Thermo Scientific Haake A45HC/AC200 Refrigerated/Heated Circulator
The Thermo Scientific Haake A45HC/AC200 Refrigerated/Heated Circulator is a high-performance laboratory temperature-control system designed for demanding heating, refrigeration, and external circulation applications. Combining the Thermo Scientific ARCTIC A45HC refrigerated bath with the advanced AC200 digital controller, this system provides a broad -45°C to +200°C operating range, approximately 900 W of cooling capacity at +20°C, and a powerful circulation system capable of delivering up to 24 L/min.
The A45HC is particularly well suited for laboratories requiring lower operating temperatures than conventional refrigerated circulating baths. Its integrated heating and refrigeration systems allow precise temperature control for chemical synthesis, materials testing, analytical instrumentation, reactor temperature regulation, and other laboratory procedures requiring both subzero and elevated-temperature operation.
Available used and refurbished from American Instrument Exchange, this Thermo Scientific Haake A45HC/AC200 is inspected and tested for heating, refrigeration, circulation, temperature regulation, and overall operating performance. A 90-day warranty is included.
Key Features
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Broad -45°C to +200°C operating temperature range
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Thermo Scientific AC200 advanced digital temperature controller
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Approximately 900 W cooling capacity at +20°C
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7–12 L working bath volume
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Maximum circulation flow approximately 24 L/min
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Maximum pump pressure approximately 560 mbar / 8.1 psi
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Force and suction circulation pump for internal and external applications
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Stainless-steel refrigerated bath
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Integrated heating and mechanical refrigeration
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Microprocessor-controlled temperature regulation
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Programmable temperature profiles and ramping capabilities
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Digital temperature display
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USB and RS232 communication interfaces
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R290 hydrocarbon refrigeration system
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Low-liquid and over-temperature safety protection
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Refurbished and tested by American Instrument Exchange
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90-day warranty included
Overview
The Thermo Scientific Haake A45HC/AC200 combines a powerful refrigeration system with the advanced temperature-control capabilities of the AC200 controller.
Unlike standard refrigerated circulating baths that typically operate to approximately -10°C or -25°C, the A45HC can achieve temperatures as low as -45°C. This extended low-temperature capability makes it especially valuable for research and industrial laboratories conducting subzero experiments, temperature-dependent chemical reactions, and materials testing.
The AC200 controller provides precise digital temperature regulation and advanced programming capabilities, allowing users to establish temperature setpoints and controlled heating or cooling profiles.
The stainless-steel bath provides approximately 7–12 L of working fluid volume. Compatible samples, vessels, sensors, and test components can be placed directly into the temperature-controlled bath.
The system also supports external circulation through compatible laboratory equipment. Temperature-controlled fluid can be circulated through jacketed reactors, condensers, heat exchangers, analytical instruments, and other closed-loop applications.
The A45HC's combination of low-temperature refrigeration, elevated-temperature heating, and advanced controller functionality makes it a versatile alternative to maintaining separate heating and cooling systems.
Key Specifications
| Specification |
Details |
| Manufacturer |
Thermo Scientific / Haake |
| Series |
ARCTIC |
| Bath Model |
A45HC |
| Controller |
AC200 |
| Configuration |
A45HC/AC200 |
| Equipment Type |
Refrigerated/heated circulating bath |
| Temperature Range |
-45°C to +200°C |
| Temperature Control |
Advanced digital microprocessor |
| Bath Working Volume |
7–12 L / 1.8–3.2 gal |
| Cooling Capacity at +20°C |
Approx. 900 W |
| Maximum Pump Flow |
Approx. 24 L/min |
| Maximum Pump Pressure |
Approx. 560 mbar / 8.1 psi |
| Maximum Suction Flow |
Approx. 20 L/min |
| Pump Type |
Force/suction circulation pump |
| Heating Capacity |
Approx. 1,200 W for 115 V configuration |
| Reservoir Construction |
Stainless steel |
| Internal Circulation |
Yes |
| External Circulation |
Yes |
| Refrigerant |
R290 |
| Controller Interface |
Digital display |
| Communications |
USB and RS232 |
| Working Area |
Approx. 8.0"D × 6.8"W × 7.2"L |
| Exterior Dimensions |
Approx. 15.2"W × 22.8"D × 31.0"H |
| Approximate Net Weight |
115 lb / 52.2 kg |
| Electrical Requirements |
Available in 115 V/60 Hz and 230 V/50 Hz configurations; verify unit nameplate |
| Condition |
Used and refurbished |
| Warranty |
90 days |
Specifications compiled from Thermo Scientific manufacturer documentation and American Instrument Exchange product information. Electrical configuration and installed accessories should be verified for the individual unit.
