The Ametek Brookfield DV2T Rotational Viscometer provides rapid, reproducible, high-temperature viscosity measurements that correlate closely with the time-consuming AASHTO T 201 glass capillary method. Asphalt binder products are characterized, and temperature/viscosity charts are developed to estimate mixing and compaction temperatures in hot-mix design. The torque required to rotate a spindle immersed in the specimen is measured and yields a dynamic viscosity value.
The Viscometer system measures viscosities from 100 to 40 million cP with accuracy to ±1% and repeatability of ±0.2%. The system is compatible with a variety of spindles and includes a built-in resistance temperature detector (RTD) to measure sample temperatures from 9°—260°C (48°—500°F). Viscosity in cP or mPa/s, temperature, shear rate and shear stress, percent torque, spindle number and speed, and step program status is displayed during operation on the color touch-screen display. The user can perform test programming directly on the screen, and the auto range feature shows maximum viscosity measured with any spindle/speed combination.
The new user interface provides enhanced security with customizable user levels, date/time stamp files, and password access. User instructions with multi-step test protocols can be created using the new PG Flash Software and uploaded to the Viscometer through a USB Flash Drive (both included with instrument). A USB/PC interface provides optional computer control and automatic data gathering capability using Rheocalc T software, purchased separately. Test data is saved internally or transferred to a flash drive for export to Excel for further analysis, graphing, and reporting. Three USB ports are provided.
LP-22 DV2T Viscometer features a 5in (127mm) full-color display to guide users through test creation and data collection. The system supports multiple languages on the display screen. The LP-22 also offers powerful new programming capabilities and results analysis, including data averaging and QC limits with alarms. Built-In options include timed tests, data averaging, programmable QC limits/alarms, customizable speed/spindle lists, and on-screen data comparison. Test Data can be sent directly on a local printer or transferred to Excel on a PC, using the flash drive. A lab stand, RTD temperature probe, spindle guard leg, PG Flash software, flash drive, and a carrying case are included. Product Dimensions; 10x10x6in (254x254x152mm), WxDxH. Order extra Spindles for broader viscosity range
Note: The LPA-52 Programmable Thermosel Set is required with the Viscometer for compliance with AASHTO T 316 and ASTM D 4402 test standards.
- Built-in temperature probe
- Temperature range: 9°—260°C (40°—500°F)
- Viscosity range: 100cP to 40 million cP
- Accuracy: ±1% of range and reproducible to ±0.2%
- Front-facing bubble level
- 5-inch (145mm) color display
- Auto-range displays viscosity limits
- Data averaging and QC limit alarms
- Test data sent to printer or PC
- Multiple language support
- Customizable user levels & password access
- Continuous display: Viscosity (cP or mPa•s), Temperature (°C & °F), Shear Rate / Shear Stress, % Torque, Spindle
- Brookfield Rotational Viscometer (115V/60Hz or 230V/50Hz)
- RTD Temperature Probe (built-in)