LAWSON Laboratory
Viscometer Tester,Lab Viscometer,RVT-40M
Viscometer Tester,Lab Viscometer,RVT-40M
Fast lead time available
Multiple configurations available
Couldn't load pickup availability
Product Introduction | Features
- Rotational viscometer is an upgraded product of our company's digital viscometer. This instrument adopts more advanced mechanical design technology, manufacturing process, and microcomputer control technology.
- The data acquisition is correct and the display uses a high-resolution TFT display screen, which shows the data clearly and has more comprehensive functions.
- This precision instrument has the characteristics of high measurement sensitivity, reliable results, easy operation, and an elegant appearance. It is designed for measuring the absolute viscosity of Newtonian fluids and the apparent relative viscosity of non-Newtonian fluids.
- It can be widely used in the measurement of products such as oils, paints, plastics, coatings, adhesives, glue meters, resins, and chemical raw materials(Laboratory & Research Use).
Product Application
- RVT Series: Suitable for medium viscosity materials with viscosity higher than those measured by LV torque. Typical examples include: cheese, and paint(Laboratory & Research Use).
Technical Parameters
| Model | RVT-40M |
| Measurement Range | 10-40,000,000 mPa.s |
| Rotor specifications | R2-R7 rotors(0# rotor is available for measuring low viscosity down to 0.1 mPa.s with an adapter) |
| Rotor speed | 0.1-200 rpm stepless speed regulation |
| Automatic gear | Able to automatically select the appropriate rotor number and speed |
| Viscosity-temperature curve | Output of viscosity-temperature time curve available |
| Shear force display | Available (only for small amount adapter and rotor 0) |
| Shear rate display | Available (only for small amount adapter and rotor 0) |
| Communication/Printing | Connected with computer interface and LAWSONSQ software and printer output |
| Timed measurement function | Able to set the time to reach the specified torque, stop time (or directly measure based on the last saved parameter settings) |
| Measurement accuracy | ±1% (Newtonian liquid) |
| Repeatability | ±0.2% full scale |
| Display Information | Viscosity (cP or mPa·s)、 Temperature (°C) (Temperature probe included)、 Rotational speed (RPM) 、Time Rotor used |
| Dimensions | 370*325*280mm |
| Power Supply | AC 100-240V 50/60Hz 1.0A |
| Net Weight | 7.2kg |
RV Series Rotor Range (cp)

Model Measurement range
R2 400~80K
R3 1K~200K
R4 2K~400K
R5 4K~800K
R6 10K~2M
R7 40K~8M
HA series viscometer range=RV series viscometer range * 2
HB series viscometer range=RV series viscometer range * 8
Micro adapter selection

Model Minimum sample size
14# 2.1ml
18# 6.7ml
21# 7.1ml
27# 10.4ml
28# 11ml
29# 13.5ml
Micro adapters are used for micro samples and samples that require constant temperature control
■ Can measure a minimum of 2.1ml
■ Double-layer reaction cup design can be combined with a dedicated constant temperature bath
For laboratory and research use only. Not intended for clinical, medical, or direct food processing use.
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