Low-torque Cone and Plate Viscometer

Product Description

Paints and inks often exhibit different shear rates from manufacturing to application. As typical non-Newtonian fluids, paints and inks show varying viscosity characteristics at different shear rates. Generally, paints are at a low shear rate when stored, transported, leveled, or sagged. They experience medium shear rates when pumped, dipped, or mixed at low speeds. During high-speed dispersion, rolling, spraying, and brush coating, they are subjected to high shear rates, generally ranging from 9000 s⁻¹ to 12000 s⁻¹. Therefore, understanding the rheological characteristics of paints or inks at such high shear rates requires the use of a cone-and-plate viscometer for measurement.

The BGD 182 Cone-and-plate Viscometer uses a specially angled conical spindle, which generates a very high shear rate on the sample under the high-speed drive of a stepper motor. It conforms to ISO 2884-1: "Paints and varnishes — Determination of viscosity using rotary viscometers — Part 1: Cone-and-plate viscometer operated at a high rate of shear."

Standards

ISO 2884-1 (Paints and varnishes - Determination of viscosity using rotary viscometers - Part 1: Cone-and-plate viscometer operated at a high rate of shear)

Technical Specification

• 7-inch touch screen: Menu operation with rich display content (measurement values, spindle number, speed, shear rate, etc.), simple and convenient to operate
• Durable metal shell: Handle for lifting, precise and fast positioning, high reliability
• Carefully designed electrical part: Ensures high reliability, precision, stability, and ease of use
• ARM chip processor: Faster data processing speed
• High precision linear calibration: Ensures higher measurement accuracy through multiple point interpolation
• Stepless speed adjustment: Allows operators to choose different shear rates based on the sample's actual application conditions
• Continuous viscosity measurement: Many viscosity units can be freely interchanged
• Automatic measurement alarm: Alerts when the measurement exceeds the range
• High-speed data transmission interface: Ensures fast and stable communication between the instrument and the computer
• Data storage and export: External USB function
• Built-in high-precision PT100 temperature sensor: Provides high temperature control accuracy and stability
• Temperature calibration function: Ensures precise and reliable temperature control
• Simple calibration function: Users can quickly calibrate the instrument with one bottle of standard oil using the built-in calibration menu
• Data collection and analysis software: Option to thoroughly analyze the sample's rheological features

Main Technical Parameters

• Adjustable Speed Range: 5 rpm to 1000 rpm (continuously variable, @1 rpm)
• Measurement Error: < 2% of full scale
• Sample Volume: < 2 ml (see the table below for details)
• Two built-in temperature control options:
  • 5°C-75°C (L type / Low temperature)
  • 50°C-235°C (H type / High temperature)
• Temperature Resolution: 1°C
• Temperature Control Accuracy: ±0.5°C (L type); ±1°C (H type up to 150°C) or ±2°C (H type above 150°C)
• Rotors: 10 types available (corresponding shear rates and measurement ranges are shown in the table below)
•  

              Note: How to calculate the shear rate：

• • 13.33 × the current speed (for CAP-01 to CAP-03)
  • 3.33 × the current speed (for CAP-04 to CAP-06)
  • 2 × the current speed (for CAP-07 to CAP-09)
  • 5 × the current speed  (for CAP-10）

• Power Supply: AC 220V, 50Hz/60Hz, max current ~1.5A
• Overall Size: 275 mm × 210 mm × 460 mm (L × W × H)
• Net Weight: 12 kg

Ordering information: BGD 182-1 Low-Torque Cone and Plate Viscometer