Metrohm 873 Biodiesel Rancimat Manual
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Metrohm 873 Biodiesel Rancimat Manual

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873 Biodiesel Rancimat
Manual
8.873.8003EN

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  • Page 1 873 Biodiesel Rancimat Manual 8.873.8003EN...
  • Page 3 Metrohm AG CH-9101 Herisau Switzerland Phone +41 71 353 85 85 Fax +41 71 353 89 01 info@metrohm.com www.metrohm.com 873 Biodiesel Rancimat Manual 8.873.8003EN 03.2009 jb/ars...
  • Page 4 Teachware Metrohm AG CH-9101 Herisau teachware@metrohm.com This documentation is protected by copyright. All rights reserved. Although all the information given in this documentation has been checked with great care, errors cannot be entirely excluded. Should you notice any mistakes please send us your comments using the address given above.

  • Page 5: Table Of Contents

    Mains cable and mains connection ........18 3.3.4 Switching the instrument on/off ..........19 Connecting a PC ..............19 3.4.1 Connecting the 873 Biodiesel Rancimat and the PC ....19 3.4.2 Installing the software ............19 3.4.3 Carrying out basic settings ............. 21 4 Operation Fundamentals of operation ..........
  • Page 6 Arranging windows ............. 137 GLP functions ..............138 4.8.1 General information on GLP and validation ......138 4.8.2 GLP monitoring ..............138 4.8.3 GLP status ................140 4.8.4 Carrying out GLP tests ............141 4.8.5 GLP results ................151 ￭￭￭￭￭￭￭￭ 873 Biodiesel Rancimat...
  • Page 7 Maintenance by Metrohm Service ........155 Replacing the dust filter ..........155 Regenerating or replacing the molecular sieve ..... 156 Self test when switching on ..........156 Quality Management and validation with Metrohm ..157 6 Troubleshooting Problems ................159 7 Technical specifications General data ..............
  • Page 8 Table of figures Figure 1 Measuring arrangement (schematic representation) ......3 Figure 2 Front 873 Biodiesel Rancimat ............7 Figure 3 Rear 873 Biodiesel Rancimat .............. 8 Figure 4 Mounting accessories for the air supply (rear of the instrument) ..11 Figure 5 Equipping the reaction and measuring vessels .........

  • Page 9: Introduction

    The measurements at the individual measuring positions can be started individually for this. Operation of the 873 Biodiesel Rancimat is realized completely via a PC connected to the RS-232 interface using the control and evaluation program 873 Biodiesel Rancimat. Up to 4 instruments can be connected to each PC, hence allowing a maximum of 32 samples to be analyzed.

  • Page 10: Rancimat Method

    It has mean- while become an integral element of various national and international standards for biodiesel and biodiesel mixtures, e.g. EN 14112 and ASTM 6751. ￭￭￭￭￭￭￭￭ 873 Biodiesel Rancimat...

  • Page 11: About The Documentation

    The first number refers to the figure number, the sec- ond to the instrument part in the figure. Instruction step Carry out these steps in the sequence shown. Method Dialog text, parameter in the software File ▶ New Menu or menu item ￭￭￭￭￭￭￭￭ 873 Biodiesel Rancimat...

  • Page 12: Safety Instructions

    Hot reaction vessels Warning The reaction vessels can become very hot. Avoid any contact with the hot reaction vessels. Place these in the vessel holders provided for cooling down. ￭￭￭￭￭￭￭￭ 873 Biodiesel Rancimat...

  • Page 13: Electrical Safety

    ￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭ 1 Introduction Flammable substances Warning The oven of the 873 Biodiesel Rancimat can be heated to 220 °C. Flammable substances may ignite at these temperatures. Adjust the maximum heating temperature of the oven to the sample being examined. Defective glass vessels Warning Caution with defective glass vessels.

  • Page 14: Flammable Solvents And Chemicals

    The correct disposal of your old equipment will help to prevent negative effects on the environment and public health. More details about the disposal of your old equipment can be obtained from your local authorities, from waste disposal companies or from your local dealer. ￭￭￭￭￭￭￭￭ 873 Biodiesel Rancimat...

  • Page 15: Overview Of The Instrument

    ￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭ 2 Overview of the instrument 2 Overview of the instrument Figure 2 Front 873 Biodiesel Rancimat Pilot lamp Gas flow display Lights up when the instrument is switched on. Flashes when the gas flow is switched on. Lights up when the gas flow has been reached.
  • Page 16 ￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭ 11 Reaction vessel (6.1429.040) Molecular sieve flask Filter Made by Metrohm Herisau Switzerland Type: Nr.: From flask flask Air out Fuse RS 232 Pt 100 100-115V: 4A(TH) 220-240V: 2A(TH) Air/N in WARNING - Fire Hazard - For continued protection replace only...
  • Page 17 17 FEP tubing 130 mm (6.1805.010) 18 "Air out" connection For connecting the Air out connection to the Air/N in connection during normal opera- tion with the internal air pump. 19 "To Flask" connection 20 Dust filter (6.2724.010) ￭￭￭￭￭￭￭￭ 873 Biodiesel Rancimat...

  • Page 18: Setting Up The Instrument

    The gas in the Biodiesel Rancimat is normally supplied using the internal air pump, which sucks in laboratory air. For air supply and air purifica- tion, the following accessories must be mounted on the rear of the Biodiesel Rancimat: ￭￭￭￭￭￭￭￭ 873 Biodiesel Rancimat...
  • Page 19 ￭ fresh air can be connected to the dust filter. Note The dust filter serves for filtering the air sucked through the air pump and must be replaced at periodic intervals (see Chapter 5.2, page 155). ￭￭￭￭￭￭￭￭ 873 Biodiesel Rancimat...
  • Page 20 11 ) onto the Air Screw the one end of the FEP tubing 130 mm (4- ￭ 10 ). out connection (4- Screw the other end of the FEP tubing onto the Air/N in connec- ￭ 12 ). tion (4- ￭￭￭￭￭￭￭￭ 873 Biodiesel Rancimat...

  • Page 21: Mounting Accessories For The External Air Supply

    (see Chapter 4.2.4, page 39). 3.2.3 Equipping the reaction and measuring vessels The following figure shows in detail, how the accessories parts for measuring the oxidation stability have to be mounted and connected to one another. ￭￭￭￭￭￭￭￭ 873 Biodiesel Rancimat...
  • Page 22 For removing the air from the measuring ves- For connecting the Iso-Versinic tubing to the sel. opening In (5- 13 Opening "In" 14 Labeling field For supplying the air to the measuring vessel. For entering the cell constant. ￭￭￭￭￭￭￭￭ 873 Biodiesel Rancimat...
  • Page 23 The foam barrier can melt if it projects too deeply into the heating block. 9 ) is at least 7 cm above the base of the Ensure that the foam barrier (5- 10 ). reaction vessel (5- ￭￭￭￭￭￭￭￭ 873 Biodiesel Rancimat...

  • Page 24: Inserting Vessels / Establishing Tubing Connections

    3.2.5 Mounting the exhaust collection tube (optional accessories) The optionally available exhaust collection tube 6.2757.000 can be mounted on the 873 Biodiesel Rancimat for targeted removal of the exhaust air. In ® addition to the exhaust collection tube, 8 Iso-Versinic tubings 6.1839.000...

