Viscosity Controller

Accurate Viscosity Measurement in Stirring Environments

In the manufacturing and application processes of coating agents, liquid viscosity significantly impacts product quality. However, with conventional viscosity measurement, turbulence caused by stirring blades and liquid flow acts as a disturbance, making stable measurement difficult. The VA-640 is a Viscosity Controller (a set of a head and an amplifier) capable of measuring liquid viscosity without being affected by turbulence from stirring. Its greatest feature is the adoption of a "proprietary method of casing the measurement part". This suppresses the effects of turbulence to the utmost limit, realizing accurate viscosity measurement without stopping the process, even within a stirring tank.

Easy Installation by Simply Immersing the Head Tip

Unlike conventional offline measurement, there is no time lag or hassle of sampling and measuring separately. The VA-640 enables real-time measurement simply by immersing the head tip into the liquid. It can be easily installed in existing tanks and facilities, and the length to the head tip can be customized according to the equipment environment.

Realizing Automatic Mixing Control via External Communication

In addition to viscosity display, the amplifier is equipped with advanced external communication functions. By utilizing outputs such as measurement values, upper/lower limit set value signals, solvent discharge signals, and external ON/OFF control, automatic control linked with existing equipment is possible. It can be incorporated as a circulation supply device that automatically mixes to a set viscosity, and when combined with material handling and an immersion bath, it can be expanded into an advanced "dip coating device".

Main Applications and Target Liquids

Optimized for in-process measurement of liquids that require viscosity management during stirring, such as automotive board moisture-proof agents and coating agents.

Main Features

• Eliminates the effects of turbulence utilizing a proprietary method of casing the measurement part
• Easy installation just by immersing the head tip into the liquid
• Equipped with external communication functions (Measurement values, upper/lower limit signals, solvent discharge signals, etc.)
• Enables automatic viscosity mixing control linked with existing equipment

Main Specifications

• Product Name: VA-640 Viscosity Controller
• Allowable Viscosity Range: 10 to 90 mPa・s
• Display Resolution: 1 mPa・s
• External Communication Functions: Viscosity value, solvent discharge signal, upper/lower limit set values, sensor ON/OFF
• Power Supply: AC100V±5% 50/60Hz