特性

• Drive line lubricants
• New engine oils
• Used automotive oils
• 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
• 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.
• 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
• Software allows custom cooling profile configuration
• Optional multi-unit interface kit permits control of up to four units from a single PC

"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","Reliable and accurate results","Compact, efficient design","Fully automated testing","Versatility"

技术参数