  • Page 25: Mains Connection

    Follow the regulations below for the mains connection. 3.3.1 Checking the mains voltage Before switching the 873 Biodiesel Rancimat on for the first time, check 7 ) corresponds to whether the mains voltage indicated on the type plate (3- the mains voltage present. If this is not the case, please contact Metrohm Service.

  • Page 26: Replacing Fuses

    3.3.2 Replacing fuses Two fuses 4 A (slow-acting) for 115 V or 2 A (slow-acting) for 230 V are 6 ) of the 873 Biodiesel Rancimat as standard. installed in the fuse holder (3- Warning Ensure that the instrument is never put into operation with fuses of...

  • Page 27: Switching The Instrument On/Off

    Always switch the Biodiesel Rancimat and PC off before you connect the two devices with the RS-232 cable 6.2134.100. The PC program 873 Biodiesel Rancimat allows control of max. 4 instru- ments. The following options are available for connecting the instruments...
  • Page 28 The windows user must have administrator rights in order to be able to install 873 Biodiesel Rancimat. 3.4.2.2 Installing the program Proceed as follows to install 873 Biodiesel Rancimat: 1 Start the installation program Place the installation CD in the CD drive. The installation program is ￭...

  • Page 29: Carrying Out Basic Settings

    Windows Vista Caution If you run the software 873 Biodiesel Rancimat on a computer with Win- dows Vista, you need a special update in order to be able to display the help. Due to licensing reasons you have to download this file from a Microsoft web page.
  • Page 30 The dialog window Login opens again: 4 Log in as Administrator Enter the Administrator password set before in the Password field ￭ and confirm with [OK]. Confirm the message "There are no units configured yet!" with ￭ [OK]. ￭￭￭￭￭￭￭￭ 873 Biodiesel Rancimat...
  • Page 31 ￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭ 3 Installation Establishing the device communication 1 Follow the instructions in Section 4.2.1. ￭￭￭￭￭￭￭￭ 873 Biodiesel Rancimat...

  • Page 32: Fundamentals Of Operation

    If you are starting the program for the first time, you first have to set an Administrator password (see Chapter 3.4.3, page 21). 1 Start program In the Windows Start menu under Programs ▶ Metrohm ▶ Bio- ￭ diesel Rancimat, click on the menu item Biodiesel Rancimat.

  • Page 33: Terms

    4.1.3 Control window The dialog window 873 Biodiesel Rancimat Control serves for control- ling the devices, managing methods, displaying the live curves and accessing various program functions. The dialog window opens automatically when the program is started.
  • Page 34 Tools Manage cell constants, perform GLP tests, set timer, set gas flow control, start all channels, determine Delta T, record temperature, perform service diagnosis. ￭￭￭￭￭￭￭￭ 873 Biodiesel Rancimat...

  • Page 35: Results Window

    The dialog window 873 Biodiesel Rancimat Results serves for displaying, outputting and recalculating results of the determinations recorded with the 873 Biodiesel Rancimat. The determination data is saved in database files *.mrd and can be displayed in this dialog window in the form of overview tables and curves.
  • Page 36 Opening and closing the Results window Proceed as follows to open and close the Results window: 1 Open Results window In the dialog window 873 Biodiesel Rancimat Control, click on ￭ the menu item File ▶ Results... or the symbol When opening the Results window, the database Repos.mrd is auto-...
  • Page 37 Search in the database (see Chapter 4.7.1, page 83). Search Sort column in ascending order (see Chapter 4.7.1, page 83). Ascending Sort column in descending order (see Chapter 4.7.1, page 83). Descending Filter by selection (see Chapter 4.7.1, page 83). Selection-based filter ￭￭￭￭￭￭￭￭ 873 Biodiesel Rancimat...

  • Page 38: File Types

    *.mrd Database file This file contains the measured data and results of the determinations. The file repos.mrd is auto- matically saved in the directory Database. When exporting databases, the memory location can be freely selected. ￭￭￭￭￭￭￭￭ 873 Biodiesel Rancimat...

  • Page 39: Context-Sensitive Menus

    The cursor assumes the form of a magnifying glass. 2 Release mouse button Release the mouse button in order to magnify the selected area to ￭ the full size of the window. ￭￭￭￭￭￭￭￭ 873 Biodiesel Rancimat...

  • Page 40: Help

    Help ▶ Help topics or the key [F1]. Green text can be clicked on. This takes you to another help topic. Violet text marks menu items, parameters or buttons in the program. Blue text marks titles and important information. ￭￭￭￭￭￭￭￭ 873 Biodiesel Rancimat...

  • Page 41: Instrument And Program Settings

    Enter the number of connected instruments and confirm with ￭ [OK]. The following dialog window appears: 2 Select interface Under COM port, select the serial interface of the PC to which the ￭ instrument is connected. ￭￭￭￭￭￭￭￭ 873 Biodiesel Rancimat...

  • Page 42: Managing Access Rights

    3 Restart program Close the program with the menu item File ▶ Exit. ￭ In the Windows Start menu under Programs ▶ Metrohm ▶ Bio- ￭ diesel Rancimat, click on the menu item Biodiesel Rancimat. Enter the Administrator password and confirm with [OK].
  • Page 43 In the Control window, click on the menu item Options ▶ User ￭ permissions..2 Open Properties dialog Right click on the relevant group whose access rights are to be ￭ adjusted to select the menu item Properties..The following dialog window appears: ￭￭￭￭￭￭￭￭ 873 Biodiesel Rancimat...
  • Page 44 ￭ permissions..2 Create new user Right click on an existing group to select the menu item Add ￭ user..Under Enter new user name enter the name for the user and ￭ confirm with [OK]. ￭￭￭￭￭￭￭￭ 873 Biodiesel Rancimat...

  • Page 45: Timer

    The Biodiesel Rancimat has to be switched on and the software must be running. Two different examples will explain how to program the timer. ￭￭￭￭￭￭￭￭ 873 Biodiesel Rancimat...
  • Page 46 Proceed as follows to automatically start the heating of block B on a specific day of the week, at a specific time: 1 Open dialog window In the Control window, click on the menu item Tools ▶ Timer ￭ function..The following dialog window appears: ￭￭￭￭￭￭￭￭ 873 Biodiesel Rancimat...

  • Page 47: Gas Flow Control

    Proceed as follows: 1 Switch on Click on the menu item Tools ▶ Gas flow control ▶ Gas flow ￭ 2 Switch off Click on the menu item Tools ▶ Gas flow control ▶ Gas flow ￭ off. ￭￭￭￭￭￭￭￭ 873 Biodiesel Rancimat...

  • Page 48: Recording The Temperature

    The text file is saved under the name U#X-YYMMDD-hhmmss.txt in the folder Log, # denoting the instrument number (1...4), X denoting the block (A or B) and YYMMDD-hhmmss denoting the date and time when the data logging started. ￭￭￭￭￭￭￭￭ 873 Biodiesel Rancimat...

  • Page 49: Optimizing Program And Database

    The data which the program Biodiesel Rancimat requires for displaying the Results window is saved in the file Nachaus.prg. With the standard installation, this file is located at C:\Program Files\Metrohm\Biodiesel Ranci- mat\Template. As soon as the file is greater than 10 MB, you should optimize and compress the program, so that this file no longer has any superfluous data and the program runs faster again.

