RV-NDJ-1D Asphalt Brookfield Rotational Viscometer, Viscosity Meter, Heating Type
This instrument is designed and manufactured in accordance with T 0625-2011 "Asphalt Brookfield Rotational Viscosity Test (Brookfield Viscometer Methods)" from the Industry Standard of People's Republic of China JTG E20-2011 Specifications and Test Methods of Bitumen and Bituminous Mixtures for Highway Engineering. It is suitable for determining the absolute viscosity of Newtonian liquids and the apparent viscosity of Non-Newtonian liquids, widely used for viscosity measurements of asphalt, hot melt adhesive, paraffin, high polymer, and other liquids.
Key Technical Features
- Advanced mechanical design technology and manufacturing process with micro-computer technology for speed control, data collection, and processing
- White backlight, high-brightness LCD display showing sample viscosity, rotor number, speed, and other information with clear data presentation
- Real-time test data display with printer output and RS232 communication port for PC connectivity
- Multiple model options with different ranges for measuring various sample types
Technical Specifications
| Measurement Range |
100 mPa•s ~ 2*10⁶ mPa•s (extends to 4*10⁵ mPa•s with optional No.30 spindle) |
| Rotor Specifications |
No.21, 27, 28, and 29 (4 spindles total, No.30 spindle optional) |
| Rotor Speed |
5, 10, 20, 50 r/min |
| Measurement Error |
±1% (F•S); ±3% (F•S) with No.30 spindle |
| Temperature Control Range |
45°C ~ 200°C |
| Temperature Control Accuracy |
±0.1°C |
| Sample Cylinder |
20 ml |
| Print Output |
Needle printer |
| PC Communication |
RS232 interface |
| Power Supply |
AC 220V±10%, 50 Hz |
| Ambient Temperature |
5°C ~ 35°C (5°C lower than controlling temperature when close to ambient) |
| Relative Humidity |
≤80% |