Hanuo GX-2030 High-Temperature Circulating Bath
| Brand | Hanuo |
|---|---|
| Origin | Shanghai, China |
| Model | GX-2030 |
| Bath Volume | 30 L |
| Temperature Range | Ambient to 300 °C |
| Temperature Stability | ±0.02 °C |
| Circulation Type | External |
| Pump Flow Rate | 15 L/min |
| Compliance | CE-marked design per IEC 61010-1 for laboratory use |
Overview
The Hanuo GX-2030 High-Temperature Circulating Bath is an engineered thermal management system designed for precise, stable, and reliable external temperature control in demanding laboratory and pilot-scale applications. Operating on the principle of forced convection via a high-flow external circulation pump, it delivers uniform thermal energy transfer to externally connected equipment—including jacketed reactors, distillation columns, calorimeters, and semiconductor process fixtures. Unlike standard water baths, the GX-2030 accommodates both silicone oil and heat-transfer fluids (e.g., Dowtherm A, Therminol VP-1), enabling sustained operation up to 300 °C without evaporation or degradation concerns. Its all-stainless-steel bath chamber (400 × 330 × 230 mm) and integrated PID-controlled heating assembly ensure minimal thermal lag and exceptional setpoint fidelity—critical for exothermic reaction monitoring, kinetic studies, and materials testing under controlled thermal stress.
Key Features
- Microprocessor-based digital controller with dual LED display: simultaneous readout of actual bath temperature and user-defined setpoint (resolution: 0.1 °C)
- High-capacity external circulation pump delivering up to 15 L/min at low backpressure—optimized for integration with reactor jackets ≥50 mm ID
- Stainless steel working bath (30 L capacity) with corrosion-resistant construction and reinforced thermal insulation for reduced ambient heat loss
- Temperature stability of ±0.02 °C at setpoints between 150–300 °C, verified per ISO/IEC 17025-accredited calibration procedures
- Touch-sensitive membrane keypad with intuitive navigation; programmable ramp-soak profiles (optional firmware upgrade)
- Over-temperature cut-off, dry-run protection, and ground-fault circuit interruption (GFCI) compliant with IEC 61010-1 safety requirements
Sample Compatibility & Compliance
The GX-2030 supports compatibility with a broad range of heat-transfer media—including deionized water (≤95 °C), glycol-water mixtures (≤120 °C), and synthetic heat-transfer oils (up to 300 °C). Its sealed bath architecture prevents fluid oxidation and minimizes maintenance intervals. The unit conforms to key international standards for laboratory equipment: electromagnetic compatibility (EMC) per EN 61326-1, electrical safety per EN 61010-1, and RoHS 2011/65/EU material restrictions. While not certified for GMP environments out-of-the-box, its logging-capable controller (with optional RS485/Modbus RTU interface) supports audit-ready data capture aligned with GLP documentation practices and FDA 21 CFR Part 11 principles when paired with validated third-party software.
Software & Data Management
The GX-2030 operates as a standalone instrument with embedded firmware supporting real-time temperature logging to internal memory (up to 10,000 data points, timestamped at 1-second intervals). Optional communication modules enable bidirectional integration with LabVIEW, MATLAB, or SCADA platforms via Modbus RTU over RS485. All temperature records include metadata (setpoint, measured value, deviation, pump status, alarm flags), facilitating traceability in quality-critical workflows. Firmware updates are delivered via USB flash drive and include enhanced security protocols to prevent unauthorized configuration changes—a requirement for regulated QC laboratories conducting ASTM E2877 (Standard Guide for Thermal Stability Testing) or ISO 11357-3 (DSC calibration verification).
Applications
- Temperature control of jacketed glass reactors during high-boiling-point solvent synthesis (e.g., Friedel-Crafts acylation, esterification above 200 °C)
- Thermal conditioning of optical components and photolithography masks in semiconductor R&D
- Calibration reference source for platinum resistance thermometers (PRTs) and thermocouples per ISO/IEC 17025 Clause 6.4
- Supporting ASTM D2878 (viscosity-temperature profiling of polymer melts) using external capillary viscometers
- Accelerated aging studies per IEC 60068-2-14 (thermal cycling) when combined with programmable environmental chambers
- Process validation of sterilization cycles where precise thermal ramp rates must be documented and repeated
FAQ
What heat-transfer fluids are recommended for continuous operation at 280 °C?
Synthetic aromatic heat-transfer oils meeting DIN 51522 or ASTM D6722 specifications—such as Marlotherm SH or Globaltherm OM—are validated for 5,000+ hours at this temperature.
Can the GX-2030 be integrated into a PLC-controlled pilot plant?
Yes—via optional RS485 Modbus RTU interface (addressable node ID, configurable baud rate), enabling remote start/stop, setpoint adjustment, and fault reporting.
Is the bath volume fully usable for submersion of large sensors or probes?
The effective immersion depth is 230 mm; probes exceeding this length require custom mounting brackets to avoid contact with the heater element.
Does the unit support cooling functionality?
No—the GX-2030 is heating-only. For active cooling, Hanuo offers the GX-CW series chiller-coupled variants or recommends external recirculating chillers rated for inlet temperatures up to 80 °C.
How often should calibration verification be performed?
Per ISO/IEC 17025, annual verification against a NIST-traceable PRT is recommended; more frequent checks (e.g., quarterly) are advised for GLP-regulated applications involving critical temperature thresholds.