  • Page 50: Program Information

    ￭ (see Chapter 4.1.1, page 24). 2 Optimize database In the Windows Start menu, click on the menu item Pro- ￭ grams ▶ Metrohm ▶ Biodiesel Rancimat ▶ Opti- mize ▶ Database. Program information 4.3.1 Instrument information Displaying and printing the instrument information...
  • Page 51 Date of the last instrument adjustment with signature and code of the responsible body. Unit operating hours Number of hours during which the instrument was switched on. Pump operating hours Number of hours during which the internal pump was in operation. ￭￭￭￭￭￭￭￭ 873 Biodiesel Rancimat...

  • Page 52: Status Overview

    In the Control window, click on the menu item Options ▶ Save ￭ settings now. Meaning of the columns in the status overview Unit Instrument number (1…4). Block Instrument block (A or B). Channel Channel (1…4). Method Name of the method loaded. ￭￭￭￭￭￭￭￭ 873 Biodiesel Rancimat...

  • Page 53: Displaying, Filtering And Deleting Event Overview

    Proceed as follows to display and save all events of the Biodiesel Rancimats connected to the PC: 1 Open current log file In the Control window, click on the menu item View ▶ Event ￭ log overview. The following dialog window appears: ￭￭￭￭￭￭￭￭ 873 Biodiesel Rancimat...
  • Page 54 In the dialog window Open, select the required file and confirm ￭ with [OK]. Filtering entries in the event overview Proceed as follows to filter the entries in the event file: 1 Filter the entries Click on the required filter criterion (e.g.: date = "30.08.2006"). ￭ ￭￭￭￭￭￭￭￭ 873 Biodiesel Rancimat...
  • Page 55 - Information on correctly executed events. - Indication of a special event. - Error message for error event. Date Date of the event. The format depends on the settings defined in Windows in Control Panel ▶ Country settings ▶ Date. ￭￭￭￭￭￭￭￭ 873 Biodiesel Rancimat...

  • Page 56: Calibration Functions

    Entering cell constants manually Proceed as follows if you wish to enter the cell constants manually: 1 Open dialog window Click on the menu item Tools ▶ Cell constants ▶ Manual..￭ The following dialog window appears: ￭￭￭￭￭￭￭￭ 873 Biodiesel Rancimat...
  • Page 57 Click on the menu item Tools ▶ Cell constants ▶ Automatic..￭ The following dialog window appears: 2 Select channels and define conductivity Activate the check boxes of those channels, for which the cell con- ￭ stant is to be determined. ￭￭￭￭￭￭￭￭ 873 Biodiesel Rancimat...

  • Page 58: Determining Delta T

    (see Chapter 4.5.2, page 60). It can automatically be determined with the calibrated, external temperature sensor (part of the optionally available GLP test set, see Optional accesso- ries, page 180). ￭￭￭￭￭￭￭￭ 873 Biodiesel Rancimat...
  • Page 59 Thread adapter M8 / M6 (6.1808.090) Opening for temperature sensor For inserting the temperature sensor. Air tube O-ring (6.1454.040) Connector Reaction vessel cover (6.2753.107) For connecting the thread adapter M8 / M6. Spacer (6.2042.040) 10 Reaction vessel (6.1429.040) ￭￭￭￭￭￭￭￭ 873 Biodiesel Rancimat...
  • Page 60 In the Control window, select the required method for the heat- ￭ ing block for which the temperature correction Delta T is to be determined (see "Select method", page 77). ￭￭￭￭￭￭￭￭ 873 Biodiesel Rancimat...
  • Page 61 Click on the menu item Tools ▶ Determine Delta T ▶ Block A ￭ or Block B. The following dialog window appears: Enter a Sensor name. ￭ Enter the calibration data (temperature and resistance) for Points ￭ 1 to 3 and confirm with [OK]. ￭￭￭￭￭￭￭￭ 873 Biodiesel Rancimat...
  • Page 62 ￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭ 4.4 Calibration functions Note You can find the calibration data (T1 to T3) for Metrohm sensors on the certificate enclosed with the sensor or on the label fastened on the sensor cable. The following dialog window appears: 2 Wait for measurement Wait until the message Measured temperature is now stable! ￭...

  • Page 63: Methods

    Creating a new method Proceed as follows to create a new method: 1 Open empty method In the Control window, click on the symbol or the menu item ￭ File ▶ New method. The following dialog window appears: ￭￭￭￭￭￭￭￭ 873 Biodiesel Rancimat...
  • Page 64 You can find a detailed description of all tabs and their parameters at 4.5.2 Parameter description. 3 Save method Click on the [Save as...] button. ￭ The dialog window Save method as... opens. Enter the method name and confirm with [Save]. ￭ ￭￭￭￭￭￭￭￭ 873 Biodiesel Rancimat...
  • Page 65 The dialog window "Method name" appears. 2 Adjust parameters and save changes Adjust the parameters (see Chapter 4.5.2, page 60). ￭ Confirm the changes with [Save]. ￭ Renaming an existing method Proceed as follows to rename an existing method: ￭￭￭￭￭￭￭￭ 873 Biodiesel Rancimat...
  • Page 66 In the Control window, click on the symbol or the menu item ￭ File ▶ Open method..The dialog window Open method appears. Click on the required method and confirm the selection with ￭ [Open]. The dialog window "Method name" appears. ￭￭￭￭￭￭￭￭ 873 Biodiesel Rancimat...
  • Page 67 2 Select and delete method Click on the required method and then the button [Delete]. ￭ The safety prompt "Do you really want to delete method "method name"?" appears. Confirm the safety prompt with [Yes]. ￭ ￭￭￭￭￭￭￭￭ 873 Biodiesel Rancimat...

