ASTM D7279 Automated Houillon Viscometer

Automated Houillon Viscometer

The automated houillon viscometer is a liquid viscosity detection device designed based on ASTM D7279 standard. It adopts a folding tube capillary structure and can accurately measure the flow time of the sample passing through the capillary under the action of gravity, automatically calculating the kinematic viscosity (unit: mm ²/s). It has the functions of automatic precise dosing and automatic dual solvent cleaning, significantly improving efficiency compared to traditional manual methods, and reducing pollution through closed pipelines. It is widely used in fields such as oil refining and new energy research and development, and is an efficient core instrument for laboratory viscosity analysis.

Core standards and testing principles:

ASTM D7279：The international standard specifies the method for determining the kinematic viscosity of liquids using an automatic tilt tube viscometer system. By measuring the flow time of a certain volume of liquid flowing through a folded capillary tube under the action of gravity, and combining it with the viscosity meter constant to calculate the kinematic viscosity (unit: mm ²/s), it is suitable for Newtonian fluids with a viscosity range of 0.3~5000 mm ²/s.

Principle advantages:The folded tube structure reduces bubble retention through a tilted design, combined with automatic temperature control and photoelectric sensing technology. Compared with traditional Ubbelohde/Pinker viscometers, it significantly improves the measurement accuracy of low viscosity samples (such as gasoline and solvent oil), avoids manual timing errors, and increases single test efficiency by more than 50%.

Working Environment:

Features:

1. Measure speed. The fastest result is 1 minute, usually 3 to 5 minutes. The results of the entire process, including injection, measurement, cleaning, and drying, are generally within 10 minutes.

2. High degree of automation. Measurement, cleaning, drying, result calculation, and repeatability calculation are all automatically completed.

3. Multiple types of measurement samples. It can measure transparent and opaque samples, including gasoline, diesel, kerosene, cutting fluid, lubricating oil, new oil, in use oil, and other Newtonian liquids.

4. Accurate measurement data. This instrument has a secondary precise quantification function, automatically cutting the sample liquid column, accurately controlling the sample volume, no longer relying on micro pipette quantification, avoiding the limitations and deviations of pipette measurement, and ensuring data accuracy.

5. Fully automatic dual solvent cleaning, fast cleaning, low cleaning cost. The cleaning process consumes no more than 20 milliliters of cleaning solution.

6. Auxiliary functions. Including automatic blocking, constant calibration, temperature calibration, internal clock timing check, automatic calculation of viscosity index, automatic conversion of kinematic viscosity to Ensign viscosity, and automatic calculation of repeatability.

7. Dual over temperature protection for software and hardware, over temperature alarm, and anti dry burn protection function.

8. The temperature rises and falls quickly. The fastest rate of temperature rise and fall is 5 ℃/minute.

9. The houillon viscometer adopts a double-layer glass cylinder for more uniform temperature.

10. The houillon viscometer adopts PT500 high-precision temperature sensor, and the temperature stability and accuracy of the constant temperature box are high, with a temperature control accuracy of up to 0.01 ℃.

Specifications:

Detail Images: