JULABO HighTech CF31 Cryo-Compact Circulators
Image SKU Description Filling Volume Temperature Range Temperature Stability Electrical Quantity Price Add to Cart
9400331.2 HighTech CF31 Cryo-Compact Circulator 3.5 L -30 to 200°C +/-0.02°C 115V/60Hz 1 Each
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The top class for demanding applications of all types.

Cryo-Compact Circulator for internal and external temperature applications.

The CF series offers compact refrigerated/heating circulators. With small overall dimensions the units can even be placed on a very small surface or within a complex installation. All models offer a heating capacity of 2 kW and classification 3 according to DIN12876-1. The maximum ambient temperature of +40°C as well as a ventilation air cooling allow installing the units very closely side by side with other units or directly under a fume hood. Furthermore all the models feature pump connections for external temperature applications and a bath opening for temperature control of small objects directly in the circulator bath. Wetted parts are made of high quality stainless steel or plastic. The instruments provide a reliable Microprocessor electronics with high temperature stability as well as warning and safety functions.

Your advantages

  • Ergonomic design and easy operation
  • Small overall dimensions for lowest space requirement
  • Splash-proof keypad
  • Bright VFD display and interactive LCD dialog display
  • Highly precise ICC cascade temperature control
  • RS232/RS485 interface for PC connection
  • Electronically adjustable pump stages
  • External Pt100 sensor connection
  • Integrated programmer with 6x60 program steps
  • Early warning system for low liquid level
  • 3-point calibration
  • TCF Temperature Control Features
  • Adjustable high temperature cut-off
  • Classification 3 according to DIN12876-1
  • Pump connections for external temperature applications
  • Bath opening for temperature control of small objects in the bath
  • Front drain


Part # 9400331
Model series HighTech CF31
Category Cryo-Compact Circulators
Working Temperature Range -30 to +200 °C
Temperature Stability +/-0.02 °C
Setting / Display Resolution 0.01 °C
Integrated programmer 6x60 steps
Temperature Display VFD, LCD
Heating Capacity 1 kW
Cooling Capacity (Medium Ethanol) @ 20°C 0.32 kW
Cooling capacity (Medium Ethanol) @ 0°C 0.25 kW
Cooling capacity (Medium Ethanol) @ -20°C 0.15 kW
Pump Capacity Flow Rate 22-26 L/min
Pump Capacity Flow Pressure 5.8-10.2 psi
Pump Capacity Flow Suction 2.9-5.8 psi
Bath Opening / Bath Depth 6.3" W x 1.2" L / 5.5" D
Pump Connections M16x1
Barbed Fittings Diameter 8 mm ID / 12 mm OD
Filling Volume 3.5 Liters
External Pt100 Sensor Connection Integrated
Digital Interfaces RS232, RS485
Ambient temperature 5 to 40 °C
Dimensions 9.4" W x 18.1" L x 15.7" H
Weight 79 lbs
Classification According to DIN12876-1 Classification III (FL)
Included with each unit 2 each barbed fittings for tubing 8 and 12 mm inner dia. (pump connections M16x1 female).
Cooling of Compressor Air
Power Requirements 115V / 60Hz / 14A


Part Number
9400331 Product Data Sheet

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