  • Page 68: Parameter Description

    This section explains all the parameters, arranged according to tab. 4.5.2.1 "Parameters" tab The most important parameters (temperature, gas flow, Delta T) for carrying out the measurement are set using this tab. The settings affect the progres- sion of the measurement curve recorded. ￭￭￭￭￭￭￭￭ 873 Biodiesel Rancimat...
  • Page 69 If no temperature sensor is available for determining Delta T, you can enter the approximate values listed in the table below, which have been deter- mined with 5 g silicone oil and a gas flow of 10 L/h (air). Range -9.9 ... 9.9 °C ￭￭￭￭￭￭￭￭ 873 Biodiesel Rancimat...
  • Page 70 | per 2 channels | per block per channel All channels can be started and stopped individually. per 2 channels 2 channels each can be started and stopped jointly. The [Start] button in the control window changes automatically for this. ￭￭￭￭￭￭￭￭ 873 Biodiesel Rancimat...
  • Page 71 (endpoint). ✔ ✔ after reaching the first criterion (time or end- point). If the time entered has been reached, there is no further measuring until the induction/ stability time (endpoint) has been reached. ￭￭￭￭￭￭￭￭ 873 Biodiesel Rancimat...
  • Page 72 4.5.2.2 "Evaluation" tab These settings serve for automatic evaluation of the curve. After finishing the measurement, curves can also be reevaluated in the database (see Chap- ter 4.7.3, page 108). ￭￭￭￭￭￭￭￭ 873 Biodiesel Rancimat...
  • Page 73 If you select this evaluation mode, you always need to calibrate the con- ductivity measuring cell beforehand. Delta Kappa Conductivity change for the determination of the stability time. Range 1 ... 400 µS/cm Options for induction time Evaluation delay Waiting time until starting the curve evaluation. ￭￭￭￭￭￭￭￭ 873 Biodiesel Rancimat...
  • Page 74 The break point can also be determined manually as the intersection point of the two tangents at the extended straight branches of the curve (see "Setting tangents manually", page 112). ￭￭￭￭￭￭￭￭ 873 Biodiesel Rancimat...
  • Page 75 The scaling of the x and y axis can be defined here. The settings have an effect on the expression of the curves, but not on the measurement and evaluation. After completing the determination, the scaling for single and live graphs can be changed again in the determination overview. ￭￭￭￭￭￭￭￭ 873 Biodiesel Rancimat...
  • Page 76 Automatic definition of the start and end value of the conductivity axis. Manual scaling Manual definition of the end value of the conductivity axis. End value End value of the conductivity axis with manual scaling. Range 10 ... 400 µS/cm ￭￭￭￭￭￭￭￭ 873 Biodiesel Rancimat...
  • Page 77 | off (Default value: off) If this option is switched on, the automatically determined stability time will be calculated with the entered values. The result will be saved under the name entered in the field "R2". ￭￭￭￭￭￭￭￭ 873 Biodiesel Rancimat...
  • Page 78 (see Chapter 4.7.5, page 117). Calculate standard time on | off (Default value: off) Activation/Deactivation of the calculation of the standard time according to the following formula: (Temperature - Target temperature)/10 Standard time = Factor x induction time Formula parameters ￭￭￭￭￭￭￭￭ 873 Biodiesel Rancimat...
  • Page 79 Header on | off (Default value: on) Output of the header with company settings (see ""Company settings" tab", page 133), date of the printout, sample identifications, instrument information, determination date, user, cell constant and serial number. ￭￭￭￭￭￭￭￭ 873 Biodiesel Rancimat...
  • Page 80 TXT file for further processing in other programs. The con- tent of this report is independent of the report elements defined at Include in report..Browse… Selection of the directory for saving this file. ￭￭￭￭￭￭￭￭ 873 Biodiesel Rancimat...
  • Page 81 Gas flow Stop at endpoint µS/cm Start delay Delta Kappa per channel 0.00 Start mode Evaluation delay per 2 channels 0.00 Evaluation delay start per block Evaluation delay end 0.00 Send to file GLP test passed. ￭￭￭￭￭￭￭￭ 873 Biodiesel Rancimat...
  • Page 82 ￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭ 4.5 Methods 4.5.2.7 "Description" tab You can enter a comment on the method in this tab. ￭￭￭￭￭￭￭￭ 873 Biodiesel Rancimat...

  • Page 83: Determinations

    Section 4.6.2 Section 4.6.3 Start determination Modify live parameters Section 4.6.5 Stop crit. reached? Section 4.6.6 Stop determination manually Determination finished Section 4.5.2.6 Automatic report output Section 4.7 Result display Section 4.6.4 Clean vessels and accessories ￭￭￭￭￭￭￭￭ 873 Biodiesel Rancimat...

  • Page 84: Preparing The Instrument And The Accessories

    Insert the measuring vessels with the measuring vessel covers into ￭ the openings provided for this on the 873 Biodiesel Rancimat and, 15 ) of the at the same time, carefully guide the connection plugs (5- 2 ).

  • Page 85: Preparing The Determination

    4.6.2 Preparing the determination 1 Select method Under Unit x Block A, click on the symbol in order to select the ￭ method for Block A. If required, also select a method for Block B. ￭ ￭￭￭￭￭￭￭￭ 873 Biodiesel Rancimat...
  • Page 86 The entry for ID1 can be selected from the automatically created list of already entered identifications. This list can be deleted again in the Control window with the menu item Options ▶ Clear sample ID1 history. ￭￭￭￭￭￭￭￭ 873 Biodiesel Rancimat...

  • Page 87: Starting The Determination

    After the determination has been started, the live curve is displayed for every channel: As soon as a stop criterion defined in the method (see table 2, page 63) has been reached, the determination is ended: ￭￭￭￭￭￭￭￭ 873 Biodiesel Rancimat...

  • Page 88: Cleaning The Instrument And Accessories

    3 Clean the tubings 2 ) with acetone or 2-propanol Clean the Iso-Versinic ® tubings (5- ￭ and rinse with distilled water. Pre-clean with washing-up liquid in the case of severe contamination. ￭￭￭￭￭￭￭￭ 873 Biodiesel Rancimat...

  • Page 89: Adjusting The Method Parameters During The Determination

    Determinations are normally automatically stopped after reaching the stop criteria defined in the method. Current determinations can also be stopped manually. 1 Stop determination In the Control window, click on the button [Stop]. ￭ The message Do you want to save this determination? appears. ￭￭￭￭￭￭￭￭ 873 Biodiesel Rancimat...

  • Page 90: Status Of The Live Curve

    Determination started. Current measurement. The first measured value is meas- Measured value and time are dis- ured. played above the live curve. After a determination: Determination finished. The channel is ready for starting a new determination. ￭￭￭￭￭￭￭￭ 873 Biodiesel Rancimat...

