Spectro Inc. (USA) announces a new Automatic High Speed Viscometer, Model A-HSV 802, a bench-top unit with two baths and four viscometer tubes in each bath. Capable of running as many as 37 samples per hour at two temperatures, the A-HSV was designed specifically for used oil samples. A unique feature of the A-HSV is that 2 independent viscosity measurements are made in each tube for every sample. Each viscometer tube has two sections with different diameters thus subjecting the sample to two different shear rates as the sample flows through the tube. Results from each section must agree closely. This built-in, patented, quality control process virtually eliminates inaccurate viscosity measurements or re-running samples for veri fication. An optional preheating module is available to handle samples with higher viscosities to manage samples up to 1,000 cSt @40°C and 80 cSt @100°C. The autosampler is capable of holding 200+ samples depending on the configuration and requires only 7 ml for the two temperature measurements.
System design eliminates sample carry over. The last portion of oil drawn up is that which is measured. The probe is submerged in the sample only as far as needed as the software tracks sample vial content.
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