SA-9650 Series

BET Surface Area Analyzers

The NEW SA-9650 series of surface area analyzers provides convenience, remarkable measurement speed, and very low cost-per-analysis for a wide variety of materials. With the push of a button, you can now perform extremely fast single point or multi-point surface area measurements using the robust, time-proven flowing gas (dynamic) technique to acquire gas adsorption and desorption data. Once acquired, the information is then used to calculate total surface area utilizing the BET method

Housed in a completely redesigned cabinet, the SA-9650 is built to provide safe and easy access to the prep and test stations. The analyzer can be controlled using the built-in microcomputer, keyboard, and an LCD display, or can be controlled by any Windows PC via a USB connection. The new electronics and hardware have been improved and now carry the CE mark. New, enhanced software allows the user to create reusable Method files with improved, intuitive graphics utilizing guided, on-screen preparation information. Reporting improvements include results averaging, overlays, automatic PDF reports, and raw data exports.

Single and three station models are available, allowing up to three simultaneous surface area measurements at once. Samples can be measured in 15 minutes for single-point or 45 minutes for multi-point, depending on sample.* Results can be viewed immediately after measurement.

Segment: Scientific
Výrobní společnost: HORIBA Instruments Incorporated

Surface Area Analysis

The surface area of a material is, in many cases, as important as the chemical properties of that material and can impact many aspects of a material’s performance. This is because the interface of the material influences how solids behave in the presence of other materials, be they gases, liquids, or other solids.  

This affects things such as:

  • Shelf life, stability, dissolution and efficacy of pharmaceutical powders and tablets.
  • The rheological properties and hiding powers of pigments, paints, and coatings.
  • The ability for materials like catalysts, adsorbents, filtration materials and air separation products to react in the designed application.
  • Refine oil products.
  • Purify air, separate gases, or remove harmful by-products.
  • The creation and performance of ceramics used in applications ranging from dinner plates, dental implants, to electronics.
  • In batteries, powder surface area influences electrode performance and the fabrication process as well as the electrolyte interaction and electrochemical stability of many types of batteries.


Measuring specific surface area (surface area per unit of mass) of these materials through gas adsorption is a common technique used in materials science, chemistry, and many industrial settings. To learn more about surface area analysis and physisorption technology, visit our Surface Area Technology page.

HORIBA's SA-9650 series analyzers offer the perfect solution to a myriad of surface area analysis needs

Automatic Analysis
Starting an analysis is simple and requires as little as a single push of a button. The entire analysis is completed without further interaction and avoids the manual steps required with many similar analyzers. Once the analysis is initiated, calibration occurs, and the liquid nitrogen Dewars are automatically raised and lowered under computer control. Upon analysis completion, data is automatically produced and made available.

Compact, All-in-One
The SA-9650's redesigned cabinet allows front facing access to all operational touch points with no side access required. No separate analysis and preparation devices are needed as with many alternative analyzers. Control using the built-in computer and keyboard to maximize space savings in your lab.

Safe and Secure
Both the Prep and Test Stations are protected by transparent safety doors and must be properly closed prior to operation. Heat will automatically shut off at the Prep station and the Test station Dewar tray will not move if their station doors are opened, keeping operators safe.

No User Calibration Required
To ensure repeatable accuracy, the SA-9650 performs an automatic calibration before every measurement. And from there, the SA-9650 technology eliminates variables otherwise introduced by operator involvement.

No Freespace or Void Analysis Required
Due to the design of the flowing gas or dynamic method, no additional time is spent measuring the sample tube volume or freespace. Furthermore, no requirements for measuring sample tube volumes or calibration are required.

Lowest Cost of Ownership
The use of mass flow controllers in multipoint versions of the SA-9650 series automatically create the necessary mixtures of nitrogen and helium for multi-point BET surface area analysis. This lowers the total cost of ownership by eliminating the need to purchase expensive gas mixtures or external gas mixer systems. Straightforward design ensures service costs are minimal compared to more complex, static volumetric technology.

Detector Protection
An automated measurement station bypass loop, controlled by a cell detector switch, provides an uninterrupted gas mixture flow through the Thermal Conductivity Detector in case of missing or broken sample cell.

Electronic Valves
Reliable electronic valves eliminate the need for a compressed air or gas supply to actuate valves during the measurement process, further lowering cost of ownership.

Improved Gas Handling
Thoughtful design of manifold layout and valve selection result in more stable, balanced flow, improving repeatability, lowering maintenance costs, and easing operation.

Robust Dewar Elevator System
A rugged mechanical design means smoother and reliable movement of the Dewar tray that raises and lowers the LN2 Dewars.

