CH-9101 Herisau/Switzerland Tel. +41 71 353 85 85 Fax +41 71 353 89 01 E-Mail sales@metrohm.ch Internet http://www.metrohm.ch 717 Sample Changer Instructions for use 8.717.1003 98.
Table of Contents Page 1 OVERVIEW ___________________________________________ 1 1.1 1.2 1.3 1.4 Side View _______________________________________ Rear View _______________________________________ Sensors _________________________________________ The Sample Changer Models _______________________ 1 2 3 4 2 INSTALLATION ________________________________________ 5 2.1 Setting up the Instrument __________________________ 5 2.2 Safety Considerations _____________________________ 6 2.
1.1 Side View 1 Overview Guide chain 1.1 Side View Splash protection Lift Distribution head Pump Rack Valve Tower Stirrer rail Connectors Plug cover Safety note: Do not operate the 717 Sample Changer without splash protection and plug cover being mounted. The plug cover prevents any contamination of the connectors, caused by spilled solvents or chemicals.
1.2 Rear View The Connectors (side view): Remote socket Stirrer sockets 1 2 3 Remote Control 4 The remote socket serves the connection of Metrohm- or other measuring instruments that communicate via a serial cable. 1.2 Rear View Guide chain Distribution head Mounting screw for splash protection Pump 1 Valves Pump 2 Plug cover Type 1.717.
1.3 Sensors The Connectors (rear): Manufacturing number Type 1.717._ 0120/02 187 External Bus Address Made by Metrohm Herisau Switzerland External Bus socket External Bus address selector 1.3 Sensors Beaker test Each tower of the 717 Sample Changer is equipped with a beaker indicator to detect the presence of a beaker in front of the particular tower. This infrared sensor detects many different materials, if any object is placed in correct position.
1.4 The Sample Changer Models 1.4 The Sample Changer Models Model 2.717.0010 1 tower, 1 pump 2 stirrer connections Tower 1 Tower 2 Model 2.717.0110 2 towers, 2 pumps 4 stirrer connections 4 Model 2.717.0020 1 tower, 2 pumps 2 stirrer connections Tower 1 Tower 2 Model 2.717.0120 2 towers, 4 pumps 4 stirrer connections Model 2.717.0030 1 tower, no pumps 2 stirrer connections Tower 1 Tower 2 Model 2.717.
2.1 Setting up the Instrument 2 Installation 2.1 Setting up the Instrument Packaging The 717 Sample Changer is supplied with the accessories in separate special packages designed to ensure maximum protection. These contain shock-absorbing foam linings. As only these special packages guarantee damage-free transport of the instrument, it is essential you store them in a safe place.
2.2 Safety Considerations 2.2 Safety Considerations If failure or malfunctioning occurs during operation of the 717 Sample Changer, the Metrohm Service Department should be consulted. If opening the instrument is unavoidable, the following safety precautions are to be strictly adhered to: Before opening the instrument disconnect it from all electrical sources. Make sure that all main cables have been disconnected. Only in exceptional cases should the instrument be opened while it is switched on.
2.3 Arranging the Accessories 2.3 Arranging the Accessories 2.3.1 Setting up the Rinsing Equipment To mount the PTFE tubings to the pump inlets or outlets enlarge it carefully using a screwdriver, a pen or another appropriate tool. A piece of sand paper facilitates grasping of the tubing. The arrangement of the tubing depends on the rinsing equipment. Rotating nozzle Using a changer model with one pump per tower only, the rotating nozzle (6.2740.000) is recommended for rinsing.
2.3 Arranging the Accessories The pump heads of the diaphragm pump, the fittings and the coupling rings are made of PVDF. PVDF is resistant to many chemicals. Acetone, acetanhydride or dimethylformamide (DMF) should not be used. The diaphragm, and the inner parts of the valves consist of PTFE and are resistant to most chemicals. If your samples contain solids (e.g.
2.3 Arranging the Accessories 2.3.4 Sample Racks Magnet holder Magnetic sensor 717 Sample Changer, Installation After placing the rack on the turntable, the sample changer must be initialized to enable the safe reading of the magnetic rack code. This can only be done if rack position 1 is directed to tower 1.
2.3 Arranging the Accessories 2.3.5 Mounting and Setting up the Titration Heads Macro Titration head 6.1458.010 Micro Titration head 6.1458.020 Mounting screws Aspiration tip M8 (also for Macro Titration head ) 6.1543.170 Electrode Rotating nozzle 6.2740.000 Burette tip Rod stirrer 2.722.0020 M6 Spray nozzles (also for Macro Titration head) 6.2740.020 SGJ14 sleeve 6.1236.020 M8 Thread stopper 4.658.0180 SGJ9 Guide sleeve 6.2709.070 Stirrer propeller 6.1909.