Common Applications
The Thermo Scientific Haake A45HC/AC200 is designed for laboratory applications requiring precise temperature control across an exceptionally broad operating range. Common uses include chemical synthesis, jacketed reactor temperature regulation, materials testing, viscosity measurements, sample conditioning, crystallization studies, condenser cooling, analytical instrument temperature control, and process development.
Its -45°C minimum operating temperature makes it particularly useful for low-temperature chemistry and experimental procedures requiring subzero thermal conditions.
For direct-bath applications, compatible laboratory vessels, samples, probes, and test components can be immersed in the stainless-steel reservoir. Continuous circulation helps distribute thermal energy throughout the bath.
For external applications, temperature-controlled fluid can be circulated through jacketed reaction vessels, condensers, and other compatible laboratory equipment.
The AC200 controller's programmable temperature-control capabilities are particularly useful for applications requiring controlled temperature changes, repeatable thermal profiles, or extended experimental procedures.
Ideal Laboratory Types
The Thermo Scientific Haake A45HC/AC200 is well suited for pharmaceutical research laboratories, biotechnology facilities, organic and synthetic chemistry laboratories, materials-science departments, analytical laboratories, industrial research facilities, process-development groups, quality-control laboratories, and academic research institutions.
Laboratories performing low-temperature chemical reactions or materials testing may find the A45HC especially useful because of its ability to operate substantially below the temperature limits of conventional refrigerated baths.
Its advanced controller also makes it appropriate for facilities conducting repeatable thermal experiments or procedures requiring programmed temperature changes.
Performance & Temperature Stability
The Thermo Scientific Haake A45HC/AC200 provides controlled heating and refrigeration across a -45°C to +200°C temperature range.
The integrated refrigeration system provides approximately 900 W of cooling capacity at +20°C. Available cooling capacity decreases as operating temperature approaches the lower end of the system's range.
Consequently, the maximum 900 W rating should not be interpreted as the available cooling capacity at -45°C. Laboratories with significant continuous heat loads should evaluate refrigeration performance at their intended operating temperature.
The AC200 controller uses advanced digital temperature regulation to manage heating, refrigeration, and circulation. Its programming capabilities allow users to establish temperature profiles appropriate for experimental procedures requiring controlled temperature changes.
The stainless-steel reservoir and integrated circulation pump work together to distribute temperature-controlled fluid throughout the bath, helping reduce thermal gradients and improve temperature consistency.
For applications approaching either end of the temperature range, the correct heat-transfer fluid is essential. Water alone is unsuitable for the complete -45°C to +200°C range.
Circulation & Pump Performance
The A45HC/AC200 features a force/suction circulation pump designed to support both internal bath circulation and external temperature-control applications.
The pump provides maximum pressure-side flow of approximately 24 L/min, maximum suction-side flow of approximately 20 L/min, and maximum discharge pressure of approximately 560 mbar.
This circulation capability allows the A45HC to supply conditioned fluid to compatible jacketed vessels, condensers, analytical instruments, and other laboratory equipment.
Actual flow through an external system will depend on tubing diameter, hose length, fittings, fluid viscosity, operating temperature, and hydraulic resistance.
When selecting the A45HC for external temperature control, laboratories should compare both the required thermal load and the hydraulic requirements of the connected equipment with the circulator's capabilities.
Refurbishment & Testing
This used Thermo Scientific Haake A45HC/AC200 Refrigerated/Heated Circulator is refurbished and tested by American Instrument Exchange before shipment.
Our technicians inspect the refrigeration system, compressor, condenser, heating elements, circulation pump, stainless-steel reservoir, AC200 controller, display, temperature sensor, fluid connections, electrical components, and applicable safety systems.
Temperature-controlled equipment is tested using NIST-traceable probes and data loggers. The A45HC/AC200 can be operated at multiple temperatures to evaluate refrigeration performance, heating capability, circulation, controller response, and temperature regulation.
The reservoir and accessible fluid-contact components are cleaned and inspected before shipment.