  • Page 91: Results

    In the Results window, click on the menu item File ▶ Open ￭ database..The dialog window Open database appears. Click on the required database and confirm the selection with ￭ [OK]. Formatting the determination overview Proceed as follows to format the determination overview. ￭￭￭￭￭￭￭￭ 873 Biodiesel Rancimat...
  • Page 92 Click in any cell of the column whose width is to be adjusted. ￭ Click on the menu item Format ▶ Adjust width. ￭ The following dialog window appears: Under Column width, enter the number of characters of a column ￭ and confirm with [OK]. ￭￭￭￭￭￭￭￭ 873 Biodiesel Rancimat...
  • Page 93 Drag the column width to the required size keeping the left mouse ￭ button pressed down. 3 Adjust the cell format Click on the menu item Format ▶ Fields..￭ The following dialog window appears: Carry out the required settings and confirm with [OK]. ￭ ￭￭￭￭￭￭￭￭ 873 Biodiesel Rancimat...
  • Page 94 The cursor assumes the following form: Keep the mouse button pressed down and move over the left edge ￭ of all lines to be selected. 3 Select all lines Click on the menu item Edit ▶ Select all records. ￭ ￭￭￭￭￭￭￭￭ 873 Biodiesel Rancimat...
  • Page 95 The entire column is highlighted in black. Click on the symbol or the menu item Determina- ￭ tion ▶ Sort ▶ Descending. 3 Remove sorting again or the menu item Determination ▶ Fil- Click on the symbol ￭ ter ▶ Remove filter/sorting. ￭￭￭￭￭￭￭￭ 873 Biodiesel Rancimat...
  • Page 96 2 Remove the filter again or the menu item Determination ▶ Fil- Click on the symbol ￭ ter ▶ Remove filter/sorting. All entries are once again displayed in the dialog window. ￭￭￭￭￭￭￭￭ 873 Biodiesel Rancimat...
  • Page 97 In the dialog window Anzeigeübersicht, only those field are avail- able for selection which are displayed in the determination overview (see "Formatting the determination overview", page 83). The two fields are displayed in the lower part of the window under Field: ￭￭￭￭￭￭￭￭ 873 Biodiesel Rancimat...
  • Page 98 See "Selecting determinations", page 86. ￭ 2 Delete the entry Click on the menu item Determination ▶ Delete. ￭ The safety prompt Do you really want to delete the selected determinations? appears. Confirm the security query with [Yes]. ￭ ￭￭￭￭￭￭￭￭ 873 Biodiesel Rancimat...
  • Page 99 Date and time at which the determination was started. Block Letter of the block used for the determination. Delta Kappa Conductivity change for the determination of the stability time. Formula 1 for induction time Result of the calculation with formula 1. ￭￭￭￭￭￭￭￭ 873 Biodiesel Rancimat...
  • Page 100 Standard time Automatically calculated standard time. Serial number Serial number of the instrument used to record the determination. Stability time Automatically or, with the reevaluation, manually determined stability time. Temperature Temperature as defined in the method. ￭￭￭￭￭￭￭￭ 873 Biodiesel Rancimat...
  • Page 101 Move all fields in Display to Selection. Column width Width of the column in characters. Input 'Number of characters' Standard width on | off (Default value: on) Reset the column width to standard width (18.5 characters). ￭￭￭￭￭￭￭￭ 873 Biodiesel Rancimat...
  • Page 102 Flat view of the cells. Raised Raised view of the cells. Sunken Sunken view of the cells. Gridline Color Color of the horizontal and vertical grid lines. Color Selection Background color Color of the cell background. Selection Color ￭￭￭￭￭￭￭￭ 873 Biodiesel Rancimat...
  • Page 103 Color Color for the selected font type. Selection Color Font style Choice of font style for the selected font type. Selection Standard | Italic | Bold | Bold italic Sample Display of the selected font type. ￭￭￭￭￭￭￭￭ 873 Biodiesel Rancimat...
  • Page 104 The search is only successful if the entire field matches the search term. Start of field The search is successful if the start of the field content matches the search term. Any part of field The search is successful if the field content partly matches the search term. ￭￭￭￭￭￭￭￭ 873 Biodiesel Rancimat...
  • Page 105 Continue with the search at the cursor location in the determination over- view. Field Selection of a field (column) from the determination overview. Selection Field from the determination overview Sort Sorting for the selected field. Ascending | Descending | (not sorted) Selection ￭￭￭￭￭￭￭￭ 873 Biodiesel Rancimat...
  • Page 106 Examples > 10 Values greater than 10. *oil* All data with "oil" as part of the name. *2007* All data of the year 2007. Between Date() All data of the previous week. And (Date() - 7) ￭￭￭￭￭￭￭￭ 873 Biodiesel Rancimat...

  • Page 107: Determination And Method Data

    In the Results window, click on the symbol or the menu item ￭ View ▶ Determination and method data. The dialog window Determination and method data appears. Printing and exporting determination and method data See Chapter 4.7.6, Page 124. Parameter description ￭￭￭￭￭￭￭￭ 873 Biodiesel Rancimat...
  • Page 108 GLP test not passed: The last GLP test carried out was not passed. GLP test passed: The last GLP test carried out was passed. Display of the instrument, block and channel on which the determination was carried out. ￭￭￭￭￭￭￭￭ 873 Biodiesel Rancimat...
  • Page 109 Result of the calculation with formula 1. Formula 2 for stability time Result of the calculation with formula 2. Formula 3 for stability time Result of the calculation with formula 3. Standard time Automatically calculated standard time. ￭￭￭￭￭￭￭￭ 873 Biodiesel Rancimat...
  • Page 110 Name of the method. Creation date Date when the method was last saved. Creator Name of the logged in user who last saved the method. Method description Description of the method. Temperature Setpoint temperature of the sample. ￭￭￭￭￭￭￭￭ 873 Biodiesel Rancimat...
  • Page 111 Actions at end of determinations... Shut off heater The heating was automatically deactivated at the end of the determination. Shut off gas flow The gas flow was automatically deactivated at the end of the determination. ￭￭￭￭￭￭￭￭ 873 Biodiesel Rancimat...
  • Page 112 Time from the start of the determination to the start of the evaluation sup- pression. Time from the start of the determination to the end of the evaluation sup- pression. Evaluation sensitivity Evaluation sensitivity used for the determation of the induction time. ￭￭￭￭￭￭￭￭ 873 Biodiesel Rancimat...
  • Page 113 Formula 3 for stability time The automatically determined stability time was calculated with these values and saved under the name shown in the field "R3". Calculation of standard time Indicates whether the standard time has been calculated or not. ￭￭￭￭￭￭￭￭ 873 Biodiesel Rancimat...
  • Page 114 Autoscaling Automatic definition of the start and end value of the conductivity axis. Manual scaling Manual definition of the end value of the conductivity axis. End value End value of the conductivity axis with manual scaling. ￭￭￭￭￭￭￭￭ 873 Biodiesel Rancimat...
  • Page 115 Formula 1...3. Automatic report output Send to printer immediately Automatic printout of the report after finishing the determination. Send to file Automatic output of determination and method data after finishing the determination as a TXT file. ￭￭￭￭￭￭￭￭ 873 Biodiesel Rancimat...

  • Page 116: Graph And Reevaluation

    You have the following options for reevaluation of graphs: Setting the induction time manually ￭ Setting the stability time manually ￭ Setting tangents manually ￭ ￭￭￭￭￭￭￭￭ 873 Biodiesel Rancimat...
  • Page 117 If present, the determined induction time (▼) and stability time (▲) are displayed as well. 4 Open live graph Select the determination for which a reevaluation of the measure- ￭ ment curve is to be performed (see "Selecting determinations", page 86). ￭￭￭￭￭￭￭￭ 873 Biodiesel Rancimat...
  • Page 118 (see Chapter 4.5.2.3, page 67) is canceled. If this option is activated, the start and end values of the axes are auto- matically specified in such a way that all measured values are visible. ￭￭￭￭￭￭￭￭ 873 Biodiesel Rancimat...
  • Page 119 Live graph at the top right beside the red line and also in the dialog window Reevaluation under Manual. 3 Save changes In the dialog window Live graph click on the button [Save]. ￭ The new induction time is accepted in the determination overview. ￭￭￭￭￭￭￭￭ 873 Biodiesel Rancimat...
  • Page 120 Reevaluation in the context-sensitive menu. The dialog window Reevaluation appears. 2 Set first tangent Click on the symbol ￭ Keep the [Ctrl] key and left mouse button pressed down to set ￭ the first tangent. ￭￭￭￭￭￭￭￭ 873 Biodiesel Rancimat...

  • Page 121: Extrapolation

    In addition, the factor for converting the induction time to the standard time can be determined. A detailed description of the parameters can be found at "Parameter description", page 116. ￭￭￭￭￭￭￭￭ 873 Biodiesel Rancimat...
  • Page 122 The time determined for a particular sample by extrapolation to low target temperatures (e.g. 25 °C) is a purely theoretical value. The interrelation between this time and e.g. the perishability of the sam- ple must be determined experimentally. ￭￭￭￭￭￭￭￭ 873 Biodiesel Rancimat...
  • Page 123 Under correlation limit (r ) enter a value between 0 and 1 and ￭ confirm with [OK]. Copying a graph and pasting it into other programs See "Copying graphs and pasting them into other programs", page 111. ￭￭￭￭￭￭￭￭ 873 Biodiesel Rancimat...
  • Page 124 Results Formula Exponential formula for calculating the time extrapolated from the measured values for the target temperature. Calculated coefficient A of the exponential formula. Calculated coefficient B of the exponential formula. ￭￭￭￭￭￭￭￭ 873 Biodiesel Rancimat...

