Hach TitraLab User Manual
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Hach TitraLab User Manual

Ph & acid content analyzer
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DOC022.53.90358
TitraLab pH & acid content analyzer
USER MANUAL
02/2013, Edition 2
© HACH Company, 2011, 2013. All rights reserved. Printed in Germany

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Summary of Contents for Hach TitraLab

  • Page 1 DOC022.53.90358 TitraLab pH & acid content analyzer USER MANUAL 02/2013, Edition 2 © HACH Company, 2011, 2013. All rights reserved. Printed in Germany...

  • Page 3: Table Of Contents

    Table of contents Section 1 Specifications ........................5 Section 2 General information....................... 7 2.1 Safety information..........................7 2.1.1 Warning labels ........................... 7 2.1.2 Chemical and biological safety ....................8 2.2 Overview of product..........................8 2.3 Front and back view..........................9 Section 3 Installation ..........................
  • Page 4 Table of contents 4.9 System ..............................27 4.9.1 Units Acidity..........................27 4.9.2 End Point Value........................27 4.9.3 Data Logger..........................28 4.9.3.1 Sample numbers ......................28 4.9.4 Data Output (printer/computer) ....................28 4.9.5 Calibration validity ........................28 4.9.6 Date/Hour ..........................28 4.9.7 Display contrast........................28 4.9.8 Language ..........................28 4.9.9 Theoretical Cal.........................28 Section 5 Maintenance..........................29 5.1 Maintenance schedule ........................29 5.2 Power off the instrument ........................29...

  • Page 5: Section 1 Specifications

    Section 1 Specifications These are subject to change without notice! Performance specifications Acid–base titration Measuring principle pH: potentiometric determination Determination of pH and acid content of tartaric acid and sulfuric LLV2301.97.1002 acid in wine LLV2302.97.1002 Determination of pH and acid content in dairy products Application area Determination of pH and acid content of citric acid in tomato sauce LLV2304.97.1002...
  • Page 6 Specifications Dimensions of measuring instrument and environmental conditions Enclosure material ABS and enameled steel Weight approximately 4 kg Dimensions 130 x 160 x 300 mm Working temperature +15 to +40 °C (+60 to +104 °F) Storage temperature –10 to +50 °C (+14 to +122 °F) Air humidity <80% relative humidity, non-condensing Warranty...

  • Page 7: Section 2 General Information

    Section 2 General information Safety information Please read the entire user manual carefully before the equipment is unpacked, set up or put into operation. Pay attention to all danger and warning statements. Failure to do so could result in serious injury to the operator or damage to the equipment. To make sure that the protection provided by this instrument is not impaired, do not use or install this instrument in any manner other than that specified in these operating instructions.

  • Page 8: Chemical And Biological Safety

    The acid content of a foodstuff has a direct affect on the color of the product and the sensory evaluation of it, including the way it is balanced against sugar and other ingredients. The TitraLab pH & acid content system is available in four different versions for use with various foodstuffs: •...

  • Page 9: Front And Back View

    General information Front and back view Figure 1 Front view TitraLab pH & acid content system Titration stand with magnetic stirrer Keypad Titration cell Display Syringe cover Titrant Burette...
  • Page 10 General information Figure 2 Back view Connector for mouse Temperature connector of the electrode Connector for printer or computer Connector for power supply Electrode connector Connector for magnetic stirrer...

  • Page 11: Section 3 Installation

    Section 3 Installation WA R N I N G Risk of injury to eyes, skin and respiratory When working with chemicals and/or solvents, always observe the relevant accident prevention regulations and wear appropriate personal protective clothing for eye, face, hand, body and/or respiratory protection.
  • Page 12 Installation Figure 3 Scope of delivery TitraLab pH & acid content system O-ring to secure tube Tube with bottle closure, DIN 45 thread 10 Mouse (versions LLV2301.97.1002, LLV2302.97.1002 and LLV2306.97.1002 only) Tube to attach to electrode Titration stand holder including magnetic stirrer...

  • Page 13: Operating Environment

    0.1 M or 0.5 M. The burette comprises the syringe, stepper motor and valve. The stepper motor and valve are already installed in the TitraLab; the syringe has to be installed by the user. WA R N I N G Risk of injury to pinch points and cuts Make sure that the titrator is never used/operated without the syringe cover.

  • Page 14: Installation Of The Titration Stand

    Installation 3. Point the syringe tip upward, place the syringe into the bracket such that the attachment sleeve is above the bracket. 4. With the narrow side facing down, carefully press the attachment sleeve into the bracket. Hold the attachment sleeve in the bracket and screw the syringe onto the valve from below.

  • Page 15: Electrical Connection Of The Magnetic Stirrer

    3.4.2.1 Electrical connection of the magnetic stirrer 1. Connect the cable of the magnetic stirrer to the port on the back of the STIRRER TitraLab. The power is supplied via the TitraLab.

  • Page 16: Installation Of Tubes

    To prevent twisting of the tubes, you should always connect flange tube connections before those with grommets. The system is delivered with two tubes; these are supplied pre-installed on the TitraLab and only need to be connected to the relevant titrant bottle and to the electrode.

  • Page 17: Connection Of Feed Tube

    The system is delivered with a tube with bottle closure (DIN 45 thread). This feed tube is supplied pre-installed on the TitraLab and only needs to be connected to the titrant bottle. 1. Connect the tube from the IN socket of the burette valve to the titrant bottle (NaOH).

