DSC analyzer STA4001

gasmonitoringautomatic

Short description
STA4001 is a lifting synchronous thermal analyzer that measures TG and DSC simultaneously. The instrument features an automatic lifting furnace design for convenient sample loading and rapid cooling.

Key features
The instrument includes a digital flow meter for automatic gas flow control. Upgraded analysis software improves data accuracy. The system can be interfaced with infrared (IR) modules to extend analytical capabilities.

Test scope

• Thermal stability
• Redox reactions
• Decomposition behavior
• Corrosion research
• Decomposition kinetics analysis
• Melting and crystallization
• Solid phase transition
• Crystallinity
• Glass transition

How it works
The STA4001 monitors sample mass change (TG) and heat flow (DSC) while controlling the furnace to heat, cool and hold the sample. The system records temperature and associated physical or chemical transitions under controlled atmospheres.

Performance advantages of STA synchronous thermal analyzer
The furnace uses double-row winding of platinum-rhodium alloy wire to reduce interference and increase high-temperature resistance.
The sample pallet sensor is made from a precious metal alloy offering high temperature resistance, oxidation and corrosion resistance.
The power supply, circulation cooling and main unit are separated to minimize heat and vibration effects on the microbalance.
The main unit adopts an isolated heating furnace to protect the chassis and microthermal balance from thermal impact.
The furnace body features double insulation for improved linearity, automatic lifting with fast cooling (≤15 min from 1000°C to 50°C), an exhaust outlet and compatibility with IR systems.

Technical specifications

• Model: STA4001
• Temperature range: Room temperature ~ 1250°C
• Temperature resolution: 0.001°C
• Temperature fluctuations: ±0.01°C
• Heating/cooling rate: 0.1 ~ 100 °C/min (heating); -0.1 ~ -40 °C/min (cooling)
• Temperature control method: PID temperature control (heating, constant temperature, cooling)
• Weighing system measuring range: 0.01 mg ~ 3 g (expandable to 50 g)
• Weighing accuracy: 0.01 mg
• Weighing resolution: 0.01 μg
• DSC range: ±1000 mW
• DSC sensitivity: 0.0001 mW
• Atmosphere control: Built-in digital flow meter to automatically control gas volume
• Software: Intelligent software automatically records TG and DSC curves, processes data and provides automatic adjustment functions (auto extend and scale display)
• Constant temperature time: User-defined; standard configuration ≤ 600 min
• Data/test notes: Data acquisition frequency selectable in real time (2 s, 5 s, 10 s, etc.). Automatic and manual furnace lifting; rapid cooling capability (≤15 min from 1000°C to 50°C). External water cooling isolates heat from the weighing system to reduce drift; cooling device operating ambient temperature: -10 ~ 60°C