2.4 Remote Connections 2.4 Remote Connections 665 725 Dosimat 759 Swing Head 711 Liquino Remote Valves Pumps, e.g. 772 717 Sample Changer 731 Relay Box Connecting peripheral instruments to the 717 Sample Changer requires Metrohm cables. Otherwise a safe data transmission may not be guaranteed. All instruments have to be switched off, before they are connected. Otherwise the instruments could suffer from damage. 14 lines (Output 0–13) are available for the emission of signals.
2.4 Remote Connections 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. Instrument 665/725 Dosimat 711 Liquino 731 Relay Box Cable 6.2139.000 6.2141.020 6.2125.100 717 Sample Changer with 759 Swing Head In order to increase the number of samples, the 759 Swing Head with a titration head (2.759.0020) or a transfer head (2.759.0010) can be installed in place of a normal titration head.
2.4 Remote Connections 2.4.1 External Bus Connections Via the "External Bus" the 717 Sample Changer is operated by a control instrument, e.g. the 726 Titroprocessor. Four dosing instruments (Dosimat 685 or Dosino 700) may be connected to the "External Bus" interface using a 729 Dosimat Interface. Up to two Dosimat Interfaces may be connected in line (daisy chaining) and be assembled with dosing instruments. Each interface must be addressed correctly.
3 Sample Racks 3 Sample Racks A sample rack is a sort of turntable for the positioning of beakers which are to be placed on the 717 Sample Changer. Because for titration, various sizes of beakers are common or required, many kinds of racks can be used and are easily interchangeable. The rack offers space for various numbers of samples depending on the diameter of the beakers.
3 Sample Racks The standard racks provided by Metrohm are already equipped with a predefined magnetic code for every rack type. If several racks of the same type are used, the magnet rods can be arranged differently so that a unique identification of a sample rack is possible, if this is desired. Format of a magnetic code (example): 000001 000101 i.e. only one magnet is inserted, bit 0 i.e. two magnets are inserted, bit 0 and 2 63 different combinations are possible.
4.1 Prerequisites 4 Swing Head To ensure that the individual vessels are approached with precision even when using multiple-row sample racks, a 759 Swing Head can be installed instead of the normal titration head. The swing head is fitted with either a titration head (2.759.0020) or a transfer head (2.759.0010) for pipetting the sample from the sample vessel into a bigger titrating vessel. 4.
4.2 Installing the Swing Head Disengage the guide chain Use a screwdriver to open the guide chain in-between two links to facilitate the process of disassembling the titration head and installing the swing head. Connect the swing head to Tower 1 Loosen screws A on both sides and remove the titration head together with the mounting plate and the lowest link. Use an angled C screwdriver for recessedB head screws for 2-tower sample changers.
4.3 Accessories for the Titration Head The 759 swing head can now be connected to the remote socket of the sample changer (see page 12). The configuration of the sample changer is carried out in the control instrument. 4.3 Accessories for the Titration Head The titration head can be fitted with a 722 Propeller Rod Stirrer, up to two Micro electrodes, three burette tips and three spray nozzles. 722 Rod stirrer 2.722.0020 Micro electrode Burette tips M6 spray nozzles 6.2740.020 M6 spray nozzle 6.2740.
4.3 Accessories for the Titration Head Aligning the titration/transfer head The swing head executes a shift movement as it approaches the sample vessels. It can adopt any of four fixed positions, depending on which row is targeted, or whether the lift is in the shift position. The titration or transfer head should be aligned in order to guarantee that the individual positions are approached with precision. Place the sample rack that you wish to use on the sample changer and insert a few sample vessels.
5.1 Technical Specifications 5 Appendix 5.1 Technical Specifications 5.1.1 717 Sample Changer 20 Dimensions Height: 0.72 m, Width: 0.28 m, Depth: 0.48 m Weight 15.5 kg (without accessories, 2-tower model) 10.0 kg (without accessories, 1-tower model) Material Sample Changer case: Lift path 235 mm Lift Load: approx.
5.1 Technical Specifications Remote Interface Programmable parallel interface for controlling external instruments +5V Input: Output: tp tp tp >20 ms tp >200 ms VCEO = 40 V IC = 20 mA +5 V: Temperatures active = low inactive = high active = low inactive = high Maximum charge = 20 mA Nominal functional range 5 – 40 °C Transport and storage: –40 – +70°C Distribution voltage Connection to the External Bus of a Metrohm control device, e.g. 726 Titroprocessor, ...
5.1 Technical Specifications 5.1.2 759 Swing Head Dimensions Height: 0.14 m, Width: 0.10 m, Depth: 0.09 m Weight 0.63 kg Material Swing Head case: Titration Head: Polybuteneterephthalate (PBTP) with metallic fiber Polypropylene Rotation 4 fix positions Temperatures Nominal functional range 5 – 40 °C Transport and storage –40 – +70 °C Distribution voltage 5 V DC, drawing of current 500 mA connection to the remote socket of the Metrohm Sample Changers, e.g. model 717, 730, 760, ...
