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m-VROC II is the next generation leading semi-automated, small sample viscometer, featuring the widest dynamic range (high shear rate viscosity measurements up to 2,020,000 s-1) with as little as 15 microliters of sample.
Minimum Sample Volume | 15 µL |
Shear Rate, s-1 | 0.86 ~ 2,020,000 |
Viscosity Range, mPa-s (cP) | 0.4 ~ 200,000 cP |
Temperature Range* | 4~70 o C |
Accuracy | 2% of Reading |
Repeatability | 0.5% of Reading |
Temperature Sensor | Built-In |
Barcode Reader Function | Included! |
21CFR Part II | Yes! |
Non-Newtonian? | Yes! |
Temperature Sweep | Yes! |
Shear Rate Sweep | Yes! |
m-VROC II is the next generation of leading semi-automated, small sample viscometer. Capable of the most demanding applications including small sample protein therapeutics, m-VROC II features the widest dynamic range (high shear rate viscosity measurements up to 2,020,000 s-1) with as little as 15 microliters of sample.
This product can be configured based on your applications and there are multiple chip options you can choose from. Here is the chip selection guide!
Minimum Sample Volume | 15 µL |
Shear Rate Range, s-1 | 0.5 ~ 2,020,000 s-1 |
Viscosity Range, mPa-s (cP) | 0.86 ~ 200,000 cP |
Temperature Range* | 4~70 o C |
Accuracy | 2% of Reading |
Repeatability | 0.5% of Reading |
Temperature Sensor | Built-In |
Software | Included |
Barcode Reader Function | Included! |
Non-Newtonian? | Yes! |
Temperature Sweep | Yes! |
Shear Rate Sweep | Yes! |
21 CFR Part 11 | Yes! |
*Temperature ranges can be extended
*Chip depths can be customized based on your application!
Selection of Chips*:
Types | Flow channel depth (µm) | Min viscosity (mPa-s) | Max viscosity (mPa-s) | Maximum shear rate (1/s) | Application |
B | 50 | 0.2 | 3,000 | 100,000 | Small sample Medium viscosity |
C | 50 |
10 | 14,000 | 200,000 | Small sample High viscosity |
E | 20 | 1 | 100,000 | 1,400,000 | High shear |
With VROC® Technology, RheoSense took the standard principles of rheometry and created a dynamic micro-sample viscometer by adding microfluidics while reducing the size of the device with MEMS (micro-electrical mechanical systems) manufacturing. The result was a new platform which offers capabilities that are well beyond the limits of conventional viscometers in not only the sample volumes required, but the measurement range and precision.
The measuring cell or “chip” contains a rectangular slit flow channel constructed of borosilicate glass, with a uniform cross-sectional area. The sample is injected at a constant flow rate though the flow channel where multiple pressure sensors mounted within the base monitor the pressure drop from the inlet to the outlet. The pressure drop is correlated with the shear-stress at the boundary wall. The shear rate and shear stress are directly related to the geometry of the rectangular slit and the flow rate which allow for viscosity measurements.
Read more on our technology page!
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m-VROC II Chip Selections |
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Edit this rich-text to provide the visitor with all appropriate information. You might add images, calls-to-action, horizontal rules, videos, quotes, etc. All this and more can be done through the text editor.
Edit this rich-text to provide the visitor with all appropriate information. You might add images, calls-to-action, horizontal rules, videos, quotes, etc. All this and more can be done through the text editor.
Edit this rich-text to provide the visitor with all appropriate information. You might add images, calls-to-action, horizontal rules, videos, quotes, etc. All this and more can be done through the text editor.
Edit this rich-text to provide the visitor with all appropriate information. You might add images, calls-to-action, horizontal rules, videos, quotes, etc. All this and more can be done through the text editor.
Edit this rich-text to provide the visitor with all appropriate information. You might add images, calls-to-action, horizontal rules, videos, quotes, etc. All this and more can be done through the text editor.
Edit this rich-text to provide the visitor with all appropriate information. You might add images, calls-to-action, horizontal rules, videos, quotes, etc. All this and more can be done through the text editor.
Edit this rich-text to provide the visitor with all appropriate information. You might add images, calls-to-action, horizontal rules, videos, quotes, etc. All this and more can be done through the text editor.
Contact us to get a customized quote today!
Copyright © 2021 RheoSense, Inc.. All rights reserved. Terms and Conditions & Online Privacy