Digital Display Rotational Viscometer
This digital rotational viscometer is equipped with features such as LCD backlight display, program setting, automatic control, timed measurement, automatic scanning, error alarms, and more. The screen directly shows information such as viscosity, temperature, time of timed measurement, speed, rotor number, percentage of torque compared to nominal torque, and the viscosity range selected. The linearity of each range of the viscometer is automatically calibrated by the computer based on the nominal values of standard samples, ensuring that the instrument is highly sensitive, accurate, and repeatable. The obtained data is precise, reliable, and exhibits good repeatability.
Features and Benefits:
1.Measurement data is directly displayed on the LCD screen without the need for secondary calculations.
2.Utilizes microcomputer-driven technology and imported stepper motors for precise, smooth, and reliable rotational speeds.
3.Adopts switch power supply technology with a wide voltage and frequency range, ensuring that power fluctuations do not affect measurement accuracy.
4.The horizontal display device is located below the operating panel and can be adjusted while seated, providing added convenience (new feature).
5.The displayed viscosity values are accurate up to two decimal places, i.e., 0.01 mPa·S (full range) (new feature).
6.Features a timed measurement function, particularly useful for testing non-Newtonian fluids (new feature).
7.Optional temperature probe allows real-time measurement of the tested sample’s temperature.
8.Automatic scanning function recommends suitable combinations of rotor and speed.
9.Automatically displays the viscosity range that the selected combination can measure.
10.Equipped with a printing interface, allowing direct connection to a mini printer for printing various data (new feature).
11.Optional data processing software enables real-time recording of viscosity changes over time, speed or rotor (shear rate), and temperature, providing valuable insights into the viscosity and rheological characteristics of non-Newtonian fluids.
Technical Parameters:
| Model | NDJ-5S | NDJ-9S | NDJ-8S |
| Display | Large LCD display (with both Chinese and English options) | ||
| Speed (r/min) | 6 / 12 / 30/ 60 | 0.3/0.6/1.5/3/6/12/30/60 | |
| Rotor | 1#、2#、3#、4#
0# rotor is optional for measuring ultra-low viscosity below 10. |
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| Measurement Range) (mPa.s) | 1～100,000 | 1～2,000,000 | |
| Viscosity Display Accuracy | 0.01mPa.S | ||
| Measurement Error (Newtonian fluid) | ±1% | ±0.5% | ±1% |
| Repeatability Error (Newtonian fluid) | ±0.5% | ±0.25% | ±0.5% |
| Timed Measurement Function | Standard | ||
| Temperature Measurement | Available | ||
| Auto-Scan Function | Can automatically scan and recommend preferred combinations of rotor and speed | ||
| Measurement Range Display | Can automatically display the viscosity range that the selected rotor and speed combination can measure | ||
| Temperature Control Component | Optional (viscometer constant temperature bath, constant temperature cup, temperature probe, etc.) | ||
| Data Output Interface | Available | ||
| Data Processing Software | Optional | ||
| Power Supply | 110V / 60Hz，220V / 50Hz | ||
| Dimensions | 300 × 300 × 450(mm) | ||
| Weight | 7.5KG | ||
Applications:
This series of digital rotational viscometers can measure the viscosity of Newtonian fluids or the apparent viscosity of non-Newtonian fluids. When equipped with data processing software, it enables the analysis of the rheological properties of non-Newtonian fluids. Widely utilized in the production industries, research institutions, and universities dealing with fluids, semi-fluids, and materials such as oils, paints, coatings, pastes, textiles, food, pharmaceuticals, adhesives, cosmetics, and more.
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