Product Overview

The AMI Physisorption Series by Altamira Instruments is designed for precise surface area and pore size analysis using physisorption techniques. It targets both research and industrial applications requiring detailed materials characterization.

Technical Specifications

Measurement Ranges and Accuracy

• Pore size measurement range: 0.35 nm to 500 nm, with extended options from 2 nm to 500 nm.
• Repeatability: ≤ 0.02 nm in micropore range; ≤ 0.2 nm in mesopore range.
• Surface area measurement sensitivity starts from 0.0001 m²/g with accuracy on standard samples within ±1.0%.
• Volume measurement sensitivity: 0.0001 cm³/g with ±0.15% full scale accuracy.

Pressure Sensors and Ports

• Four high precision 1000 Torr pressure sensors standard for analysis ports.
• Additional 1000 Torr sensor for reference pressure (p0) measurement.
• Pressure sensor options include 1000 Torr, 10 Torr, 1 Torr, and 0.1 Torr for varied measurement needs.

Temperature and Environmental Conditions

• Operating temperature range: ambient up to 400 °C, optionally extendable to 500 °C.
• Temperature accuracy: ±1 °C.
• Environmental requirements: temperature between 15 °C and 40 °C; relative humidity between 10% and 90%.

Vacuum Systems

• Standard vacuum: mechanical oil pump achieving 10^-3 Pa ultimate vacuum.
• Optional turbo molecular pump upgrade for ultra-high vacuum down to 10^-8 Pa.

Gas and Adsorbate Handling

• Optional independent gas intake systems per analysis port enable simultaneous multi-adsorbate testing.
• Supported gases include N₂, Ar, Kr, H₂, O₂, CO₂, CO, NH₃, CH₄, among others.

Analysis and Degassing Stations

• Up to four micropore analysis stations depending on model.
• Standard independent four-station degassing station for sample preparation.

Electrical Requirements

• Power supply: 110-220 V, 50/60 Hz.
• Maximum power consumption: 300 W.
• Maximum current: 5 A.

Additional Features and Options

• In-situ measurement ports available (2 or 4 depending on configuration).
• Independent vacuum systems selectable per analysis port.
• Various optional accessories and configurations to enhance instrument capabilities.

Critical Parameters and Best Practices

• Maintain environmental temperature and humidity within specified ranges for optimal performance.
• Choose vacuum system based on required vacuum level for specific applications.
• Use independent gas intake and vacuum systems per port to enable multi-adsorbate testing and improve throughput.
• Regularly calibrate pressure sensors and temperature controls to ensure measurement accuracy.
• Utilize the standard four-station degassing station for consistent sample preparation.

Instrument Model Variations

Different models (e.g., TOP200, QUICK200) vary in number of analysis stations, pressure sensor options, vacuum systems, and environmental requirements. These distinctions help users select configurations tailored to their analytical needs and laboratory conditions.

Limitations

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Summary

The AMI Physisorption Series is a versatile and precise instrument line for surface area and pore size analysis, offering a broad measurement range, high accuracy, and flexible configurations. It supports multiple adsorbates and includes advanced vacuum and temperature control systems. Proper environmental control and regular calibration are essential for optimal performance.