F81-HL Ultra-Low Refrigerated Circulator Julabo 9 312 681

Julabo F81-HL 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.

Advantages
o VFD COMFORT DISPLAY
o LCD DIALOG DISPLAY backlit for convenient interactive operation
o Keypad for setpoints, warning/safety values and menu functions
o ICC (Intelligent Cascade Control), self-optimizing temperature control
o TCF Temperature Control Features to optimize the control behaviour
o ATC3 3-Point-Calibration
o Pt100 External sensor connection for measurement and control
o SMART PUMP, electronically adjustable pump stages
o Early warning system for low liquid level (DBGM 203 06 059.8)
o Adjustable high temperature cut-out, visible via display
o RS232/RS485 interface for online communication
o Integrated programmer for 6 x 60 program steps
o Connections for solenoid valve and HSP booster pump
o Active Cooling Control

Technical Specifications
Working temperature range -81 ... 100 °C
Temperature control ICC
Temperature stability ±0.02 °C
Display VFD + LCD
Display resolution 0.01 °C
Integrated programmer available
Heater capacity 1300 W
Cooling capacity 20 0 -20 -40 -60 -80 °C
450 380 360 320 270 70 W
Refrigerant R404A + R23
Pump capacity Pressure: 0,7 bar
Suction: 0,4 bar
Flow rate: 22-26 l/min
Digital interfaces RS232, RS485, optional Profibus
External Pt100 sensor connection available
Bath opening / bath depth (W x L / D) 13 x 15 / 16 cm
Filling volume 6.5 Liters
Dimensions (W x L x H) 50 x 58 x 89 cm
Weight 88 kg
Ambient temperature 5...40 °C
Classification according to DIN 12876-1 3 (FL)

Miscellaneous
Optional: Electronic module with analog connections for external programming, temperature recorder, standby, alarm (Order no. 8 900 100)