Huber Grande Fleur Dynamic Temperature Control System

Overview

The Huber Grande Fleur Dynamic Temperature Control System (Model 1041.0001.01) is a high-precision, compact thermal management platform engineered for demanding laboratory and pilot-scale process applications requiring rapid, bidirectional temperature control across an exceptionally wide range (−40 °C to +200 °C). Built upon Huber’s proven Unistat technology architecture, the Grande Fleur integrates advanced thermodynamic design with closed-loop fluid circulation to deliver exceptional thermal stability (±0.01 °C) and repeatability—critical for calorimetry, reaction kinetics, material testing, and analytical instrument conditioning. Unlike conventional thermostats relying on single-mode heating or limited cooling capacity, the Grande Fleur employs a dual-function refrigeration circuit with environmentally compliant R290 hydrocarbon refrigerant and a high-efficiency electric heating system, enabling seamless transition between heating and cooling without thermal fluid exchange. Its compact footprint (295 × 530 × 570 mm) and optimized thermal mass distribution support integration into confined lab spaces while maintaining industrial-grade robustness.

Key Features

• Dynamic temperature control with ±0.01 °C stability and 0.01 °C display resolution, validated under ISO/IEC 17025-aligned calibration procedures
• Pilot ONE E-grade “Professional” controller featuring a 5.7″ capacitive multi-touch display, intuitive graphical user interface (GUI), and context-sensitive navigation menus—including customizable Favorites for one-touch access to frequently used protocols
• High-performance circulation pump delivering up to 47 L/min at 0.9 bar, with adjustable flow rate and compatibility with heat transfer fluids up to 50 mm²/s kinematic viscosity
• Integrated communication interfaces: dual USB (Host and Device), Ethernet (TCP/IP), and RS232—enabling remote monitoring, script-based automation, and time-synchronized data logging via LabVIEW, MATLAB, or custom SCADA systems
• Air-cooled refrigeration system using R290 (propane), classified as A3 safety group per EN 378, with total charge ≤0.1 kg—meeting F-Gas Regulation (EU) No. 517/2014 requirements for low-GWP alternatives
• Comprehensive safety architecture: overtemperature, low-flow, dry-run, and refrigerant leak detection; optical and acoustic alarm outputs; safety class III / FL compliance per IEC 61010-1

Sample Compatibility & Compliance

The Grande Fleur is designed for use with standard silicone oils, water-glycol mixtures, and other non-corrosive heat transfer media compatible with stainless steel (AISI 316) wetted parts and EPDM seals. It supports external temperature feedback via Pt100 sensor input (with optional Com.G@te module for analog I/O expansion), ensuring closed-loop control accuracy even with complex jacketed reactors or external calorimeters. The system conforms to key international standards including IEC 61010-1 (safety), EN 61326-1 (EMC), and EN 60529 (IP20 enclosure rating). Its controller firmware implements audit-trail-capable event logging, supporting GLP and GMP environments where traceability of temperature setpoint changes, alarms, and operational states is required per FDA 21 CFR Part 11 guidelines when integrated with compliant data acquisition software.

Software & Data Management

Native communication protocols (Modbus TCP, ASCII over RS232/Ethernet) allow seamless integration into centralized laboratory information management systems (LIMS) or process control networks. The Pilot ONE controller stores up to 100 user-defined programs with ramp/soak profiles, each configurable with up to 10 segments and conditional logic (e.g., trigger external device activation upon reaching target temperature). All operational events—including setpoint modifications, alarm activations, and power cycle history—are timestamped and retained in non-volatile memory. USB export enables direct transfer of CSV-formatted log files (temperature, power consumption, pump speed, error codes) for post-processing in Excel or statistical analysis platforms. Optional Com.G@te modules provide galvanically isolated analog inputs (0–10 V / 4–20 mA) for external process variable integration and analog outputs for supervisory control signals.

Applications

• Reaction calorimetry and synthesis optimization in pharmaceutical and fine chemical development
• Thermal conditioning of HPLC columns, GC injectors, and spectrophotometer sample compartments
• Material testing under controlled thermal cycling (e.g., polymer crystallinity studies, battery cell thermal characterization)
• Calibration of temperature-sensitive sensors and reference standards in metrology labs
• Pilot-scale bioreactor jacket temperature control with precise ramping for fermentation process validation
• Accelerated stability testing per ICH Q1A(R3) guidelines requiring strict temperature uniformity and deviation tracking

FAQ

What is the minimum and maximum allowable heat transfer fluid volume?
The system requires a minimum fill volume of 1.5 L for stable operation; the integrated expansion tank holds 3 L to accommodate thermal expansion across the full operating range.
Can the Grande Fleur be operated in a fume hood or confined space?
Yes, provided ambient temperature remains within 5–40 °C and adequate ventilation is maintained for the air-cooled condenser; clearance of ≥100 mm around rear and top vents is mandatory.
Is remote control possible without proprietary software?
Yes—standard Modbus TCP and ASCII command sets enable integration with third-party control platforms without vendor-specific drivers.
Does the system support external Pt100 feedback for jacketed vessel control?
Yes, via dedicated Pt100 input terminals; optional Com.G@te module adds analog input/output capability for advanced cascade control configurations.
What documentation is supplied with the unit?
Each shipment includes CE Declaration of Conformity, Factory Calibration Certificate (traceable to DKD/DAkkS standards), Pilot ONE User Manual (EN/DE/FR/ES), Safety Instructions, and Electrical Connection Diagram.