INTRODUCTION
The U.S. Solid JFDVT01 series Rotary Viscometer is a significant upgrade over the classic JFDVT series — replacing traditional button controls with an intuitive 5-inch full-color touchscreen, and expanding the measurement range to 10–2,000,000 mPa·s for broader application coverage. Built on ARM technology with a Linux operating system, it delivers improved accuracy of ±1%, stepless speed control across 998 selectable RPM settings, and advanced features including 30 custom test programs, real-time viscosity curve display, and direct USB data export. A true professional-grade upgrade at exceptional value.
FEATURES
- Improved Accuracy: ±1% for Newtonian fluids — twice the precision of the previous ±2% series.
- RS232 Interface: Enables connection to a printer or computer for data transfer.
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Real-Time Curve Display: Visualize viscosity vs. time and shear rate vs. viscosity curves directly on screen.
- Auto Scan Function: Automatically recommends the optimal rotor and speed combination for your sample.
- Front-Mounted Bubble Level: Built-in leveling indicator for quick and accurate horizontal alignment before measurement.
APPLICATIONS
SPECIFICATIONS
| Model | USS-DVT01002 | Brand | U.S. Solid |
|---|---|---|---|
| Rotor Types | 1#, 2#, 3#, 4# | Rotor Velocity (rpm) | 0.3–200 (998 steps) |
| Measurement Accuracy | ±1% (Newton liquid) | Repeatability | ±0.5% |
| Power Supply | AC 110V/60Hz or AC 220V/50Hz | Measurement Range | 10–2×10⁶ mPa·s |
| Ambient Temperature | 5°C–35°C, Relative humidity: ≤80% | Interface | RS232 / USB |
| Data Storage | 30 sets | Test Programs | 30 custom programs |
| System | ARM + Linux | Calibrated Accuracy | Auto (computer calibrated) |
| Display | 5" Full-Color Touchscreen | Dimensions | 300 × 300 × 450 mm |
Optional Ultra-Low Viscosity Measurement Accessory (Not Included): When used with the ULR Ultra-Low Viscosity Adapter Kit and No. 0 spindle, the USS-DVT01002 supports low-viscosity measurements from 1 to 1,000 cP. The usable range depends on spindle speed, sample characteristics, temperature, and test conditions.
The ULR No. 0 spindle and ULR Ultra-Low Viscosity Adapter Kit are sold separately and are not included with this viscometer.
View the ULR Adapter Kit
PACKING LIST
- Main Machine x1
- Packaging Box x1
- Rotor x4
- Wrench x1
- Power Supply x1
- User Manual x1
OTHER MODELS
| Model | USS-DVT01001 | USS-DVT01002 | USS-DVT01003 | USS-DVT01004 | USS-DVT01005 | USS-DVT01006 | USS-DVT01007 | USS-DVT01008 |
|---|---|---|---|---|---|---|---|---|
| Measuring Range | 10 to 6 × 10⁶ mPa · s | 10 to 2 × 10⁶ mPa · s | 100 to 4 × 10⁷ mPa · s | 1.3 × 10⁷ mPa · s | 200 to 8 × 10⁷ mPa · s | 200 to 2.6 × 10⁷ mPa · s | 800 to 32 × 10⁷ mPa · s | 800 to 10.4 × 10⁷ mPa · s |
| With Temp Probe | Optional | Optional | Optional | Optional | Optional | Optional | Optional | Optional |
| With RS232 | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ |
| Rotor Speed | 0.1 - 200 rpm (2,000 steps) | 0.3 - 100 rpm (998 steps) | 0.1 - 200 rpm (2,000 steps) | 0.3 - 100 rpm (998 steps) | 0.1 - 200 rpm (2,000 steps) | 0.3 - 100 rpm (998 steps) | 0.1 - 200 rpm (2,000 steps) | 0.3 - 100 rpm (998 steps) |
| Accuracy | ±1% (Newtonian) | ±1% (Newtonian) | ±1% (Newtonian) | ±1% (Newtonian) | ±1% (Newtonian) | ±1% (Newtonian) | ±1% (Newtonian) | ±1% (Newtonian) |
| Power Supply | AC 110V/60Hz or AC 220V/50Hz | AC 110V/60Hz or AC 220V/50Hz | AC 110V/60Hz or AC 220V/50Hz | AC 110V/60Hz or AC 220V/50Hz | AC 110V/60Hz or AC 220V/50Hz | AC 110V/60Hz or AC 220V/50Hz | AC 110V/60Hz or AC 220V/50Hz | AC 110V/60Hz or AC 220V/50Hz |