  • Page 125: Recalculating A Determination

    Recalculating the induction time Proceed as follows to recalculate the induction time: 1 Open dialog window Select the determination which is to be recalculated (see "Selecting ￭ determinations", page 86). Click on the menu item Determination ▶ Recalculation. ￭ ￭￭￭￭￭￭￭￭ 873 Biodiesel Rancimat...
  • Page 126 Click on the menu item Determination ▶ Recalculation. ￭ The dialog window Recalculation appears. 2 Adjust the parameters Activate the options Recalculate stability time and Calculation ￭ active. Under Delta Kappa enter the required value and confirm with ￭ [OK]. ￭￭￭￭￭￭￭￭ 873 Biodiesel Rancimat...
  • Page 127 Proceed as follows to recalculate the standard time: 1 Open dialog window Select the determination which is to be recalculated (see "Selecting ￭ determinations", page 86). Click on the menu item Determination ▶ Recalculation. ￭ The dialog window Recalculation appears. ￭￭￭￭￭￭￭￭ 873 Biodiesel Rancimat...
  • Page 128 Calculation active on | off (Default value: on) If this option is activated, the parameters can be re-entered for the calcu- lation of the induction time. If this option is deactivated, the original result is deleted. ￭￭￭￭￭￭￭￭ 873 Biodiesel Rancimat...
  • Page 129 If this option is activated, Delta Kappa can be re-entered for the calcu- lation of the stability time. If this option is deactivated, the original result is deleted. Delta Kappa Conductivity change for the determination of the stability time in µS/cm. ￭￭￭￭￭￭￭￭ 873 Biodiesel Rancimat...
  • Page 130 If this option is deactivated, the original result is deleted. Recalculate formula 3 for stability time on | off (Default value: off) Activate/Deactivate the recalculation of the result calculated with formula 3. If the recalculation is deactivated, the original result is kept. ￭￭￭￭￭￭￭￭ 873 Biodiesel Rancimat...
  • Page 131 If this option is deactivated, the original result is deleted. Formula parameters Factor Parameter for the calculation of the standard time, which indicates the factor by which the time changes per 10 °C. Target temperature Target temperature for the calculation of the standard time. ￭￭￭￭￭￭￭￭ 873 Biodiesel Rancimat...

  • Page 132: Printing And Exporting Data

    1 Display determination overview See "Displaying the determination overview", page 83. ￭ 2 Select type of output (table or list) or the menu item File ▶ Print..Click on the symbol ￭ The dialog window Printing of... appears. ￭￭￭￭￭￭￭￭ 873 Biodiesel Rancimat...
  • Page 133 Select the option All determination and method data and con- ￭ firm with [Print]. The dialog window Print appears. 4 Print data Select the required printer and click on [Print]. ￭ The determination and method data will be printed. ￭￭￭￭￭￭￭￭ 873 Biodiesel Rancimat...
  • Page 134 The dialog window Printing of... appears. Select the option Determination according to method and ￭ confirm with [Print]. The dialog window Print appears. 4 Print report Select the required printer and click on [Print]. ￭ The report will be printed. ￭￭￭￭￭￭￭￭ 873 Biodiesel Rancimat...
  • Page 135 ID 1, ID 2, temperature and result: 1 Display extrapolation results See "Extrapolation of several results", page 114. ￭ ￭￭￭￭￭￭￭￭ 873 Biodiesel Rancimat...
  • Page 136 TXT file: 1 Display determination overview See "Displaying the determination overview", page 83. ￭ 2 Select determination Select the determination of which the data is to be exported (see ￭ "Selecting determinations", page 86). ￭￭￭￭￭￭￭￭ 873 Biodiesel Rancimat...
  • Page 137 Confirm the selection or entry with [Save]. ￭ The following message appears (only for the Administrator): 4 Keep or delete determination Click on [No] to also keep the exported determination in the orig- ￭ inal database. ￭￭￭￭￭￭￭￭ 873 Biodiesel Rancimat...
  • Page 138 Each database is password-protected. The password is generated auto- matically by the program and can only be read by the Administrator. The databases are saved in the installation directory of the 873 Biodiesel Rancimat program at C:\Program Files\Metrohm\Biodiesel Ranci- mat\Database. 1 Open Results window...

  • Page 139: Program Settings

    In the Results window, click on the menu item Options ▶ Set- ￭ tings. 2 Carry out settings See the following "Report settings" tab. ￭ 4.7.7.1 Parameter description "Report settings" tab On the Report settings tab, you can carry out the settings for the report output. ￭￭￭￭￭￭￭￭ 873 Biodiesel Rancimat...
  • Page 140 Method parameters on | off (Default value: on) Output of the method parameters. Method description on | off (Default value: on) Output of the method description entered in the tab Description. Definition for multiple graph printing ￭￭￭￭￭￭￭￭ 873 Biodiesel Rancimat...
  • Page 141 The company logo is printed out on the right edge of the header. Company text The text entered here is printed out on the side of the header opposite the company logo. Input Characters ￭￭￭￭￭￭￭￭ 873 Biodiesel Rancimat...
  • Page 142 Formula 3 for stability time on | off (Default value: off) Standard time on | off (Default value: off) "Scaling" tab On the Scaling tab, you can carry out the settings for scaling the curve axes. ￭￭￭￭￭￭￭￭ 873 Biodiesel Rancimat...
  • Page 143 Y Start Start value of the conductivity axis in µS/cm. Y End End value of the conductivity axis in µS/cm. "Extrapolation" tab On the Extrapolation tab, you can carry out the settings for the extrapo- lation. ￭￭￭￭￭￭￭￭ 873 Biodiesel Rancimat...
  • Page 144 Temperature, for which the selected result is to be converted. The conversion is realized using the regression straight line (from the extrapolation). Range freely selectable ... °C "Live graph" tab On the Live graph tab, you can carry out the settings for displaying the live graph. ￭￭￭￭￭￭￭￭ 873 Biodiesel Rancimat...

  • Page 145: Arranging Windows

    – GLP window (View ▶ GLP) 2 Arrange windows Click on the menu item Window ▶ Tile vertically or Win- ￭ dow ▶ Tile horizontally or Window ▶ Cascade. The opened dialog windows are correspondingly arranged. ￭￭￭￭￭￭￭￭ 873 Biodiesel Rancimat...

  • Page 146: Glp Functions

    If the GLP function is activated, each results report receives a comment whether the GLP tests are fulfilled. Metrohm offers a GLP test set to carry out these tests (see Optional accessories, page 180).
  • Page 147 Enable GLP monitoring and confirm with [OK]. Parameter description Enable GLP monitoring on | off (Default value: off) Switch on/Switch off automatic GLP monitoring. GLP alert interval Number of days until the implementation of the next GLP test. ￭￭￭￭￭￭￭￭ 873 Biodiesel Rancimat...

  • Page 148: Glp Status

    Date on which the next GLP test is to be carried out. If the GLP monitoring is not switched on, Disabled appears in this column. Due in Number of days until the next GLP test. Last test result Indication whether the test has been passed (Ok) or not (Not Ok!). ￭￭￭￭￭￭￭￭ 873 Biodiesel Rancimat...

