Sample cell temperature control

Refrigerated circulators are versatile and valuable tools used for precisely controlling and maintaining the temperature of samples in various analytical instruments. They play an integral part as ancillary equipment to sophisticated analytical instruments like Rheometer, ICP, Viscometers, Rotary Evaporators etc.


Refrigerated circulators are crucial in many laboratory and industrial settings, where precise temperature control is essential. These devices are particularly important as they support and enhance the functioning of sophisticated analytical instruments. Here’s a deeper look into their role and significance:

  1. Function of Refrigerated Circulators: Refrigerated circulators are designed to provide precise temperature control for various applications. They circulate a coolant, or a refrigerated fluid, through a system to either absorb heat or maintain a low temperature. This allows for the accurate control of the sample temperature, which is essential for many experimental and analytical procedures.
  2. Versatility and Precision: One of the key features of refrigerated circulators is their versatility. They can be used to maintain a wide range of temperatures, often from well below room temperature to above boiling points of common solvents. This makes them suitable for a variety of applications that require different temperature settings.
  3. Support for Analytical Instruments:
    • Rheometer: Rheometers, which measure the flow and deformation of materials, often require precise temperature control to accurately assess material properties. Refrigerated circulators help maintain the sample at a consistent temperature, which is crucial for reliable rheological measurements.
    • Inductively Coupled Plasma (ICP) Instruments: In ICP, which is used for elemental analysis, temperature control is vital for maintaining the stability of the plasma as well as the integrity of the samples.
    • Viscometers: These instruments measure the viscosity of fluids. Temperature can significantly affect viscosity, so maintaining a constant temperature is essential for accurate viscosity measurements.
    • Rotary Evaporators: Used for the gentle removal of solvents from samples, rotary evaporators rely on refrigerated circulators to control the temperature of the condensing medium, which enhances solvent recovery and prevents sample degradation.
  4. Integral to Experimental Accuracy: The accuracy and reliability of experimental results in many scientific and industrial processes depend heavily on maintaining precise temperature conditions. Refrigerated circulators ensure this precision, thereby enhancing the reliability of the results obtained from these sophisticated instruments.
  5. Applications Across Fields: The use of refrigerated circulators spans across various fields including pharmaceuticals, chemical engineering, materials science, and environmental testing. In each of these fields, they are used to support experiments and processes that require stringent temperature control.
  6. Technological Advancements: Modern refrigerated circulators come with advanced features like digital temperature displays, programmable temperature ramps, and remote control capabilities. These features allow for greater control and flexibility, making them even more valuable in research and industrial applications.
  7. Energy Efficiency and Safety: Recent models of refrigerated circulators are designed to be more energy-efficient and include safety features like over-temperature protection and alarms. This makes them not only cost-effective but also safer to use in various settings.

In summary, refrigerated circulators are indispensable tools in laboratories and industries, providing essential support to a range of sophisticated analytical instruments. Their ability to precisely control and maintain temperature is vital for the accuracy and reliability of experimental and analytical processes, making them a cornerstone in scientific research and industrial quality control.