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DL15, DL22, and DL28 Titrators, METTLER TOLEDO - Model DL28 - Each : The DL15 is an easy-to-use, compact end point titrator for acid/base analysis and pH measurements. The DL22 food and beverage analyzer is an end point and equivalence point titrator for applications such as acidity and Vitamin C of beverages, salt content, and free fatty acids, as well as the iodine value of oils and fats. The DL28 is an end point and equivalence point titrator. Analyses include acid/base, precipitation, redox, complexometric, photometric, pH, and ion selective measurements. All titrators feature end point titration with dynamic and incremental addition of titrant, predefined selectable parameters, equilibrium or time increment controlled measurement, predefined formulas for the most important calculations and statistics for up to 100 samples. The DL22 and DL28 titrators also feature a built-in database that allows the user to perform various setup options such as adding titrants and sensors, connecting the titrator to peripheral equipment, or programming soft keys for quick start of functions. All three models feature an intuitive interface. By pressing the "run" button twice, the user can begin the most recently used method. An additional three methods can be programmed as soft keys. Pictogram keys are included for the most commonly used manual functions, and a keypad simplifies alphanumeric entries and eliminates the need for an external keyboard. The titrators automatically calculate results with predefined units and can send a report to most PC printers. All titrators include a DG115 combination glass pH electrode with a ground-glass sleeve junction for direct pH measurement and acid/base titrations. The optional silver ring electrode is designed for argentometric titrations in aqueous medium. Signal Resolution: +-0.1 mV Voltage Range: +-2000 mV Buret Resolution: 1/10000 of buret volume Ordering Information: All titrators include a stirr