Description
TW 7450 sample changer is a robust base unit intended for automated sample handling in titration laboratories and is supplied without titration head and sample rack. The unit includes a USB cable for direct connection to a PC together with a universal power supply rated 100-240 V, enabling straightforward installation in diverse laboratory environments. With a net weight of 66 kg the base provides a stable foundation for subsequent addition of titration heads and sample racks. This configuration supports efficient sequential processing of multiple samples, reducing manual handling and increasing analytical throughput. Manufactured by SI Analytics - a Xylem brand, the TW 7450 is engineered for integration into complete titration workstations used in industrial, pharmaceutical and environmental laboratories. Originating from the USA and delivered as a single piece, the base unit requires complementary components for full operation yet already offers reliable PC communication via its USB interface. It is well suited to high-volume routine analysis where automated sample presentation improves reproducibility and laboratory productivity.
This article is part of Burettes, in Volumetric glassware.
Key features
- Pack size: 1 pc
- Product type: Sample changer base unit
- Configuration: Without titration head and sample rack
- Includes: USB cable and power supply 100-240 V
- EAN: 4064664029544
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Questions about TW 7450, Sample changer TW 7450, basic TW 7450 unit without titration head and
What is this article?
TW 7450, Sample changer TW 7450, basic TW 7450 unit without titration head and is the article on this page. Luminix Health distributes SI Analytics - a Xylem brand for laboratory use. It sits in Titrators & electrochemistry systems, inside pH & electrochemistry, in Lab instruments.
A titrator adds a reagent and watches an electrode until an endpoint, then calculates the amount. It is a burette, a stirrer and a meter in one. The electrode and the reagent concentration still decide the result. A manual titration is the same chemistry without the automation.
A pH meter is a voltmeter on a glass electrode. The voltage tracks hydrogen-ion activity, and the electrode is converted to pH only after it is adjusted with buffers of known value. Conductivity measures how well a solution carries a current, which for dilute salts tracks concentration. Dissolved oxygen and titration are further electrodes on the same idea: a sensor, a standard, and a reading that is only as fresh as the calibration. Buffer values and chemical identity sit on PubChem. Accreditation of the calibration laboratory is the field of BELAC and EURAMET.
Which category should I open next?
The category is pH & electrochemistry. The sub-category is Titrators & electrochemistry systems. The catalogue is Lab instruments.
Shelves beside this one are pH electrodes & sensors, pH meters, Conductivity meters & cells, Dissolved oxygen & multiparameter meters and pH & electrochemistry accessories.
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Luminix Health distributes this article from the heart of Europe. Articles in stock ship within 2–5 business days. Standard delivery is free from €250 excl. VAT. Cold-chain goods and dangerous goods under ADR are never included in that free delivery. The terms are in the Shipping Policy. The full brand index is on shop by brand. Who we are is on about us.
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The seven catalogues are Labware, Lab chemicals, Lab instruments, Lab consumables, Chromatography equipment, Lab safety equipment and Life Science & Microbiology.

