AMI
Micro 300
BET Surface Area, Pore Size and Micropore Analyser
- Available in multiple models to support diverse lab-throughput needs.
- 3 analysis stations with high-vacuum pump and up to 3 pressure sensors per station.y
- Equipped with 3 in-situ degassing ports and 1 cold trap.
Key Features
Low Dead-Volume Module Design for Accurate Gas Adsorption Analysis
The internal gas path design of the instrument adopts a unique integrated metal module design,
which not only reduces the internal dead volume space but also lowers the system leakage rate.
Saturated Vapor Pressure P₀ Measurement for Accurate P/P₀ Control
An independent P0 pressure transducer is configured at 133 kPa for P0 value testing,
enabling real-time P/P0 measurement for more accurate and reliable test data.
Alternatively, an atmospheric pressure input method can be used to determine P0.
Independent Analysis Ports for Simultaneous Physisorption Experiments
With independent analysis ports, the system employs a unique vacuum control logic that allows
each station to operate without disruption, even when using a single mechanical pump or pump group.
This enables simultaneous, independent experiments, meeting diverse adsorbent testing needs while
ensuring high efficiency.
Thermal Stabilization for Reliable Surface Area and Pore Size Analysis
A core rod in the sample tube reduces deadvolume and stabilizes the cold free space coefficient,
while an iso-thermal jacket maintains a constant thermal profile along the tube. Additionally,
automatic helium correction ensures precise calibration for any powder or particulate material,
minimizing temperature-related deviations during analysis.
High-Accuracy Pressure Transducers for Micropore Analysis
Equipped with 1000 torr pressure transducers, the Meso Series enables precise physical adsorption
analysis, achieving a partial pressure (P/P0) as low as 10-2 for nitrogen
(N2) at 77 K.
Manifold Contamination Control for Reliable Adsorption Measurements
This system features a multi-channel, adjustable, and parallel vacuum design with segmented vacuum control.
This setup effectively prevents samples from being drawn up into the analyser, therefore preventing manifold contamination.
Liquid Nitrogen Dewar for Stable Adsorption Testing
The use of 1 L Dewar flasks in conjunction with a sealed cover ensures a stable thermal profile along the entire
length of both the sample tubes and P0 tubes throughout the testing process.
In-Situ Sample Preparation and Degassing Ports
Equipped with four in-situ degassing ports, enabling simultaneous degassing and analysis. Each port offers
independent temperature control from ambient to 400°C, ensuring precise sample preparation.
Software
PAS Software is an intelligent solution for operation control, data acquisition, calculation, analysis, and report generation on the Windows platform. It communicates with the host via the LAN port and can remotely control multiple instruments simultaneously.
PAS Software adopts a unique intake control method, optimizing pressure in the adsorption and desorption processes through a six-stage setting, which improves testing efficiency
Each adsorption equilibrium process is dynamically displayed on the test interface. Adsorption characteristics ofthe sample can be easily understood.
Changes in pressure and temperature inside the manifold can be directly observed in the test interface,providing convenience for sample testing and instrument maintenance. Current state of analyzer can be intuitively understood with the indicator light and event bar.
A clear and concise report setting interface,
including the following:
Adsorption and desorption isotherms Single-/Multipoint BET surface area Langmuir surface area STSA surface area Pore size distribution according to BJH t-plot Dubinin–Radushkevich Horvath–Kawazoe Saito–Foley
Applications
Small Molecule Hydrocarbon
Amorphous Silica
Nanoporous Material
Specifications
| pecific Model | 300A | 300B | 300C |
|---|---|---|---|
| Analysis Ports | 3 | 3 | 3 |
| P0 Transducer | 3 | 3 | 3 |
| Analysis Pressure Transducer | 3 | 5 | 9 |
| Accuracy PTs | Port 1: 1000 torr Port 2: 1000 torr Port 3: 1000 torr |
Port 1: 1000 torr, 10 torr, 1(0.1) torr Port 2: 1000 torr Port 3: 1000 torr |
Port 1: 1000 torr, 10 torr, 1(0.1) torr Port 2: 1000 torr, 10 torr, 1(0.1) torr Port 3: 1000 torr, 10 torr, 1(0.1) torr |
| Adsorbates | N₂, Ar, Kr, H₂, O₂, CO₂, CO, NH₃, CH₄, etc. | ||
| Pump | 1 mechanical pump (ultimate vacuum 10⁻² Pa) | 1 mechanical pump (ultimate vacuum 10⁻² Pa); 1 turbo molecular pump (ultimate vacuum 10⁻⁸ Pa) | |
| Cold Trap | 1 | ||
| P/P₀ | 10⁻⁴ – 0.998 | 10⁻⁸ – 0.998 | |
| Surface Area | ≥ 0.0005 m²/g, test repeatability: RSD ≤ 1.0% | ||
| Pore Size | 0.35–500 nm, test repeatability: ≤ 0.02 nm | ||
| Pore Volume | ≥ 0.0001 cm³/g | ||
| Degassing Ports | 3 in-situ | ||
| Volume & Weight | L 34.5 in (870 mm) × W 22.5 in (570 mm) × H 35.0 in (890 mm), 176–198 lbs (80–90 kg) | ||
| Power Requirements | 110 or 200–240 VAC, 50/60 Hz, maximum power 300 W | ||