VMC Dedicated Viscometers: 410-UA / 410-CA / 410-CRA
These dedicated glass capillary viscometers are manufactured specifically for RIGOSHA's VMC automatic viscometer systems so that they seat smoothly into the special cassette holder.

Manufacturer: Rigo — Japan
Overview
These dedicated glass capillary viscometers are manufactured specifically for RIGOSHA's VMC automatic viscometer systems so that they seat smoothly into the special cassette holder. The lineup covers the three capillary types most widely used in kinematic viscosity testing: the Ubbelohde type (410-UA), the Cannon-Fenske type (410-CA), and the Cannon-Fenske reverse-flow type (410-CRA). Each type is produced in a graded series of capillary constants to cover a wide span of sample viscosities, and every tube is manufactured to the tight dimensional tolerances required for automatic handling.
Precision Fit for Automatic Handling
Because the VMC cassette holder loads and unloads viscometers automatically, each 410-series tube is manufactured to strict dimensional tolerances so that it seats correctly every time. This precision is what allows the VMC systems to exchange viscometers in one touch without manual alignment.
Graded Series for Wide Viscosity Coverage
Each viscometer type is available in a range of series sizes with different capillary constants, allowing the correct tube to be selected for the expected viscosity of the sample. Across the full range of sizes, the three viscometer types together cover kinematic viscosities from well below 1 mm²/s up to tens of thousands of mm²/s.
Common Specifications
| Specification | 410-UA / 410-CA / 410-CRA |
|---|---|
| Applicable Standards | JIS K2283 / ASTM D445, D446 (Kinematic Viscosity); JIS K7367 / ISO 1628 (Viscosity Number, Intrinsic Viscosity) |
Model Comparison
| Specification | 410-UA (Ubbelohde) | 410-CA (Cannon-Fenske) | 410-CRA (Cannon-Fenske Reverse-Flow) |
|---|---|---|---|
| Number of Series Sizes | 13 (Series 0 to 4) | 11 (Series 25 to 500) | 12 (Series 25 to 600) |
| Kinematic Viscosity Coverage | 0.3-10,000 mm²/s | 0.5-8,000 mm²/s | 0.4-20,000 mm²/s |
