For piston burettes and automatic titrators

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.
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. Sample trays are available with 12, 16, 18, 24, and 48 positions for accommodating sample vessels with a diameter of 28-82mm.
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.

Key features:
• 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

Basic unit includes:
TW 7200 basic unit with two integrated magnetic stirrers, incl. ext. power supply 100-240 V with adapters for EU, US and UK, USB cable for direct PC connection and connection cable for rod stirrer.

For piston burettes and automatic titrators

The TW 7450 is a robust and sturdy sample changer particularly suitable for a large number of samples. The amount of samples in need of processing is growing constantly while at the same time the demands on reliability are increasing in accordance with GLP and ISO standards. The XYZ TW 7450 sample changer helps you meet these increased requirements and relieve qualified employees from routine work.
The control of the sample changer is carried out via the software TitriSoft. 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.

General Features:
• Very fast and quiet during operation
• Sample racks with 42, 48 and 72 positions and four different titration heads in different dimensions and holes can be used
• Titration heads and sample racks can be changed in just a few steps. Switch sample racks via software TitriSoft
• The usable sample vessels have a volume of 50 - 250 ml
• Connection of one pump for rinsing and suction are possible (diaphragm and peristaltic pump). Additional pumps can be connected via the optional I/O box
• The calibration of a pH electrode can also be done on the sample changer
• Stirring is only possible from above with a rod stirrer (propeller stirrer).The rod stirrer TZ 1847 is included in the scope of delivery of the TW 7450- and TL 7000-TW 7450 sets

Basic unit includes:
TW 7450 basic unit without titration head and sample rack. With USB cable for the connection to PC, low voltage cable for the connection of the rod stirrer and power supply 100-240 V.