AMI
Surface DX Series

BET Surface Area Analyser

  • When fully optimized, up to 8 samples can be analyzed per hour across 4 stations.
  • Automatic Dewar elevator and valve status indicator lights streamline operation.
  • Compact, user-friendly design ideal for routine QC environments.

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Gas Adsorption
Surface DX Series

● When fully optimized, up to 8 samples can be analyzed per hour across 4 stations.
● Automatic Dewar elevator and valve status indicator lights streamline operation.
● Compact, user-friendly design ideal for routine QC environments.

Introduction

The AMI-Surface DX Series offers a fully automated solution for BET surface area analysis using dynamic flow adsorption. Designed for high-throughput labs, it features four parallel analysis stations, enabling simultaneous testing and significantly reducing turnaround times.

Operating without a vacuum system, the AMI-Surface DX uses a dynamic flow (non-static) method that supports both single-point and multi-point BET analysis. This makes it ideal for quality control, R&D, and production environments, especially for low surface area materials. With reference comparison methods, adsorption peaks are detected rapidly and accurately—delivering precise results with exceptional speed.

Key Features

Patent of Invention

Accurate adsorption measurements based on sharp peak detection eliminate errors caused by incomplete desorption. Ideal for low surface area samples such as ternary materials and battery electrode materials. (Patent No. 20140320453.2)

Automatic Nitrogen Partial Pressure Control

Surface DX 400 is equipped with high-precision mass flow controllers to automatically regulate nitrogen partial pressure during BET surface area measurements. This ensures stable and accurate gas flow across the sample surface, delivering consistent and reliable adsorption results with minimal manual intervention.

Four Parallel Operating Analysis Stations

Run up to four samples at once with independently controlled stations. Achieve unmatched throughput with consistent test conditions and result repeatability better than ±1.0%.

Anti-Elutriation Technology

A built-in anti-contamination unit prevents sample particles from entering the instrument’s internal gas line, ensuring operational reliability and long-term cleanliness.

Optional Sample Preparation Unit

External sample preparation device with four-degas stations can remove adsorbed contaminants from surface and pores of samples with heating in flowing gas/vacuum. Temperature can be set and controlled from ambient to 400 ºC.

Low Form Dewar flask

Long lasting, high volume (1 L) Dewar flasks assure a constant thermal profile along the length of sample tubes during experiment.

AMI Instruments Surface DX Series

Fast, Sensitive Testing

Adsorption peak looks sharp, no trailing phenomenon, the change of nitrogen concentration caused by each sample adsorption is not diluted at all; the sensitivity of the sample test is greatly improved. The test efficiency is greatly improved under the condition of sufficient adsorption and the comparative test of four samples in one time only needs about 15 minutes.

AMI Instruments Surface DX Series

Software

The AMI-Surface DX software provides intuitive operation with real-time visualization of nitrogen and helium flow. During analysis, users can monitor adsorption activity dynamically, offering a clear understanding of test progress and conditions. Ideal for both novice and advanced users, the interface ensures reliable, traceable operation.

AMI Instruments Surface DX Series

Applications

Silcone Nitride

Specifications

Category Specification
Model Surface DX
Principle Low temperature nitrogen adsorption, dynamic method
Method Reference method
Single point BET / Multi-point BET
Efficiency 8 samples/hr
Adsorbate and Carrier Gas High purity nitrogen (99.999%)
High purity helium (99.999%)
Gas Mixing Control Mass Flow Controllers
Thermal Conductivity Detector 1
Analysis Ports 4 (3 if performing the reference method)
Range of BET Surface Area For reference method: 0.5 to 100 m²/g
For single BET and multipoint BET: 0.5 m²/g to infinity
Repeatability Typically, better than ±1.0% (carbon black)
Volume and Weight L 24.0 in (610 mm) × W 18.0 in (460 mm) × H 27.0 in (680 mm), 66 lbs (30 kg)
Power Requirements 110V or 200–240 VAC, 50/60 Hz, maximum power 300 W

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Outstanding service

I have been using Meritics for a number of years and they always provide outstanding service and support.
They have a rapid response turnarounds and are very knowledgeable of the techniques and products they provide.

