PRODUCTS
Immersion viscometer bath
+ infoImmersion viscometer baths for accurate temperature control
An immersion viscometer bath provides precise temperature control for viscosity measurements by maintaining samples at a stable and uniform temperature throughout the test. Accurate thermal regulation is essential because viscosity is highly dependent on temperature.
Fungilab offers professional immersion viscometer baths and temperature control systems designed for both capillary and rotational viscosity measurements, ensuring reliable, repeatable and traceable laboratory results.
These systems are widely used in quality control laboratories, research centres and industrial testing environments where precise viscosity determination is required.
Our products
Viscolead Series
Viscolead ONE
Viscolead ADV
Accessories
LABORATORY DIVISION
Dynamic viscosity
Viscosity is part of the science of Rheology which quantifies the resistance materials give to changing shape.
Proper interpretation of viscosity data can reduce the rate of rejects while keeping production and formulation development costs to a minimum. Consistent product quality is ensured through proper viscosity measurements, either alone or in conjunction with compatible tests.
Dynamic viscosity testing can help with:
- Material characterization or “finger-printing”
- Standard testing methods to check for differences between batches
- Indirect way of measuring quality
- Product formulation
- Quality control
- Process control
- Design, optimization and operation of process equipment
Material characterization or “finger-printing”
Standard testing methods to check for differences between batches
Indirect way of measuring quality
Product formulation
Quality control
Process control
Design, optimization and operation of process equipment
Viscosity types
Dynamic viscosity
Centipoise (mPa*s)
Kinematic viscosity
Centistokes (mm2/sec)
Apparent viscosity
Centipoise (mPa*s)
Newton’s Law
According to Newton’s law, the viscosity of a fluid is constant. As shear rate changes, shear stress changes in proportion such that viscosity is constant. Common fluids that exhibit such behavior are:
Unfortunately for us, not all fluids follow Newton’s law. In fact, most fluids do not. For this reason, fluids are classified into two categories:
Rotational Viscometer
The viscosity is calculated from the measured torque and rotational speed, as well as the dimensions of the measuring geometry.
A fluid’s resistance to flow is measured by the torque it exerts on the rotating shaft of the viscometer.
Absolute viscosity: the measuring geometry fulfills certain requirements (which is the case of coaxial spindles).
Relative viscosity: the dimensions of the measuring geometry are not well defined.
Advantage
Flexibility in:
- Viscosity Range
- Temperature range
- Shear rate range
Application
For Newtonian and non-Newtonian substances and temperatures different from room temperature.
Temperature-controlled immersion baths for viscosity testing
Immersion viscometer baths maintain a constant temperature around the measuring vessel, allowing viscosity tests to be performed under stable thermal conditions. Since even small temperature variations can significantly affect viscosity values, immersion baths are an essential component of accurate laboratory viscosity measurements.
They are commonly used with capillary viscometers, rotational viscometers and certified reference materials during calibration and verification procedures.
Applications of immersion viscometer baths
Immersion baths are suitable for:
- Capillary viscosity measurements.
- Rotational viscosity testing.
- Calibration procedures.
- Quality control laboratories.
- Research and development.
- Petroleum, chemical and pharmaceutical testing.
Compatible Fungilab equipment
Fungilab immersion temperature control systems are compatible with a wide range of viscosity measurement instruments, including rotational viscometers and capillary viscometers.
For capillary viscosity testing, the THERMOCAP precision bath provides exceptional temperature stability, making it ideal for laboratory measurements requiring high accuracy.
Heating and cooling solutions
Depending on the required operating temperature, Fungilab offers heating circulators and refrigerated circulators capable of maintaining precise thermal conditions across a broad temperature range.
Calibration and verification
For laboratories operating under quality management systems, immersion baths are frequently used together with certified viscosity standard oils to verify instrument performance and maintain measurement traceability.
Benefits of precise temperature control
- Improved measurement accuracy.
- Excellent temperature stability.
- Higher repeatability between measurements.
- Compliance with laboratory testing procedures.
- Reliable viscosity determination for quality assurance.
Frequently asked questions about the Viscolead ADV
What is an immersion viscometer bath?
An immersion viscometer bath is a temperature-controlled bath used to maintain stable thermal conditions during viscosity measurements.
Why is temperature control important during viscosity testing?
Viscosity changes with temperature, so precise thermal control is essential for obtaining accurate, repeatable and comparable measurement results.
Which instruments can be used with an immersion viscometer bath?
Immersion baths are commonly used with capillary viscometers, rotational viscometers and certified reference materials during calibration procedures.
What is THERMOCAP?
THERMOCAP is Fungilab's precision temperature-controlled bath specifically developed for highly accurate capillary viscosity measurements.
Can immersion baths both heat and cool samples?
Yes. Depending on the model, Fungilab offers heating and refrigerated circulators capable of maintaining stable temperatures across a wide operating range.
Which industries use immersion viscometer baths?
They are widely used in petroleum, chemical, pharmaceutical, food and research laboratories requiring accurate viscosity measurements.
Can immersion baths be used during instrument verification?
Yes. They are frequently used together with certified viscosity standard oils to verify instrument performance under controlled temperature conditions.
What are the main advantages of an immersion viscometer bath?
They provide excellent temperature stability, improved measurement accuracy, better repeatability and reliable laboratory viscosity testing.
