Brookfield Rheometer

LP-23 Brookfield Rheometer, DV3T provides rapid measurements of medium viscosity samples and data analysis for flow index, yield stress, flow curves, leveling, recovery, and single-point viscosity value. The LP-23 can also be used to determine mixing and compaction temperatures of asphalt and estimate binder flow, mix, and performance characteristics in varying climatic conditions when conforming to ASTM D4402 and AASHTO T316 standards. When asphalt binder is heated to precisely-controlled temperatures using the LPA-52 Thermosel Set, a rotating spindle is placed in the sample. The spindle speed and torque are then used to measure the binder’s viscosity. Fast, straight-forward, singlepoint viscosity is also easily accomplished with the LP-23, making it the ideal "all-in-one" instrument for both busy QC labs and demanding R&D applications modeling comprehensive flow behavior.

The LP-23’s 7in (178mm) full-color touch-screen displays percent torque, speed/spindle, step program status and math model calculations, has multiple-language support, and provides real-time graphing of data. Auto range feature shows maximum viscosity measured with any spindle/speed combination. Multi-step test protocols can be created and uploaded to the LP-23 via USB. Programming of test parameters can be performed directly on the screen. Data can also be transferred to a PC or sent to a printer. Security features include password access, date and time stamp file, and customizable user access. The LP-23 is also capable of automatic data collection and analysis with LPA-62 RheocalcT Software, available separately.

Features:

• Accurate testing of viscosity, flow index, flow curves, yield stress, leveling, and recovery
• 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 (178mm) color display
• Downloadable custom test programs
• Auto-range displays viscosity limits
• Data averaging and QC limit alarms
• Test data sent to printer or PC
• Continuous display: Viscosity (cP or mPa•s), Temperature (°C & °F), Shear Rate / Shear Stress, % Torque, Spindle
• Multiple language support
• Customizable user levels & password access

Included Items:

• Brookfield Rheometer (115V/60Hz or 230V/50Hz)
• RTD Temperature Probe (built-in)
• Spindle Guard Leg
• PG Flash Software
• USB Flash Drive
• Lab Stand
• Carrying Case

Accessories:

• LPA-52 Brookfield Programmable Thermosel Set required to ensure compliance with AAHSTO T 316 & ASTM D4402
• LPA-56 Brookfield Disposable Thermosel Chambers for use with LPA-52, reduces cleaning time
• LPA-55 Brookfield Thermosel Chamber is reusable, made of stainless steel and recommended with high testing levels
• LPA-118 Spindle Extension Link replacement extension link for LP-22 or LP-23
• Brookfield Viscosity Fluid stable liquid polymers come in three ranges of viscosity levels to verify Viscometer performance
• LPA-121 Brookfield Thermosel Spindle-SC4-21 designed for lower viscosity determinations
• LPA-127 Brookfield Thermosel Spindle-SC4-27 designed for mid-range viscosity determinations and standard with the LPA-52 Thermosel Set
• LPA-128 Brookfield Thermosel Spindle-SC4-28 designed for high-range viscosity determinations
• LPA-129 Brookfield Thermosel Spindle-SC4-29 designed for high viscosity determinations
• LPA-62 Brookfield Rheocalc-T Software automates data collection and analysis, requires a PC
• LPA-58 Brookfield Chuck Closure for Disposable Thermosels required when using disposable thermosels
• HMA-354 Computer System, 115V/60Hz for use with LPA-62 software for data collection and analysis