HESON HS-STA-002 Simultaneous Thermal Analyzer (TG-DSC)

Overview

The HESON HS-STA-002 Simultaneous Thermal Analyzer integrates thermogravimetric analysis (TG) and differential scanning calorimetry (DSC) into a single instrument platform, enabling concurrent measurement of mass change and heat flow from one sample under identical thermal and atmospheric conditions. Based on the principle of simultaneous dual-signal detection—where a high-stability microbalance records mass loss/gain while a heat-flux sensor quantifies endothermic or exothermic transitions—the HS-STA-002 delivers intrinsically correlated thermal event data. This architecture eliminates inter-test variability caused by sample heterogeneity, furnace calibration drift, gas flow inconsistency, or sequential measurement misalignment. The system operates across a broad temperature range (ambient to 1150 °C), with programmable heating rates from 0.1 to 80 °C/min and thermal stability maintained within ±0.1 °C. Its design supports rigorous materials characterization in academic research, quality control laboratories, and industrial R&D environments where phase transitions, decomposition kinetics, oxidative stability, and compositional purity must be evaluated with metrological traceability.

Key Features

• High-precision dual-sensor architecture: Separately optimized platinum-rhodium alloy furnace windings and a corrosion-resistant nickel-chromium sample pan sensor ensure long-term thermal uniformity and signal fidelity at elevated temperatures.
• Thermally isolated mechanical design: Water-cooled chassis housing decouples the furnace assembly from the microbalance and electronics, minimizing thermal drift and vibration-induced noise in both TG and DSC channels.
• Top-opening furnace configuration: Enables rapid, non-invasive sample loading without vertical displacement of the sample rod—reducing mechanical stress and preserving sensor integrity over extended operational cycles.
• Dedicated embedded control system: ARM Cortex-M3 32-bit processor with synchronized 24-bit, 4-channel analog-to-digital conversion ensures real-time acquisition of TG, DSC, and temperature signals at sub-millisecond resolution.
• Modular furnace compatibility: Optional furnace modules (e.g., extended-range or inert-atmosphere variants) can be integrated per application-specific requirements without hardware redesign.
• Intuitive human-machine interface: 7-inch full-color LCD touchscreen provides direct access to method setup, real-time curve visualization, parameter logging, and export-ready data formatting.

Sample Compatibility & Compliance

The HS-STA-002 accommodates solid, powdered, and granular samples up to 2 g (extendable to 30 g with optional configuration), supporting routine analysis of polymers, ceramics, pharmaceuticals, battery cathode materials, catalysts, and carbonaceous adsorbents. Dual-gas manifold enables automated switching between inert (N₂), oxidative (air/O₂), or reducing atmospheres with precise flow control (0–300 mL/min) and pressure regulation (≤0.5 MPa). All thermal protocols comply with ASTM E1131, ISO 11357-1, and USP <1151> for thermal analysis methodology. Data acquisition meets GLP/GMP documentation standards, including time-stamped audit trails, user-access controls, and electronic signature readiness for FDA 21 CFR Part 11–aligned workflows.

Software & Data Management

Instrument control and post-acquisition analysis are managed via HESON’s proprietary STA Analysis Suite, a Windows-based application supporting baseline correction, peak deconvolution, kinetic modeling (e.g., Kissinger, Ozawa-Flynn-Wall), and enthalpy integration referenced to instantaneous sample mass—not initial mass—ensuring accuracy in reaction heat quantification. Raw data export formats include ASCII, CSV, and universal .tdf for third-party interoperability with OriginLab, MATLAB, or Thermo Scientific™ OMNIC™. USB interface allows direct transfer to networked lab systems; no proprietary dongles or cloud dependencies required. Firmware updates are delivered via signed binary packages with SHA-256 verification.

Applications

• Decomposition onset and residue quantification in flame-retardant polymers and composite matrices.
• Hydration/dehydration behavior and crystallinity evolution in pharmaceutical hydrates and excipients.
• Oxidative induction time (OIT) assessment of polyolefins per ASTM D3895.
• Carbonization kinetics and pore-formation mechanisms in biomass-derived activated carbons.
• Phase transition mapping in shape-memory alloys and ferroelectric ceramics.
• Thermal stability profiling of lithium-ion battery electrode materials under controlled N₂ purge.
• Reaction enthalpy determination in catalytic polymerization systems (e.g., Pickering emulsion-based acrylic synthesis).

FAQ

What is the difference between simultaneous TG-DSC and sequential TG + DSC measurements?
Simultaneous measurement ensures identical thermal history, gas environment, and sample positioning for both signals—eliminating cross-run artifacts and enabling direct correlation of mass loss events with corresponding thermal effects.
Can the HS-STA-002 operate under air or oxygen atmospheres?
Yes—the dual-gas manifold supports automatic switching between N₂, air, O₂, or custom gas mixtures with adjustable flow and pressure settings.
Is the instrument compliant with regulatory data integrity requirements?
Yes—data files include embedded timestamps, operator IDs, method parameters, and calibration logs; software supports 21 CFR Part 11–compatible audit trails and electronic signatures.
How is thermal mass correction handled during DSC enthalpy calculation?
The system continuously references DSC signal integration to real-time TG mass values, not initial mass—critical for accurate ΔH calculation in decomposing or evolving samples.
What maintenance intervals are recommended for long-term stability?
Annual calibration verification using certified reference materials (e.g., indium, zinc, alumina) is advised; furnace and sensor inspection every 500 operating hours.