DZ-TGA101 DAZHAN Thermogravimetric Analyzer

Overview

The DZ-TGA101 is a benchtop thermogravimetric analyzer engineered for precision measurement of mass change as a function of temperature or time under controlled atmospheric conditions. Based on the fundamental principle of thermogravimetry—where sample mass is continuously monitored during programmed thermal cycles—the instrument delivers high-fidelity data for quantifying decomposition kinetics, thermal stability thresholds, volatilization behavior, oxidative degradation, and compositional evolution. Its robust furnace architecture, featuring dual-wound high-purity Ni-Cr heating elements and optimized ceramic insulation, ensures exceptional temperature uniformity (< ±0.1 °C fluctuation) and long-term thermal stability across the full operating range (ambient to 1250 °C). The system employs a top-opening design to minimize thermal disturbance during sample loading and reduce mechanical stress on the suspension rod and microbalance assembly—critical for maintaining baseline integrity and measurement reproducibility over extended runs.

Key Features

• High-stability microbalance system with 0.01 mg resolution and extended capacity up to 30 g via optional upgrade—enabling both trace-component analysis and bulk-material characterization.
• Dual-gas atmosphere control module with integrated digital mass flow meters, supporting seamless switching between inert (N₂, Ar), oxidative (air, O₂), reductive (H₂, CO), static, or dynamic gas environments.
• Programmable thermal profiles with up to five independent segments per run—including ramp, hold (up to 72 hours), and cooling steps—with rate control from 0.1 to 100 °C/min.
• 7-inch full-color capacitive touchscreen HMI with localized Chinese/English language support, enabling on-device calibration (temperature multi-point, mass zero/span), real-time curve visualization (TG/DTG), and parameter configuration without external PC dependency.
• USB 2.0 bidirectional communication interface compatible with Windows-based analytical software for advanced data processing—including derivative (DTG) calculation, peak deconvolution, kinetic modeling (e.g., Kissinger, Ozawa-Flynn-Wall), Excel export, PDF report generation, and audit-trail-enabled operation logs compliant with FDA 21 CFR Part 11 guidelines.

Sample Compatibility & Compliance

The DZ-TGA101 accommodates standard ceramic crucibles (Al₂O₃, Pt, or graphite) with maximum dimensions of Ø10 mm × 8 mm depth, suitable for powders, granules, films, fibers, and small monolithic specimens (≤30 g total mass). It meets essential metrological requirements outlined in ASTM E1131 (Standard Test Method for Determining Ignition Loss), ISO 11358 (Plastics — Thermogravimetry), and USP (Thermal Analysis). The system’s hardware and software architecture support Good Laboratory Practice (GLP) documentation standards, including electronic signature capability, user-access levels, and tamper-evident data archiving—making it suitable for regulated environments in pharmaceutical development, polymer quality assurance, and academic research requiring auditable thermal data.

Software & Data Management

The bundled TGAControl Suite provides comprehensive instrument control and post-acquisition analysis. Functions include automatic baseline correction, multi-curve overlay, quantitative residue calculation, derivative peak identification, and activation energy estimation using model-free methods. All raw and processed datasets are stored in vendor-neutral .csv and .tdf formats, ensuring interoperability with third-party scientific computing platforms (MATLAB, OriginLab, Python-based thermoanalysis libraries). Software updates are delivered free-of-charge via secure download portal, with version history and validation documentation available upon request for GxP validation packages.

Applications

The DZ-TGA101 serves as a foundational tool in diverse R&D and QC laboratories. In materials science, it characterizes filler content in composites, determines polymer degradation onset temperatures, and evaluates carbon black loading in elastomers. In pharmaceuticals, it verifies excipient compatibility, monitors desolvation of hydrates, and assesses residual solvent levels per ICH Q5C. In environmental testing, it quantifies organic matter loss in soils and sludge ash content. In electronics, it analyzes binder burnout profiles in LTCC substrates and thermal stability of encapsulants. Universities and national labs—including Hunan University, Tongji University, and China University of Petroleum—utilize this platform for graduate-level thermal kinetics instruction and peer-reviewed publication-grade data acquisition.

FAQ

What types of atmospheres can be used during TGA analysis?
The DZ-TGA101 supports inert (N₂, Ar), oxidative (air, O₂), reductive (H₂, CO), static, and dynamic gas environments via its dual-channel mass flow controller.
Is the instrument compatible with regulatory compliance requirements such as 21 CFR Part 11?
Yes—the software includes electronic signature support, role-based access control, and immutable audit trails for all method changes and data exports.
Can the system perform isothermal holds for extended durations?
Yes—thermal programs allow configurable isothermal segments up to 72 hours, with temperature stability maintained within ±0.1 °C.
Does the balance support calibration verification across the entire temperature range?
Yes—the touchscreen interface enables multi-point temperature calibration using certified reference materials, ensuring accuracy from ambient to 1250 °C.
Are ceramic crucibles included with the system?
Standard Al₂O₃ crucibles are supplied as standard accessories; Pt and graphite crucibles are available as optional add-ons.