High Temperature Micro Viscometer

Because viscosity is heavily dependent on temperature, RheoSense includes a precise temperature controller with all (VROC®) units to provide thermal stability to within +/-0.07 °C. The standard (VROC®) components and temperature control system allow for operation from 4°C to 70°C, but with specific applications, such as those following a pre-existing ISO or ASTM method, the viscosity measurement is required to be performed at a specific elevated temperature. For example, in the case of lubricants, a specific shear rate is required to mimic the conditions within the journal bearings of internal combustion engines under operating conditions.

To meet this requirement, RheoSense introduced the hts-VROC™ model. This system provides the same features and specifications as m-VROC™, but hts-VROC™ provides the added capability to measure at temperatures as high as 125°C.

  • Minimum Sample Volume: 25 µL
  • Wide Dynamic Viscosity Range: 0.2 - 100,000 mPa-s (or cP)
  • Shear Rate Range: 0.5-1.4M s-1
  • Shear Rate and Temperature Rate Sweeps
  • Temperature specification of 4 °C – 105 °C
  • Temperature Stability ~+/- 0.07 °C
  • No Evaporation – No Air-Liquid Interface
  • Characterization of Newtonian and Non-Newtonian Solutions
  • Accuracy up to 2% of Reading
  • Repeatable Measurement up to 0.5% of Reading
  • Typical Test Time will Take Less than One MInute



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