JULABO MS-310F Advanced Heating & Cooling Circulating Bath

Overview

The JULABO MS-310F is a high-precision, dual-mode circulating bath engineered for demanding laboratory and pilot-scale applications requiring stable, programmable temperature control across an extended range of −30 °C to +200 °C. Unlike single-function heating baths, the MS-310F integrates active refrigeration and resistive heating within a compact, thermally optimized architecture—enabling precise thermal conditioning of external reactors, analytical instruments (e.g., viscometers, spectrophotometers), or jacketed glassware. Its core temperature regulation relies on JULABO’s proprietary Intelligent Control Concept (ICC), a closed-loop algorithm that continuously monitors bath temperature, load dynamics, and ambient thermal drift to deliver ±0.01 °C stability under dynamic load conditions. The system employs a dual-pump configuration—separate pressure and suction pumps—ensuring consistent flow delivery even when driving high-backpressure external circuits or long tubing runs. Constructed entirely to German manufacturing standards, the MS-310F meets DIN 12876-1 Class S3 requirements, permitting safe use with flammable heat-transfer media such as silicone oils or ethylene glycol blends.

Key Features

• 7-inch full-color TFT touchscreen interface with intuitive navigation, multi-language support (English, German, French, Spanish, Chinese), and three customizable display layouts: numeric readout, real-time data + trend curve, or full-screen graphing mode
• ICC-based adaptive control logic ensures minimal overshoot and rapid settling time—even during ramp-and-soak sequences or when switching between heating and cooling modes
• Dual independent pump system delivers adjustable flow (16–31 L/min) and pressure (0.24–0.92 bar), supporting both low-resistance internal circulation and high-head external loops
• Stainless steel fluid-contact components (316L grade) guarantee chemical resistance and long-term integrity with aggressive or high-temperature bath media
• Integrated drain valve and bottom-mounted cooling coil design maximize usable bath volume while simplifying maintenance and fluid exchange
• Eight independent temperature programs, each configurable with up to 60 time-temperature steps—including ramp rates, dwell times, and loop repetitions
• Comprehensive digital connectivity: standard USB host/device, RS232 serial, and Ethernet (TCP/IP) ports; analog I/O (0–10 V / 4–20 mA) available as optional module for PLC integration

Sample Compatibility & Compliance

The MS-310F accommodates a broad spectrum of bath fluids—from deionized water and aqueous glycol solutions to high-boiling-point silicone oils and specialized heat-transfer fluids rated for >200 °C operation. Its DIN 12876-1 Class S3 certification confirms structural and electrical safety for use with flammable liquids, including vapor-tight sealing, overtemperature cut-off, and spark-free internal components. The unit complies with IEC 61010-1 for laboratory equipment safety and supports GLP/GMP workflows through audit-trail-capable software logging (via JULABO’s LabSoft or third-party SCADA systems). All firmware and communication protocols adhere to ISO/IEC 17025 traceability principles, and optional 21 CFR Part 11 compliance packages are available for regulated pharmaceutical or biotech environments.

Software & Data Management

JULABO LabSoft v5.x provides full remote supervision, real-time monitoring, and automated report generation via Ethernet or USB connection. Users can export timestamped temperature logs (CSV/Excel), overlay multiple sensor inputs (e.g., bath, external probe, reactor jacket), and trigger alarms based on deviation thresholds or rate-of-change limits. The embedded web server enables browser-based access without client installation—ideal for shared lab networks. Data integrity is reinforced through password-protected user roles (operator, technician, administrator), electronic signatures, and tamper-evident file encryption. For integration into centralized LIMS or MES platforms, the MS-310F supports Modbus TCP and OPC UA protocols out of the box.

Applications

• Calibration of temperature-sensitive instrumentation (thermocouples, RTDs, infrared sensors) across wide thermal spans
• Thermal preconditioning of polymer samples prior to DSC, TGA, or rheological testing
• Temperature control of HPLC column ovens, GC injectors, or reaction calorimeters requiring sub-0.02 °C stability
• Accelerated aging studies in materials science using programmed thermal cycling profiles
• Process validation in pharmaceutical development, where precise thermal ramps and holds are mandated by ICH Q5C guidelines
• Support of electrochemical cells and battery testing rigs requiring uniform thermal management at elevated temperatures

FAQ

What bath fluids are compatible with the MS-310F at +200 °C?
Silicone oils (e.g., Dow Corning 200 Fluid, viscosity grades 100–1000 cSt) and polyalphaolefin (PAO)-based synthetic heat-transfer fluids are recommended. Water-based solutions are not suitable above 100 °C due to vapor pressure limitations.
Can the MS-310F cool below −30 °C?
No—the MS-310F is rated for a minimum operating temperature of −30 °C. For lower ranges, consider the MS-600F (−35 °C) or MS-601F (−35 °C with larger reservoir).
Is external temperature feedback supported?
Yes—via optional Pt100 or thermocouple input (K/J type); the controller can switch between bath-sensor and external-probe regulation modes with automatic gain adjustment.
Does the unit require ventilation or external exhaust?
No—MS-series units are self-contained with no rear exhaust; multiple units may be installed side-by-side in confined spaces without derating.
How is calibration verification performed?
The system includes a built-in reference sensor port for NIST-traceable thermometer insertion; JULABO-certified calibration services include as-found/as-left reports and uncertainty budgets per ISO/IEC 17025.