F81-ME Ultra-low refrigerated / heating circulator
Ultra-low refrigerated circulator with 2-stage cascade-cooling
The ultra-low refrigerated circulators of the TopTech series are equipped with a dual-stage cascade refrigeration system for continuous operation of internal and external temperature applications.
Models with ME circulator
- Heated bath cover plate to prevent condensation or ice build-up
- Pressure pump up to 0.45 bar, electronically adjustable in steps
- ACC Active Cooling Control across the entire temperature range
- Compact design Note: FP models feature an energy-saving proportional cooling control.
F81-ME Benefits

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

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.

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

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