Customers purchasing the A45HC for a specific low-temperature application, jacketed reactor, or external circulation system are encouraged to provide their operating requirements before shipment. When practical, American Instrument Exchange can incorporate customer-requested operating conditions into final testing.
A 90-day warranty is included.
Shipping & Installation
The Thermo Scientific Haake A45HC/AC200 weighs approximately 115 lb and should be transported with the bath drained and the refrigeration system properly protected. American Instrument Exchange prepares the unit for commercial shipment with appropriate protection for the controller, compressor, refrigeration components, stainless-steel reservoir, housing, and fluid connections.
The A45HC uses R290 refrigerant, a flammable hydrocarbon refrigerant. Installation, handling, and service should follow the manufacturer's safety requirements, including precautions regarding ignition sources and ventilation.
The unit should be installed on a stable, level surface with adequate airflow around the refrigeration system.
After installation, the reservoir should be filled with an appropriate heat-transfer fluid selected for the intended operating temperature. Particular attention should be paid to fluid compatibility for applications below 0°C or above 100°C.
External circulation tubing should be rated for the intended temperature and pressure and securely connected before operation.
Electrical requirements should be confirmed against the individual unit's nameplate before connecting power.
Related Equipment
American Instrument Exchange stocks a wide selection of laboratory circulators, including Thermo Scientific Haake refrigerated/heated circulators, recirculating chillers, immersion circulators, and heated circulating baths.
Laboratories considering the A45HC/AC200 may also want to compare available laboratory water baths, reactors and fermenters, and evaporators and extractors for complementary temperature-control and laboratory processing applications.
Thermo Scientific Haake A45HC/AC200 Frequently Asked Questions
What is the temperature range of the Thermo Scientific A45HC/AC200?
The Thermo Scientific Haake A45HC with AC200 controller provides an operating temperature range of approximately -45°C to +200°C.
What is the cooling capacity of the A45HC?
Thermo Scientific specifies approximately 900 W of cooling capacity at +20°C. Available cooling capacity varies with operating temperature and heat load.
What is the bath capacity of the A45HC?
The A45HC provides approximately 7–12 L of working bath volume.
What controller does the Thermo A45HC use?
This configuration includes the Thermo Scientific AC200 advanced digital temperature controller, which provides programmable temperature regulation and communication capabilities.
What is the difference between the AC150 and AC200 controllers?
The AC200 provides a higher maximum operating temperature and more advanced programming capabilities. The A45HC is specifically supported with the AC200 controller for operation from -45°C to +200°C.
Can the A45HC be used for low-temperature chemical reactions?
Yes. The -45°C minimum operating temperature makes the A45HC suitable for compatible low-temperature chemistry applications, provided the system's cooling capacity and circulation performance meet the process requirements.
Can the A45HC circulate fluid through a jacketed reactor?
Yes. The system supports external circulation and can provide temperature-controlled fluid to compatible jacketed reactors and other laboratory equipment.
What is the maximum pump flow rate?
The AC200 circulation system provides maximum pressure-side flow of approximately 24 L/min.
What is the maximum pump pressure?
Maximum pump pressure is approximately 560 mbar, equivalent to approximately 8.1 psi.
Does the A45HC provide both heating and cooling?
Yes. The A45HC combines integrated mechanical refrigeration with an electric heater, allowing operation across a broad temperature range.
Can samples be placed directly into the A45HC bath?
Yes. The stainless-steel reservoir provides direct bath access for compatible samples, vessels, probes, and test components.
What refrigerant does the Thermo A45HC use?
The A45HC uses R290 hydrocarbon refrigerant. Appropriate safety precautions must be followed during installation, operation, and service.
Can the A45HC operate at -45°C while removing a continuous 900 W heat load?
Not necessarily. The 900 W cooling rating applies at +20°C. Cooling capacity decreases at lower temperatures, so the actual available capacity at -45°C is substantially lower.
What are the dimensions of the Thermo Scientific A45HC?
The A45HC measures approximately 15.2 inches wide × 22.8 inches deep × 31 inches high and weighs approximately 115 lb.
Does this refurbished Thermo Scientific A45HC/AC200 include a warranty?
Yes. This used Thermo Scientific Haake A45HC/AC200 is refurbished and tested by American Instrument Exchange and includes a 90-day warranty.
