AMI Instruments
TGA 1000/1200/1500

Thermogravimetric Analyser

Temperature range options: ambient to 1000°C / 1200°C / 1500°C.

Insulated balance housing minimizes thermal drift and ensures accurate mass measurements.

Combines high sensitivity, low drift design, and robust thermal insulation.

TGA 1000/1200/1500 Thermogravimetric Analyzer ● Temperature range options: ambient to 1000°C / 1200°C / 1500°C. ● Insulated balance housing minimizes thermal drift and ensures accurate mass measurements. ● Combines high sensitivity, low drift design, and robust thermal insulation.

The TGA Series combines research-grade capabilities with an accessible price point, delivering high-performance thermal analysis tools without compromising on quality. Equipped with advanced high-sensitivity microbalances and compact, state-of-the-art furnaces, these instruments provide unparalleled precision, drastically reduce buoyancy effects, and ensure superior temperature responsiveness.

Renowned for their reliability and versatility, the TGA Series instruments are trusted across a wide range of industries, including plastics, rubber, adhesives, fibers, pharmaceuticals,environmental energy, petrochemicals, and food science. These instruments meet critical customer needs by enabling the characterisation and analysis of parameters such as material decomposition temperatures, mass loss percentages, component contents, and residual mass.

Key Features

Proprietary Microbalance

The proprietary TGA microbalance combines high sensitivity, low drift technology, and thermal insulation design to deliver exceptional weighing accuracy. With a resolution as precise as 0.1 μg, it is ideal for high-precision measurements of trace samples. The low-drift technology minimizes the impact of environmental factors, ensuring stable data even in long-duration experiments, while reducing errors caused by drift. Additionally, the thermal insulation design protects the balance from external temperature fluctuations, maintaining internal temperature stability and ensuring reliable results, even in conditions of rapid temperature change or high heat.

Miniature Furnace

The compact heating furnace is designed to significantly minimize gas buoyancy effects, ensuring that dynamic curve drift in TGA remains under 25 μg without requiring additional blank tests. Additionally, the furnace delivers a rapid temperature response, achieving heating rates of up to 300°C/min, which dramatically shortens experimental time and enhances overall work efficiency.

Precise Temperature Control

The advanced heating technology combined with a dual PID control system ensures precise adherence to the set temperature curve during both heating and cooling processes. With a temperature control accuracy of ±0.1°C, this system significantly reduces the influence of temperature fluctuations, delivering highly reliable experimental results.

Multiple furnace options are available to meet the specific temperature
requirements of different materials. With a maximum temperature
capability of up to 1500°C, these furnaces are designed to satisfy the
rigorous demands of both experimental and industrial applications.

Wide Temperature Range

Multiple furnace options are available to meet the specific temperature requirements of different materials. With a maximum temperature capability of up to 1500°C, these furnaces are designed to satisfy the rigorous demands of both experimental and industrial applications.

Furnace Auto-Lift System

The instrument is equipped with an automatic furnace lifting system, simplifying experimental operations and preventing equipment damage or safety incidents caused by improper manual handling.

Water Cooling System

The fully automated recirculating bath provides precise and continuous temperature control, which effectively and rapidly reduces the TGA furnace temperature, significantly shortening the experimental time.

Automatic Gas Switching Control

The gas selector supports one-button switching across multiple gases, accommodating up to 4 input ports. The device features an integrated design, consolidating four gas channels into a single module to meet the need for frequent gas switching during different testing processes.

Evolved Gas Analysis

TGA can be combined with other analytical instruments for online monitoring and qualitative analysis of evolved gases, such as mass spectrometers (MS) or Fourier-transform infrared spectrometers (FTIR).

Software

Standard Functions

· 2-point or 6-point mass loss analysis

· Peak temperature analysis

· Weight loss step analysis

· Mass loss initiation point

· Residual mass calculation

· 1st and 2nd derivative analysis

· Data smoothing

·Baseline subtraction

Optional Functions

High-Resolution thermogravimetric analysis:
Enables effective separation of overlapping mass loss regions, improving resolution, and quickly obtaining experimental data over a wide tempera-ture range.

