Using a precision rotating spindle and digital measurement system, digital rotational viscometer provides clear viscosity readings in mPa·s and is suitable for laboratory testing, quality control, R&D, and small-batch sample analysis. Stepless/stepped speed adjustment ranging from 0.1 to 200 rpm. By combining digital readout, controlled testing conditions, and efficient sample usage, the viscometer helps laboratories improve testing efficiency, support formulation development, and make faster quality-control decisions.

Rotary Viscometer Equipped With TFT Color LCD Screen

Stable Lifting Structure & Enlarged Base
This type of rotational viscometer is suitable for accurately measuring viscosity sample of small volume. Its micro-sample testing capability makes it suitable for laboratory research, quality control, formulation development, and material analysis across multiple industries, including pharmaceuticals, cosmetics, chemicals, food & beverages, paints & coatings, inks, and scientific research.
| Model | SISCO-VISCO-DV-LV | SISCO-VISCO-DV-RV | SISCO-VISCO-DV-HA | SISCO-VISCO-DV-HB |
| Measuring Range | 6~6 *10⁶mPa·s | 40~4 *10⁷mPa·s | 80~8 *10⁷mPa·s | 320~3.2 *10⁸mPa·s |
| Rotor | Rotors 1 to 4 | Rotors R2 to R7 | ||
| Rotor Speed | Stepless/stepwise speed adjustment ranging from 0.1 to 200 rpm | |||
| Display | TFT color liquid crystal display | |||
| Viscosity Measurement Accuracy | ±1% (Newtonian fluid) | |||
| Viscosity Measurement Repeatability Error | ±0.5% (Newtonian fluid) | |||
| RS232 Interface | √ (RS232 communication cable included) | |||
| Temperature Sensor | PT100 | |||
| Input Power/ Frequency | AC 110~240V/50~60Hz | |||
| Recommended Temperature Measuring Range | 0~60℃ | |||
| Temperature Measurement Accuracy | ±0.1℃ | |||
| Product Size | 370*325*500mm | |||
| Net Weight | 6.5kg | |||
Q1: What is a micro-sample rotational viscometer?
A1: A micro-sample rotational viscometer is a precision instrument designed to measure the viscosity of liquids using very small sample volumes. It determines viscosity by measuring the resistance generated when a spindle rotates in the sample.
Q2: What is Newtonian fluid?
A2: The Newtonian fluid is a fluid whose viscosity remains relatively constant when the shear rate changes, provided that temperature and pressure remain stable. In other words, its resistance to flow does not depend significantly on how fast it is stirred, pumped, or sheared. Common examples include water, ethanol, and many low-viscosity solvents.
Q3: What is the measurement range of this digital rotational viscometer?
A3: SISCO micro-sample digital rotational viscometer is available in four models with different measurement ranges to meet various viscosity testing requirements. The available ranges are 6~6 × 10⁶ mPa·s, 40~4 × 10⁷ mPa·s, 80~8 × 10⁷ mPa·s, and 320~3.2 × 10⁸ mPa·s. This wide selection allows users to choose a suitable model according to the viscosity of samples.
Tips: Can this rotary viscometer operate continuously for long periods?
This rotary viscometer is designed primarily for accurate viscosity measurement with small sample volumes and is suitable for routine laboratory testing. For optimal measurement performance and to help protect the instrument, long-term continuous operation is not recommended. We suggest using the viscometer for individual measurements or short testing cycles, with appropriate intervals between tests when multiple measurements are required. Allowing the instrument to rest between extended testing sessions can help reduce heat buildup and unnecessary mechanical wear.
Thank you for buying industrial test and measurement equipment on SISCO.com, all products sold by SISCO and the partner cover a 12 months warranty, effective from the date of receiving the products.
SISCO is responsible for providing free spare parts, and free technical support to assist the customer to repair the defective products until the problem is solved.