Across International Julabo PRESTO A85t -85C 250C 7L Dynamic Temperature Control

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Reactor temperature control, tests for all kinds of substances or temperature simulation the new PRESTO are made for highly precise temperature control and rapid temperature changes. PRESTO provide large heating and cooling capacities covering a working temperature range from -92 C to +250 C. Highly efficient components allow extremely fast compensation of exothermic and endothermic reactions.

Lab users benefit from high flow rates, constant pressure, and a controlled build-up of pump pressure. Changes in the temperature-control liquids viscosity are balanced dynamically. Permanent internal monitoring and self-lubricating pumps contribute to the new PRESTOs long service life.

A special feature of the new PRESTO is the integrated 5.7 industrial touch screen. All important information is displayed clearly and concisely enhancing ease of use considerably. The new PRESTO can be operated intuitively with the tip of your finger. As the new PRESTO operate whisper quiet, you will hardly hear them in your laboratory. Even high room temperatures of up to +40 C will not make the new PRESTO sweat. Maintenance-free pumps and drives guarantee operational readiness.

Multiple interfaces permit remote control of the PRESTO across networks and in superordinated control systems. The Design does away with venting slots at the sides. The required installation space is reduced to an absolute minimum.

A85t features

  • For highly precise, external temperature applications
  • Rapid heating and cooling
  • Fast compensation of exothermic reaction
  • Wide working temperature ranges without changing fluids
  • Highest performance with small footprint
  • Space-saving design optimizes space utilization in your lab
  • NEW 5,7” industrial color TFT touch screen
  • well-organized view of important information with unmatched, intuitive user friendliness
  • Up to 3 user level with password management
  • NEW USB (Host und Device), new Ethernet, new SD-Card slot
  • RS232 / optional RS485 / optional Profibus DP
  • Stand-by input
  • Filling system accessible from the top
  • Easily removable venting grid

Julabo A85t Ai reactor package with adapters, tubing

  • P/N 8890083 x 1. Pair, M30x1.5 f to NPT 3/4" male adapter
  • P/N 8891721 x 1. Pair, 90° elbow, M30x1.5 m/f
  • P/N 8891711 x 2. M30x1.5 m/m adapter
  • P/N 8930272 x 2. 1.5m triple insulated tubing, M30x1.5 f

Julabo A85t Ai reactor package with adapters, tubing, and fluid

  • P/N 8890083 x 1. Pair, M30x1.5 f to NPT 3/4" male adapter
  • P/N 8891721 x 1. Pair, 90° elbow, M30x1.5 m/f
  • P/N 8891711 x 2. M30x1.5 m/m adapter
  • P/N 8930272 x 2. 1.5m triple insulated tubing, M30x1.5 f
  • P/N 8891414 x 4. 10L, Thermal P90, -90…+170 °C in PRESTO



Julabo history


Dimensions and volumes

(W × L × H)
24 x 42.5 x 49.2 in.
Internal usable expansion volume 7 l
Minimal process volume 9.5 l
Active heat exchanger volume 5 l
Weight 804.7 lbs
Pump connections M30x1.5 male


Temperature Values

Working temperature range -85 ... +250 °C
Temperature stability ±0.05 ... ±0.1 °C
Setting the resolution of the temperature display 0.01 °C
Temperature display resolution 0.01 °C
Ambient temperature +5 ... +40 °C


Medium: Ethanol

°C 200 20 0 -20 -30 -40 -60 -80
kW* 2.8 2.5 2.4 2.4 2.4 2.4 2.2 0.4


Refrigerant Information Refrigerant stage 1 Refrigerant stage 2
Refrigerant R507 R23
Global Warming Potential 3985 14800
Filling volume 1600 g 680 g
Carbon dioxide equivalent 6.376 t 10.064 t

Performance specifications measured in accordance with DIN12876. Cooling capacities up to 20 °C measured with ethanol; over 20 °C with thermal oil unless otherwise specified. Performance specifications apply at an ambient temperature of 20 °C. Performance values may differ with other bath fluids.



Digital interface Alarm output / Ethernet / Modbus / Profibus optional / RS232 / RS485 optional / Reg/Eprog optional / SD memory card / Standby-Input optional / USB
External pt100 sensor connection integrated
2nd external Pt100 sensor connection accessory
Integrated programmer 8x60 steps
Temperature control ICC
Absolute temperature calibration 3 Point Calibration
Temperature displayTemperature display 5.7" TFT Touchscreen
Temperature settingTemperature setting Touchscreen


Standard Packages
Standard package


 Part description


Part image

Julabo PRESTO A85t -85C 250C 7L Dynamic Temperature Control 1 pc

M30x 1.5 Plugs and Nuts 4 pc

User's Manual 2 pc

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