F81-ME

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Ultra-low Refrigerated Circulator with 2-stage cascade-cooling

JULABO Ultra-Low Refrigerated Circulators for heating and cooling are suitable for external temperature tasks. Powerful circulating pump systems and high heating and cooling capacities guarantee short heat-up and cool-down times. ACC ‘Active Cooling Control‘ provides active cooling control across the whole temperature range. An energy saving feature with only minor loss of heat is provided by the proportional cooling capacity control in the ‘FP’ refrigeration units. The inevitable dust accumulation that occurs in refrigeration systems is solved by means of an easily removed venting grill, which allows for easy cleaning. The units are equipped with handles or castors for an easy transportation. All models have a drain tap on the front allowing the fluid to be drained easily. Additionally the instruments are equipped with an improved insulation to help avoid ice-formation, and have a visual liquid level display.

 

Your advantages

  • VFD COMFORT DISPLAY
  • 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

 

Technical Data

 

Order No. 9162681
Model series TopTech
Category Ultra-Low Refrigerated-Heating Circulators
Working temperature range (°C) -81 ... 100
Temperature stability (°C) ± 0.02
Setting / display resolution 0.01°C
Integrated programmer 1x10 steps
Temperature Display VFD
Heating capacity (kW) 1.3
Cooling capacity (Medium Ethanol)
20 °C 0.45 kW
0 °C 0.38 kW
-20 °C 0.36 kW
-40 °C 0.32 kW
-60 °C 0.27 kW
-80 °C 0.07 kW
Pump capacity flow rate (l/min) 11-16
Pump capacity flow pressure (bar) 0.23 - 0.45
Bath opening / bath depth (W x L / D cm) 13x15/16
Pump connection M10x1
Barbed fittings diameter (inner dia. / mm) 8/10
Filling volume (liters) 6.5
Refrigerant R23 R404A
External Pt100 sensor connection integrated
Digital interfaces Optional profibus
Ambient temperature 5 ... 40 °C
Dimensions W x L x H (cm) 50 x 58 x 88
Weight (kg) 86
Classification according to DIN12876-1 Classification III (FL) according to DIN 12876-1
Cooling of compressor Air
Included with each unit 2 each barbed fittings for tubing 8 and 10 mm inner dia. (pump connections M10x1 female).

Characteristics

 

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.
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 TemperatureCalibration’ for manual compensation of a temperature difference, 3-point calibration
Clever pump system
Reliable and consistent pump capacity, electronically adjustable pump stages
Serial connection
RS232 interface for PC connection, e.g. for data communication and recording of measured values
Control from the external application
External Pt100 sensor connection for precise measurement and control directly in the external application
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
   
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
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

 

Other characteristics

 

Removable venting grid for convenient cleaning to maintain cooling performance.

 

 

Technical changes without prior notification. Images may deviate from the original.