Peter Huber CC-308B Heating Bath Circulator

The Peter Huber CC-308B (Order No. 2006.0001.01) is a high-precision heating bath circulator designed for demanding thermoregulation tasks across a wide temperature spectrum. With a working range extending from +28°C to +300°C (and down to -20°C with external cooling), this unit is a versatile powerhouse for both internal and external applications. It features a robust 8.5-liter stainless steel bath and a powerful 2.0 kW heater. The CC-308B is equipped with the state-of-the-art Pilot ONE controller, offering a 5.7" touchscreen interface and advanced "Compatible Control" technology, making it the preferred choice for protecting sensitive glassware while maintaining extreme thermal stability.

Key Features:

• Wide Temperature Range: Standard operation from 28°C to 300°C; capabilities can be extended down to -20°C using an external cooling water supply or immersion cooler.
• Pilot ONE Controller: Features a high-resolution 5.7" multi-touch display, intuitive menu navigation, and an integrated technical glossary.
• Power Supply: Optimized for versatile laboratory integration with a 200-240V 1~/2~ 50/60Hz power requirement.
• VPC (Variable Pressure Control): Includes a continuously variable suction and pressure pump to optimize circulation. An optional pressure sensor can be used to prevent over-pressurizing fragile glass reactors.
• High Heating Power: A 2.0 kW heating system ensures rapid heat-up times and excellent stability even during endothermic reactions.
• Dual Functionality: Perfectly suited for thermoregulating externally connected applications or for tempering objects placed directly inside the insulated stainless steel bath.
• Safety and Reliability: Classified as Safety Class III/FL (DIN 12876) for use with flammable and non-flammable liquids. Includes over-temperature and low-level protection.
• Connectivity: Integrated Ethernet, USB, and RS232 interfaces for seamless data logging and laboratory automation.
• Construction: High-quality, corrosion-resistant stainless steel bath and housing for long-term industrial and laboratory use.

The CC-308B stands out for its "True Adaptive Control" (TAC) logic, which allows the controller to self-optimize for the best possible control results. Whether you are performing distillation, scale-up trials, or material testing, this heating circulator provides the reliability and precision required for professional process development.

Frequently Asked Questions

1. How does the CC-308B reach -20°C if it is a "Heating" circulator?
The unit features an integrated cooling coil. By connecting an external cooling source, such as tap water or a secondary chiller, the operating range can be extended below ambient temperatures down to -20°C.

2. Can I protect my external glass reactor from high pressure?
Yes. By using an optional pressure sensor and the Pilot ONE's VPC functionality, you can set a maximum pressure limit. The pump will automatically reduce speed to ensure your glassware never exceeds its pressure rating.

3. Does this unit require 3-phase power?
No. This model is specifically designed to operate on a 200-240V 1~/2~ 50/60Hz supply, making it compatible with most high-output single-phase laboratory outlets.

4. Is the pump speed adjustable?
Yes, the VPC pump is steplessly adjustable. This allows you to fine-tune the flow rate to match the viscosity of your thermal fluid and the resistance of your external application.

5. What thermal fluids are recommended for 300°C operation?
For high-temperature tasks up to 300°C, we recommend using Huber P20.275.50 SilOil or similar high-stability silicone fluids. Always ensure the fluid's fire point is well above your operating setpoint.