Dynamic temperature control system / circulation thermostat

Huber Unistat 425 with Pilot ONE


The Unistat range inspires with unique thermodynamic properties and a range of functions to meet the highest demands. Unistat technology guarantees precise, reproducible temperature control results, the shortest possible heating and cooling times and large temperature ranges without the need for fluid change. All Unistats are fitted with the innovative Pilot ONE controller with a 5.7“ touchscreen colour display and easy menu navigation. All important parameters can be seen at a glance and temperature curves are displayed in graphic real time. Unistats are equipped with the most up-to-date pump technology for optimal heat transfer. The pump self regulates to ensure the best possible circulation and flow and delicate glass reactors are protected from breakage by the pumps soft start-up feature. Unistat technology impresses as a result of economic operation with reduced operating costs and efficient energy management. Because Unistats are hydraulically sealed, the service life of...

Product features

Temperature range -40...250 °C
Temperature stability ±0,01 °C
Temperature control TAC, self-optimizing (True Adaptive Control)
Display resolution 0,01 °C
Alarm message optical, acoustical
Controller Pilot ONE (E-grade "Professional")
Safety class III / FL
Protection class IP20
Dimensions (W x D x H) 460 x 554 x 1453 mm
Weight 155 kg
Heating capacity 2 kW
Cooling capacity 250 200 100 20 0 -20 -40 °C 2 2 2 2 2,5 1,8 0,2 kW
Cooling machine air-cooled
Refrigerant R507 (1,85 kg)
Pressure pump max. 105 l/min ; 1,5 bar
Pump connection M30x1,5 AG male
Permissible viscosity 50 mm²/s
Pt100 connection Pt100
Analogue input via optional Com.G@te
Analogue output via optional Com.G@te
Digital interface RS232, Ethernet, USB Device, USB Host
Permissible ambient temp. 5...40 °C
Noise level 64 dB(A)
Filling volume min. 3,6 Litres
Volume of expansion 3,3 Litres
Power supply 200V 3~ 50Hz (Heating capacity: 2 kW) 200V 3~ 60Hz (Heating capacity: 2 kW) 208V 3~ 60Hz (Heating ca
Current max. 10 A

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