Xiatech C2150 High-Temperature Circulating Oil Bath

Overview

The Xiatech C2150 High-Temperature Circulating Oil Bath is a precision temperature control instrument engineered for laboratory and industrial applications requiring stable thermal environments from ambient +10 °C up to 200 °C. Unlike conventional water baths limited by boiling point and vapor pressure constraints, the C2150 utilizes thermally stable silicone or mineral oil as the heat transfer medium—enabling sustained operation at elevated temperatures with minimal evaporation and oxidation risk. Its core architecture integrates a high-efficiency heating system, dual-sensor feedback loop, and low-turbulence circulation pump to achieve ±0.05 °C temperature stability over extended periods—a critical performance benchmark for calibration labs, material property testing (e.g., viscosity, thermal expansion), and sensor validation workflows. The bath supports both internal immersion and external recirculation via a dedicated outlet/inlet port, allowing integration with external reactors, jacketed vessels, or calorimeters without compromising thermal uniformity.

Key Features

• Wide operational range: Continuous temperature control from ambient +10 °C to 200 °C using compatible high-flashpoint oils (e.g., Dow Corning 200 Fluid, Sigma-Aldrich Syltherm XLT)
• 15-liter working volume with optimized geometry (160×240 mm opening, 200 mm depth) ensuring uniform thermal distribution and sufficient immersion depth for large probes or multi-sensor arrays
• Dual-mode circulation: Independent internal stirring and external closed-loop recirculation (16 L/min flow rate, max. head 3.5 m) with adjustable flow control
• High-resolution thermal management: 0.001 °C display resolution coupled with PID algorithm tuning and real-time deviation compensation
• Integrated safety protocols: Over-temperature cutoff (hardware-independent), low-fluid-level detection with automatic heater shutdown, and ground-fault circuit interruption (GFCI) compliance
• USB 2.0 interface compliant with CDC ACM class drivers—enabling direct connection to Windows/Linux hosts without proprietary driver installation

Sample Compatibility & Compliance

The C2150 accommodates a broad spectrum of sample configurations including glass/steel immersion probes, PT100/PT1000 sensors, thermocouple reference junctions, viscometer spindles, and optical cells. Its stainless-steel inner tank (SUS304) resists corrosion from common heat-transfer fluids and facilitates cleaning per ISO 17025 traceability requirements. The unit conforms to IEC 61010-1:2010 (Safety Requirements for Electrical Equipment for Measurement, Control, and Laboratory Use) and meets electromagnetic compatibility standards per EN 61326-1:2013. While not intrinsically rated for hazardous locations, its design supports integration into GLP-compliant calibration systems where audit trails, user access logs, and parameter change history are maintained externally via host software.

Software & Data Management

Xiatech provides open-architecture communication protocols documented in the C2150 Programmer’s Manual (v3.2), supporting ASCII-based command sets for temperature setpoint adjustment, real-time data polling (T, dT/dt, status flags), and alarm configuration. Users may implement custom data acquisition using Python (pySerial), MATLAB Instrument Control Toolbox, or LabVIEW VISA drivers. Raw temperature readings are timestamped with millisecond precision and streamed at configurable intervals (100 ms–5 s). When paired with third-party platforms such as NI DIAdem or Keysight PathWave, the bath contributes validated thermal data to full-system uncertainty budgets—essential for ISO/IEC 17025 accredited laboratories performing thermometer calibration per ASTM E77 or ISO 5725-2.

Applications

• Calibration of resistance thermometers (RTDs), thermistors, and thermocouples across extended ranges per ITS-90 fixed points
• Thermal validation of differential scanning calorimeters (DSC) and thermogravimetric analyzers (TGA)
• Stabilization of optical components (e.g., laser diodes, interferometer stages) sensitive to thermal drift
• Viscosity measurement support for rotational rheometers operating above 100 °C (e.g., Anton Paar Physica MCR series)
• Accelerated aging studies of polymers, adhesives, and battery electrolytes under controlled thermal stress
• Reference environment generation for HVAC sensor testing and building energy simulation hardware-in-the-loop (HIL) setups

FAQ

What types of heat-transfer fluids are recommended for use with the C2150?
Silicone oils (e.g., Dow Corning 200 Fluid, viscosity grades 10–100 cSt) and synthetic hydrocarbon oils (e.g., Marlotherm SH, Syltherm XLT) are validated for continuous operation up to 200 °C. Water or glycol mixtures must not be used due to vapor pressure limitations and risk of catastrophic failure.
Does the C2150 support remote programming via Ethernet or RS232?
No—only USB 2.0 virtual COM port interface is provided. For network integration, users must deploy a USB-to-Ethernet server (e.g., Digi AnywhereUSB) with appropriate firewall and TLS configuration.
Can the unit maintain ±0.05 °C stability while circulating externally at full flow rate?
Yes—stability specification is verified under worst-case conditions: 15 L bath volume, 16 L/min external flow, ambient load variation ≤2 K/h, and thermal mass equivalent to 5 kg aluminum block immersed in the bath.
Is firmware upgrade capability available?
Firmware updates are distributed quarterly via Xiatech’s secure customer portal and require USB connection and administrator authentication. Version history and release notes comply with FDA 21 CFR Part 11 electronic record requirements.
What is the expected service life of the heating element under continuous 200 °C operation?
Based on accelerated life testing per IEC 60068-2-2, the tubular heating assembly demonstrates >12,000 hours MTBF when operated within specified fluid level and ventilation constraints (minimum 150 mm clearance on all sides).