NEXTA STA

Overview

The NEXTA STA series from Hitachi High-Tech delivers simultaneous thermogravimetric and DSC measurement in a single instrument, combining microgram-level baseline stability with advanced temperature control technology for precise characterization of a wide range of materials.

STA (simultaneous thermogravimetric analysis) measures TGA and DSC simultaneously, enabling evaluation of thermal resistance, decomposition temperature, component quantification, and specific heat capacity in a single run. The NEXTA STA series builds on Hitachi’s established horizontal digital dual beam balance system with new balance control technology that eliminates baseline drift caused by temperature program hysteresis or environmental variation.

The result is world-class baseline stability and reproducibility, even across demanding measurement programs. Redesigned gas flow channels ensure high-level gas exchange, and the integrated mass flow controllers support a wide variety of purge gas conditions.

In addition to conventional polymer and pharmaceutical applications, the NEXTA STA series is well suited to quantitative analysis of advanced composite materials, ceramics, metals, and trace moisture determination.

Key Features

• World-class TGA baseline drift and stability of less than 10 µg for detection of minute weight changes
• Simultaneous TGA and DSC in one measurement — no separate runs required
• Broad temperature range up to 1,500°C with precise heating and cooling control
• Modulated DSC capability for specific heat capacity measurements across the full temperature range
• Up to 4 integrated mass flow controllers for flexible gas exchange and atmosphere control
• Real View® camera option for real-time visual sample observation synchronized with thermal data
• Intuitive guided software with automated analysis, built-in standards (ISO, ASTM, DIN, JIS), and comprehensive data export
• All software modules included as standard — no additional software costs as applications expand

STA200, STA200RV, and STA300

The NEXTA STA series includes three models to cover different temperature and observation requirements:

• STA200: Up to 1,100°C — optimized for routine thermal analysis of polymers, pharmaceuticals, and general materials
• STA200RV: Up to 1,000°C — the STA200 with Real View® camera system built in for integrated visual observation
• STA300: Up to 1,500°C — designed for high-temperature characterization of ceramics, metals, and advanced inorganic materials

Real View® Sample Observation

The Real View® camera system integrates directly with the NEXTA STA to capture real-time images of the sample during measurement. Images showing changes in shape, size, colour, and surface condition are automatically timestamped and linked to the corresponding thermal data. Advanced analysis tools include digital zoom, image analysis, length measurement, and color analysis. Real View® is a registered trademark of Hitachi High-Tech Analysis Corporation.

Typical Use Cases

• Thermal stability and decomposition profiling of polymers and composites
• Component quantification in multi-phase and filled materials
• Specific heat capacity measurement using modulated DSC over wide temperature ranges
• Moisture and volatile content determination in pharmaceuticals and food materials
• High-temperature characterization of ceramics, metals, and inorganic compounds
• Quality control and incoming materials testing in production environments

Compare Models

1) Baseline drift measured during heating to 1,000°C at 20°C/min
2) Baseline drift measured during 60-minute isothermal hold at 1,000°C