  • Page 149: Carrying Out Glp Tests

    (part of the optionally available GLP test set, see Optional accessories, page 180). For this, the temperature sensor must be connected to the Pt100 connector on the rear of the 873 Biodiesel Rancimat. Figure 7 Accessories for GLP test Temperature...
  • Page 150 Under Unit x Block A and B, click on the symbol in order to ￭ select the method whose temperature is required for the test. If required, adjust the temperature (see "Opening a selected ￭ method and adjusting parameters", page 57). ￭￭￭￭￭￭￭￭ 873 Biodiesel Rancimat...
  • Page 151 Under Channels used for test, select the required channels. One ￭ channel per block has to be selected at least. Under Test duration per channel, enter the required test dura- ￭ tion and confirm with [Next >]. ￭￭￭￭￭￭￭￭ 873 Biodiesel Rancimat...
  • Page 152 141) in the channel of Block A to be checked. Connect the temperature sensor to the Pt100 connector on the rear ￭ of the 873 Biodiesel Rancimat. In the dialog window GLP test for unit with serial no. x, click ￭...
  • Page 153 Test passed: The deviation of the measured temperatures is within the specified tolerance. ✗ Test failed: The deviation of the measured temperatures is greater than the specified tolerance. Confirm the results with [Finish]. ￭ Reject the results with [Cancel]. ￭ ￭￭￭￭￭￭￭￭ 873 Biodiesel Rancimat...
  • Page 154 GLP test is to be carried out. Carrying out the GLP test with the test resistor: continue with ￭ step 2. Carrying out the GLP test with the standard solution: continue with step 3. ￭￭￭￭￭￭￭￭ 873 Biodiesel Rancimat...
  • Page 155 ￭ 3 Carry out GLP test with standard solution Insert a measuring vessel, each filled with 60 mL standard solution, ￭ together with the measuring vessel cover at all measuring position (see Chapter 4.6, page 75). ￭￭￭￭￭￭￭￭ 873 Biodiesel Rancimat...
  • Page 156 138 µS/cm 23 °C 141 µS/cm 24 °C 144 µS/cm 25 °C 147 µS/cm The conductivity is measured sequentially at all channels. After the last measurement is completed, the dialog window with the test results appears. ￭￭￭￭￭￭￭￭ 873 Biodiesel Rancimat...
  • Page 157 Gas flow For the GLP test for gas flow measurement, you require a gas flow measuring device (not available from Metrohm), which can be used to measure the gas flow at every channel. Carrying out the GLP test for the gas flow measurement...
  • Page 158 Measure the gas flow sequentially for all channels and enter the ￭ values in the corresponding fields K1…K4 in L/h. After finishing the measurement, confirm the entries with ￭ [Next >]. The dialog window with the test results appears. ￭￭￭￭￭￭￭￭ 873 Biodiesel Rancimat...

  • Page 159: Glp Results

    (see "Activating/Deactivating GLP monitoring", page 138). For the selected instrument, you can print a GLP certificate, which contains the following information: Print date, serial number of the instrument, results of the last GLP tests (with date, test person and test results). ￭￭￭￭￭￭￭￭ 873 Biodiesel Rancimat...
  • Page 160 28). In the Results window, click on the menu item View ▶ GLP and ￭ select the required test results (Temperature, Conductivity, Gas flow). The following dialog windows appear, depending on the selection previously made. ￭￭￭￭￭￭￭￭ 873 Biodiesel Rancimat...
  • Page 161 2 Select data In the Results window, click on the menu item File ▶ Print..￭ If the database contains GLP test results which have been attained with different instruments, the dialog window Select unit appears. ￭￭￭￭￭￭￭￭ 873 Biodiesel Rancimat...
  • Page 162 Printout of the detailed results for all GLP tests for temperature meas- urement. All conductivity GLPs Printout of the detailed results for all GLP tests for conductivity measure- ment. All gas flow GLPs Printout of the detailed results for all GLP tests for gas flow measurement. ￭￭￭￭￭￭￭￭ 873 Biodiesel Rancimat...

  • Page 163: Handling And Maintenance

    5.1.2 Maintenance by Metrohm Service Maintenance of the 873 Biodiesel Rancimat is best carried out as part of an annual service, which is performed by technicians of the Metrohm company. If working frequently with caustic and corrosive chemicals, a shorter main- tenance interval could be necessary.

  • Page 164: Regenerating Or Replacing The Molecular Sieve

    Switch the instrument off and on again. If the error occurs again, please notify Metrohm Service. Device PROM checksum test Switch the instrument off error. and on again. If the error occurs again, please notify Metrohm Service. ￭￭￭￭￭￭￭￭ 873 Biodiesel Rancimat...

  • Page 165: Quality Management And Validation With Metrohm

    Metrohm» available from your local Metrohm agent. Validation Please contact your local Metrohm agent for support in validating instru- ments and software. Here you can also obtain validation documentation to provide help for carrying out the Installation Qualification (IQ) and the Operational Qualification (OQ).
  • Page 166 ￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭ 5.5 Quality Management and validation with Metrohm Note You can find information on the subjects of quality management, valida- tion and maintenance as well as an overview of the documents currently under Support. available at www.metrohm.com/com/ ￭￭￭￭￭￭￭￭ 873 Biodiesel Rancimat...

  • Page 167: Troubleshooting

    (5- ). A slight air flow vessel (it does not bub- must be discerned here. If this is not ble), although the the case, please contact Metrohm pump is running. Service. Check FEP tubing (2- ) for blockages.
  • Page 168 Check cell constant of the measuring cell. cell is contaminated. The cell constant should be between 1.0 and 1.2. If this is not the case, the meas- uring cell must be cleaned (see Chapter 4.6.4, page 80). ￭￭￭￭￭￭￭￭ 873 Biodiesel Rancimat...
  • Page 169 Ensure that the measuring cell is not ￭ contaminated. If necessary, clean (see Chapter 4.6.4, page 80). ￭￭￭￭￭￭￭￭ 873 Biodiesel Rancimat...
  • Page 170 In some cases ultra pure water con- ￭ tains a large proportion of dissolved air which escapes during measure- ment. In this case, degas the ultra pure water before the measurement for 5 to 10 min in a vacuum. ￭￭￭￭￭￭￭￭ 873 Biodiesel Rancimat...
  • Page 171 64). prevents the evaluation of the curve in the corresponding time period. Automatic detection of the Keep the determination running until the induction time is not yet possi- induction time is automatically found. ble. ￭￭￭￭￭￭￭￭ 873 Biodiesel Rancimat...
  • Page 172 (220 °C) has been exceeded by If the error occurs again, please contact 10 °C. Metrohm Service. Error during self test. Switch the instrument off and on again. Error If the error occurs again, please contact Metrohm Service. ￭￭￭￭￭￭￭￭ 873 Biodiesel Rancimat...

  • Page 173: Technical Specifications

    Max. temperature typ. < 0.3 °C difference between different measuring posi- tions per block Temperature fluc- typ. < 0.1 °C tuations (at attained operating temperature, inserted and identically filled reaction vessels and 20 L/h air throughput) ￭￭￭￭￭￭￭￭ 873 Biodiesel Rancimat...

