People use our liquid temperature control equipment to heat and cool materials, objects, and substances. Laboratories and industries use JULABO USA temperature control units (TCUs) to reach, maintain, and replicate specific temperature set points. For instance, a set point of -20°C will keep the object, substance, or material at that temperature.
JULABO USA offers a variety of temperature control units (TCUs) in the form of refrigerated circulators, heating circulators, heating immersion circulators, recirculating chillers, industrial chillers, water baths, and immersion coolers. The type of TCU you need depends on your application and what you want to heat or cool.
When deciding on a TCU, you should consider its various specifications and how they will affect your application or process. This document will explain basic temperature measurement specifications and what to consider when selecting a circulator, chiller, cooler, or water bath for your facility.
Working Temperature Range
The working temperature range indicates the safe operating temperature range for the TCU, including the maximum operating temperature. To fully understand the usable temperature range for a unit, you should also consider the bath fluid. The type of bath fluid used can decrease the functional temperature range. It’s important to take into consideration the fluid’s flashpoint or boiling temperature at high temperatures and its viscosity and freezing point at low temperatures.
Temperature accuracy is the deviation between a measured temperature value and its actual temperature value. This measurement indicates the TCU’s accuracy and how closely the temperature value aligns with international, standard values.
Temperature stability is the maximum deviation from a standard temperature value over time. This measurement demonstrates how well the circulator will maintain its set point. JULABO TCUs offer stabilities of +/- 0.01°C to +/- 0.03°C.
Temperature uniformity is the maximum difference in temperature at different measuring points in the bath. It’s calculated by using the highest mean value minus the lowest mean value. Temperature uniformity specifications are based on standards and can vary depending on operating conditions. Temperature uniformity is an essential measurement for calibration tasks. In JULABO circulators, the temperature uniformity differs only slightly from temperature stability. Our calibration baths offer the best temperature uniformity.
While you won’t find the ambient temperature range listed on our specification data, it is an important consideration when choosing the proper chiller, circulator, cooler, or water bath for your laboratory or facility. Ambient conditions, including room temperature and relative humidity, can impact the performance of your TCU. Ideal ambient conditions for our TCUs are based on a standard of 20°C and 50% relative humidity. Refrigerated units perform optimally in conditions with lower temperatures and lower humidity. To ensure the incident-free operation of a refrigerated TCU, the temperature shouldn’t drop below 5°C or rise above 40°C.
Conclusion & Other Considerations
There are many other specifications to consider when choosing the right TCU for your needs, including its heating and cooling capacities, power options, electrical requirements, pump capacity flow pressure, pump capacity flow rate, weight, dimensions, and other factors. For a deeper dive into temperature control terms and what they mean, check out our handy glossary on the JULABO.US resource page.
Selecting the right TCU for your application requires thoughtful consideration and advanced calculations. JULABO USA offers consultative advice from account managers and our in-house application scientist. Start a conversation and let them guide you to the best temperature control solution for your business. Or, get started on your own by downloading our JULABO.us app at the Apple Store or Google Play.