Refrigerated/Heating Circulator for Routine Laboratory Use

JULABO’s F12-ED refrigerated/heating circulators are for heating and cooling are suitable for external temperature tasks and for temperature applications directly in the bath. These instruments are used for several routine laboratory applications. Powerful circulating pump systems and high heating and cooling capacities ensure short cool-down and heat-up times.

An easily removable venting grill enables easy cleaning of the refrigeration system. Based on the model, the components are fitted with castors or handles for easy transportation.

All models are provided with a drain screw on the front, thereby allowing the fluid to drain out easily. The compact assembly of each component saves space in the laboratory.

Key Features

The main features of the F12-ED refrigerated/heating circulator are:

  • Bright LED temperature display with a resolution of 0.1°C
  • Modifiable high temperature cut-out / dry-running protection
  • PID1 temperature control
  • Keypad for setpoint, switches automatically to the actual value.


Working temperature range (°C) -20 - 100
Temperature control PID
Temperature stability (°C) ±0.03
Setting / display resolution 0.1 °C
Temperature Display LED
Heating capacity (kW) 1
Cooling capacity (Medium Ethanol)
°C 20 0 -20
kW 0.2 0.12 0.02
Pump capacity flow rate (l/min) 15
Pump capacity flow pressure (psi) 5.1
Bath opening / bath depth (W x L / D inch) 5.1 x 5.9 / 5.1
Pump connections M10x1
Barbed fittings diameter (inner dia. / mm) 8 / 10
Filling volume (liters) 4.5
Refrigerant R134a
Ambient temperature 5 - 40 °C
Dimensions W x L x H (inch) 7.9 x 14.2 x 22
Weight (LBS) 48
Classification according to DIN12876-1 Classification I (NFL) according to DIN 12876-1
Included with each unit 2 barbed fittings suitable for tubing 8 and 10 mm inner dia. (pump connections M10x1 female)
Cooling of compressor Air
Power requirement V / Hz / A 115/60/12 Additional voltage versions available

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