Setaram HT1000 High-Temperature Reaction Calorimeter
| Key | Origin: France |
|---|---|
| Manufacturer Type | Authorized Distributor |
| Origin Category | Imported Instrument |
| Model | HT1000 |
| Pricing | Available Upon Request |
| Temperature Range | Ambient to 1000 °C |
| Sample Crucible Volume | 8.5 mL |
| Heat Flow Resolution | 4 µW |
| Baseline Noise | 8 µW |
| Crucible Types | Standard Crucible, Solid Specific Heat Crucible, Joule Calibration Crucible |
Overview
The Setaram HT1000 High-Temperature Reaction Calorimeter is a precision-engineered differential heat flow calorimeter designed for quantitative thermal analysis under controlled inert or reactive atmospheres at elevated temperatures. Operating on the principle of guarded heat conduction calorimetry, the HT1000 measures minute heat effects—absorption or evolution—with high sensitivity and long-term baseline stability across a continuous temperature range from ambient to 1000 °C. Its robust furnace architecture, combined with a dual-sensor thermopile detection system and active temperature gradient compensation, ensures minimal thermal lag and high reproducibility in enthalpy determination. The instrument is purpose-built for fundamental thermodynamic characterization of high-temperature processes where conventional DSC or standard reaction calorimeters reach operational limits—including metallurgical phase transformations, mineral decomposition kinetics, high-temperature catalytic oxidation, solid–gas corrosion mechanisms, and alloy formation thermodynamics.
Key Features
- Extended operating range: Ambient to 1000 °C with ±0.1 °C temperature control accuracy and ramp rates up to 50 °C/min (programmable).
- Dual-mode operation: Supports both isothermal and dynamic (ramp/step) calorimetric protocols under static or flowing gas environments (N2, Ar, O2, CO2, synthetic air).
- High-sensitivity microcalorimetric detection: 4 µW heat flow resolution with <8 µW RMS noise floor over 24-hour baseline stability.
- Modular crucible system: Interchangeable sample holders including standard alumina crucibles (8.5 mL volume), dedicated solid specific heat crucibles with integrated reference mass calibration, and Joule-calibrated crucibles for absolute enthalpy verification via electrical resistance heating.
- Drop-type sample introduction mechanism: Enables rapid, contamination-free insertion of pre-heated samples or molten metals directly into the hot zone—critical for studying exothermic mixing of liquid alloys or real-time slag–metal interaction.
- Integrated furnace shielding and radiation baffling: Minimizes radiative heat loss and improves signal-to-noise ratio above 600 °C.
Sample Compatibility & Compliance
The HT1000 accommodates solid, powdered, granular, and molten metallic or ceramic samples—up to 8.5 mL volume—with compatibility for aggressive chemistries including oxidizing, reducing, and sulfidizing atmospheres. It supports ASTM E698 (kinetic analysis of thermal decomposition), ISO 11357-4 (high-temperature DSC), and USP (thermal analysis of pharmaceutical excipients at elevated temperatures). All hardware and firmware comply with IEC 61000-6-3 (EMC) and IEC 61010-1 (safety for laboratory equipment). Data acquisition and reporting meet GLP/GMP documentation requirements, with optional 21 CFR Part 11-compliant software modules available for audit-trail-enabled environments.
Software & Data Management
Controlled via Setaram’s Calisto™ v5.x platform, the HT1000 provides real-time visualization of heat flow, temperature, and gas flow parameters with synchronized multi-channel logging. The software enables advanced data treatment including baseline subtraction, peak deconvolution, kinetic modeling (e.g., Ozawa-Flynn-Wall, Kissinger), and phase diagram construction via sequential isothermal measurements. Raw data are stored in vendor-neutral ASCII format with embedded metadata (timestamp, operator ID, atmosphere, purge rate), ensuring full traceability and third-party interoperability. Automated calibration routines—including Joule calibration and empty-crucible baseline mapping—are scriptable and repeatable across instrument lifecycles.
Applications
- Thermodynamic characterization of refractory metal oxidation (e.g., Ti, Nb, Mo) and high-entropy alloy formation enthalpies.
- Kinetic modeling of mineral dehydration (e.g., kaolinite → metakaolin) and carbonate decomposition (e.g., CaCO3 → CaO + CO2) under controlled pCO2.
- Quantification of heat effects during slag–metal equilibration in pyrometallurgical process development.
- Specific heat capacity (Cp) measurement of ceramics and intermetallics using modulated or step-isothermal methods.
- Validation of thermodynamic databases (e.g., FactSage, Thermo-Calc) through direct experimental enthalpy-of-mixing data for molten systems.
FAQ
What atmospheres can be used with the HT1000?
The system supports inert (Ar, N2), oxidizing (O2, air), reducing (H2/Ar, CO), and corrosive (SO2, Cl2) gas environments with mass-flow-controlled delivery and optional scrubber integration.
Is the HT1000 compatible with molten metal handling?
Yes—the drop-in sample introduction system is specifically engineered for safe, rapid transfer of pre-molten metals (e.g., Al, Cu, Fe-based alloys) into the hot zone without thermal shock or crucible fracture.
How is calibration performed?
Primary calibration uses electrical Joule heating in certified crucibles; secondary calibration employs standard reference materials (e.g., high-purity Ni, In, Zn) across the full temperature range with NIST-traceable uncertainty budgets.
Can the HT1000 be integrated into automated lab workflows?
It features Ethernet-based communication (TCP/IP), OPC UA support, and LabVIEW-compatible drivers for integration with robotic sample handlers and centralized LIMS platforms.
What maintenance intervals are recommended?
Furnace insulation inspection every 12 months; thermopile sensor validation annually; gas line filters replaced quarterly; all procedures documented per ISO/IEC 17025 maintenance logs.
