For Low Temperature Pumping Viscosity of Engine Oils
The CMRV-4500 is an automated mini-rotary viscometer for measuring low-temperature pumping viscosity from –5 °C to –40 °C. It has 9 test cells. It is thermoelectrically-cooled via an external air/water heat exchanger.
Common Applications
- Drive line lubricants
- New engine oils
- Used automotive oils
Features & Benefits
Reliable and accurate results
- Meets requirements of ASTM D4684, ASTM D3829, ASTM D6821* and ASTM D6896
- Meets latest SAE J300 specifications for low-temperature pumpability
- Reliable and accurate temperature control from –5 °C to –40 °C
- Dry gas purge regulator maintains a frost-free environment throughout the precise, microprocessor-controlled cooling cycle
Compact, efficient design
- Benchtop unit measures yield stress and viscosity for drive line lubricants and engine oils
- Solid-state thermoelectric cooling removes temperature gradients to provide significantly enhanced precision and superb temperature uniformity for all nine test cells
- Compact air/water heat exchanger provides a quiet, low-maintenance system that does not rely on potentially hazardous refrigerants
- High performance rotors with carbon fiber shafts minimize heat transfer in and out of test cells
- Integrated drawer unit for convenient storage of CMRV accessories including rotors, weights, and cell caps.
Fully automated testing
- VISCPRO® software contains pre-configured methods for each SAE-specified oil grade and referenced ASTM methods
- Viscosity and yield stress are automatically calculated and saved
Versatility
- Software allows custom cooling profile configuration
- Optional multi-unit interface kit permits control of up to four units from a single PC
* With optional drive line rotor kit