| Working Temp | 41 °F to 95 °F (5 °C to 35 °C) | 41 °F to 95 °F (5 °C to 35 °C) | 41 °F to 95 °F (5 °C to 35 °C) | 41 °F to 95 °F (5 °C to 35 °C) | 41 °F to 95 °F (5 °C to 35 °C) | 41 °F to 95 °F (5 °C to 35 °C) | 41 °F to 95 °F (5 °C to 35 °C) | 41 °F to 95 °F (5 °C to 35 °C) |
| Working Humidity | ≤80% | ≤80% | ≤80% | ≤80% | ≤80% | ≤80% | ≤80% | ≤80% |
| Model | USS-DVT01011 | USS-DVT01012 | USS-DVT01013 | USS-DVT01014 | USS-DVT01015 | USS-DVT01016 | USS-DVT01017 | USS-DVT01018 |
|---|---|---|---|---|---|---|---|---|
| Measuring Range | 10-6,000,000 cP | 10-2,000,000 cP | 100-40,000,000 cP | 100-13,000,000 cP | 200-80,000,000 cP | 200-26,000,000 cP | 800-320,000,000 cP | 800-104,000,000 cP |
| Standard Rotors | L1-L4 | L1-L4 | R2-R7 | R2-R7 | R2-R7 | R2-R7 | R2-R7 | R2-R7 |
| Rotating Speed | 0.1-200 rpm | 0.3-100 rpm | 0.1-100 rpm | 0.3-200 rpm | 0.1-100 rpm | 0.3-200 rpm | 0.1-100 rpm | 0.3-200 rpm |
| Speed Settings | 54 selectable speeds | 38 selectable speeds | 54 selectable speeds | 38 selectable speeds | 54 selectable speeds | 38 selectable speeds | 54 selectable speeds | 38 selectable speeds |
| Accuracy | ±1% full range with standard rotors | ±1% full range with standard rotors | ±1% full range with standard rotors | ±1% full range with standard rotors | ±1% full range with standard rotors | ±1% full range with standard rotors | ±1% full range with standard rotors | ±1% full range with standard rotors |
| Sample Volume | 300-400 mL | 300-400 mL | 500-600 mL | 500-600 mL | 500-600 mL | 500-600 mL | 500-600 mL | 500-600 mL |
| Power Supply | AC 100-240V, 50/60Hz | AC 100-240V, 50/60Hz | AC 100-240V, 50/60Hz | AC 100-240V, 50/60Hz | AC 100-240V, 50/60Hz | AC 100-240V, 50/60Hz | AC 100-240V, 50/60Hz | AC 100-240V, 50/60Hz |
| Operating Conditions | 5°C-35°C, ≤80% RH | 5°C-35°C, ≤80% RH | 5°C-35°C, ≤80% RH | 5°C-35°C, ≤80% RH | 5°C-35°C, ≤80% RH | 5°C-35°C, ≤80% RH | 5°C-35°C, ≤80% RH | 5°C-35°C, ≤80% RH |
FAQ
1. What are the requirements for placing the instrument?
Place it on a stable, clean, dry, fireproof, and non-slip surface, away from corrosive gases. Keep it away from magnetic fields and vibration-free workbenches.
2. How to select the appropriate rotor and speed?
If the liquid viscosity is unknown, start with a lower-numbered rotor (e.g., R2) at low speed and adjust gradually. The DVT01 series features an Auto Scan function that automatically recommends the optimal rotor and speed combination for your sample. You can also refer to the Measurement Range Table for each rotor's specific viscosity range.
3. How to level the instrument?
Rotate the base leveling screws until the bubble in the level indicator is centered, and recheck after installing the protection frame.
4. How to clean the rotor?
Disassemble the rotor after each use and clean it with a suitable organic solvent.
5. How to ensure measurement accuracy?
Strictly control the liquid temperature and immerse the rotor in the liquid for sufficient time at a consistent temperature. Avoid air bubbles, keep the rotor centered, and ensure the instrument is level. The measurement accuracy for Newtonian liquids is ±1%, with a repeatability of ±0.5%. Each measurement range is auto-calibrated by computer.
6. How do I export measurement data?
Insert a USB drive into the standard USB port to directly copy stored data — no additional software required. For computer connectivity, use the RS232 interface to transfer data or connect a printer.