Rotational Viscometer LBN-RV112 Catalog

Rotational Viscometer LBN-RV112 uses a coaxial center structure that requires only 8 to13 ml of sample, delivering fast response and precise temperature control for high-temperature viscosity testing. It offers PC-based calibration for improved accuracy and repeatability across the full measuring range. Equipped with an LCD display that shows results directly in English for easy operation. Integrated microcomputer control and a stable stepper motor ensure smooth speed and reliable test performance. Our Rotational Viscometer supports wide material testing, including oils, polymers, and coatings.

Rotational Speed Range	0.1 to 200 RPM (58 speed levels)
Temperature Control Range	RT+10℃ to 250℃
Measurement Error	±2% (Newtonian fluid)
Repetitive Error	±1% (Newtonian fluid)
Standard Rotor	21#, 27#, 28#, 29#
Rotor – Measurement Range	21#: 25 to 500K mPa·s<br>27#: 125 to 2.5M mPa·s<br> 28#: 250 to 5M mPa·s<br> 29#: 500 to 10M mPa·s <br> K=1000；M=1,000,000
ULR: Rotor	Not applicable / Not provided in reference
Sample Size	21#: 7.8 ml<br>27#: 11.3 ml<br> 28#: 12.6 ml<br> 29#: 11.5 ml
Display	Liquid crystal display
Maximum Measurement Range	Auto-display based on rotor & speed combination
Real-Time Display Viscosity Curve	Viscosity-time curve; Temperature-time curve
Memory	Stores 30 test programs + 30 measurement groups
Put a Seal On (Print Function)	Data & curves can be printed (printer optional)
Data Output Interface	Standard print interface (dedicated printer required)
Power Supply	Switching power supply (voltage fluctuations do not affect accuracy)
Dimension	300 × 300 × 450 mm

High-resolution viscosity display 

Timing for special fluids 

Auto rotor/speed scanning 

Max viscosity indication 

Printer output support 

Multi-unit measurement modes 

Time/temperature/torque endings 

37-step speed adjustment

Rotational Viscometer LBN-RV112 is used to measure the viscosity of oils, polymers, coatings, gels, and high-temperature materials in chemical, petrochemical, food, and research labs.