• TW7200 sample changer | SI Analytics
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Rotary sample changer TW 7200

  • SKU: 285228000
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  • Description

    Sample changer TW 7200: Rotary sample changer for piston burettes and automatic titrators

    Depending on your application, the Sample Changer from SI Analytics can be customised with sample trays of varying size as well as a rinsing pump.

    Variants
    Art.-No. Name Description
    285228000 TW 7200 Basic unit TW 7200 with two integrated magnetic stirrer, connection cable for rod stirrer, USB connection cable TZ 3887, power supply 100- 240 V
    285228010 TW 7200-16 Basic unit with sample rack TZ 4016 for 16 samples, without beakers, incl. titration head TZ 1463 and power supply 100- 240 V.
    Suitable beakers are 150 ml TZ 1784, TZ 1788 or 250 ml TZ 1787, TZ 1780
    285228020 TW 7200-18 Basic unit with sample rack TZ 4018 for 18 samples, without beakers, incl. titration head TZ 1464 and power supply 100- 240 V.
    Suitable beakers are TZ 1765 (100 ml tall form without spout)
    285228030 TW 7200-24 Basic unit with sample rack TZ 4024 for 24 samples, without beakers, incl. titration head TZ 1469, power supply 100- 240 V.
    Suitable sample beakers/vessels are 50 ml TZ 1783 / 75 ml TZ 1786
    285228040 TW 7200-COD Basic unit with sample rack TZ 4040 for 24 CSB-samples according to DIN 38 409, without vessels, incl. Titration head TZ 1461, redox electrode Pt 5901, rod stirrer TZ 1846, titration tip TZ 1648, power supply 100- 240 V
    285228050 TW 7200-16-MP Basic unit with sample rack TZ 4016 for 16 samples, without beakers, incl. titration head TZ 1467, rinsing pump MP 25, power supply 100- 240 V.
    Suitable beakers are 150 ml TZ 1784, TZ 1788 or 250 ml TZ 1787, TZ 1780
    285228200 TW 7200-25 Basic unit with sample rack TZ 4025 for 25 samples, without beakers, incl. titration head TZ 1463 and power supply 100- 240 V.
    Suitable beakers are 150 ml TZ 1784, TZ 1788 or 250 ml TZ 1787, TZ 1780
    285228210 TW 7200-25-MP Basic unit with sample rack TZ 4025 for 25 samples, without beakers, incl. titration head TZ 1467, rinsing pump MP 25, power supply 100- 240 V.
    Suitable beakers are 150 ml TZ 1784, TZ 1788 or 250 ml TZ 1787, TZ 1780
    285228220 TW 7200-28 Basic unit with sample rack TZ 4028 for 28 samples, without beakers, incl. titration head TZ 1464 and power supply 100- 240 V.
    Suitable beakers are TZ 1765 (100 ml tall form without spout)
    285228230 TW 7200-38 Basic unit with sample rack TZ 4038 for 38 samples, without beakers, incl. titration head TZ 1469, power supply 100- 240 V.
    Suitable sample beakers/vessels are 50 ml TZ 1783 / 75 ml TZ 1786

    Highlights:


    • Titration heads and sample trays can be easily changed
    • Interchangeable Sample trays (12 - 48 positions)
    • Stirring from below is possible with the two built-in magnetic stirrers or from above with an optional rod stirrer (propeller stirrer)
    • The size of the sample tray is set in TitriSoft
    • Built-in horizontal titration head motor for positioning in another sample row
    • Connection of two pumps (diaphragm and peristaltic pumps) for rinsing of the electrodes and titration tips and for the suction of the sample
    • pH electrode calibration can be done on the sample changer

    The number of samples to be processed is growing constantly while at the same time the demands on reliability are increasing in accordance with GLP and ISO standards. The SI Analytics Sample Changer (TW 7200) helps you meet these increased requirements and free up highly qualified employees from routine work.

    The Sample Changer (TW 7200) is controlled by your PC (not supplied) and SI Analytics’ TitriSoft software (sold separately). The TitriSoft titration software is the optimum solution for your titration tasks. The software supports your daily work procedures during sample preparation, titration and evaluation of results.

     Get 3 year warranty

    Learn more about Titration:

     Download: Titration catalogue

     Blog: Which electrodes can still be used for titration?

     Blog: Which kind of pH electrode do I need for my acid-base titration application?

     Blog: Titration Theory and Practice - A practical guide

  • Specifications
    Sample changer 7200 (all variants)
    Interfaces 2 × RS-232-C, 1 x I/O, 2 x pumps, 1 x stirrer, 1 USB-A (Update only), 1 USB-Mini-B (PC), 1 x Ethernet
    Housing Material Housing made of two-component- coated ALU, steel sheet, and epoxy resin
    Sample tray: aluminum powder coated
    Dimensions Basic unit: 143 x 620 x 505 mm (W x H x D)
    Sample tray: 450 mm
    Weight 10.3 kg
    Examples with sample trays:
    Sample tray with 16 beaker glasses 150 ml: approx.2.6 kg
    Sample tray with 24 beaker glasses 50 ml: approx 2.4 kg
    Sample tray with 24 reaction vessels: approx.6.3 kg
    Ambient conditions Ambient temperature: + 10 ... + 40 °C for operation and storage Humidity according to EN 61 010, Part 1: max. relative humidity 80 % for temperatures up to 31 °C, linear decrease down to 50 % relative humidity at a temperature of 40 °C
    Power supply 115 - 240 V~, 50/60 Hz, 30 VA
    Magnetic stirrer 2 fixed magnetic stirrers
    Horizontal motor Horizontal motor for driving a second sample beaker row
    Sample trays From 12 - 48 positions
  • Video

    In diesem Video zeigen wir Ihnen Schritt für Schritt den Zusammenbau des Probenwechslers TW 7200, eines Titrierkopfes und eines Probentellers. Es enthält auch Details zum richtigen Montage von Titrierspitzen in den Titrierkopf, Einbau einer Elektrode und die Verwendung eines Stabrührers. Darüber hinaus enthält das Video auch die Anschlussoptionen für an Titratoren, Kolbenbüretten, PC und von Pumpen. Die Installation des Softwaretreibers für die USB-Schnittstelle und die Installation und Verwendung in TitriSoft wird gezeigt.

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