AV2 Automatic Viscometer From Rheotek For Testing Oil Viscosity and Fuel Viscosity

Base Oils, formulated oils, new & used lubricants, distillate fuels, residual fuels and used oils

Test Methods: ASTM D445, D2270, ISO 3104, IP71 and IP543

Two Full range measuring positions
Smart XYZ Autosampler
Heated sample rack
Precise NiR detection
Transparent, opaque and black oils
In-situ cleaning
Viscosity index

PRINCIPLE OF OPERATION

At the heart of the AV-2 are two traditional capillary tubes, which determine viscosity by measuring flow times. This ensures optimal precision of measurement but without the inconvenience of maintaining a liquid bath. Instead, the AV-2 combines advanced multi-processor systems, accurate thermal control, super sensitive micro-detectors and very efficient in-situ automatic cleaning system. The instrument is specially well suited to measure black oils and residual fuels.

PRECISION

The RHEOTEK AV-2 is fully compliant with standard test method IP 543 - Determination of the dynamic viscosity of distillate & residual fuel oils and calculation of kinematic viscosity - Automatic capillary tube method. This method shows that there is good correlation between viscosities determined by the automatic capillary tube method and IP 71, ISO 3104 & ASTM D 445 manual kinematic viscosity results.

VISCOSITY & DENSITY

The AV-2 measures flow times & determines viscosity in mPa.s. In addition some models determine density to a precision of four decimal places. The two measured values are used to report kinematic viscosity in mm2/s, cSt. The result database records all measurements and calculations in order to provide complete traceability of results.

RESULTS DATABASE

The RHEOTEK AV-2 is equipped with a very powerful database for extensive management of measurement results. A number of different filtering and sorting options are available for automatic generation of reports. The flexible software allows for the PSL installation engineer to configure this function according to the practices in the individual laboratory.

The AV-2 is available in 6 standard models based upon the following applications:

LUBRICANTS

AV-2 Lubricants

Suitable for measuring the kinematic viscosity of new and/or used lubricating oils at 40 and 100?C. Each sample is measured at 40 and 100?C simultaneously.
Reported results include kinematic viscosity and Viscosity Index.

DISTILLATE AND RESIDUAL FUELS

AV-2 40/50 Fuels

Suitable for measuring the kinematic viscosity of distillate fuels (diesel and gas oil) at 40?C and residual fuel oil at 50?C. Two samples are measured simultaneously. Distillates are run first on both viscometers with the temperature set to 40?C. The temperature can then be changed to 50?C.

AV-2 Refinery Fuels

Suitable for measuring the kinematic viscosity of distillate fuels (diesel and gas oil) at 40?C and residual fuel oil at 50?C, 80?C or 100?C. Distillates run on viscometer 1 and residual fuel oils on Viscometer 2. Viscometer 2 can be set to 50?C, 80?C or 100?C depending on what temperature the laboratory requires.

AV-2 RFO

Suitable for measuring the kinematic viscosity of residual fuel oil at 50?C, 80?C or 100?C. Two samples are measured simultaneously.
Separate auto sampler needles load simultaneously from two sample vials. Viscometer 1 & 2 operate at the same temperature in the range 50?C to 100?C.

USED MOTOR OILS

AV-2 UMO(40)

Suitable for measuring the viscosity of used motor oil at 40?C. 2 samples are measured simultaneously. The AV-2 is optimized for high sample throughput with a small sample volume (<5ml). Separate auto sampler needs load from two sample vials simultaneously. Viscometer 1 & 2 operate at 40?C.

AV-2 UMO (100)

Suitable for measuring the viscosity of used motor oil at 100?C. 2 samples measured simultaneously. The AV-2 is optimized for high sample throughput with small sample volume (<5ml). Separate auto sampler needles load from 2 sample vials simultaneously. Viscometer 1 & 2 operate at 100?C.