HK-0562A Yield Stress and Apparent Viscosity Tester

Overview

　　HK-0562A Yield Stress and Apparent Viscosity Tester conforms to ASTM D4684 Standard Test Method for Determination of Yield Stress and Apparent Viscosity of Engine Oils at Low Temperature. An engine oil sample is held at 80℃ and then cooled at a programmed cooling rate to a final test temperature and held for a specified time period. At the end of this period, a series of increasing low torques are applied to the rotor shaft until rotation occurs to determine the yield stress, if any is exhibited. A higher torque is then applied to determine the apparent viscosity of the sample.

Features

1. Touch screen display operation, automatic temperature control, built-in CPU precise control of temperature curve
2. It has the functions of photoelectric encoder test and viscometer constant determination
3. Support the storage and query of experimental data, LIMS management results and other functions
4. The refrigeration adopts the semiconductor chip method, which can accurately control the cooling curve

Technical parameters

1. Power supply: AC 220V± 10% 50Hz
2. Power: 2200W
3. Temperature control range: 80°C~-50°C
4. Temperature control accuracy: ≤±0.1°C
5. Test unit: 9 holes
6. Environmental requirements: temperature 5°C~40°C; Humidity ≤ 85%