Ultra-Low Refrigerated - Heating Circulators - TopTech Series

Category Stirred/Circulating Baths Accessories
Manufacturer Julabo

JULABO Ultra-Low Refrigerated & Heating Circulators Series are suitable for working temperatures from -91°C to +200°C. The units are suitable for external temperature applications with simultaneous operation in the bath tank. The units provide particularly high heating and cooling capacities for rapid heat-up and cool-down times even for large volume, external systems. FP models offer proportional cooling control to ensure energy-saving performance and to reduce heat generation to the environment. Models with the designation W are water-cooled. The units are equipped with handles or castors for an easy transportation. With drain port for conveniently draining the bath fluid. The units offer an improved insulation to prevent ice-formation and have a filling level display. Typical applications: Temperature applications to jacketed reaction vessels, autoclaves, miniplant installations, kilo labs, freezing point determination, calibration at low temperatures, petroleum testing, etc.

TopTech Series:

FP89-ME, an upper middle class model with ext. Pt100 sensor connection and with 2-stage cascade-cooling.


  • Keypad for setpoints, warning/safety values and menu functions
  • PID3 cascade temperature control
  • ATC3 3-Point-Calibration
  • Pt100 External sensor connection for measurement and control
  • SMART PUMP, electronically adjustable pump stages
  • Early warning system for low liquid level (DBGM 203 06 059.8)
  • Adjustable high temperature cut-out, visible via display
  • RS232 interface for online communication
  • Integrated programmer for 10 program steps
  • Active Cooling Control




A perfect view
Ample, easy to read VFD Comfort display for simultaneous display of 3 values, warning functions, high temperature cut-off, pump stages (resolution 0.01 °C)

Pump stage and liquid level
Backlit indicator for selected pump stages and filling volume on Presto® PLUS, Magnum 91 & Forte HT


Comfortable and detailed
Comfortable keypad with additional menu functions for pump stages, calibration, control parameters, programmer, warnings, etc.

Temperature Control

For higher demands
PID Temperature control with drift compensation and adjustable parameters, improved temperature stability for external applications, temperature stability ±0.01 °C internal, <±0.1 °C external

Highest measuring accuracy
Absolute Temperature Calibration’ for manual compensation of a temperature difference, 3-point calibration

Refrigeration Technology

Consistent cooling capacity
Easily removable venting grid for quick and easy cleaning

100 % Cooling capacity
Active Cooling Control’ for cooling available throughout the entire working temperature range, fast cool-down even at higher temperatures

Technical Features

Clever pump system
Reliable and consistent pump capacity, electronically adjustable pump stages

Control from the external application
External Pt100 sensor connection for precise measurement and control directly in the external application

Serial connection
RS232 interface for PC connection, e.g. for data communication and recording of measured values

Easy program control
Integrated programmer for the execution of time and temperature dependant profiles, 1 temperature profile with 10 steps max., with real time clock

Warning & Safety Functions

Early warning system for low liquid level
Maximum safety for applications, optical and audible alarm, allows user to refill bath fluid before the unit shuts down

Early warning system for high/low temperature limits
Maximum safety for applications, optical and audible alarm, convertible to automated cut-off function

Enhanced protective functions 
Maximum safety, adjustable high temperature cut-off or dry-running protection, additional display of setpoints permits easy and precise adjustments

For flammable bath fluids
Classification III (FL) according to DIN 12876-1


Key Attributes
Type Stirred / Circulating Baths Accessories
Incubation Yes
Refrigeration Yes
Temp Range (°C) R -90 to 100
Capacity (L) 8
Brand Julabo
MaxFlow Rate (l/min) 22-26
Temp Stability (°C) ±0.02
Timer Yes
Alarms Yes
Digital or Mechanical Digital
Data connection Yes
Tank Material Stainless Steel
Sample Agitation No
Media Racks Available No
Warranty (years) 1
Weight (lb) 293
Width (in) 21.7
Depth (in) 23.6
Height (in) 35.4
Manufacturer Specifications
 Working temperature range (°C) -90...+100
Temperature stability (°C) ±0.02
Setting / display resolution 0.01
Integrated programmer 1x10 steps
Temperature Display VFD COMFORT DISPLAY
Heating capacity (kW) 1.3
Cooling capacity (Medium Ethanol) at 20°C (kW) 1
Pump capacity flow rate (l/min) 11-16
Pump capacity flow pressure (psi) 3.3-6.5
Bath opening / bath depth (W x L / D inch) 5.1 x 5.9 / 6.3
Filling volume (liters) 8
Ambient temperature 5...40 °C
Dimensions W x L x H (inch) 21.7 x 23.6 x 35.4
Weight (LBS) 293
Classification according to DIN12876-1 Classification III (FL) according to DIN 12876-1
Cooling of compressor Air
Power requirement V / Hz / A 230/60/16 Additional voltage versions available
Pump connections M16x1
Barbed fittings diameter (inner dia. / mm) 8 / 10
Digital interfaces RS232
Optional Profibus
External Pt100 sensor connection Integrated

Do the Julabo Circulators have the capability to ramp up temperature over a set time period?

The TopTech circulators can be programmed to ramp. The best way to accomplish this is to use the free version of Julabo's EasyTEMP software. EasyTEMP provides a PC interface to create a temperature profile which is much easier than programming directly circulator. The TopTech RS232 port enables connection to a PC using a null modem cable.


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Ultra-Low Refrigerated - Heating Circulators - TopTech Series Accessories