Highly Dynamic Temperature Control

Julabo’s (Germany) new Presto® represents an entirely new generation of highly dynamic temperature control systems. The new Presto® systems are designed for precise temperature control as well as rapid temperature changes, making them ideal for reactor vessels, material stress tests, or temperature simulations.

The new Presto® from Julabo represents the state-of-the-art for modern laboratories. The first models in this redesigned line of temperature-control instruments are the air-cooled A30 and A40 as well as the water-cooled W40. These instruments cover a working temperature range of -40 to +250 °C with 1.2 kW of cooling capacity and 2.8 kW of heating capacity. Maximum heating capacity can also be adapted to fluctuations in the mains power supply. Highly efficient components give these instruments the ability to compensate for exothermic and endothermic reactions with extraordinary speed. The new Presto® units are extremely robust and work reliably even if the ambient temperature climbs as high as +40 °C. The integrated cooling machine and an internal, cooled expansion vessel absorb volume changes in the heat exchanger.

Magnetically-coupled pumps in the Presto® units are powerful and maintenance-free. Lab users benefit from high flow rates, constant pressure, and a controlled build-up of pump pressure. Changes in the temperature-control liquid’s viscosity are balanced dynamically. Permanent internal monitoring and self-lubricating pumps contribute to the new Presto®’s long service life. The pump in the A30 has a rated pressure of 0.5 bar and a maximum flow rate of 20 Lpm. The A40 and W40 have more powerful pumps with pressure up to 1.7 bar and a flow rate as high as 40 Lpm. The operator can adjust pump capacity by selecting one of five stages or by entering a specific pressure. Once entered, the pressure value will be maintained throughout the entire process.

The closed pumping loop isolates the heat transfer liquid from ambient air, preventing penetration of moisture and oxidation. At the same time, this design ensures that the new Presto® will not emit oil vapour.

The integrated 5.7-inch industrial-grade touch panel is one of the identifying characteristics of the new Presto®. It gives the user a clear and well-organised view of important information while greatly improving user-friendliness. Fingertip control via the new touchscreen makes it incredibly easy to operate the new Presto® units, whilst International users can choose from eight different languages.