The U-Visc is the next generation of completely automatic viscometry systems compliant with ASTM D445.
The system combines several unique features, making it the instrument of choice in many applications, ranging from QC to R&D to used oil analysis. While offering full compliance with ASTM D445/446, the specially designed viscometer tubes cover a 100-fold range, e.g., from 1 to 100 mm2/s. The tubes are based on the well-known and proven Ubbelohde design, but only require 8-16 ml of sample and approximately 12-15 ml of solvent for cleaning. Available with single or dual solvent cleaning, this tailor-made instrument measures kinematic viscosity in Newtonian fluids like lubricants, fuels, or dissolved plastics between 0.15 and 25,000 mm2/s at 40°C.
Designed to be versatile and flexible, yet easy to use. Different models are available range from 1 bath with 1 or 2 viscometer tubes based on the well-known Ubbelohde design, up to 2 baths with 1 or 2 viscometer tubes per bath, where each bath works independently. These options can be tailored to your preferences. Sophisticated temperature control ensures that measurements are carried out well within limits specified by ASTM D445. Each bath features a 32-position sampling tray (16 samples per tube), allowing completely unattended operation. Depending on the viscosity of the sample, the instrument can process up to 40 measurements per hour, satisfying even the needs of high-volume labs running several hundred samples per day. However, it should be known that the BitUVisc is highly recommended for highly viscous sample testing.
Samples can be introduced using vacuum or pressure. The latter avoids evaporation of sample, which can be a point of concern in some dilute viscosity applications. Viscometer tubes are easily exchanged in minutes instead of hours, minimizing downtime. All surfaces of the viscometer tubes, including the outside bottom, which is in contact with the sample, are thoroughly cleaned and dried using solvents and air.
