The AMI-400 Series is the latest generation of fully automated chemisorption analyzers developed by Advanced Measurement Instruments (AMI). After nearly three years of focused development—driven by evolving research demands and supported by a robust global supply chain—the AMI-400 Series has officially launched.
Engineered for precision, safety, and user-friendly operation, the AMI-400 characterizes catalysts under both temperature-programmed and isothermal conditions. It provides detailed insights into surface chemistry, adsorption behavior, and reaction mechanisms—making it an essential instrument for catalysis, materials science, environmental research, and energy innovation.
Standard：
- Temperature-programmed desorption (TPD)
- Temperature-programmed reduction/ oxidation (TPR/O)
- Temperature-programmed surface reaction (TPSR)
- Pulsed chemisorption
- Dynamic BET surface area
Options：
- Sub-ambient temperatures
- Mass spectrometer
- Gas chromatograph
- FTIR
- Vapor dosing
Features
Precise Thermal Conductivity Detector
The instrument is equipped with a high- precision, four-wire rhenium-tungsten TCD detector, featuring a constant temperature range from room temperature to 200°C. Additionally, filament types can be customized to match specific research needs, or the system can be integrated with auxiliary gas detectors such as mass spectrometers, FTIR, or FID, providing enhanced analytical versatility for a wide range of experimental applications.
All-in-One Constant Temperature
Precise Vapor Control – Ensures a stable and uniform temperature for consistent and reliable performance. Simplified Vapor Operation – Designed for easy and efficient vapor handling, optimizing experimental conditions and reproducibility.
Intelligent Gas Inlet Interface
A user-friendly port design eliminates the need for users to manually determine the type of gas used (carrier gas, process gas, or pulse gas); the software automatically selects the appropriate gas. The eight inlet ports meet daily testing needs, allowing multiple experiments without frequent gas interface changes, thus reducing user operations.
Integrated Constant Temperature Valve Box
The instrument’s process tubing is heated using a convection oven, maintaining a uniform temperature distribution with a maximum temperature of 150ºC. This design eliminates cold spots in the stainless-steel tubing, valves, and TCD detector, ensuring optimal performance and accurate measurements.
Precise Temperature Control
The system offers a temperature range from – 130°C (with optional configuration) to 1200°C, with linear heating ramps from 1 to 50°C/min.
Automatic Air-Cooling Module
Software – Controlled Automation – Enables precise and efficient cooling with no manual intervention required. Rapid Furnace Cooling – Utilizes air cooling technology to quickly lower furnace temperature, enhancing turnaround time and overall operational efficiency.
Accurate Flow Control System
High-precision MFCs regulate gas flow from 2–100 SCCM, ensuring stable, accurate measurements. A built-in mixing volume enables real-time gas blending for flexible experimental setups.
Cold Trap
A dedicated cold trap is installed downstream of the sample to effectively remove condensable substances before they reach the TCD detector, ensuring accurate measurements and extending the TCD’s operational lifetime.
Specifications
