions Creating new sections (on page 77).  Defining the analyzer / PC interface (on page 84).  Defining the autoexport directory (on page 93).  Device configuration (on page 325).  Operating instructions DuMaster D-480 ©BÜCHI Labortechnik AG...

  • Page 332: Windows Menu

    This section describes commands and dialogs for this menu. In this section Windows > Toolbar / Run-Bar (Command)..................333 Toolbar ............................333 Windows > Recent sample (Command) ..................334 Windows > Status view (Command) ....................334 Windows > Default layout (Command) ..................334 Operating instructions DuMaster D-480 ©BÜCHI Labortechnik AG...

  • Page 333: Windows > Toolbar / Run-Bar (Command)

    Edit > Undo Edit > Restore File > Print File > Print preview Statistics > Group Statistics > Include/Exclude sample View > Zoom in/out Calibration > Previous Calibration > Next Calibration > Previous sample Operating instructions DuMaster D-480 ©BÜCHI Labortechnik AG...

  • Page 334: Windows > Recent Sample (Command)

    This command switches the arrangement of the windows to its default settings: Displayed are Toolbar  Run bar  Recent sample  Status view  Setting of the balance windows will not be affected. Operating instructions DuMaster D-480 ©BÜCHI Labortechnik AG...

  • Page 335: Help Menu

    This section describes commands and dialogs for this menu. In this section Help > Content (Command) ......................336 Help > Find (Command) ......................336 Help > BÜCHI Labortechnik AG on the WEB (Command) ............336 Product registration (Dialog) ......................336 Help > About... (Command) ......................337 Operating instructions DuMaster D-480 ©BÜCHI Labortechnik AG...

  • Page 336: Help > Content (Command)

    Textbox Field to input user data. Note: These data are not mandatory. However, these data make it easier for BÜCHI's service department to identitfy customers if you have a problem and contact BÜCHI. Operating instructions DuMaster D-480 ©BÜCHI Labortechnik AG...

  • Page 337: Help > About

    If the system is connected, the version numbers of the individual modules are also displayed. They provide valuable information about the status of the system and what to do in the event of updates. Short cuts Invocation via the toolbar: Operating instructions DuMaster D-480 ©BÜCHI Labortechnik AG...

  • Page 339: Chapter 11 Appendix

    C H A P T E R 1 1 Appendix Target group Personnel involved with the instrument. In this chapter Revision history ...........................340 Warranty ............................341 Accessories, spare parts and consumables ................343 Declaration of conformity ......................347 Operating instructions DuMaster D-480 ©BÜCHI Labortechnik AG...

  • Page 340: Revision History

    11 - Appendix Revision history List of modifications in this document up to now Date Modification 29.09.2014 Creation 16.10.2014 made small text correction in the section "Replacing fuses" Operating instructions DuMaster D-480 ©BÜCHI Labortechnik AG...

  • Page 341: Warranty

    11 - Appendix Warranty Target group Personnel involved with the instrument. In this section Warranty of the overall instrument ....................342 Warranty on the furnace ......................342 Operating instructions DuMaster D-480 ©BÜCHI Labortechnik AG...

  • Page 342: Warranty Of The Overall Instrument

    In the event of furnace failure, the furnace must be sent at the following address for fault identification: BÜCHI Labortechnik AG, Meierseggstrasse 40, 9230 Flawil Switzerland If this analysis reveals that the furnace became defective due to improper use, all warranty claims shall be forfeited. Operating instructions DuMaster D-480 ©BÜCHI Labortechnik AG...

  • Page 343: Accessories, Spare Parts And Consumables

    Accessories, spare parts and consumables Target group Personnel involved with the instrument. Purpose This secton contains information about ordering accessories, spare parts and consumables. In this section Smallest workable unit .........................344 Required accessories ........................345 Optional accessories ........................346 Operating instructions DuMaster D-480 ©BÜCHI Labortechnik AG...

  • Page 344: Smallest Workable Unit

    16.03-8000 Instrument software German/English Instrument CD/DVD The CD/DVD provided with the instrument contains the following information: List of initial equipment  Various consumable sets  Catalog of spare parts  Operating instructions  Operating instructions DuMaster D-480 ©BÜCHI Labortechnik AG...

  • Page 345: Required Accessories

    If you want to use your own pressure reducer, it must be a two-stage precision pressure reducer of a higher quality category (Air Liquid or equivalent). Inferior reducing valves impair the results of analysis. Operating instructions DuMaster D-480 ©BÜCHI Labortechnik AG...

  • Page 346: Optional Accessories

    The following accessories are required for liquid samples / samples sensitive to air:  Capsule press  For dosed filling and gas-tight closure of tin capsules for liquid and sensitive samples  Prod. No. 41.05-0000  Operating instructions DuMaster D-480 ©BÜCHI Labortechnik AG...

  • Page 347: Declaration Of Conformity

    11 - Appendix Declaration of conformity Purpose This section includes the declaration of conformity of BÜCHI Labortechnik AG. In this section Declaration of conformity ......................348 Operating instructions DuMaster D-480 ©BÜCHI Labortechnik AG...

  • Page 348: Declaration Of Conformity

    Cleaning, assembling and installing the ball valve. - Defining the balance / PC interface - 85 Defining the Kjeldahl factor - 130 Column properties (Dialog) - 284 Defining the LIMS / PC interface - 84, 322 Combi view - 63 Operating instructions DuMaster D-480 ©BÜCHI Labortechnik AG...

  • Page 349: Index

    Maintaining the instrument - 165 Front view - 36 Maintaining the Ni flap and the O2 lance - 206 Functional units - 43 Maintenance intervals (Dialog) - 307 Furnace switch off/on (Dialog) - 289 Operating instructions DuMaster D-480 ©BÜCHI Labortechnik AG...
  • Page 350 Reacting to a power failure - 245, 277, 291, 310, Shutting down the instrument - 114 311, 312 Shutting the instrument down for long measuring Rear view - 37 breaks (switching off) - 115 Operating instructions DuMaster D-480 ©BÜCHI Labortechnik AG...
  • Page 351 Values for oxygen dosing - 135 Verify digital signature (Dialog) - 259 Versioning - 71, 72, 257 View > Graphic > Auto align (Command) - 283 View > Gridview > Auto align (Command) - 282 Operating instructions DuMaster D-480 ©BÜCHI Labortechnik AG...
  • Page 354 T +55 19 3849 1201 F +66 2 862 08 54 F +971 4 313 2861 F +55 19 3849 2907 bacc@buchi.com middleeast@buchi.com latinoamerica@buchi.com www.buchi.com www.buchi.com www.buchi.com We are represented by more than 100 distribution partners worldwide. Find your local representative at: www.buchi.com...

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