LeanneB-375

Good service, very helpful

We use Meritics for the PM service and installation of all our FlowCams . Megan has been coming to our site for a number of years. She is very efficient in her work, but most of all Megan is very helpful. We have had issues with one of instruments after the install and Megan did her utmost to try and solve it while on site, even though it wasn’t solved Megan has been in contact with the supplier of the instrument to try and solve this problem for us.

SophieH-2201

Job done in a friendly manner

Booking engineer visits is always easy. David Lowe, Meritics engineer is always very friendly.

ThierryN

Service/calibration visit

Excellent service, arrived on time, polite, friendly and informative.

NathamM-270

5 Stars

Excellent service from an excellent company. Would recommend them to anyone.

BarryH-480

Good Service

David, our service engineer as usual was good at communicating and setting up the recent service appointment, he arrived on time, did the service promptly and informed me of any problems. Friendly and helpful

TomA-446

Superb and prompt service

I have used this company through the laboratory I work for frequently. We specialise in soil analysis, and Meritics were chosen as they have extensive knowledge of the instruments we use. We have several laser particle diffraction analysers with a service contract, and service is always very prompt and meticulous….

JamesG-2483

Good experience over two years

Meritics have covered the annual servicing of our Multisizer 4e instrument since we purchased it from them just over two years ago. The application scientist who performed the servicing was friendly, knowledgeable, and extremely helpful, happily answering a barrage of questions about how best to use and maintain the instrument. All my interactions with Meritics staff have been positive. I would happily recommend them.

RajG-62

Fully committed to customer service

Service second to none, both units serviced and all questions answers by engineer while on site.

RichardA-786

Highly recommend Meritics for equipment purchases and aftercare services

After owning one of our instruments for over 8 Years which was purchased from Meritics, it suffered its first breakdown. Upon contacting Meritics, I was instantly put through to an engineer who was very helpful. Upon inspection of the manual, it was decided that it would be more cost effective to have a Meritics engineer visit. The Meritics staff were very communicative and kept me up to date.

Excellent Service

Lovely, friendly and extremely helpful. David and his team are always on call with advise and are very easy to work with and are always happy to help.

NaomiT-64

Service of lab equipment

Excellent service. Friendly and professional service was provided in a timely manner to the expected standard.

NathanM-270

Excellent

Excellent communication. Updates given well in advance. Very polite staff and engineers.

NathanM-270

Multisizer 4e install at pharmaceutical company

2 people helped with the install of a Multisizer 4e. They were both very professional and friendly, answering any questions that I had. The installation was quick and the attention to good documentation practice was exceptional.

Chloel-9

Service of Beckman Coulter instruments

Always a pleasure to welcome the Meritics service engineer, who is knowledgeable, personable and extremely competent.

NeilT-394

Professional

Friendly and collaborative staff, provided a very good service.

SamK-403

Professional, Customer-oriented, fast service

We had issues with one of the aperture tubes provided by Meritics on a Friday afternoon, while very pressed for a review deadline. Meritics handled our inquiries very fast and professionally and helped us out by shipping us their spare tube to use in the mean time free of charge, while we waited for our new tube to arrive. Communication was very pleasant.

VeerleB

Very helpful and prompt

I emailed for some technical help and also to get some spares and both the engineer (David) and purchasing (Sophie) were very prompt to respond and helpful. We do have a service contract but I appreciated being able to email the engineer directly.

AlexH-474

Excellent Service

Used Meritics to conduct particle size distribution by laser diffraction. Service as last time, is very quick, well priced and professional.

I would highly recommend

GavinR-101

Excellent and Friendly Service

Always a pleasure to deal with the people at Meritics Ltd. They understand the importance of our work and the fact that our research projects have deadlines that need to be met. Consequently, problems are dealt with very quickly and professionally and they are willing to go that one step further to make sure their supply chain problems don’t become our problems. Thank you to the team for their support. It is greatly appreciated.

JanetH-255