How to Select a Circulating Bath

There are a number of important factors to consider to help with the selection of a Circulating Bath:

  • Working temperature and stability – A refrigerated or heated circulator will be needed if the working temperature is near or below the ambient temperature. Applications that need maximum temperatures above 160°C or ±0.01°C temperature stability require circulators with performance or advanced series temperature controllers.
  • Cooling/heating demand – A circulator with a small reservoir is generally suitable if external circulation alone is required and the heating or cooling demand is moderate. In case the external heating or cooling demand is high or samples will be put in the internal reservoir, a circulator with a larger reservoir will be needed.
  • External circulation – One can use all PolyScience temperature controllers for close-loop external circulation. In case open-loop external circulation is required, or if the application requires a flow rate above 3 gpm (11 l/min), a circulator with a performance or advanced series controller is required.

Circulating Bath Heating and Cooling Performance

The circulating bath heating and cooling performance is shown in Figure 1 below:

Circulating bath heating and cooling performance

Figure 1. Circulating bath heating and cooling performance. Image credit: PolyScience

 

This information has been sourced, reviewed and adapted from materials provided by PolyScience.

For more information on this source, please visit PolyScience.

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