Five models are available conforming to ASTM D2983 Test Method for Low Temperature Viscosity of Automotive Fluids Measured by Brookfield Viscometer. Each model is equipped with turntable rotating at 4 RPM. Ample storage is provided inside the cold chambers for pre- cooling the insulated cell carriers. A digital, indicating controller with resolution of 0.1°C, maintains set temperature to ±0.1°C.
Model BV-70 has an 28 cm (11 inch) square, multipane, insulated window with fluorescent light for observation of the interior, with 28 sample capacity. A video chart recorder (option -V) to track possible temperature upsets, and a digital sample temperature display (option -D) are available for Model BV-70.
Model BV-40 is a smaller, floor space saving, compact unit, with 12 sample capacity. No viewing window, but with digital sample temperature display.
Model BV-20 is a compact, bench top unit with 6 sample capacity with digital sample temperature display. It is designed for those laboratories with a very light sample load and limited space and budget.