Newly Designed Software

Users can easily operate the analyzer by following a simple, 3-step process:

  1. Type in the sample name
  2. Choose the measurement type
  3. Click “Start” to begin measurement

View in real-time to see the auto-calibration, adsorption, and desorption. A full surface area report will be complete in minutes.

Built-in functions allow for the optimization of the system for different sample types.

  • Gas concentration of mixed gases may be precisely controlled to give results identical to the multipoint method.
  • A wide variety of sample cells are available, allowing measurements to be made on diverse sample types.


Use the enhanced SA-9650 software to control the instrument via USB connection to a Windows PC or users can easily operate the analyzer by using the built-in computer with LCD display and keyboard.

High Throughput
Every SA-9650 model includes three sample preparation stations to improve workflow. Depending on the sample, users can complete a measurement procedure in 15 minutes for single-point or 45 minutes for multi-point.*

*Sample preparation (i.e. degassing) must be performed prior to measurement. Typical degas time is 1 hour at 200°C.


Fast and Reliable Surface Area Gas Analysis with the NEW SA-9650 Analyzer



BET Surface Area Measurement Range
Total Surface Area: 0.1 to 50 m2
Specific Surface Area: Approximately 0.01 – 2,000 m2/g
Much more sensitive to low surface area samples than volumetric type analyzers, allowing the use of samples less than 1g and as low as 0.1 square meters in the sample cell.

Accuracy and Precision
Reproducibility is better than 1% COV.
Accuracy is 5% on average for most samples.

The SA-9650 Series offers a full line of high-quality, high-performance BET Surface Area Analyzers to meet the needs of any research or quality assurance laboratory. The SA-9650 Series analyzers include:

  • SA-9650-1SP: One sample analysis station, three sample preparation stations.
  • SA-9650-1MP: One sample analysis station, three sample preparation stations, MFC gas mixture control and multi-point analysis.
  • SA-9650-3SP: Three sample analysis stations, three sample preparation stations.
  • SA-9650-3MP: Three sample analysis stations, three sample preparation stations, MFC gas mixture control and multi-point analysis.
Analysis Stations1133
Preparation Stations3333
Range0.10 to > 2000 square meters per gram
Repeatability<1% relative standard deviation (RSD)
Power Requirements100, 120, 220 or 240 volts AC, 50/60 Hz
Maximum peak power 200 Watts
Weight59 lbs
(26.76 kg)
62 lbs
(28.12 kg)
63 lbs
(28.58 kg)
66 lbs
(29.94 kg)
Dimensions26” H x 25” W x 20” D (66.1cm H x 63.5cm W x 50.8cm D)
Compliance(CE) Meets EU safety, health and environmental protection requirements.

SA-9650 models available in single station (left) or three stations (right).

    Surface Area of Graphite
    Surface Area of Graphite
    Graphite’s properties stem from its hexagonal lattice structure. It is composed of carbon atoms arranged in layers, each consisting of interconnected hexagonal rings. These layers can easily slide past one another, giving graphite its characteristic lubricity.
    Surface Area of Aluminum Oxide
    Surface Area of Aluminum Oxide
    Aluminum oxide, or alumina, is a compound composed of aluminum and oxygen. It is one of the most abundant minerals in the Earth’s crust and has many practical applications due to its unique properties.
    Surface Area of Hydroxyapatite
    Surface Area of Hydroxyapatite
    Hydroxyapatite is a naturally occurring mineral form of calcium apatite. It is the main mineral component of vertebrate bones and teeth and is also found in some other tissues like dentin and enamel.
    Surface Area of Calcium Carbonate
    Surface Area of Calcium Carbonate
    The surface area of calcium carbonate plays a crucial role in determining its reactivity, effectiveness, and performance in various applications. A larger surface area means more opportunities for reactions with other substances, such as acids or other chemicals.
    Surface Area of Bentonite
    Surface Area of Bentonite
    The surface area of bentonite is important because it significantly influences its reactivity, adsorption capacity, and effectiveness in various applications. Bentonite clay can have a high surface area due to its unique layered structure and microscopic particle size.
    Surface Area of Kaolinite
    Surface Area of Kaolinite
    One of the most widely distributed and common clay minerals is Kaolinite, a soft mineral produced by the chemical weathering of aluminum silicate minerals like feldspar. Kaolinite is milled to obtain target particle sizes and surface areas which are key to its use in different applications.
    Surface Area of Calcium Hydroxide
    Surface Area of Calcium Hydroxide
    Calcium hydroxide, also called slaked lime or hydrated lime, is a powder widely used in the chemical industry. The surface area of calcium hydroxide plays a key role in determining the manner and rate at which it reacts in chemical processes.

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