Environmentally-friendly Peltier thermoelectric cooling does not require hazardous fluids. Small footprint conserves bench space and allows installation of multiple instruments for redundancy and multiple temperature cycles. Eliminates sample disruption during preheating, room temperature stabilization, cooling and final viscosity testing. Reduces result variability due to temperature fluctuation while providing superior precision.

The post Fully Automated Brookfield Viscosity Analyzer appeared first on Ayalytical.

Designed with constancy and accuracy in mind, the stainless steel, low temperature viscosity bath is equipped with automatic defrosting mechanism and a digital micro-processor PID temperature regulator fitted with a PT100 A temperature probe, ensuring stable temperatures at 0.3C across a range from ambient to -40 C. The Brookfield viscometer houses an internal turntable, which positions samples into place, rotating at 4 RPM, and includes a rack for 3 test tubes and an insulated Balsa wood cell sample carrier.

The 150 kg Brookfield low temperature viscosity bath is equipped with four wheels and brake for easy mobility around the laboratory. The air bath is sealed with an anti-acid epoxidic coat, preventing corrosive damage to the instrument. Because operator safety is crucial, the viscometer is fitted with an earth leakage circuit, and refrigerant gases are CFC-free.

The post BROOKFIELD – LOW TEMPERATURE VISCOSITY appeared first on Ayalytical.

Certain models allow for independent temperature control and dual chambers. Ample storage is provided inside the cold chambers for pre-cooling the insulated cell carriers. A digital, indicating controller with a 0.1?C resolution maintains the temperature stability to ?0.1?C, with a lowest possible temperature reach of -60? C. Air chamber bath models vary from robust testing units to those designed for laboratories with light sample loads and limited space and budgets.

See the models tab for all available bench top and floor models that test Brookfield viscosity.

The post Air Chamber Baths for Brookfield Viscosity at Low Temperatures appeared first on Ayalytical.

Using Windows-based PC proprietary software, two baths can be controlled simultaneously, allowing the baths to operate at two independent temperatures with independent start, stop, and duration times. The operating temperature range of the programmable liquid baths is 20 to -55C, with a temperature control within 0.1C. The liquid baths are programmed to ensure that sample cooling rates equal the same cooling rates identified when a sample is immersed in the constant low temperature air chamber. The baths also can be programmed to cool at a rate of 1C per minute from ambient to as low as -55C as per CEC-L-18A, ISO 9262, and IP 267 for the measurement of European low temperature Brookfield viscosity.

Holding about 3 liters of bath medium, the bath is an unsilvered, illuminated Dewar jar that allows full visibility of the test samples to facilitate the proper position of the spindle bead immersion level. The turntable, which holds 10 test samples, is manually rotated until the proper test cell is under the viscometer after proper conditioning time, The spindle is connected while the sample is in the liquid bath, allowing viscosity measurement without removing the sample from the temperature-controlled environment.

Duplicate samples at -40C were measured in a Model 76 Liquid Programmable Bath. Of the 56 samples, the average variability between the duplicate samples was 1.13% of mean. This compares favorably to the method?s stated precision of 11.8%. The key factor in the improved precision is the superior temperature control of the sample as its viscosity is being measured.
See Models ?tab for all bench top and floor models.

The post Programmable Liquid Visibility Bath for Brookfield Viscosity at Low Temperatures appeared first on Ayalytical.

The post Reference Fluid, pint appeared first on Ayalytical.

The post Reference Fluid, pint appeared first on Ayalytical.

The post Reference Fluid, pint appeared first on Ayalytical.

The post Reference Fluid, pint appeared first on Ayalytical.

The post Reference Fluid, pint appeared first on Ayalytical.

The post Reference Fluid, pint appeared first on Ayalytical.