5.2 Servicing and Maintenance 5.2 Servicing and Maintenance 5.2.1 Servicing The maintenance of the 717 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 intervals between service checks can be necessary. The Metrohm Service Department can offer technical advice regarding servicing and maintenance of all Metrohm instruments at any time. 5.2.
5.3 Warranty and Conformity 5.3 Warranty and Conformity 5.3.1 Warranty The warranty on our products is limited to defects that are traceable to material, construction or manufacturing error which occur within 12 months from the day of delivery. In this case, the defects will be rectified in our workshops free of charge. Transport costs are to be paid by the customer. For day and night operation, the warranty is limited to 6 months.
5.3 Warranty and Conformity 5.3.2 Certificate of Conformity and System Validation for the 717 Sample Changer This is to certify the conformity to the standard specifications for electrical appliances and accessories, as well as to the standard specifications for security and to system validation issued by the manufacturing company. Name of commodity: Name of manufacturer: Principal technical information: 717 Sample Changer Metrohm Ltd.
5.3 Warranty and Conformity Ionenanalytik • Analyse des ions • Ion analysis • Análisis iónico 717 Sample Changer EU Declaration of Conformity The Metrohm AG company, Herisau, Switzerland hereby certifies that the instrument: 717 Sample Changer meets the requirements of EU Directives 89/336/EWG and 73/23/EWG.
5.3 Warranty and Conformity 5.3.3 Certificate of Conformity and System Validation for the 759 Swing Head This is to certify the conformity to the standard specifications for electrical appliances and accessories, as well as to the standard specifications for security and to system validation issued by the manufacturing company. Name of commodity: Name of manufacturer: Principal technical information: 759 Swing Head Metrohm Ltd.
5.3 Warranty and Conformity Ionenanalytik • Analyse des ions • Ion analysis • Análisis iónico 759 Swing Head EU Declaration of Conformity The Metrohm AG company, Herisau, Switzerland hereby certifies that the instrument: 759 Swing Head meets the requirements of EU Directives 89/336/EWG and 73/23/EWG.
5.4 Accessories 5.4 Accessories 717 Sample Changer, Appendix Sample Changer with 1 Tower and 1 Pump includes the following accessories: Pieces SGJ14 sleeve 2 SGJ14 plastic stopper 5 SGJ9 stopper 3 M6 thread stopper PE canister 10 liter FEP tubing connector M6 80 PTFE tubing 4 meter 4/6 Guiding shaft Connector for canister Fixing clip 10x Bushing 3 Rotating nozzle Splash protection Plug cover External Bus cable DB 37-pol Instructions for Use for 717 Sample Changer 2.717.
5.4 Accessories 30 Sample Changer with 1 Tower without Pumps includes the following accessories: Pieces SGJ14 sleeve 2 FEP tubing connector M6 80 Bushing 3 Splash protection Plug cover External Bus cable DB 37-pol Instructions for Use for 717 Sample Changer 2.717.
5.4 Accessories Clip for burette tip Fixing clip 10x Bushing M6 Spray nozzle Splash protection Plug cover External Bus cable DB 37-pol Instructions for Use for 717 Sample Changer 2 2 6 6 Sample Changer with 2 Towers without Pumps includes the following accessories: Pieces SGJ14 sleeve 4 FEP tubing connector M6 80 2 Bushing 6 Splash protection Plug cover External Bus cable DB 37-pol Instructions for Use for 717 Sample Changer 6.2042.020 6.2053.000 6.2709.070 6.2740.020 6.2751.020 6.2752.010 6.2135.000 8.
5.4 Accessories 759 Swing Head with Titration Head includes the following accessories: 2.759.0020 Pieces Titration head Stirrer propeller PP (104 mm) for 75 mL vessels Clip for burette tip 2 Holding plate for the swing head Splash protection for swing head 6.1462.020 6.1909.030 6.2042.030 6.2058.000 6.2751.030 Sample racks and beakers Rack 12x 250 mL M12-0 *) 6.2041.310 Metrohm glass beaker 250 mL 6.1432.320 Metrohm PP beaker 200 mL 6.1453.220 Metrohm PP beaker 250 mL 6.1453.
5.4 Accessories Electrodes for Sample Changer It is recommended to use Longlife-Electrodes (LL) or titrodes (without polished glass surface) with the SGJ sleeve SGJ14/12mm 6.1236.040 made of silicon caout-chouc for titrations with the Macro Titration head. The following special micro electrodes can be used with the Micro Titration head and the 759 Swing Head for direct titration. Comb.
5.5 Index 5.5 Index A I S Accessories ....................... 7, 29 Address ............................. 3, 13 Aligning .................................. 19 Appendix ................................ 20 Aspiration tip .................... 10, 18 Attendance ............................ 23 Infrared sensor ........................ 3 Initialize ................................... 3 Input ...................................... 11 Installation ......................... 5, 16 Interference immunity ......
