Metrohm 760 Instructions For Use Manual
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Metrohm 760 Instructions For Use Manual

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760 Sample Changer
760 Sample Changer
Instructions for Use
8.760.1013

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Summary of Contents for Metrohm 760

  • Page 1 760 Sample Changer 760 Sample Changer Instructions for Use 8.760.1013...
  • Page 2 CH-9101 Herisau/Switzerland Phone +41 71 353 85 85 +41 71 353 89 01 E-Mail info@metrohm.ch Internet www.metrohm.ch 760 Sample Changer Instructions for Use 8.760.1013 2000.07 up/dm...

  • Page 3: Table Of Contents

    Table of Contents Page ..............1 VERVIEW 1.1 Side View ..............1 1.2 Rear View ..............2 1.3 Sensors ..............3 ............4 NSTALLATION 2.1 Setting up the Instrument ........... 4 2.2 Safety Considerations ..........6 2.3 Arranging the Accessories ......... 7 2.3.1 Connecting the Keyboard ........

  • Page 4: Overview

    Stirrer rail Connectors Plug cover Safety note: Never operate the 760 Sample Changer without splash protection and plug cover being mounted. The plug cover prevents any con- tamination of the connectors, caused by spilled solvents or chemi- cals. 760 Sample Changer, Overview...

  • Page 5: Rear View

    1.2 Rear View The Connectors (side view): Stirrer sockets Remote socket The remote socket serves the connection of Metrohm- or other measuring instruments that communicate via a parallel cable (see p. 11 1.2 Rear View Line frame Mounting srew for splash protection...

  • Page 6: Sensors

    Keyboard Made by Metrohm Herisau Switzerland Keyboard connector 1.3 Sensors Beaker test Each tower of the 760 Sample Changer is equipped with a beaker indicator to detect the presence of a beaker in front Splash protection of the tower. This infrared...

  • Page 7: Installation

    Instructions for Use, page 34). In case of damage see "Warranty", page 31. Setting up The 760 Sample Changer is a rugged instrument and may be used in rough environments such as laboratories and manufacturing plants. It must not be exposed to a corrosive atmosphere. If the sample changer is operated in a rough environment, regular main- tenance is strongly recommended.
  • Page 8 0 Power Supply • Disconnect line cable Unplug the 760 Sample Changer. • Remove fuse holder Using a screw driver, loosen the fuse holder and pull it out. • Checking and replacing fuse Carefully remove the built-in fuse and check its specifications.

  • Page 9: Safety Considerations

    The plug cover prevents any con- tamination of the connectors, caused by spilled solvents or chemi- cals. If failure or malfunctioning occurs during operation of the 760 Sam- ple Changer, the Metrohm Service Department should be consulted.

  • Page 10: Arranging The Accessories

    1 is directed to tower 1. Before a rack is used for the first time, the lift positions have to be set (s. Chapter. 3.4). 760 Sample Changer, Installation...

  • Page 11: Mounting And Setting Up The Titration Heads

    Micro Titration head, see accessory list, page 34. Note on Macro Titration head The arrow sign marks the slightly sloped SGJ14 boring, which enables to center a rod stirrer or an electrode in a narrow titration vessel. 760 Sample Changer, Installation...
  • Page 12 All tubing and cables connected to the titration head should be guided through the line frame to ensure full motility for the lift. Note that there is enough line reserve for a complete down movement of the lift. 760 Sample Changer, Installation...

  • Page 13: Use Of The Sample Beaker For Karl Fischer Titration

    This step can be facilitated by binding together all three devices approx. 2 cm above the bottom of electrode and burette tips using an O-ring E.301.0022. Thus, the impulse is focused on a small area of the Al foil. 760 Sample Changer, Installation...

  • Page 14: Remote Connections

    760 Sample Changer Relay Box 731 Pumps, e.g. 772 Connecting peripheral instruments to the 760 Sample Changer re- quires Metrohm cables. Otherwise a safe data transmission may not be guaranteed. The required cables are listed in the following table. Details about the control commands are given in the Instructions for Use of the corresponding instrument.

  • Page 15: Typical Combinations Of Instruments

    2.4 Remote Connections 14 lines (Output 0–13) are available for the emission of signals. For receiving signals 8 lines are provided (Input 0–7). The assignment of these lines is fixed for the 760 Sample Changer. Pin assignment of the Remote socket: Inputs...
  • Page 16 2.4 Remote Connections 760 Sample Changer — Titrino — Dosimat 765/776 Titrino Cable 6.2141.040 Remote control commands: Output 0: starts Titrino *************1 Output 6: starts Dosimat *******1****** Input 3: awaits end of titration (EOD pulse) ****1*** Pump Control via Remote Lines Using methods 3 and 4, external pumps can be controlled via the remote interface.

  • Page 17: Racks

    The rack of- fers space for various numbers of samples depending on the diameter of the beakers. Metrohm delivers the following predefined types of standard racks: Type...

  • Page 18: Introduction

    3.1 Important Features 3 Introduction 3.1 Important Features Overview The 760 Sample Changer provides most of the important features of the 730 Sample Changer: • Interchangeable Metrohm standard sample racks • Working, rinsing and shift heights can be specifically defined •...

  • Page 19: Key Functions

    3.2 Key Functions 3.2 Key Functions The 760 Sample Changer operates in two different modes where the keys provide different functions: The Basic Mode starts when the instrument is turned on. The ready-to-operate status is indicated by the green LED.

