JCVS Online Viscometer

JCVS measures viscosity using the electromagnetic oscillation waveform attenuation method. The raw signal is proportional to the input. After processing by the microprocessor, a linear signal is output.

The torque micro-oscillation principle viscosity measurement method is a surface load technique applied between liquid and solid surfaces. During viscosity determination, the amplitude remains constant throughout the process. As viscosity increases during measurement, the required current also increases accordingly.

When cylindrical, spherical, or annular objects undergo free rotational vibration in a fluid, their amplitude will decay due to viscous torque. The decay coefficient is related to the fluid viscosity. For a cylindrical vibrating body, the viscosity is calculated as:

μ = f / 4πh / (1/R1² – 1/R2²)

Where:

μ: Fluid viscosity

f: Fluid drag force

h: Height of the cylinder

R1: Outer diameter of the cylinder

R2: Inner diameter of the cylinder

For the instrument, the above formula can be simplified as:

μ =λδ  

λ:Derived from the calibration solution

δ:Vibration damping coefficient reduction

Suitable Viscosity Range

1. Range 0-100cp: Mainly used for oils and solvents.
2. Range 0-1000cp: Used for daily chemicals, lubricating oils, asphalt, low-viscosity silicone oil, oilfield polymers, and coatings.
3. Range 0-100000cp: Used for organic chemicals, glue production, medium-viscosity silicone oil, PU, paints, laboratory glass reactors, and flasks.
4. Range 0-10000000cp: Used for glue production, resins, plastics industry, high-viscosity silicone, and polymerization reactions.

Versatile Installation for Any Process

Tank/Reactor Top Mounting

Long insertion probes (500-4000mm) for direct top mounting into tanks and reactors. Ideal for deep vessels where side access is limited or impractical.

Pipeline Integration

Seamless integration into process pipelines through tee or elbow modifications. Multiple probe lengths available to accommodate different pipe diameters.

Side-Wall Mounting

Angled or horizontal mounting options for vessel side walls. Adjustable insertion depth and angle to optimize measurement position and prevent material buildup.

Customizable Connections

Available with various flange sizes (DN32-80) or threaded connections (M40×1.5, NPT) to match your existing process equipment specifications.

Proper Installation for Optimal Results

1、Positioning                                                  For pipeline installation, ensure the probe faces the fluid flow direction. For tank/reactor installation, adjust the angle to prevent material buildup.
2、Mounting                                                    Use appropriate flanges (DN32-80) or threaded connections (M40x1.5, NPT) with proper gaskets. Ensure all bolts have equal torque.
3、Environmental Protection

Install away from high-power frequency converters, strong magnetic fields, radiation, and heating sources.
4、Wiring                                                          Use linear 24V DC power supply. Ensure proper grounding of the double-shielded cable. Avoid short-circuiting the 4-20mA output.
5、Calibration                                               After installation, perform zero calibration and verify with standard liquids. Use USB-485 connector for field adjustments if needed.

IMPORTANT SAFETY NOTE
The viscometer probe is a high-precision instrument. Handle with care during installation. For reactors, pressure vessels, and chemical pipelines, all welding operations must strictly comply with industry standards and chemical construction requirements.

Petroleum & Petrochemical

Crude oil processing, fuel blending, asphalt production, polymer manufacturing, quality control in refineries

Chemical Processing

Resin manufacturing, adhesives production, solvent monitoring, paint and coating formulation, process optimization

Food & Beverage

Syrup consistency control, dairy product processing, sauce manufacturing, fermentation monitoring, quality assurance

Other Industries

Paper manufacturing (starch glue gelatinization), metallurgy (mineral processing), water treatment (sludge monitoring), pharmaceutical production