  • Page 174: Conductivity Measurement

    (the exact value can be entered manually or determined automatically) Measuring range 0…400 µS/cm Resolution 0.1 µS/cm ±1 % ± 0.5 µS/cm Maximum error Gas flow regulation Pump Membrane pump Adjustable range 7…25 L/h Max. deviation ±10 % from the set range ￭￭￭￭￭￭￭￭ 873 Biodiesel Rancimat...

  • Page 175: Glp Test Set

    2.873.0014: 220…240 V ± 10 % 2.873.0015: 100…120 V ± 10 % Frequency 50…60 Hz Power consump- 450 W tion Fuse Diameter 5 mm, length 20 mm 100…120 V: 2.0 ATH (slow-acting) 220…240 V: 4.0 ATH (slow-acting) ￭￭￭￭￭￭￭￭ 873 Biodiesel Rancimat...

  • Page 176: Safety Specification

    EN/IEC 61000-4-2 ￭ EN/IEC 61000-4-3 ￭ EN/IEC 61000-4-4 ￭ EN/IEC 61000-4-5 ￭ EN/IEC 61000-4-6 ￭ EN/IEC 61000-4-11 ￭ 7.10 Ambient temperature Nominal function +5…+45 °C range (at 20…80 % humidity) Storage –20…+70 °C Transport –40…+70 °C ￭￭￭￭￭￭￭￭ 873 Biodiesel Rancimat...

  • Page 177: Housing

    Polyurethane hard foam (PUR) with flame retardation for fire class UL94VO, CFC-free Base material Steel, painted Width 405 mm Height 268 mm (without accessories) 353 mm (with accessories) Depth 466 mm Weight 20.2 kg (without accessories) 27.6 kg (with accessories) ￭￭￭￭￭￭￭￭ 873 Biodiesel Rancimat...

  • Page 178: Conformity And Warranty

    Name of commodity 873 Biodiesel Rancimat Instrument for automatic determination of the oxidation stability of bio- diesel and its blends.

  • Page 179: Quality Management Principles

    ￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭ 8 Conformity and warranty Metrohm Ltd. is holder of the SQS certificate ISO 9001:2000 Quality man- agement system for development, production and sales of instruments and accessories for ion analysis. Herisau, 23 January, 2009 D. Strohm A. Dellenbach Vice President, Head of R&D...

  • Page 180: Warranty (Guarantee)

    Warranty (guarantee) Metrohm guarantees that the deliveries and services it provides are free from material, design or manufacturing errors. The warranty period is 36 months from the day of delivery; for day and night operation it is 18 months. The warranty remains valid on condition that the service is provided by an authorized Metrohm service organization.

  • Page 181: Accessories

    ￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭ 9 Accessories 9 Accessories Note Subject to change without notice. Scope of delivery 2.873.0014 and 2.873.0015 873 Biodiesel Rancimat Qty. Order no. Description 1.873.0014 873 Biodiesel Rancimat (230 V) 1.873.0015 (115 V) 6.0913.130 Measuring vessel cover for stability measur- ing instruments With built-in conductometric measuring cell.
  • Page 182 Inner diameter (mm): 6.1454.040 O-ring O-ring for air tube for stability measurements. Set of 6 pieces. Material: Nitrile rubber Height (mm): Inner diameter (mm): 6.1602.145 Drying flask cover Screw cap with GL45 thread for 6.1608.050 drying bottle. ￭￭￭￭￭￭￭￭ 873 Biodiesel Rancimat...
  • Page 183 FEP tubing / M6 / 13 cm With light and kink protection. Material: Inner diameter (mm): Length (mm): 6.1805.080 FEP tubing / M6 / 25 cm With light and kink protection. Material: Inner diameter (mm): Length (mm): ￭￭￭￭￭￭￭￭ 873 Biodiesel Rancimat...
  • Page 184 Length (mm): 31.5 6.1808.090 Thread adapter M8 outer / M6 inner Outer thread M8, inner thread M6, e.g. for mounting 6.2418.XXX air tubes in 6.1429.XXX reaction vessels of stability measuring instru- ments. Material: PVDF Length (mm): ￭￭￭￭￭￭￭￭ 873 Biodiesel Rancimat...
  • Page 185 Material: Outer diameter (mm): Inner diameter (mm): Length (mm): 6.2041.190 Holder for reaction vessels Reaction vessel holder for stability instruments; for 8 reaction vessels. Material: Aluminum Width (mm): Height (mm): Depth (mm): ￭￭￭￭￭￭￭￭ 873 Biodiesel Rancimat...
  • Page 186 Qty. Order no. Description 6.2134.100 RS-232 cable 5 m, 9-pin - 9-pin Connecting Metrohm RS-232 interface - Titrinos, 756 KF Coulometer, 762 or 771 IC Interfaces, 790 Personal IC, 743 Rancimat, 763 PVC Thermomat, 873 Biodiesel Rancimat. Length (m): 6.2250.000 Labels laminated Labels for measuring vessel cover for stability measuring instruments.
  • Page 187 Molecular sieve. Bottle containing 250 g. Pore size: 0.3 nm. Without moisture indicator. For Rancimats and Karl Fischer instruments. 6.6060.010 873 Biodiesel Rancimat software 1.1 Software for instrument control and data handling. 6.2122.0x0 Mains cable with C13 line socket IEC-60320- Cable plug according to customer requirements.

  • Page 188: Optional Accessories

    Turning ring for the swiveling setup of stability measuring instruments. Height (mm): Outer diameter (mm): 6.2125.110 RS-232 cable 3 m, 25-pin - 9-pin Connecting Metrohm RS-232 interface - PC. Used with pH Meters, Titrinos, KF Coulometers, VA Trace Analyzer. Length (m): ￭￭￭￭￭￭￭￭ 873 Biodiesel Rancimat...
  • Page 189 Including 8 stoppers. Outer diameter (mm): Length (mm): 6.2821.090 Aspiration filter Pore size 20 µm, set of 5 pieces. For 6.1834.000 aspiration tubing and 6.1821.040 and 6.1821.050 filter tubes. Material: Outer diameter (mm): Length (mm): 35.5 ￭￭￭￭￭￭￭￭ 873 Biodiesel Rancimat...
  • Page 190 GLP test set for the exact adjustment and validation of temperature on 873 Bio- diesel Rancimat. Consists of: 6.1111.020: Pt100 temperature sensor long 6.1253.000: Measuring insert for temperature sensor 6.2042.040: Clamp for temperature sensor 6.2109.030: Plug with resistor 6.2621.120: Hexagon key 1.5 mm 6.9988.733 Validation Documentation for 873 (English) ￭￭￭￭￭￭￭￭ 873 Biodiesel Rancimat...

  • Page 191: Index

    Log file ........45 Method ......61 Formulas ........69 Login Derivative Fuse For the first time ....21 Second derivative ..... 110 Replace ......18 Determination ......25 Delete ........ 90 Mains voltage ......6 Filter ........88 ￭￭￭￭￭￭￭￭ 873 Biodiesel Rancimat...
  • Page 192 Start ........24 Method parameters .... 60 Stability time ......65 Program Live graph ......110 Optimize ......41 Zooming ........31 Multiple graph ....109 Program number ...... 43 Recalculate ....... 118 Program start ......24 ￭￭￭￭￭￭￭￭ 873 Biodiesel Rancimat...

This manual is also suitable for:

2.873.00142.873.00151.873.00141.873.0015

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