Julabo CORIO CD-1000F Universal Heating and Cooling Circulating Bath

Overview

The Julabo CORIO CD-1000F is a high-precision, universal heating and cooling circulating bath engineered for demanding laboratory and industrial applications requiring stable, bidirectional temperature control across an exceptionally wide range. Utilizing a single-stage, air-cooled compressor with R452A refrigerant and a robust PID-controlled heating system, the CD-1000F delivers continuous thermal regulation from −40 °C to +150 °C—enabling operation in both cryogenic and high-temperature regimes without fluid exchange or hardware modification. Its thermally optimized stainless steel bath vessel, combined with a concealed coil design and integrated insulation, ensures minimal thermal loss and maximizes usable immersion volume (5–7.5 L). The unit operates under DIN 12876-1 Class III (FL) safety certification, confirming compliance with stringent requirements for flammable liquid handling—including vapor-tight construction, explosion-proof electrical components, and fail-safe overtemperature protection.

Key Features

• Wide operational temperature span: −40 °C to +150 °C with ±0.03 °C stability at setpoint, verified under steady-state conditions per ISO/IEC 17025 traceable calibration protocols.
• High-flow external circulation (15 L/min @ 0.35 bar) via M16×1 threaded port, supporting integration with jacketed reactors, viscometers, spectrophotometer cells, and custom heat exchangers.
• Intuitive white-backlit LCD interface with adjustable resolution (0.01 °C below 100 °C; 0.1 °C above), enabling precise setpoint definition and real-time monitoring of bath temperature, flow status, and system diagnostics.
• Acoustically optimized architecture: noise emission <45 dB(A) at 1 m distance, suitable for shared laboratory environments and QC suites where low ambient disturbance is mandated.
• Modular pump configuration with independent internal/external flow ratio adjustment—allowing simultaneous bath temperature maintenance and external loop delivery without compromising stability.
• Full-surface stainless steel bath with removable lid, drain valve, and dual-diameter hose fittings (8 mm and 12 mm) included as standard—facilitating rapid setup and fluid compatibility verification per USP and ISO 8573-1 cleanliness guidelines.
• USB communication port compliant with VCP (Virtual COM Port) protocol for seamless integration into LabVIEW, MATLAB, or LIMS-based automated workflows with timestamped data logging.

Sample Compatibility & Compliance

The CD-1000F accommodates aqueous, silicone oil, and synthetic heat transfer fluids rated for operation within its full temperature envelope. Its Class III (FL) certification per DIN 12876-1 confirms suitability for use with flammable liquids up to flash point 60 °C (e.g., ethanol, acetone, ethylene glycol/water blends), including containment integrity testing and vapor pressure management. All wetted surfaces are electropolished 316 stainless steel, ensuring resistance to corrosion from aggressive solvents and compatibility with GMP/GLP environments. The unit supports audit-ready operation: USB logs include operator ID, timestamp, setpoint history, alarm events, and thermal deviation records—fully traceable for FDA 21 CFR Part 11 compliance when paired with validated software.

Software & Data Management

Native USB connectivity enables direct acquisition of time-stamped temperature, flow rate, compressor duty cycle, and heater output via industry-standard serial commands (ASCII protocol). Data export is supported in CSV format for post-processing in Excel, Origin, or statistical process control (SPC) platforms. Optional Julabo Software Suite (v5.2+) adds multi-device synchronization, alarm escalation via email/SNMP, and electronic signature–enabled method locking—meeting ALCOA+ data integrity principles. All firmware updates are digitally signed and installed via secure USB media, preserving cryptographic chain-of-custody for regulated laboratories.

Applications

• Calibration of thermocouples, RTDs, and infrared sensors across extended ranges (−40 to +150 °C) per ASTM E230/E77.
• Temperature control of analytical instruments: HPLC column ovens, GC injectors, FTIR sample compartments, and differential scanning calorimeters (DSC).
• Material testing: polymer crystallization studies, elastomer modulus evaluation, and battery cell thermal cycling per IEC 62660-2.
• Biopharmaceutical process support: incubator validation, buffer temperature equilibration, and chromatography resin storage conditioning.
• Reaction calorimetry and kinetic profiling in jacketed glass reactors with real-time enthalpy calculation via external power meter integration.

FAQ

What fluids are compatible with the CD-1000F across its full temperature range?
Silicone oils (e.g., DC200 series), polyalphaolefins (PAOs), and certified low-volatility glycol/water mixtures are recommended. Fluid selection must comply with flash point, viscosity, and thermal stability specifications outlined in Julabo’s Fluid Compatibility Matrix (Doc. REF-CORIO-FLUID-2024).
Does the unit support remote monitoring via Ethernet or Wi-Fi?
No native Ethernet or Wi-Fi interface is provided; however, third-party USB-to-Ethernet servers with virtual COM port mapping may be deployed in validated networks—subject to local IT security review and network segmentation per ISO/IEC 27001.
Is the USB interface compatible with macOS and Linux systems?
Yes—the CDC ACM class-compliant USB interface functions with standard kernel drivers on macOS (12+) and most Linux distributions (kernel ≥5.4), requiring no proprietary drivers.
How is temperature uniformity validated within the bath chamber?
Uniformity is characterized using a 9-point NIST-traceable probe array per ASTM E1137, reporting ≤±0.05 °C deviation across the central 75% of the bath volume at any stable setpoint.
Can the CD-1000F operate continuously at −40 °C ambient temperature?
No—the specified ambient operating range is +5 °C to +40 °C. Operation below +5 °C ambient requires climate-controlled room conditions to ensure condensation management and compressor lubrication integrity.