CMRV-4500 Mini-Rotary Viscometer
The CMRV-4500 is a compact and efficient viscometer that measures yield stress and viscosity of drive line lubricants and new and used automotive engine oils over a temperature range of -5°C to -40°C. It meets ASTM D4684, D3829, D6821 and D6896 requirements and determines pumping viscosity in accordance with the latest SAE J300 specifications.
The CMRV-4500 contains nine small rotary viscometers within a thermostatic aluminum block this eliminates the need for methanol-based external refrigeration devices. Instead, the CMRV-4500 uses a compact air/water heat exchanger that circulates a mixture of coolant water and antifreeze through the instrument to cool the hot side of the thermoelectric cells. The result is a quiet, low-maintenance system without potentially hazardous refrigerants.
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Features & Benefits
- Meets ASTM D4684, ASTM D3829, ASTM D6821, and ASTM D6896 requirements.
- Meets latest SAE J300 specifications for low-temperature pumpability.
- Temperature range: -5 °C to -40 °C.
- High resolution optical encoder for digital detection of yield stress and viscosity.
- Dry gas purge regulator maintains a frost-free environment.
- Benchtop unit measures yield stress and viscosity of drive line lubricants and engine oils.
- Thermoelectric cooling removes temperature gradients.
- Air/water heat exchanger provides a quiet, low-maintenance system.
- High performance rotors with locking pins and carbon fiber shafts minimize test cell heat transfer.
- Integrated drawer unit for convenient storage of CMRV accessories.
- Semi-automated testing with VISCPRO® software.
- Viscosity and yield stress are automatically calculated and stored or exported via built-in LIMS output.
- Optional multi-unit interface kit permits networking and control of up to four CMRV units from a single PC.