Applications

Materials

– Petrochemical products
– Coal and other fuels
– Explosives
– Cosmetics
– Thermoplastic materials
– Thermosetting materials
– Rubber
– Coatings
– Elastomers
– Polymers
– Pharmaceuticals
– Food Products
– Catalysts
– Chemicals
– Asphalt
– Ceramics

Typical Applications

– Thermal Stability
– Thermal Pyrolysis
– Oxidation Reactions
– Dehydration Process
– Decomposition
– Process Kinetics
– Combustion Process
– Moisture Content
– Residue and Ash Content

Dynamic Baseline Drift

In a typical TGA test, the sample mass may increase due to the “buoyancy effect” of the gas. However, the design of the miniature heating furnace ensures that the drift of the dynamic thermogravimetric curve remains below 25 μg, eliminating the need for baseline curve subtraction.

Weight Loss Step Analysis

The analysis software enables clear observation of the weight loss ratio and corresponding temperatures at each stage of the process. For instance, the thermogravimetric curve of hydrated calcium oxalate demonstrates three distinct stages. In the first stage, bound water evaporates, producing water vapor and leaving behind calcium oxalate. In the second stage, calcium oxalate decomposes into calcium carbonate and carbon monoxide. Finally, in the third stage, calcium carbonate further breaks down into calcium oxide and carbon dioxide.

High-Resolution TGA

The high-resolution TGA technology intelligently adjusts the heating rate in response to the sample’s decomposition rate,effectively separating overlapping mass loss regions and enhancing resolution. This enables the rapid collection of experimental data across a wide temperature range. The exceptional resolution achieved with this advanced technology is particularly beneficial for analyzing the mass loss curve in TGA and the first derivative signals (DTG), providing highly detailed and accurate results.

Specifications

Specification	RT-1000°C	RT-1200°C	RT-1500°C

Temperature Range	RT-1000°C	RT-1200°C	RT-1500°C
Temperature Accuracy	±0.5°C
Temperature Precision	±0.1°C
Program Rate	0.1-300°C/min	0.1-60°C/min
Cooling Mode	Water Cooling
Resolution	0.1 μg
Measuring Range	±200 mg
Dynamic Baseline Drift	≤ 25 μg (No blank background subtraction)
Isothermal Baseline Drift	≤ 5 μg/h
Repeatability	≤ 10 μg
Weight	44 lbs. (20 kg)
Dimensions	16.3 in(W) × 14 in(D) × 16.6 in(H)
Options
Gas Controller	4-Channel Automatic Gas Switching
Evolved Gas Analysis	MS, FTIR, etc.

Accessories

Crucibles

Crucibles serve as sample containers in thermal analysis measurements, effectively protecting sensors and preventing measurement contamination. The selection of crucible type is critical for result quality. We offer various crucible options to meet different testing requirements, ensuring accurate and reliable measurement results.

Pellet Press

The crucible pellet press elevates sample encapsulation to higher performance and convenience, suitable for routine and hermetic testing of various materials. The standard model is specifically designed for solid sample crucibles, while the universal model handles both solid and liquid sample crucibles, offering greater flexibility for your experiments.

Fully Automated Chiller

The fully automated recirculating bath enables precise continuous temperature control within the range of -10°C to 90°C. When coupled with the water-cooled DSC 600 system, it achieves rapid furnace cooling, significantly enhancing experimental efficiency.

Gas Selector Accessory

The gas selector supports one-button switching across multiple gases, accommodating up to 4 input ports. It simplifies valve disassembly and assembly when sampling different gases, effectively minimizing leakage risks associated with manual handling. Additionally, the instrument features an automatic purging process, ensuring efficient gas line purification and seamless, automated switching between gases.