Ⅰ Outline 
"Cement compared to the Specific Surface area Determination Method Bravais Law" this company develops based on national standards GB8074-2008 develops the new completely automatic compared to table planimeter FBT-X, this instrument took the former generation product the promotion, the testing is simpler quickly, the test result computation precision increases, tentative data management simple highly effective.Is the test chamber as well as the development facility and so on the ideal product.

Instrument advantages
1. Users can freely adjust parameters such as porosity and density of the sample, greatly increasing the measurement range of the instrument.

2. The speed of the vacuum pump is continuously adjustable, providing more precise control over the pumping process.

3. Add a one click temperature calibration function to easily and quickly calibrate the current temperature value.

4. Add a one click calibration function for the photoelectric tube to effectively solve the problem of liquid level judgment errors caused by strong light testing environments or aging of the photoelectric tube during the testing process. The use of instruments is more reliable.

5. Unique intelligent photoelectric detection technology, which can complete experiments without using shading balls. Even in different ambient light environments, there is no need to manually adjust sensitivity, only one click calibration is needed to complete.

6. Adopting a 7-inch, 800 * 480 resolution color touch screen display, various data and real-time instrument status information are intuitively displayed, with a friendly human-computer interaction interface, making instrument operation faster and more efficient.

7. Up to 20 groups of standard samples are stored. It is not necessary to use the standard sample test again to obtain the standard sample information after replacing the tested sample every time, just call out the corresponding standard sample information before the test of the tested sample. Make the experimental process simpler and faster.

8. Storage of up to 200 sets of test samples. The storage order is arranged according to the experimental time, allowing users to quickly find the desired historical data. And the historical data storage content includes all parameter information of the experiment and corresponding standard sample test information.

9. Historical data can be managed separately or in batches, and users can delete useless data at will. When data is deleted, the storage space automatically manages the data and reorders it. Make the historical data interface display clearer and more understandable.

10. Unique USB drive export function, users can connect the USB drive to the instrument, export historical data to the USB drive, and then view and edit the data on the computer. They can also use the computer's office software to generate test reports and permanently save test information.

11. Real time printing of experimental data, reprinting of historical data, including all parameters of the experiment and corresponding parameter information of the standard sample. Viewing historical experimental information is faster and more efficient.

12. The instrument displays various prompt information in real-time and identifies its own fault information to assist users in operating the instrument and controlling experiments.

Ⅱ Technical parameters
The supply voltage is 220V±10%, 50HZ
The timing range is 0.1 seconds< T<500 seconds
Timing accuracy <0.1 seconds
Measurement accuracy ≤1%
Test temperature range 8-34 degrees C (subject to specification requirements)
The scope of application is specified in GB8074-2008，ASTM C204