  • Page 18: Connection Of The Tube To The Electrode

    Installation 3.4.4.1 Connection of the tube to the electrode 1. Connect the tube on the OUT socket of the burette valve. 2. Place the electrode in the sensor holder. 3. Push the free end of the tube into the tube guide of the sensor holder until the end of the tube is flush with the tip of the electrode.

  • Page 19: Keypad

    Installation Figure 10 Plug connector attachment Slide the plug connector into the power supply Click the plug connector into place Note: To change the plug connector, press in the catch and slide the plug connector upward. Keypad Navigation key UP •...

  • Page 20: Optical Mouse

    OK can also be performed with an optical mouse. 1. Connect the mouse cable to the port labeled on the back of the TitraLab. MOUSE The power is supplied via the TitraLab. Reagents • Titrant reagent: Sodium Hydroxide NaOH 0.5 M (versions LLV2301.97.1002 and LLV2306.97.1002), 0.1 M (versions LLV2302.97.1002 and LLV2304.97.1002)

  • Page 21: Section 4 Operation

    1. Connect the input connector of the power supply to the port on the back of POWER IN the TitraLab. 2. Connect the power supply to a power socket. 3. Press below the display to switch on the instrument.

  • Page 22: Change The Language Setting

    Operation 4.2.1.1 Change the language setting The instrument functions in the selected language until the option is changed. 1. Turn the instrument on. 2. Select SYSTEM > LANGUAGE. 3. Select the required language. 4. Press to confirm the selection. 4.2.1.2 Change the data output setting The instrument functions in the selected data output until the option is changed.
  • Page 23 Operation MAIN MENU MANUAL ACTIVATION Select which element is to be controlled manually; refer to section 4.8, page Burette Manual control of burette. Return Empties the burette into the titrant bottle (navigation key LEFT). Empty Empties the burette into the titration cell (navigation key UP). Fill Fills the burette with titrant (navigation key DOWN).

  • Page 24: Ph And Acid Content

    ANALYZE PH + ACIDITY "INSERT SAMPLE: 1" 5. Select START ANALYSIS The following steps are carried out automatically by TitraLab: • Measurement of pH • Subsequent commencement of titration 6. The result is shown on the display and, depending on the setting, sent to a printer or computer.

  • Page 25: Ph Calibration

    Operation pH calibration 1. Place a magnetic stirring bar and 10 mL of the pH 7.00 calibration solution in a titration cell. 2. Attach the titration cell to the magnetic stirrer. 3. Lower the electrode into the titration cell. Hinweis: Make sure that the electrode cannot be damaged by the stirring bar or come into contact with the bottom of the titration cell.

  • Page 26: Ph Calibration With A User Define Control Solution

    Operation pH calibration with a user define control solution A user define pH calibration solution (for example: pH 3.56 for wine) can be entered as a third calibration point. A two-point calibration must be performed first (refer to section 4.6). After this, proceed as follows: 1.

  • Page 27: System

    Operation System This function can be used to adapt the titrator to specific requirements. 4.9.1 Units Acidity The unit and factor for calculation can be adjusted individually. For example, in wine analysis, the result can be given in g/L for sulfuric acid, tartaric acid or overall acid. The factor is obtained in the following way: Result = [C * MW * 0.5] / V...

  • Page 28: Data Logger

    Operation 4.9.3 Data Logger This section describes the functions of the data log. • Up to 55 results are stored. • The results can be displayed, printed or sent to a computer. • When the data log is full, the oldest result is overwritten automatically. 1.

  • Page 29: Section 5 Maintenance

    Section 5 Maintenance WA R N I N G Risk of injury Before maintenance or repair work is conducted, thoroughly rinse the instrument with deionized water and make sure that there are no residual chemicals in the tubes and pumps. Only use genuine replacement parts and accessories.
  • Page 30 Maintenance...

  • Page 31: Section 6 Troubleshooting

    Section 6 Troubleshooting Error messages Error displayed Cause Resolution The maximum volume is reached Empty the titration cell and restart the Maximum volume reached. before the titration is completed. The titration. titration is cancelled automatically. No equivalence points found during Equivalence points not found.
  • Page 32 Troubleshooting...

  • Page 33: Section 7 Replacement Parts And Accessories

    Replacement parts Description Cat. No TitraLab pH & acid content system for wine, with 1x 10 mL syringe. Accessories included: LLV2301.97.1002 electrode holder with magnetic stirrer, electrode, 10 titration cells and stirring bars TitraLab pH & acid content system for milk, with 1x 10 mL syringe. Accessories included: LLV2302.97.1002...
  • Page 34 Replacement parts and accessories...

  • Page 35: Section 8 Contact Information

    HACH Company Repair Service in the Repair Service in Canada: Repair Service in World Headquarters United States: Latin America, the Hach Sales & Service Caribbean, the Far East, P.O. Box 389 HACH Company Canada Ltd. Indian Subcontinent, Africa, Loveland, Colorado...
  • Page 36 Contact information HACH LANGE D.O.O. ΗΑCH LANGE E.Π.Ε. HACH LANGE D.O.O. HACH LANGE MAROC SARLAU Fajfarjeva 15 Αυλίδος 27 Ivana Severa bb SI-1230 Domžale GR-115 27 Αθήνα HR-42 000 Varaždin Villa 14 – Rue 2 Casa Tel. +386 (0)59 051 000 Τηλ.

  • Page 37: Index

    Index Burette ..............13 Magnetic stirrer ............15 Maintenance schedule ..........29 Data logger ..............5 Product contents ............11 Error messages ............31 Safety information ............7 Specifications ............. 5 Flange tube connections .......... 16 Titration stand ............14 Keypad ..............
  • Page 38 Index...

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