The ADP440+ is a single wavelength, high accuracy Polarimeter. New optics featuring a ‘no maintenance’ yellow LED and interference filter together with a photodiode detector allows reading of samples of up to 3.0 OD.The instrument has both angular and sugar scales (ISS) and can be programmed with user scales as well as industry standard methods for displaying concentration and specific rotation directly. When used in the sugar industry, the ADP440+ may form the central hub of a purity system, providing the measurement of a Saccharimeter. In the ‘purity mode’ the instrument will calculate and display ‘sugar purity’ with Brix values being input automatically from an RFM refractometer or via the simple keypad. For rapid measurements, funnel and flow-through cells are available and require the use of specially suited slotted lids.Data handling is in accordance with GLP providing a record of measurement date, time, batch and operator numbers. Data handling may also be configured in accordance with the technical requirements of FDA regulation – 21 CFR Part 11 with users being identified and cleared by swiping an RFID tag across the instrument surface or by traditional keypad PIN entry.