  • Page 20: Memory Initialization

    Additionally, the stirrer speed can be defined. If the 760 Sample Changer is used for the first time, the lift posi- tions have to be adapted to the selected rack type. This applies also if a new rack type is inserted for the first time.
  • Page 21 4∗ <START> accepts the setting. The shift position is stored specifically for the type of rack inserted. The green LED START blinks five times. The stirrer speed can now be set. green 5∗ 760 Sample Changer, Introduction...
  • Page 22 The individual steps of the configuration procedure: 1∗ Method selection 2∗ Setting the working position 3∗ Setting the rinsing position 4∗ Setting the shift position 5∗ Setting the stirrer speed 760 Sample Changer, Introduction...

  • Page 23: The Methods

    Dosimat. The Sample Changer will start the dis- tribution via a remote line. The following titration instruments can be used with the 760 Sam- ple Changer: all of the Titrino models (701, 702, 716, 718, 719, 720, 736, 751, 758, 784, and 785) and the Titroprocessors.
  • Page 24 10. get special beaker 11. run lift to work position 12. switch on the external pump 13. await readiness of the pump 14. run lift to shift position 760 Sample Changer, Introduction...
  • Page 25 10 seconds start titrator await end of determination switch off stirrer run lift to rinse position 10. switch on the external pump 11. await readiness of the pump 12. run lift to shift position 760 Sample Changer, Introduction...

  • Page 26: Appendix

    No sample rack is in position or no rack data can be 7* rack data missing found for the sample rack that is in place. The rack code read by the changer could not be 8* invalid rack code found in the internal position tables. 760 Sample Changer, Appendix...
  • Page 27 Load or resistance too large to carry out the chosen 12* changer overload action. The changer cannot execute the command chosen 14* changer not ready because it is busy carrying out another action. 760 Sample Changer, Appendix...

  • Page 28: Method Listings

    4.2 Method Listings 4.2 Method Listings All four methods of the 760 Sample Changer are briefly described in chapter 3.5 on pages 20 to 22. The present chapter contains the exact program listings of these meth- ods together with more detailed explanations.
  • Page 29 1 ¬ cannot be selected independently stirrer 2 >dosing unit def. ------ settings for dosing devices ------------------------ >manual stop ------ action after manual stop ------------------------- CTL Rmt: STOP device1 ¬ stop device 1 CTL RS232: ------------ 760 Sample Changer, Appendix...
  • Page 30 1 ¬ cannot be selected independently stirrer 2 >dosing unit def. ------ settings for dosing devices ------------------------ >manual stop ------ action after manual stop ------------------------- CTL Rmt: STOP device1 ¬ stop device 1 CTL RS232: ------------ 760 Sample Changer, Appendix...
  • Page 31 1 ¬ cannot be selected independently stirrer 2 >dosing unit def. ------ settings for dosing devices ------------------------ >manual stop ------ action after manual stop ------------------------- CTL Rmt: STOP device1 ¬ stop device 1 CTL RS232: ------------ 760 Sample Changer, Appendix...

  • Page 32: Technical Specifications

    Constructed and tested according to IEC 1010 / EN 61010 / UL 3101-1, Safety Class III Degree of protection IP 22 The instruction manual contains information and warnings which the user should follow to guarantee the safe operation of the in- strument. 760 Sample Changer, Appendix...

  • Page 33: Servicing And Maintenance

    IEC 801-4 are adhered to. 4.4 Servicing and Maintenance 4.4.1 Servicing The maintenance of the 760 Sample Changer should include a yearly service check carried out by a specialist from Metrohm. If caustic or corrosive chemicals are frequently used, shorter time in- tervals between service checks can be necessary.

  • Page 34: Warranty And Conformity

    Metrohm from any liability to pay compensation. If any instruments and parts have to be returned, the original pack- aging should be used if at all possible. This applies above all to in- struments, electrodes, burette cylinders and PTFE pistons.

  • Page 35: Certificate Of Conformity

    The features of the system software are documented in the instruction manual. Metrohm Ltd. is holder of the SQS certificate of the quality system ISO 9001 for quality assurance in design/development, production, installation and ser- vicing.
  • Page 36 Ionenanalytik • Analyse des ions • Ion analysis • Análisis iónico 760 Sample Changer EU Declaration of Conformity The Metrohm AG company, Herisau, Switzerland hereby certifies that the instrument: 760 Sample Changer meets the requirements of EU Directives 89/336/EWG and 73/23/EWG.

  • Page 37: Accessories

    6.1815.010 Keyboard for 760 6.2142.100 Guiding sleeve 6.2709.070 Splash protection 6.2751.010 Plug cover 6.2752.010 Instructions for use 8.760.1013 760 Sample Changer KFT 2.760.0020 includes the following accessories: Number of pieces Magnetic stirrer 1.741.0010 Double Pt electrode 6.0340.000 Sample beaker 6.1432.210 Titration head for FKT 6.1458.030...
  • Page 38 Micro titration head (4 x M10) for rack 6.2041.340 6.1458.020 Sample Racks and Beakers Sample Rack 12 x 250 mL M12-0 6.2041.310 Metrohm sample beaker glass 250 mL 6.1432.320 Metrohm sample beaker PP 200 mL 6.1453.220 Metrohm sample beaker PP 250 mL 6.1453.250...
  • Page 39 Exchange unit with ceramics stopcock 1 mL 6.3013.113 5 mL 6.3013.153 10 mL 6.3013.213 20 mL 6.3013.223 50 mL 6.3013.253 Exchange unit with PTFE stopcock 1 mL 6.3014.113 5 mL 6.3014.153 10 mL 6.3014.213 20 mL 6.3014.223 50 mL 6.3014.253 760 Sample Changer, Appendix...

  • Page 40: Index

    Input ......11, 29 Rack......7, 14 Warranty and conformity..31 Installation......4 Rack code......3 Weight ......29 Instrument combinations ... 12 Rear view......2 Working position ....18 Instrument opening ..... 6 Remote commands..12, 13 Introduction ...... 15 760 Sample Changer, Index...

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