Digital Viscometer
Benchtop digital viscometer operating at 200 rpm for precise rheological measurements of liquids and semi-solids in research and quality control applications.
| Automation Level | semi-automated |
| Package Size(mm) | 400*350*360 |
| Gross Weight(kg) | 10 |
| Brand | ConductScience |
| Speed/RPM | 200rpm |
| Power/Voltage | AC100~240V, 50/60Hz |
The Digital Viscometer is a benchtop rotational viscometer designed for precise rheological measurements of liquids and semi-solids in research and quality control applications. Operating at 200 rpm with universal AC power compatibility (100-240V, 50/60Hz), this instrument provides consistent viscosity measurements across a range of sample types and viscosities.
The compact design accommodates standard laboratory bench space while delivering reliable performance for routine viscosity analysis. The digital interface provides direct readout of viscosity values, supporting quantitative assessment of fluid properties in various research contexts. The instrument's straightforward operation makes it suitable for both experienced researchers and laboratory technicians conducting viscosity characterization studies.
How It Works
The Digital Viscometer operates on the principle of rotational viscometry, where a spindle rotates at a controlled speed (200 rpm) through the test sample. The instrument measures the torque required to maintain this constant rotational speed, which is directly proportional to the sample's viscosity and resistance to flow.
As the spindle encounters resistance from the fluid, the motor must work harder to maintain the set rotation speed. This increased torque is detected by the instrument's sensor system and converted into viscosity units through calibrated algorithms. The digital display provides real-time viscosity readings, allowing for immediate assessment of sample properties.
The relationship between torque and viscosity follows established rheological principles, where higher viscosity fluids generate greater resistance to the rotating spindle. Temperature control of the sample is critical, as viscosity is temperature-dependent for most materials.
Features & Benefits
Automation Level
- semi-automated
Package Size(mm)
- 400*350*360
Gross Weight(kg)
- 10
Brand
- ConductScience
Research Domain
- Analytical Chemistry
- Environmental Monitoring
- Food Science
- Industrial Hygiene
- Materials Science
- Pharmaceutical QC
Speed/RPM
- 200rpm
Power/Voltage
- AC100~240V, 50/60Hz
Weight
- 22.05 kg
Dimensions
- L: 15.75 mm
- W: 14.17 mm
- H: 13.78 mm
Comparison Guide
| Feature | This Product | Typical Alternative | Advantage |
|---|---|---|---|
| Rotation Speed Control | Fixed 200 rpm operation | Entry-level models may offer limited speed options or manual adjustment | Eliminates operator variability and ensures consistent shear rate conditions across all measurements. |
| Power Supply Compatibility | Universal AC 100-240V, 50/60Hz | Basic models often require specific voltage configurations | Enables use in international laboratories without additional power conversion equipment. |
| Display Type | Digital readout | Analog scales are common in budget instruments | Eliminates reading errors and provides precise numerical values for accurate data recording. |
| Construction Quality | 10 kg total weight indicating robust build | Lightweight models may compromise stability | Substantial construction provides measurement stability and reduces vibration sensitivity. |
This digital viscometer combines essential features for reliable viscosity measurement including universal power compatibility, digital readout precision, and robust construction. The fixed 200 rpm operation provides consistent measurement conditions suitable for routine quality control and research applications.
Practical Tips
Use certified viscosity reference standards that bracket your expected sample range for calibration verification.
Why: Ensures measurement accuracy across the working range and maintains traceability to national standards.
Clean the spindle thoroughly between samples and inspect for wear or damage that could affect measurements.
Why: Contamination or spindle damage directly impacts measurement accuracy and repeatability.
Allow samples to reach thermal equilibrium before measurement and maintain consistent temperature throughout testing.
Why: Viscosity changes significantly with temperature, and thermal gradients can cause measurement drift.
Use the smallest spindle that provides adequate torque reading for your sample viscosity range.
Why: Optimizes measurement sensitivity and reduces edge effects from container walls.
Allow readings to stabilize for at least 30 seconds before recording values, especially for thixotropic samples.
Why: Some materials exhibit time-dependent viscosity changes under shear that affect measurement reproducibility.
Check for air bubbles in the sample and spindle wobble if readings appear erratic or unstable.
Why: Air entrainment and mechanical issues create measurement artifacts that compromise data quality.
Ensure proper ventilation when measuring volatile or hazardous materials and use appropriate personal protective equipment.
Why: Rotational mixing can increase vapor generation and sample contact risk during measurement procedures.
Setup Guide
What’s in the Box
- Digital viscometer main unit
- Power cord with universal AC adapter
- Standard spindle set (typical)
- Sample containers (typical)
- User manual and operation guide
- Calibration certificate (typical)
- Protective dust cover (typical)
Warranty
ConductScience provides a standard one-year manufacturer warranty covering defects in materials and workmanship, with technical support available for operation and maintenance questions.
Compliance
What is the measurement range and accuracy of this viscometer?
The specific measurement range depends on spindle selection and sample properties. Consult the product datasheet for detailed specifications including accuracy, repeatability, and viscosity range for different spindle configurations.
Can the rotation speed be adjusted for different measurement requirements?
This model operates at a fixed 200 rpm rotation speed, which provides consistent shear rate conditions. If variable speed is required, consider alternative models with adjustable RPM settings.
What spindle types are compatible and how do I select the appropriate one?
Spindle selection depends on sample viscosity range and container geometry. Higher viscosity samples typically require smaller spindles, while low-viscosity fluids need larger spindles for adequate torque measurement.
How often does the instrument require calibration verification?
Calibration verification frequency depends on usage intensity and laboratory QC requirements. Monthly checks with certified reference standards are typical for routine use, with more frequent verification for critical applications.
What sample volume is required for accurate measurements?
Sample volume must be sufficient to fully immerse the spindle without creating vortex effects. Exact volume requirements depend on spindle size and container dimensions - consult the user manual for specific recommendations.
Can this viscometer measure non-Newtonian fluids?
At the fixed 200 rpm speed, this instrument provides single-point viscosity measurements. Non-Newtonian behavior characterization requires multiple shear rates, which would need a variable-speed viscometer.
What data output and recording capabilities are available?
The digital display provides direct viscosity readings. For data logging and computer interface capabilities, consult the product specifications as these features vary by model configuration.
How does temperature affect measurements and is temperature control needed?
Viscosity is highly temperature-dependent for most fluids. While the viscometer does not include integrated temperature control, maintaining consistent sample temperature is critical for reproducible results.
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